diff --git a/.rubocop.yml b/.rubocop.yml
index 29fcedbd5..8f782e741 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -71,7 +71,6 @@ Style/TrailingCommaInArrayLiteral:
 Style/SymbolArray:
   Description: Using percent style obscures symbolic intent of array's contents.
   EnforcedStyle: brackets
-inherit_from: ".rubocop_todo.yml"
 RSpec/MessageSpies:
   EnforcedStyle: receive
 Style/Documentation:
diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 198402c84..c3fb6926b 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -1,10 +1,26 @@
+# This configuration was generated by
+# `rubocop --auto-gen-config`
+# on 2020-12-17 20:35:36 UTC using RuboCop version 1.6.1.
+# The point is for the user to remove these configuration records
+# one by one as the offenses are removed from the code base.
+# Note that changes in the inspected code, or installation of new
+# versions of RuboCop, may require this file to be generated again.
+
+# Offense count: 6
+# Configuration parameters: AllowComments.
+Lint/SuppressedException:
+  Exclude:
+    - 'lib/facter/facter_dot_d.rb'
+    - 'lib/puppet/functions/merge.rb'
+    - 'lib/puppet/parser/functions/getvar.rb'
+    - 'lib/puppet/parser/functions/has_interface_with.rb'
+
+# Offense count: 62
+# Configuration parameters: IgnoreSharedExamples.
 RSpec/NamedSubject:
   Enabled: false
-Lint/ScriptPermission:
-  Enabled: false
-Style/HashSyntax:
+
+# Offense count: 2
+RSpec/SubjectStub:
   Exclude:
-  - spec/spec_helper.rb
-  EnforcedStyle: hash_rockets
-Layout/IndentHeredoc:
-  Enabled: false
+    - 'spec/unit/facter/facter_dot_d_spec.rb'
diff --git a/.sync.yml b/.sync.yml
index 01c24d807..2fe796248 100644
--- a/.sync.yml
+++ b/.sync.yml
@@ -2,8 +2,7 @@
 ".gitlab-ci.yml":
   delete: true
 ".rubocop.yml":
-  default_configs:
-    inherit_from: ".rubocop_todo.yml"
+  include_todos: true
 ".travis.yml":
   global_env:
     - HONEYCOMB_WRITEKEY="7f3c63a70eecc61d635917de46bea4e6",HONEYCOMB_DATASET="litmus tests"
@@ -46,16 +45,9 @@ appveyor.yml:
     APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
   simplecov: true
 Gemfile:
-  use_litmus: true
   optional:
     ":development":
     - gem: github_changelog_generator
-      git: https://github.com/skywinder/github-changelog-generator
-      ref: 20ee04ba1234e9e83eb2ffb5056e23d641c7a018
-      condition: Gem::Version.new(RUBY_VERSION.dup) >= Gem::Version.new('2.2.2')
-Rakefile:
-  requires:
-  - puppet-lint/tasks/puppet-lint
 spec/spec_helper.rb:
   mock_with: ":rspec"
   coverage_report: true
diff --git a/Rakefile b/Rakefile
index a4f1b1d3e..2906c15ba 100644
--- a/Rakefile
+++ b/Rakefile
@@ -7,7 +7,6 @@ require 'puppet-syntax/tasks/puppet-syntax'
 require 'puppet_blacksmith/rake_tasks' if Bundler.rubygems.find_name('puppet-blacksmith').any?
 require 'github_changelog_generator/task' if Bundler.rubygems.find_name('github_changelog_generator').any?
 require 'puppet-strings/tasks' if Bundler.rubygems.find_name('puppet-strings').any?
-require 'puppet-lint/tasks/puppet-lint'
 
 def changelog_user
   return unless Rake.application.top_level_tasks.include? "changelog"
diff --git a/lib/facter/package_provider.rb b/lib/facter/package_provider.rb
index d993e79ef..02a1724cb 100644
--- a/lib/facter/package_provider.rb
+++ b/lib/facter/package_provider.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Fact: package_provider
 #
 # Purpose: Returns the default provider Puppet will choose to manage packages
@@ -15,9 +17,9 @@
   # Instantiates a dummy package resource and return the provider
   setcode do
     if defined? Gem && Gem::Version.new(Facter.value(:puppetversion).split(' ')[0]) >= Gem::Version.new('3.6')
-      Puppet::Type.type(:package).newpackage(:name => 'dummy', :allow_virtual => 'true')[:provider].to_s
+      Puppet::Type.type(:package).newpackage(name: 'dummy', allow_virtual: 'true')[:provider].to_s
     else
-      Puppet::Type.type(:package).newpackage(:name => 'dummy')[:provider].to_s
+      Puppet::Type.type(:package).newpackage(name: 'dummy')[:provider].to_s
     end
   end
 end
diff --git a/lib/facter/pe_version.rb b/lib/facter/pe_version.rb
index 81cd1fd02..9f514316e 100644
--- a/lib/facter/pe_version.rb
+++ b/lib/facter/pe_version.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Fact: is_pe, pe_version, pe_major_version, pe_minor_version, pe_patch_version
 #
 # Purpose: Return various facts about the PE state of the system
@@ -38,7 +40,7 @@
 
 # Fact: pe_major_version
 Facter.add('pe_major_version') do
-  confine :is_pe => true
+  confine is_pe: true
   setcode do
     pe_version = Facter.value(:pe_version)
     if pe_version
@@ -49,7 +51,7 @@
 
 # Fact: pe_minor_version
 Facter.add('pe_minor_version') do
-  confine :is_pe => true
+  confine is_pe: true
   setcode do
     pe_version = Facter.value(:pe_version)
     if pe_version
@@ -60,7 +62,7 @@
 
 # Fact: pe_patch_version
 Facter.add('pe_patch_version') do
-  confine :is_pe => true
+  confine is_pe: true
   setcode do
     pe_version = Facter.value(:pe_version)
     if pe_version
diff --git a/lib/facter/puppet_settings.rb b/lib/facter/puppet_settings.rb
index 97deaad7e..951b2eb7c 100644
--- a/lib/facter/puppet_settings.rb
+++ b/lib/facter/puppet_settings.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # These facter facts return the value of the Puppet vardir and environment path
 # settings for the node running puppet or puppet agent.  The intent is to
 # enable Puppet modules to automatically have insight into a place where they
diff --git a/lib/facter/root_home.rb b/lib/facter/root_home.rb
index 7544dd09e..257a18217 100644
--- a/lib/facter/root_home.rb
+++ b/lib/facter/root_home.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # root_home.rb
 module Facter::Util::RootHome
   # @summary
@@ -5,14 +7,14 @@ module Facter::Util::RootHome
   #   This varies on PE supported platforms and may be
   #   reconfigured by the end user.
   class << self
-  # determines the root home directory
-  def returnt_root_home
-    root_ent = Facter::Util::Resolution.exec('getent passwd root')
-    # The home directory is the sixth element in the passwd entry
-    # If the platform doesn't have getent, root_ent will be nil and we should
-    # return it straight away.
-    root_ent && root_ent.split(':')[5]
-  end
+    # determines the root home directory
+    def returnt_root_home
+      root_ent = Facter::Util::Resolution.exec('getent passwd root')
+      # The home directory is the sixth element in the passwd entry
+      # If the platform doesn't have getent, root_ent will be nil and we should
+      # return it straight away.
+      root_ent && root_ent.split(':')[5]
+    end
   end
 end
 
@@ -21,7 +23,7 @@ def returnt_root_home
 end
 
 Facter.add(:root_home) do
-  confine :kernel => :darwin
+  confine kernel: :darwin
   setcode do
     str = Facter::Util::Resolution.exec('dscacheutil -q user -a name root')
     hash = {}
@@ -34,12 +36,12 @@ def returnt_root_home
 end
 
 Facter.add(:root_home) do
-  confine :kernel => :aix
+  confine kernel: :aix
   root_home = nil
   setcode do
     str = Facter::Util::Resolution.exec('lsuser -c -a home root')
-    str && str.split("\n").each do |line|
-      next if line =~ %r{^#}
+    str&.split("\n")&.each do |line|
+      next if %r{^#}.match?(line)
       root_home = line.split(%r{:})[1]
     end
     root_home
diff --git a/lib/facter/service_provider.rb b/lib/facter/service_provider.rb
index a11792115..3d4e44a57 100644
--- a/lib/facter/service_provider.rb
+++ b/lib/facter/service_provider.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Fact: service_provider
 #
 # Purpose: Returns the default provider Puppet will choose to manage services
@@ -12,6 +14,6 @@
 
 Facter.add(:service_provider) do
   setcode do
-    Puppet::Type.type(:service).newservice(:name => 'dummy')[:provider].to_s
+    Puppet::Type.type(:service).newservice(name: 'dummy')[:provider].to_s
   end
 end
diff --git a/lib/facter/util/puppet_settings.rb b/lib/facter/util/puppet_settings.rb
index d12e92c97..df2ed5963 100644
--- a/lib/facter/util/puppet_settings.rb
+++ b/lib/facter/util/puppet_settings.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # A method to evaluate a Facter code block if puppet is loaded.
 module Facter::Util::PuppetSettings
   # This method is intended to provide a convenient way to evaluate a
diff --git a/lib/puppet/functions/deprecation.rb b/lib/puppet/functions/deprecation.rb
index 2f6b0c0ed..f71924fd9 100644
--- a/lib/puppet/functions/deprecation.rb
+++ b/lib/puppet/functions/deprecation.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #   Function to print deprecation warnings, Logs a warning once for a given key.
 #
 # The uniqueness key - can appear once.
@@ -25,7 +27,7 @@ def deprecation(key, message)
     end
     # depending on configuration setting of strict
     case Puppet.settings[:strict]
-    when :off # rubocop:disable Lint/EmptyWhen : Is required to prevent false errors
+    when :off
       # do nothing
     when :error
       raise("deprecation. #{key}. #{message}")
diff --git a/lib/puppet/functions/fact.rb b/lib/puppet/functions/fact.rb
index c963d1665..c450436ca 100644
--- a/lib/puppet/functions/fact.rb
+++ b/lib/puppet/functions/fact.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Digs into the facts hash using dot-notation
 #
diff --git a/lib/puppet/functions/is_a.rb b/lib/puppet/functions/is_a.rb
index 0302df92d..275d21815 100644
--- a/lib/puppet/functions/is_a.rb
+++ b/lib/puppet/functions/is_a.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Boolean check to determine whether a variable is of a given data type.
 #   This is equivalent to the `=~` type checks.
@@ -35,7 +37,7 @@
     param 'Type', :type
   end
 
-  def is_a(value, type) # rubocop:disable Style/PredicateName : Used in to many other places to rename at this time, attempting to refactor caused Rubocop to crash.
+  def is_a(value, type) # rubocop:disable Naming/PredicateName : Used in to many other places to rename at this time, attempting to refactor caused Rubocop to crash.
     # See puppet's lib/puppet/pops/evaluator/evaluator_impl.rb eval_MatchExpression
     Puppet::Pops::Types::TypeCalculator.instance?(type, value)
   end
diff --git a/lib/puppet/functions/is_absolute_path.rb b/lib/puppet/functions/is_absolute_path.rb
index ea8383e35..b801ecb61 100644
--- a/lib/puppet/functions/is_absolute_path.rb
+++ b/lib/puppet/functions/is_absolute_path.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Wrapper that calls the Puppet 3.x function of the same name.
 Puppet::Functions.create_function(:is_absolute_path) do
diff --git a/lib/puppet/functions/is_array.rb b/lib/puppet/functions/is_array.rb
index 8f17782b1..0a53e07e2 100644
--- a/lib/puppet/functions/is_array.rb
+++ b/lib/puppet/functions/is_array.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Wrapper that calls the Puppet 3.x function of the same name.
 Puppet::Functions.create_function(:is_array) do
diff --git a/lib/puppet/functions/is_bool.rb b/lib/puppet/functions/is_bool.rb
index bc243f185..fa8170933 100644
--- a/lib/puppet/functions/is_bool.rb
+++ b/lib/puppet/functions/is_bool.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Wrapper that calls the Puppet 3.x function of the same name.
 Puppet::Functions.create_function(:is_bool) do
diff --git a/lib/puppet/functions/is_float.rb b/lib/puppet/functions/is_float.rb
index f6ea472d5..408970b25 100644
--- a/lib/puppet/functions/is_float.rb
+++ b/lib/puppet/functions/is_float.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Wrapper that calls the Puppet 3.x function of the same name.
 Puppet::Functions.create_function(:is_float) do
diff --git a/lib/puppet/functions/is_ip_address.rb b/lib/puppet/functions/is_ip_address.rb
index 1f2409d35..3e1e015ca 100644
--- a/lib/puppet/functions/is_ip_address.rb
+++ b/lib/puppet/functions/is_ip_address.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Wrapper that calls the Puppet 3.x function of the same name.
 Puppet::Functions.create_function(:is_ip_address) do
diff --git a/lib/puppet/functions/is_ipv4_address.rb b/lib/puppet/functions/is_ipv4_address.rb
index c9d5aa8e2..8a79a16dc 100644
--- a/lib/puppet/functions/is_ipv4_address.rb
+++ b/lib/puppet/functions/is_ipv4_address.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Wrapper that calls the Puppet 3.x function of the same name.
 Puppet::Functions.create_function(:is_ipv4_address) do
diff --git a/lib/puppet/functions/is_ipv6_address.rb b/lib/puppet/functions/is_ipv6_address.rb
index 02cb58d6a..7833960f6 100644
--- a/lib/puppet/functions/is_ipv6_address.rb
+++ b/lib/puppet/functions/is_ipv6_address.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Wrapper that calls the Puppet 3.x function of the same name.
 Puppet::Functions.create_function(:is_ipv6_address) do
diff --git a/lib/puppet/functions/is_numeric.rb b/lib/puppet/functions/is_numeric.rb
index 1dcf576a7..06fcacc91 100644
--- a/lib/puppet/functions/is_numeric.rb
+++ b/lib/puppet/functions/is_numeric.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Wrapper that calls the Puppet 3.x function of the same name.
 Puppet::Functions.create_function(:is_numeric) do
diff --git a/lib/puppet/functions/is_string.rb b/lib/puppet/functions/is_string.rb
index 1cbb146ff..b36796164 100644
--- a/lib/puppet/functions/is_string.rb
+++ b/lib/puppet/functions/is_string.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Wrapper that calls the Puppet 3.x function of the same name.
 Puppet::Functions.create_function(:is_string) do
diff --git a/lib/puppet/functions/length.rb b/lib/puppet/functions/length.rb
index 9a163deaf..d2e356ca6 100644
--- a/lib/puppet/functions/length.rb
+++ b/lib/puppet/functions/length.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   **Deprecated:** A function to eventually replace the old size() function for stdlib
 #
diff --git a/lib/puppet/functions/merge.rb b/lib/puppet/functions/merge.rb
index dd65cbc4c..d94a7936d 100644
--- a/lib/puppet/functions/merge.rb
+++ b/lib/puppet/functions/merge.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Merges two or more hashes together or hashes resulting from iteration, and returns
 #   the resulting hash.
@@ -102,7 +104,7 @@ def merge_iterable3(iterable)
           accumulator.merge!(r) if r.is_a?(Hash)
           index += 1
         end
-      rescue StopIteration # rubocop:disable Lint/HandleExceptions
+      rescue StopIteration
       end
     end
     accumulator
diff --git a/lib/puppet/functions/os_version_gte.rb b/lib/puppet/functions/os_version_gte.rb
index 7ab095e82..c0e004322 100644
--- a/lib/puppet/functions/os_version_gte.rb
+++ b/lib/puppet/functions/os_version_gte.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Checks if the OS version is at least a certain version.
 # > *Note:*
diff --git a/lib/puppet/functions/seeded_rand_string.rb b/lib/puppet/functions/seeded_rand_string.rb
index 63cb2f83c..e9dee5cae 100644
--- a/lib/puppet/functions/seeded_rand_string.rb
+++ b/lib/puppet/functions/seeded_rand_string.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Generates a consistent random string of specific length based on provided seed.
 #
diff --git a/lib/puppet/functions/sprintf_hash.rb b/lib/puppet/functions/sprintf_hash.rb
index ddf82b55b..42d27403a 100644
--- a/lib/puppet/functions/sprintf_hash.rb
+++ b/lib/puppet/functions/sprintf_hash.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #  Uses sprintf with named references.
 #
diff --git a/lib/puppet/functions/stdlib/end_with.rb b/lib/puppet/functions/stdlib/end_with.rb
index fc83f70aa..6c640890c 100644
--- a/lib/puppet/functions/stdlib/end_with.rb
+++ b/lib/puppet/functions/stdlib/end_with.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Returns true if str ends with one of the prefixes given. Each of the prefixes should be a String.
 #
diff --git a/lib/puppet/functions/stdlib/extname.rb b/lib/puppet/functions/stdlib/extname.rb
index 120b46b22..7de9d50a6 100644
--- a/lib/puppet/functions/stdlib/extname.rb
+++ b/lib/puppet/functions/stdlib/extname.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Returns the Extension (the Portion of Filename in Path starting from the
 #   last Period).
diff --git a/lib/puppet/functions/stdlib/ip_in_range.rb b/lib/puppet/functions/stdlib/ip_in_range.rb
index 46fc44548..eed5c0b2e 100644
--- a/lib/puppet/functions/stdlib/ip_in_range.rb
+++ b/lib/puppet/functions/stdlib/ip_in_range.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Returns true if the ipaddress is within the given CIDRs
 #
diff --git a/lib/puppet/functions/stdlib/start_with.rb b/lib/puppet/functions/stdlib/start_with.rb
index 28f01bbd5..5203baf4f 100644
--- a/lib/puppet/functions/stdlib/start_with.rb
+++ b/lib/puppet/functions/stdlib/start_with.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Returns true if str starts with one of the prefixes given. Each of the prefixes should be a String.
 #
diff --git a/lib/puppet/functions/to_json.rb b/lib/puppet/functions/to_json.rb
index 20d39e76f..7ff605d21 100644
--- a/lib/puppet/functions/to_json.rb
+++ b/lib/puppet/functions/to_json.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'json'
 # @summary
 #   Convert a data structure and output to JSON
diff --git a/lib/puppet/functions/to_json_pretty.rb b/lib/puppet/functions/to_json_pretty.rb
index 8a63f697d..7d46fc2dc 100644
--- a/lib/puppet/functions/to_json_pretty.rb
+++ b/lib/puppet/functions/to_json_pretty.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'json'
 
 # @summary
diff --git a/lib/puppet/functions/to_yaml.rb b/lib/puppet/functions/to_yaml.rb
index fe8ec5036..781ea3334 100644
--- a/lib/puppet/functions/to_yaml.rb
+++ b/lib/puppet/functions/to_yaml.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'yaml'
 # @summary
 #   Convert a data structure and output it as YAML
diff --git a/lib/puppet/functions/type_of.rb b/lib/puppet/functions/type_of.rb
index e74565932..a05eeeb8d 100644
--- a/lib/puppet/functions/type_of.rb
+++ b/lib/puppet/functions/type_of.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Returns the type of the passed value.
 #
diff --git a/lib/puppet/functions/validate_absolute_path.rb b/lib/puppet/functions/validate_absolute_path.rb
index ed7f07004..9121cbbb6 100644
--- a/lib/puppet/functions/validate_absolute_path.rb
+++ b/lib/puppet/functions/validate_absolute_path.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Validate the string represents an absolute path in the filesystem.
 Puppet::Functions.create_function(:validate_absolute_path) do
diff --git a/lib/puppet/functions/validate_array.rb b/lib/puppet/functions/validate_array.rb
index 217df762f..4287aa8c5 100644
--- a/lib/puppet/functions/validate_array.rb
+++ b/lib/puppet/functions/validate_array.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Validate the passed value represents an array.
 Puppet::Functions.create_function(:validate_array) do
diff --git a/lib/puppet/functions/validate_bool.rb b/lib/puppet/functions/validate_bool.rb
index 85892ddad..a080a4112 100644
--- a/lib/puppet/functions/validate_bool.rb
+++ b/lib/puppet/functions/validate_bool.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Validate the passed value represents a boolean.
 Puppet::Functions.create_function(:validate_bool) do
diff --git a/lib/puppet/functions/validate_hash.rb b/lib/puppet/functions/validate_hash.rb
index 5efa25fe7..77370e20b 100644
--- a/lib/puppet/functions/validate_hash.rb
+++ b/lib/puppet/functions/validate_hash.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Validate the passed value represents a hash.
 Puppet::Functions.create_function(:validate_hash) do
diff --git a/lib/puppet/functions/validate_integer.rb b/lib/puppet/functions/validate_integer.rb
index 7de789ece..ae8e90f3f 100644
--- a/lib/puppet/functions/validate_integer.rb
+++ b/lib/puppet/functions/validate_integer.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Validate the passed value represents an integer.
 Puppet::Functions.create_function(:validate_integer) do
diff --git a/lib/puppet/functions/validate_ip_address.rb b/lib/puppet/functions/validate_ip_address.rb
index 233f083d4..706405262 100644
--- a/lib/puppet/functions/validate_ip_address.rb
+++ b/lib/puppet/functions/validate_ip_address.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Validate the passed value represents an ip_address.
 Puppet::Functions.create_function(:validate_ip_address) do
diff --git a/lib/puppet/functions/validate_ipv4_address.rb b/lib/puppet/functions/validate_ipv4_address.rb
index 799f60894..090292b10 100644
--- a/lib/puppet/functions/validate_ipv4_address.rb
+++ b/lib/puppet/functions/validate_ipv4_address.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Validate the passed value represents an ipv4_address.
 Puppet::Functions.create_function(:validate_ipv4_address) do
diff --git a/lib/puppet/functions/validate_ipv6_address.rb b/lib/puppet/functions/validate_ipv6_address.rb
index b51464254..540842b48 100644
--- a/lib/puppet/functions/validate_ipv6_address.rb
+++ b/lib/puppet/functions/validate_ipv6_address.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Validate the passed value represents an ipv6_address.
 Puppet::Functions.create_function(:validate_ipv6_address) do
diff --git a/lib/puppet/functions/validate_legacy.rb b/lib/puppet/functions/validate_legacy.rb
index 1e1621924..44335fb6f 100644
--- a/lib/puppet/functions/validate_legacy.rb
+++ b/lib/puppet/functions/validate_legacy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Validate a value against both the target_type (new) and the previous_validation function (old).
 Puppet::Functions.create_function(:validate_legacy) do
diff --git a/lib/puppet/functions/validate_numeric.rb b/lib/puppet/functions/validate_numeric.rb
index f98fa7463..c9daa75bc 100644
--- a/lib/puppet/functions/validate_numeric.rb
+++ b/lib/puppet/functions/validate_numeric.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Validate the passed value represents a numeric value.
 Puppet::Functions.create_function(:validate_numeric) do
diff --git a/lib/puppet/functions/validate_re.rb b/lib/puppet/functions/validate_re.rb
index d1695df56..eaea9b6d8 100644
--- a/lib/puppet/functions/validate_re.rb
+++ b/lib/puppet/functions/validate_re.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #  Perform validation of a string against one or more regular
 #  expressions.
diff --git a/lib/puppet/functions/validate_slength.rb b/lib/puppet/functions/validate_slength.rb
index aa4143ba9..f34e705b9 100644
--- a/lib/puppet/functions/validate_slength.rb
+++ b/lib/puppet/functions/validate_slength.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #  Validate that a passed string has length less/equal with the passed value
 Puppet::Functions.create_function(:validate_slength) do
   # @param scope
diff --git a/lib/puppet/functions/validate_string.rb b/lib/puppet/functions/validate_string.rb
index 50b1dafbc..a946da94a 100644
--- a/lib/puppet/functions/validate_string.rb
+++ b/lib/puppet/functions/validate_string.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # @summary
 #   Validate that all passed values are string data structures.
 Puppet::Functions.create_function(:validate_string) do
diff --git a/lib/puppet/parser/functions/abs.rb b/lib/puppet/parser/functions/abs.rb
index 5625b984c..822bc5dbb 100644
--- a/lib/puppet/parser/functions/abs.rb
+++ b/lib/puppet/parser/functions/abs.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # abs.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:abs, :type => :rvalue, :doc => <<-DOC
+  newfunction(:abs, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns the absolute value of a number
 
@@ -16,17 +18,16 @@ module Puppet::Parser::Functions
     @return The absolute value of the given number if it was an Integer
 
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "abs(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     value = arguments[0]
 
     # Numbers in Puppet are often string-encoded which is troublesome ...
     if value.is_a?(String)
-      if value =~ %r{^-?(?:\d+)(?:\.\d+){1}$}
+      if %r{^-?(?:\d+)(?:\.\d+){1}$}.match?(value)
         value = value.to_f
-      elsif value =~ %r{^-?\d+$}
+      elsif %r{^-?\d+$}.match?(value)
         value = value.to_i
       else
         raise(Puppet::ParseError, 'abs(): Requires float or integer to work with')
diff --git a/lib/puppet/parser/functions/any2array.rb b/lib/puppet/parser/functions/any2array.rb
index b45e5b50b..107c11dce 100644
--- a/lib/puppet/parser/functions/any2array.rb
+++ b/lib/puppet/parser/functions/any2array.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # any2array.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:any2array, :type => :rvalue, :doc => <<-DOC
+  newfunction(:any2array, type: :rvalue, doc: <<-DOC
     @summary
       This converts any object to an array containing that object.
 
@@ -33,8 +35,7 @@ module Puppet::Parser::Functions
 
     @return [Array] The new array containing the given object
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     if arguments.empty?
       return []
     end
diff --git a/lib/puppet/parser/functions/any2bool.rb b/lib/puppet/parser/functions/any2bool.rb
index c4b20d674..0215d19bc 100644
--- a/lib/puppet/parser/functions/any2bool.rb
+++ b/lib/puppet/parser/functions/any2bool.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # any2bool.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:any2bool, :type => :rvalue, :doc => <<-DOC
+  newfunction(:any2bool, type: :rvalue, doc: <<-DOC
     @summary
       Converts 'anything' to a boolean.
 
@@ -19,8 +21,7 @@ module Puppet::Parser::Functions
 
     @return [Boolean] The boolean value of the object that was given
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "any2bool(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     # If argument is already Boolean, return it
diff --git a/lib/puppet/parser/functions/assert_private.rb b/lib/puppet/parser/functions/assert_private.rb
index 4f1a5e26c..0e64bd67a 100644
--- a/lib/puppet/parser/functions/assert_private.rb
+++ b/lib/puppet/parser/functions/assert_private.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # assert_private.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:assert_private, :doc => <<-DOC
+  newfunction(:assert_private, doc: <<-DOC
     @summary
       Sets the current class or definition as private.
 
@@ -11,14 +13,13 @@ module Puppet::Parser::Functions
 
     Calling the class or definition from outside the current module will fail.
     DOC
-             ) do |args|
-
+  ) do |args|
     raise(Puppet::ParseError, "assert_private(): Wrong number of arguments given (#{args.size}}) for 0 or 1)") if args.size > 1
 
     scope = self
     if scope.lookupvar('module_name') != scope.lookupvar('caller_module_name')
       message = nil
-      if args[0] && args[0].is_a?(String)
+      if args[0]&.is_a?(String)
         message = args[0]
       else
         manifest_name = scope.source.name
diff --git a/lib/puppet/parser/functions/base64.rb b/lib/puppet/parser/functions/base64.rb
index 45e1fdbc5..1fe2751b2 100644
--- a/lib/puppet/parser/functions/base64.rb
+++ b/lib/puppet/parser/functions/base64.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 #  Please note: This function is an implementation of a Ruby class and as such may not be entirely UTF8 compatible. To ensure compatibility please use this function with Ruby 2.4.0 or greater - https://bugs.ruby-lang.org/issues/10085.
 module Puppet::Parser::Functions
-  newfunction(:base64, :type => :rvalue, :doc => <<-DOC) do |args|
+  newfunction(:base64, type: :rvalue, doc: <<-DOC) do |args|
     @summary
       Base64 encode or decode a string based on the command and the string submitted
 
diff --git a/lib/puppet/parser/functions/basename.rb b/lib/puppet/parser/functions/basename.rb
index e247e566a..176182122 100644
--- a/lib/puppet/parser/functions/basename.rb
+++ b/lib/puppet/parser/functions/basename.rb
@@ -1,15 +1,16 @@
+# frozen_string_literal: true
+
 #
 # basename.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:basename, :type => :rvalue, :doc => <<-DOC
+  newfunction(:basename, type: :rvalue, doc: <<-DOC
     @summary
       Strips directory (and optional suffix) from a filename
 
     @return [String] The stripped filename
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, 'basename(): No arguments given') if arguments.empty?
     raise(Puppet::ParseError, "basename(): Too many arguments given (#{arguments.size})") if arguments.size > 2
     raise(Puppet::ParseError, 'basename(): Requires string as first argument') unless arguments[0].is_a?(String)
diff --git a/lib/puppet/parser/functions/bool2num.rb b/lib/puppet/parser/functions/bool2num.rb
index bafe0bd43..a55e5cc3f 100644
--- a/lib/puppet/parser/functions/bool2num.rb
+++ b/lib/puppet/parser/functions/bool2num.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # bool2num.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:bool2num, :type => :rvalue, :doc => <<-DOC
+  newfunction(:bool2num, type: :rvalue, doc: <<-DOC
     @summary
       Converts a boolean to a number.
 
@@ -27,8 +29,7 @@ module Puppet::Parser::Functions
 
     @return [Integer] The converted value as a number
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "bool2num(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     value = function_str2bool([arguments[0]])
diff --git a/lib/puppet/parser/functions/bool2str.rb b/lib/puppet/parser/functions/bool2str.rb
index f55fcd835..03d53d4f2 100644
--- a/lib/puppet/parser/functions/bool2str.rb
+++ b/lib/puppet/parser/functions/bool2str.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # bool2str.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:bool2str, :type => :rvalue, :doc => <<-DOC
+  newfunction(:bool2str, type: :rvalue, doc: <<-DOC
     @summary
       Converts a boolean to a string using optionally supplied arguments.
 
@@ -36,8 +38,7 @@ module Puppet::Parser::Functions
         notice(String(true, '%y'))    # Notices 'no'
       ```
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     unless arguments.size == 1 || arguments.size == 3
       raise(Puppet::ParseError, "bool2str(): Wrong number of arguments given (#{arguments.size} for 3)")
     end
diff --git a/lib/puppet/parser/functions/camelcase.rb b/lib/puppet/parser/functions/camelcase.rb
index ad1068b3f..4e6330cbd 100644
--- a/lib/puppet/parser/functions/camelcase.rb
+++ b/lib/puppet/parser/functions/camelcase.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 #
 #  camelcase.rb
 #  Please note: This function is an implementation of a Ruby class and as such may not be entirely UTF8 compatible. To ensure compatibility please use this function with Ruby 2.4.0 or greater - https://bugs.ruby-lang.org/issues/10085.
 #
 module Puppet::Parser::Functions
-  newfunction(:camelcase, :type => :rvalue, :doc => <<-DOC
+  newfunction(:camelcase, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated** Converts the case of a string or all strings in an array to camel case.
 
@@ -15,8 +17,7 @@ module Puppet::Parser::Functions
     @return [String] The converted String, if it was a String that was given
     @return [Array[String]] The converted Array, if it was a Array that was given
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "camelcase(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     value = arguments[0]
diff --git a/lib/puppet/parser/functions/capitalize.rb b/lib/puppet/parser/functions/capitalize.rb
index ffc4d1386..fef44937b 100644
--- a/lib/puppet/parser/functions/capitalize.rb
+++ b/lib/puppet/parser/functions/capitalize.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 #
 #  capitalize.rb
 #  Please note: This function is an implementation of a Ruby class and as such may not be entirely UTF8 compatible. To ensure compatibility please use this function with Ruby 2.4.0 or greater - https://bugs.ruby-lang.org/issues/10085.
 #
 module Puppet::Parser::Functions
-  newfunction(:capitalize, :type => :rvalue, :doc => <<-DOC
+  newfunction(:capitalize, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated** Capitalizes the first letter of a string or array of strings.
 
@@ -17,8 +19,7 @@ module Puppet::Parser::Functions
     @return [String] The converted String, if it was a String that was given
     @return [Array[String]] The converted Array, if it was a Array that was given
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "capitalize(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     value = arguments[0]
diff --git a/lib/puppet/parser/functions/ceiling.rb b/lib/puppet/parser/functions/ceiling.rb
index ea50e880c..b8012356d 100644
--- a/lib/puppet/parser/functions/ceiling.rb
+++ b/lib/puppet/parser/functions/ceiling.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 #  ceiling.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:ceiling, :type => :rvalue, :doc => <<-DOC
+  newfunction(:ceiling, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated** Returns the smallest integer greater or equal to the argument.
     Takes a single numeric value as an argument.
@@ -13,8 +15,7 @@ module Puppet::Parser::Functions
 
     @return [Integer] The rounded value
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "ceiling(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.size != 1
 
     begin
diff --git a/lib/puppet/parser/functions/chomp.rb b/lib/puppet/parser/functions/chomp.rb
index c917d580a..84aeaf1e9 100644
--- a/lib/puppet/parser/functions/chomp.rb
+++ b/lib/puppet/parser/functions/chomp.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 #  chomp.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:chomp, :type => :rvalue, :doc => <<-DOC
+  newfunction(:chomp, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated** Removes the record separator from the end of a string or an array of strings.
 
@@ -16,8 +18,7 @@ module Puppet::Parser::Functions
     @return [String] The converted String, if it was a String that was given
     @return [Array[String]] The converted Array, if it was a Array that was given
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "chomp(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     value = arguments[0]
diff --git a/lib/puppet/parser/functions/chop.rb b/lib/puppet/parser/functions/chop.rb
index 69b5f3ffc..2e4b0543d 100644
--- a/lib/puppet/parser/functions/chop.rb
+++ b/lib/puppet/parser/functions/chop.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 #  chop.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:chop, :type => :rvalue, :doc => <<-DOC
+  newfunction(:chop, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated** Returns a new string with the last character removed.
 
@@ -16,8 +18,7 @@ module Puppet::Parser::Functions
 
     @return [String] The given String, sans the last character.
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "chop(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     value = arguments[0]
diff --git a/lib/puppet/parser/functions/clamp.rb b/lib/puppet/parser/functions/clamp.rb
index 1b6e2d292..c05688498 100644
--- a/lib/puppet/parser/functions/clamp.rb
+++ b/lib/puppet/parser/functions/clamp.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # clamp.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:clamp, :type => :rvalue, :arity => -2, :doc => <<-DOC
+  newfunction(:clamp, type: :rvalue, arity: -2, doc: <<-DOC
     @summary
       Keeps value within the range [Min, X, Max] by sort based on integer value
       (parameter order doesn't matter).
@@ -22,8 +24,7 @@ module Puppet::Parser::Functions
 
     @return [Array[Integer]] The sorted Array
     DOC
-             ) do |args|
-
+  ) do |args|
     args.flatten!
 
     raise(Puppet::ParseError, 'clamp(): Wrong number of arguments, need three to clamp') if args.size != 3
@@ -32,7 +33,7 @@ module Puppet::Parser::Functions
     args.each do |value|
       case [value.class]
       when [String]
-        raise(Puppet::ParseError, "clamp(): Required explicit numeric (#{value}:String)") unless value =~ %r{^\d+$}
+        raise(Puppet::ParseError, "clamp(): Required explicit numeric (#{value}:String)") unless %r{^\d+$}.match?(value)
       when [Hash]
         raise(Puppet::ParseError, "clamp(): The Hash type is not allowed (#{value})")
       end
diff --git a/lib/puppet/parser/functions/concat.rb b/lib/puppet/parser/functions/concat.rb
index d3c2e2433..2ee1c2ab4 100644
--- a/lib/puppet/parser/functions/concat.rb
+++ b/lib/puppet/parser/functions/concat.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # concat.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:concat, :type => :rvalue, :doc => <<-DOC
+  newfunction(:concat, type: :rvalue, doc: <<-DOC
     @summary
       Appends the contents of multiple arrays into array 1.
 
@@ -21,8 +23,7 @@ module Puppet::Parser::Functions
 
     @return [Array] The single concatenated array
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     # Check that more than 2 arguments have been given ...
     raise(Puppet::ParseError, "concat(): Wrong number of arguments given (#{arguments.size} for < 2)") if arguments.size < 2
 
diff --git a/lib/puppet/parser/functions/convert_base.rb b/lib/puppet/parser/functions/convert_base.rb
index 3e4c89fa8..d6554192d 100644
--- a/lib/puppet/parser/functions/convert_base.rb
+++ b/lib/puppet/parser/functions/convert_base.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # convert_base.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:convert_base, :type => :rvalue, :arity => 2, :doc => <<-'DOC') do |args|
+  newfunction(:convert_base, type: :rvalue, arity: 2, doc: <<-'DOC') do |args|
     @summary
       Converts a given integer or base 10 string representing an integer to a
       specified base, as a string.
@@ -31,11 +33,11 @@ module Puppet::Parser::Functions
     raise Puppet::ParseError, 'convert_base(): Second argument must be either a string or an integer' unless args[1].is_a?(Integer) || args[1].is_a?(String)
 
     if args[0].is_a?(String)
-      raise Puppet::ParseError, 'convert_base(): First argument must be an integer or a string corresponding to an integer in base 10' unless args[0] =~ %r{^[0-9]+$}
+      raise Puppet::ParseError, 'convert_base(): First argument must be an integer or a string corresponding to an integer in base 10' unless %r{^[0-9]+$}.match?(args[0])
     end
 
     if args[1].is_a?(String)
-      raise Puppet::ParseError, 'convert_base(): First argument must be an integer or a string corresponding to an integer in base 10' unless args[1] =~ %r{^[0-9]+$}
+      raise Puppet::ParseError, 'convert_base(): First argument must be an integer or a string corresponding to an integer in base 10' unless %r{^[0-9]+$}.match?(args[1])
     end
 
     number_to_convert = args[0]
diff --git a/lib/puppet/parser/functions/count.rb b/lib/puppet/parser/functions/count.rb
index c302aa196..b2bd89a3e 100644
--- a/lib/puppet/parser/functions/count.rb
+++ b/lib/puppet/parser/functions/count.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # count.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:count, :type => :rvalue, :arity => -2, :doc => <<-DOC
+  newfunction(:count, type: :rvalue, arity: -2, doc: <<-DOC
     @summary
       Counts the number of elements in array.
 
@@ -24,8 +26,7 @@ module Puppet::Parser::Functions
 
     @return [Integer] The amount of elements counted within the array
   DOC
-             ) do |args|
-
+  ) do |args|
     if args.size > 2
       raise(ArgumentError, "count(): Wrong number of arguments given #{args.size} for 1 or 2.")
     end
diff --git a/lib/puppet/parser/functions/deep_merge.rb b/lib/puppet/parser/functions/deep_merge.rb
index bf62576cf..bd796ec63 100644
--- a/lib/puppet/parser/functions/deep_merge.rb
+++ b/lib/puppet/parser/functions/deep_merge.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # deep_merge.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:deep_merge, :type => :rvalue, :doc => <<-'DOC') do |args|
+  newfunction(:deep_merge, type: :rvalue, doc: <<-'DOC') do |args|
     @summary
       Recursively merges two or more hashes together and returns the resulting hash.
 
diff --git a/lib/puppet/parser/functions/defined_with_params.rb b/lib/puppet/parser/functions/defined_with_params.rb
index daac56799..74fc67a6e 100644
--- a/lib/puppet/parser/functions/defined_with_params.rb
+++ b/lib/puppet/parser/functions/defined_with_params.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 # Test whether a given class or definition is defined
 require 'puppet/parser/functions'
 
 Puppet::Parser::Functions.newfunction(:defined_with_params,
-                                      :type => :rvalue,
-                                      :doc => <<-DOC
+                                      type: :rvalue,
+                                      doc: <<-DOC,
     @summary
       Takes a resource reference and an optional hash of attributes.
 
diff --git a/lib/puppet/parser/functions/delete.rb b/lib/puppet/parser/functions/delete.rb
index bf614f773..e66b3c4c8 100644
--- a/lib/puppet/parser/functions/delete.rb
+++ b/lib/puppet/parser/functions/delete.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # delete.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:delete, :type => :rvalue, :doc => <<-DOC
+  newfunction(:delete, type: :rvalue, doc: <<-DOC
     @summary
       Deletes all instances of a given element from an array, substring from a
       string, or key from a hash.
@@ -45,8 +47,7 @@ module Puppet::Parser::Functions
     @return [Hash] The filtered Hash, if one was given.
     @return [Array] The filtered Array, if one was given.
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "delete(): Wrong number of arguments given #{arguments.size} for 2") unless arguments.size == 2
 
     collection = arguments[0].dup
diff --git a/lib/puppet/parser/functions/delete_at.rb b/lib/puppet/parser/functions/delete_at.rb
index 992d7d8d6..12cba08d2 100644
--- a/lib/puppet/parser/functions/delete_at.rb
+++ b/lib/puppet/parser/functions/delete_at.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # delete_at.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:delete_at, :type => :rvalue, :doc => <<-DOC) do |arguments|
+  newfunction(:delete_at, type: :rvalue, doc: <<-DOC) do |arguments|
     @summary
       Deletes a determined indexed value from an array.
 
diff --git a/lib/puppet/parser/functions/delete_regex.rb b/lib/puppet/parser/functions/delete_regex.rb
index 36451919d..0f1417751 100644
--- a/lib/puppet/parser/functions/delete_regex.rb
+++ b/lib/puppet/parser/functions/delete_regex.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 #
 #  delete_regex.rb
 #  Please note: This function is an implementation of a Ruby class and as such may not be entirely UTF8 compatible. To ensure compatibility please use this function with Ruby 2.4.0 or greater - https://bugs.ruby-lang.org/issues/10085.
 #
 module Puppet::Parser::Functions
-  newfunction(:delete_regex, :type => :rvalue, :doc => <<-DOC
+  newfunction(:delete_regex, type: :rvalue, doc: <<-DOC
     @summary
       Deletes all instances of a given element that match a regular expression
       from an array or key from a hash.
@@ -32,8 +34,7 @@ module Puppet::Parser::Functions
 
     @return [Array] The given array now missing all targeted values.
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "delete_regex(): Wrong number of arguments given #{arguments.size} for 2") unless arguments.size == 2
 
     collection = arguments[0].dup
diff --git a/lib/puppet/parser/functions/delete_undef_values.rb b/lib/puppet/parser/functions/delete_undef_values.rb
index b00f5e4d4..e537e9ae8 100644
--- a/lib/puppet/parser/functions/delete_undef_values.rb
+++ b/lib/puppet/parser/functions/delete_undef_values.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # delete_undef_values.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:delete_undef_values, :type => :rvalue, :doc => <<-DOC
+  newfunction(:delete_undef_values, type: :rvalue, doc: <<-DOC
     @summary
       Returns a copy of input hash or array with all undefs deleted.
 
@@ -23,8 +25,7 @@ module Puppet::Parser::Functions
 
     @return [Array] The given array now issing of undefined values.
     DOC
-             ) do |args|
-
+  ) do |args|
     raise(Puppet::ParseError, "delete_undef_values(): Wrong number of arguments given (#{args.size})") if args.empty?
 
     unless args[0].is_a?(Array) || args[0].is_a?(Hash)
diff --git a/lib/puppet/parser/functions/delete_values.rb b/lib/puppet/parser/functions/delete_values.rb
index f1625228a..3aa8be724 100644
--- a/lib/puppet/parser/functions/delete_values.rb
+++ b/lib/puppet/parser/functions/delete_values.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # delete_values.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:delete_values, :type => :rvalue, :doc => <<-DOC
+  newfunction(:delete_values, type: :rvalue, doc: <<-DOC
     @summary
       Deletes all instances of a given value from a hash.
 
@@ -19,8 +21,7 @@ module Puppet::Parser::Functions
 
     @return [Hash] The given hash now missing all instances of the targeted value
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "delete_values(): Wrong number of arguments given (#{arguments.size} of 2)") if arguments.size != 2
 
     hash, item = arguments
diff --git a/lib/puppet/parser/functions/deprecation.rb b/lib/puppet/parser/functions/deprecation.rb
index 2a39cc379..1633723a5 100644
--- a/lib/puppet/parser/functions/deprecation.rb
+++ b/lib/puppet/parser/functions/deprecation.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # deprecation.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:deprecation, :doc => <<-DOC
+  newfunction(:deprecation, doc: <<-DOC
   @summary
     Function to print deprecation warnings (this is the 3.X version of it).
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
   @return [String]
     return deprecation warnings
 DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "deprecation: Wrong number of arguments given (#{arguments.size} for 2)") unless arguments.size == 2
 
     key = arguments[0]
diff --git a/lib/puppet/parser/functions/difference.rb b/lib/puppet/parser/functions/difference.rb
index 49e867371..3c4461028 100644
--- a/lib/puppet/parser/functions/difference.rb
+++ b/lib/puppet/parser/functions/difference.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # difference.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:difference, :type => :rvalue, :doc => <<-DOC
+  newfunction(:difference, type: :rvalue, doc: <<-DOC
     @summary
       This function returns the difference between two arrays.
 
@@ -23,8 +25,7 @@ module Puppet::Parser::Functions
       The difference between the two given arrays
 
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     # Two arguments are required
     raise(Puppet::ParseError, "difference(): Wrong number of arguments given (#{arguments.size} for 2)") if arguments.size != 2
 
diff --git a/lib/puppet/parser/functions/dig.rb b/lib/puppet/parser/functions/dig.rb
index b6addb40f..81b58e1b9 100644
--- a/lib/puppet/parser/functions/dig.rb
+++ b/lib/puppet/parser/functions/dig.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # dig.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:dig, :type => :rvalue, :doc => <<-DOC
+  newfunction(:dig, type: :rvalue, doc: <<-DOC
     @summary
       **DEPRECATED** Retrieves a value within multiple layers of hashes and arrays via an
       array of keys containing a path.
@@ -47,7 +49,7 @@ module Puppet::Parser::Functions
       [`dig`](https://puppet.com/docs/puppet/latest/function.html#dig) function as of
       Puppet 4.5.0. Use [`dig44()`](#dig44) for backwards compatibility or use the new version.
     DOC
-             ) do |arguments|
+  ) do |arguments|
     warning('dig() DEPRECATED: This function has been replaced in Puppet 4.5.0, please use dig44() for backwards compatibility or use the new version.')
     unless Puppet::Parser::Functions.autoloader.loaded?(:dig44)
       Puppet::Parser::Functions.autoloader.load(:dig44)
diff --git a/lib/puppet/parser/functions/dig44.rb b/lib/puppet/parser/functions/dig44.rb
index ff1d9df65..7b58c226f 100644
--- a/lib/puppet/parser/functions/dig44.rb
+++ b/lib/puppet/parser/functions/dig44.rb
@@ -1,12 +1,14 @@
+# frozen_string_literal: true
+
 #
 # dig44.rb
 #
 module Puppet::Parser::Functions
   newfunction(
     :dig44,
-    :type => :rvalue,
-    :arity => -2,
-    :doc => <<-DOC
+    type: :rvalue,
+    arity: -2,
+    doc: <<-DOC,
     @summary
       **DEPRECATED**: Looks up into a complex structure of arrays and hashes and returns a value
       or the default value if nothing was found.
diff --git a/lib/puppet/parser/functions/dirname.rb b/lib/puppet/parser/functions/dirname.rb
index ae579e20e..4a07a299d 100644
--- a/lib/puppet/parser/functions/dirname.rb
+++ b/lib/puppet/parser/functions/dirname.rb
@@ -1,15 +1,16 @@
+# frozen_string_literal: true
+
 #
 # dirname.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:dirname, :type => :rvalue, :doc => <<-DOC
+  newfunction(:dirname, type: :rvalue, doc: <<-DOC
     @summary
       Returns the dirname of a path.
 
     @return [String] the given path's dirname
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     if arguments.empty?
       raise(Puppet::ParseError, 'dirname(): No arguments given')
     end
diff --git a/lib/puppet/parser/functions/dos2unix.rb b/lib/puppet/parser/functions/dos2unix.rb
index e741aa8dd..0e2b2b6a8 100644
--- a/lib/puppet/parser/functions/dos2unix.rb
+++ b/lib/puppet/parser/functions/dos2unix.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 # Custom Puppet function to convert dos to unix format
 module Puppet::Parser::Functions
-  newfunction(:dos2unix, :type => :rvalue, :arity => 1, :doc => <<-DOC
+  newfunction(:dos2unix, type: :rvalue, arity: 1, doc: <<-DOC
     @summary
       Returns the Unix version of the given string.
 
@@ -8,8 +10,7 @@ module Puppet::Parser::Functions
 
     @return The retrieved version
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     unless arguments[0].is_a?(String)
       raise(Puppet::ParseError, 'dos2unix(): Requires string as argument')
     end
diff --git a/lib/puppet/parser/functions/downcase.rb b/lib/puppet/parser/functions/downcase.rb
index a0717ff61..32e338c8a 100644
--- a/lib/puppet/parser/functions/downcase.rb
+++ b/lib/puppet/parser/functions/downcase.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 #
 #  downcase.rb
 #  Please note: This function is an implementation of a Ruby class and as such may not be entirely UTF8 compatible. To ensure compatibility please use this function with Ruby 2.4.0 or greater - https://bugs.ruby-lang.org/issues/10085.
 #
 module Puppet::Parser::Functions
-  newfunction(:downcase, :type => :rvalue, :doc => <<-DOC
+  newfunction(:downcase, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Converts the case of a string or all strings in an array to lower case.
 
@@ -16,8 +18,7 @@ module Puppet::Parser::Functions
     @return [String] The converted String, if it was a String that was given
     @return [Array[String]] The converted Array, if it was a Array that was given
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "downcase(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     value = arguments[0]
diff --git a/lib/puppet/parser/functions/empty.rb b/lib/puppet/parser/functions/empty.rb
index 907ecb196..ee1dabca2 100644
--- a/lib/puppet/parser/functions/empty.rb
+++ b/lib/puppet/parser/functions/empty.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # empty.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:empty, :type => :rvalue, :doc => <<-DOC
+  newfunction(:empty, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns true if the variable is empty.
 
@@ -13,8 +15,7 @@ module Puppet::Parser::Functions
     > *Note*: **Deprecated** from Puppet 5.5.0, the built-in
     [`empty`](https://puppet.com/docs/puppet/6.4/function.html#empty) function will be used instead.
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "empty(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
     value = arguments[0]
 
diff --git a/lib/puppet/parser/functions/enclose_ipv6.rb b/lib/puppet/parser/functions/enclose_ipv6.rb
index b55f76b30..cfa174b1c 100644
--- a/lib/puppet/parser/functions/enclose_ipv6.rb
+++ b/lib/puppet/parser/functions/enclose_ipv6.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # enclose_ipv6.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:enclose_ipv6, :type => :rvalue, :doc => <<-DOC
+  newfunction(:enclose_ipv6, type: :rvalue, doc: <<-DOC
     @summary
       Takes an array of ip addresses and encloses the ipv6 addresses with square brackets.
 
@@ -10,8 +12,7 @@ module Puppet::Parser::Functions
       encloses the ipv6 addresses with square brackets.
 
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     require 'ipaddr'
 
     rescuable_exceptions = [ArgumentError]
diff --git a/lib/puppet/parser/functions/ensure_packages.rb b/lib/puppet/parser/functions/ensure_packages.rb
index f255c036e..3cd2b2014 100644
--- a/lib/puppet/parser/functions/ensure_packages.rb
+++ b/lib/puppet/parser/functions/ensure_packages.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # ensure_packages.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:ensure_packages, :type => :statement, :doc => <<-DOC
+  newfunction(:ensure_packages, type: :statement, doc: <<-DOC
     @summary
       Takes a list of packages and only installs them if they don't already exist.
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
     @return
       install the passed packages
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "ensure_packages(): Wrong number of arguments given (#{arguments.size} for 1 or 2)") if arguments.size > 2 || arguments.empty?
     raise(Puppet::ParseError, 'ensure_packages(): Requires second argument to be a Hash') if arguments.size == 2 && !arguments[1].is_a?(Hash)
 
diff --git a/lib/puppet/parser/functions/ensure_resource.rb b/lib/puppet/parser/functions/ensure_resource.rb
index e4fa771f2..e606360c8 100644
--- a/lib/puppet/parser/functions/ensure_resource.rb
+++ b/lib/puppet/parser/functions/ensure_resource.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 # Test whether a given class or definition is defined
 require 'puppet/parser/functions'
 
 Puppet::Parser::Functions.newfunction(:ensure_resource,
-                                      :type => :statement,
-                                      :doc => <<-DOC
+                                      type: :statement,
+                                      doc: <<-DOC,
   @summary
     Takes a resource type, title, and a list of attributes that describe a
     resource.
diff --git a/lib/puppet/parser/functions/ensure_resources.rb b/lib/puppet/parser/functions/ensure_resources.rb
index c7032caa2..ed82b2338 100644
--- a/lib/puppet/parser/functions/ensure_resources.rb
+++ b/lib/puppet/parser/functions/ensure_resources.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 require 'puppet/parser/functions'
 
 Puppet::Parser::Functions.newfunction(:ensure_resources,
-                                      :type => :statement,
-                                      :doc => <<-DOC
+                                      type: :statement,
+                                      doc: <<-DOC,
   @summary
     Takes a resource type, title (only hash), and a list of attributes that describe a
     resource.
diff --git a/lib/puppet/parser/functions/flatten.rb b/lib/puppet/parser/functions/flatten.rb
index 7344201fd..a544d33fd 100644
--- a/lib/puppet/parser/functions/flatten.rb
+++ b/lib/puppet/parser/functions/flatten.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # flatten.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:flatten, :type => :rvalue, :doc => <<-DOC
+  newfunction(:flatten, type: :rvalue, doc: <<-DOC
     @summary
       This function flattens any deeply nested arrays and returns a single flat array
       as a result.
@@ -17,8 +19,7 @@ module Puppet::Parser::Functions
     > **Note:** **Deprecated** from Puppet 5.5.0, this function has been replaced with a
     built-in [`flatten`](https://puppet.com/docs/puppet/latest/function.html#flatten) function.
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "flatten(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.size != 1
 
     array = arguments[0]
diff --git a/lib/puppet/parser/functions/floor.rb b/lib/puppet/parser/functions/floor.rb
index 3a6f3c805..1d59963ad 100644
--- a/lib/puppet/parser/functions/floor.rb
+++ b/lib/puppet/parser/functions/floor.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # floor.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:floor, :type => :rvalue, :doc => <<-DOC
+  newfunction(:floor, type: :rvalue, doc: <<-DOC
     @summary
       Returns the largest integer less or equal to the argument.
 
@@ -13,8 +15,7 @@ module Puppet::Parser::Functions
     > **Note:** **Deprecated** from Puppet 6.0.0, this function has been replaced with
     a built-in [`floor`](https://puppet.com/docs/puppet/latest/function.html#floor) function.
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "floor(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.size != 1
 
     begin
diff --git a/lib/puppet/parser/functions/fqdn_rand_string.rb b/lib/puppet/parser/functions/fqdn_rand_string.rb
index 9bfba73d6..e9636c24f 100644
--- a/lib/puppet/parser/functions/fqdn_rand_string.rb
+++ b/lib/puppet/parser/functions/fqdn_rand_string.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 Puppet::Parser::Functions.newfunction(
   :fqdn_rand_string,
-  :arity => -2,
-  :type => :rvalue,
-  :doc => <<-DOC
+  arity: -2,
+  type: :rvalue,
+  doc: <<-DOC,
   @summary
     Generates a random alphanumeric string. Combining the `$fqdn` fact and an
     optional seed for repeatable randomness.
@@ -36,7 +38,7 @@
 
   rand_string = ''
   for current in 1..length # rubocop:disable Style/For : An each loop would not work correctly in this circumstance
-    rand_string << charset[function_fqdn_rand([charset.size, (args + [current.to_s]).join(':')]).to_i]
+    rand_string += charset[function_fqdn_rand([charset.size, (args + [current.to_s]).join(':')]).to_i]
   end
 
   rand_string
diff --git a/lib/puppet/parser/functions/fqdn_rotate.rb b/lib/puppet/parser/functions/fqdn_rotate.rb
index c86ea6829..603c57ca6 100644
--- a/lib/puppet/parser/functions/fqdn_rotate.rb
+++ b/lib/puppet/parser/functions/fqdn_rotate.rb
@@ -1,10 +1,12 @@
+# frozen_string_literal: true
+
 #
 # fqdn_rotate.rb
 #
 Puppet::Parser::Functions.newfunction(
   :fqdn_rotate,
-  :type => :rvalue,
-  :doc => <<-DOC
+  type: :rvalue,
+  doc: <<-DOC,
   @summary
     Rotates an array or string a random number of times, combining the `$fqdn` fact
     and an optional seed for repeatable randomness.
@@ -18,7 +20,6 @@
     fqdn_rotate([1, 2, 3], 'custom seed')
   DOC
 ) do |args|
-
   raise(Puppet::ParseError, "fqdn_rotate(): Wrong number of arguments given (#{args.size} for 1)") if args.empty?
 
   value = args.shift
diff --git a/lib/puppet/parser/functions/fqdn_uuid.rb b/lib/puppet/parser/functions/fqdn_uuid.rb
index e325fe732..b3141c8f5 100644
--- a/lib/puppet/parser/functions/fqdn_uuid.rb
+++ b/lib/puppet/parser/functions/fqdn_uuid.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 require 'digest/sha1'
 #
 # fqdn_uuid.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:fqdn_uuid, :type => :rvalue, :doc => <<-DOC) do |args|
+  newfunction(:fqdn_uuid, type: :rvalue, doc: <<-DOC) do |args|
     @summary
       Returns a [RFC 4122](https://tools.ietf.org/html/rfc4122) valid version 5 UUID based
       on an FQDN string under the DNS namespace
diff --git a/lib/puppet/parser/functions/get_module_path.rb b/lib/puppet/parser/functions/get_module_path.rb
index ac787c652..3595d5377 100644
--- a/lib/puppet/parser/functions/get_module_path.rb
+++ b/lib/puppet/parser/functions/get_module_path.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # get_module_path.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:get_module_path, :type => :rvalue, :doc => <<-DOC
+  newfunction(:get_module_path, type: :rvalue, doc: <<-DOC
     @summary
       Returns the absolute path of the specified module for the current
       environment.
@@ -20,7 +22,7 @@ module Puppet::Parser::Functions
       function in Puppet does the same thing and will return the path to the first found module
       if given multiple values or an array.
   DOC
-             ) do |args|
+  ) do |args|
     raise(Puppet::ParseError, 'get_module_path(): Wrong number of arguments, expects one') unless args.size == 1
     module_path = Puppet::Module.find(args[0], compiler.environment.to_s)
     raise(Puppet::ParseError, "Could not find module #{args[0]} in environment #{compiler.environment}") unless module_path
diff --git a/lib/puppet/parser/functions/getparam.rb b/lib/puppet/parser/functions/getparam.rb
index 59ef7691a..18b7b51e1 100644
--- a/lib/puppet/parser/functions/getparam.rb
+++ b/lib/puppet/parser/functions/getparam.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 # Test whether a given class or definition is defined
 require 'puppet/parser/functions'
 
 Puppet::Parser::Functions.newfunction(:getparam,
-                                      :type => :rvalue,
-                                      :doc => <<-'DOC'
+                                      type: :rvalue,
+                                      doc: <<-'DOC',
     @summary
       Returns the value of a resource's parameter.
 
@@ -46,7 +48,7 @@
                                      ) do |vals|
   reference, param = vals
   raise(ArgumentError, 'Must specify a reference') unless reference
-  raise(ArgumentError, 'Must specify name of a parameter') unless param && param.instance_of?(String)
+  raise(ArgumentError, 'Must specify name of a parameter') unless param&.instance_of?(String)
 
   return '' if param.empty?
 
diff --git a/lib/puppet/parser/functions/getvar.rb b/lib/puppet/parser/functions/getvar.rb
index 41d3c4f41..4ecd8324e 100644
--- a/lib/puppet/parser/functions/getvar.rb
+++ b/lib/puppet/parser/functions/getvar.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # getvar.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:getvar, :type => :rvalue, :doc => <<-'DOC') do |args|
+  newfunction(:getvar, type: :rvalue, doc: <<-'DOC') do |args|
     @summary
       Lookup a variable in a given namespace.
 
@@ -34,7 +36,7 @@ module Puppet::Parser::Functions
 
       # avoid relying on inconsistent behaviour around ruby return values from catch
       result
-    rescue Puppet::ParseError # rubocop:disable Lint/HandleExceptions : Eat the exception if strict_variables = true is set
+    rescue Puppet::ParseError
     end
   end
 end
diff --git a/lib/puppet/parser/functions/glob.rb b/lib/puppet/parser/functions/glob.rb
index 5475b74b3..be4e0d2cc 100644
--- a/lib/puppet/parser/functions/glob.rb
+++ b/lib/puppet/parser/functions/glob.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 #  glob.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:glob, :type => :rvalue, :doc => <<-DOC
+  newfunction(:glob, type: :rvalue, doc: <<-DOC
     @summary
       Uses same patterns as Dir#glob.
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
     @example Example Usage:
       $confs = glob(['/etc/**/*.conf', '/opt/**/*.conf'])
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     unless arguments.size == 1
       raise(Puppet::ParseError, 'glob(): Wrong number of arguments given ' \
         "(#{arguments.size} for 1)")
diff --git a/lib/puppet/parser/functions/grep.rb b/lib/puppet/parser/functions/grep.rb
index 2d274838e..6ef3ee457 100644
--- a/lib/puppet/parser/functions/grep.rb
+++ b/lib/puppet/parser/functions/grep.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # grep.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:grep, :type => :rvalue, :doc => <<-DOC
+  newfunction(:grep, type: :rvalue, doc: <<-DOC
     @summary
       This function searches through an array and returns any elements that match
       the provided regular expression.
@@ -17,8 +19,7 @@ module Puppet::Parser::Functions
     the "same" - as any logic can be used to filter, as opposed to just regular expressions:
     ```['aaa', 'bbb', 'ccc', 'aaaddd']. filter |$x| { $x =~ 'aaa' }```
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     if arguments.size != 2
       raise(Puppet::ParseError, "grep(): Wrong number of arguments given #{arguments.size} for 2")
     end
diff --git a/lib/puppet/parser/functions/has_interface_with.rb b/lib/puppet/parser/functions/has_interface_with.rb
index fb9af42eb..0404217b2 100644
--- a/lib/puppet/parser/functions/has_interface_with.rb
+++ b/lib/puppet/parser/functions/has_interface_with.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # has_interface_with
 #
 module Puppet::Parser::Functions
-  newfunction(:has_interface_with, :type => :rvalue, :doc => <<-DOC
+  newfunction(:has_interface_with, type: :rvalue, doc: <<-DOC
     @summary
       Returns boolean based on kind and value.
 
@@ -18,8 +20,7 @@ module Puppet::Parser::Functions
     @example If no "kind" is given, then the presence of the interface is checked:
       has_interface_with("lo") # Returns `true`
     DOC
-             ) do |args|
-
+  ) do |args|
     raise(Puppet::ParseError, "has_interface_with(): Wrong number of arguments given (#{args.size} for 1 or 2)") if args.empty? || args.size > 2
 
     interfaces = lookupvar('interfaces')
@@ -42,7 +43,7 @@ module Puppet::Parser::Functions
       catch :undefined_variable do
         factval = lookupvar(kind)
       end
-    rescue Puppet::ParseError # rubocop:disable Lint/HandleExceptions : Eat the exception if strict_variables = true is set
+    rescue Puppet::ParseError
     end
     if factval == value
       return true
@@ -58,7 +59,7 @@ module Puppet::Parser::Functions
         catch :undefined_variable do
           factval = lookupvar("#{kind}_#{iface}")
         end
-      rescue Puppet::ParseError # rubocop:disable Lint/HandleExceptions : Eat the exception if strict_variables = true is set
+      rescue Puppet::ParseError
       end
       if value == factval
         result = true
diff --git a/lib/puppet/parser/functions/has_ip_address.rb b/lib/puppet/parser/functions/has_ip_address.rb
index 4004681ca..0cea4a7da 100644
--- a/lib/puppet/parser/functions/has_ip_address.rb
+++ b/lib/puppet/parser/functions/has_ip_address.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # has_ip_address
 #
 module Puppet::Parser::Functions
-  newfunction(:has_ip_address, :type => :rvalue, :doc => <<-DOC
+  newfunction(:has_ip_address, type: :rvalue, doc: <<-DOC
     @summary
       Returns true if the client has the requested IP address on some interface.
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
     This function iterates through the 'interfaces' fact and checks the
     'ipaddress_IFACE' facts, performing a simple string comparison.
     DOC
-             ) do |args|
-
+  ) do |args|
     raise(Puppet::ParseError, "has_ip_address(): Wrong number of arguments given (#{args.size} for 1)") if args.size != 1
 
     Puppet::Parser::Functions.autoloader.load(:has_interface_with) \
diff --git a/lib/puppet/parser/functions/has_ip_network.rb b/lib/puppet/parser/functions/has_ip_network.rb
index b4a3bad25..7406ed522 100644
--- a/lib/puppet/parser/functions/has_ip_network.rb
+++ b/lib/puppet/parser/functions/has_ip_network.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # has_ip_network
 #
 module Puppet::Parser::Functions
-  newfunction(:has_ip_network, :type => :rvalue, :doc => <<-DOC
+  newfunction(:has_ip_network, type: :rvalue, doc: <<-DOC
     @summary
       Returns true if the client has an IP address within the requested network.
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
     This function iterates through the 'interfaces' fact and checks the
     'network_IFACE' facts, performing a simple string comparision.
     DOC
-             ) do |args|
-
+  ) do |args|
     raise(Puppet::ParseError, "has_ip_network(): Wrong number of arguments given (#{args.size} for 1)") if args.size != 1
 
     Puppet::Parser::Functions.autoloader.load(:has_interface_with) \
diff --git a/lib/puppet/parser/functions/has_key.rb b/lib/puppet/parser/functions/has_key.rb
index 50dde53e3..334b849f0 100644
--- a/lib/puppet/parser/functions/has_key.rb
+++ b/lib/puppet/parser/functions/has_key.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # has_key.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:has_key, :type => :rvalue, :doc => <<-'DOC') do |args|
+  newfunction(:has_key, type: :rvalue, doc: <<-'DOC') do |args|
     @summary
       **Deprecated:** Determine if a hash has a certain key value.
 
diff --git a/lib/puppet/parser/functions/hash.rb b/lib/puppet/parser/functions/hash.rb
index 484cb59bf..029089ec4 100644
--- a/lib/puppet/parser/functions/hash.rb
+++ b/lib/puppet/parser/functions/hash.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # hash.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:hash, :type => :rvalue, :doc => <<-DOC
+  newfunction(:hash, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** This function converts an array into a hash.
 
@@ -20,8 +22,7 @@ module Puppet::Parser::Functions
       Hash([['a',1],['b',2],['c',3]])
       ```
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "hash(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     array = arguments[0]
diff --git a/lib/puppet/parser/functions/intersection.rb b/lib/puppet/parser/functions/intersection.rb
index 6d9d104eb..ead75807a 100644
--- a/lib/puppet/parser/functions/intersection.rb
+++ b/lib/puppet/parser/functions/intersection.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # intersection.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:intersection, :type => :rvalue, :doc => <<-DOC
+  newfunction(:intersection, type: :rvalue, doc: <<-DOC
     @summary
       This function returns an array of the intersection of two.
 
@@ -13,8 +15,7 @@ module Puppet::Parser::Functions
       intersection(["a","b","c"],["b","c","d"])  # returns ["b","c"]
       intersection(["a","b","c"],[1,2,3,4])      # returns [] (true, when evaluated as a Boolean)
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     # Two arguments are required
     raise(Puppet::ParseError, "intersection(): Wrong number of arguments given (#{arguments.size} for 2)") if arguments.size != 2
 
diff --git a/lib/puppet/parser/functions/is_absolute_path.rb b/lib/puppet/parser/functions/is_absolute_path.rb
index f30991347..c464afa46 100644
--- a/lib/puppet/parser/functions/is_absolute_path.rb
+++ b/lib/puppet/parser/functions/is_absolute_path.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # is_absolute_path.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:is_absolute_path, :type => :rvalue, :arity => 1, :doc => <<-'DOC') do |args|
+  newfunction(:is_absolute_path, type: :rvalue, arity: 1, doc: <<-'DOC') do |args|
     @summary
       **Deprecated:** Returns boolean true if the string represents an absolute path in the filesystem.
 
@@ -49,8 +51,8 @@ module Puppet::Parser::Functions
       slash = '[\\\\/]'
       name = '[^\\\\/]+'
       regexes = {
-        :windows => %r{^(([A-Z]:#{slash})|(#{slash}#{slash}#{name}#{slash}#{name})|(#{slash}#{slash}\?#{slash}#{name}))}i,
-        :posix => %r{^/},
+        windows: %r{^(([A-Z]:#{slash})|(#{slash}#{slash}#{name}#{slash}#{name})|(#{slash}#{slash}\?#{slash}#{name}))}i,
+        posix: %r{^/},
       }
       value = !!(path =~ regexes[:posix]) || !!(path =~ regexes[:windows]) # rubocop:disable Style/DoubleNegation : No alternative known
     end
diff --git a/lib/puppet/parser/functions/is_array.rb b/lib/puppet/parser/functions/is_array.rb
index 1df57b2fa..e4e7b8102 100644
--- a/lib/puppet/parser/functions/is_array.rb
+++ b/lib/puppet/parser/functions/is_array.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # is_array.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:is_array, :type => :rvalue, :doc => <<-DOC
+  newfunction(:is_array, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns true if the variable passed to this function is an array.
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
     > **Note:* **Deprecated** Will be removed in a future version of stdlib. See
     [`validate_legacy`](#validate_legacy).
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     function_deprecation([:is_array, 'This method is deprecated, please use the stdlib validate_legacy function,
                            with Stdlib::Compat::Array. There is further documentation for validate_legacy function in the README.'])
 
diff --git a/lib/puppet/parser/functions/is_bool.rb b/lib/puppet/parser/functions/is_bool.rb
index cf5cb32c0..96cb2172e 100644
--- a/lib/puppet/parser/functions/is_bool.rb
+++ b/lib/puppet/parser/functions/is_bool.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # is_bool.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:is_bool, :type => :rvalue, :doc => <<-DOC
+  newfunction(:is_bool, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns true if the variable passed to this function is a boolean.
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
     > **Note:* **Deprecated** Will be removed in a future version of stdlib. See
     [`validate_legacy`](#validate_legacy).
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     function_deprecation([:is_bool, 'This method is deprecated, please use the stdlib validate_legacy function,
                           with Stdlib::Compat::Bool. There is further documentation for validate_legacy function in the README.'])
 
diff --git a/lib/puppet/parser/functions/is_domain_name.rb b/lib/puppet/parser/functions/is_domain_name.rb
index 390a86894..32b94816c 100644
--- a/lib/puppet/parser/functions/is_domain_name.rb
+++ b/lib/puppet/parser/functions/is_domain_name.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # is_domain_name.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:is_domain_name, :type => :rvalue, :doc => <<-DOC
+  newfunction(:is_domain_name, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns true if the string passed to this function is
       a syntactically correct domain name.
@@ -13,8 +15,7 @@ module Puppet::Parser::Functions
     > **Note:* **Deprecated** Will be removed in a future version of stdlib. See
     [`validate_legacy`](#validate_legacy).
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     if arguments.size != 1
       raise(Puppet::ParseError, "is_domain_name(): Wrong number of arguments given #{arguments.size} for 1")
     end
@@ -50,7 +51,7 @@ module Puppet::Parser::Functions
       break if label.length > label_max_length
       break if label[-1..-1] == '-'
       break if label[0..0] == '-'
-      break unless %r{^[a-z\d-]+$}i =~ label
+      break unless %r{^[a-z\d-]+$}i.match?(label)
     end
     return vlabels == labels
   end
diff --git a/lib/puppet/parser/functions/is_email_address.rb b/lib/puppet/parser/functions/is_email_address.rb
index 1c41b86be..5a9594c04 100644
--- a/lib/puppet/parser/functions/is_email_address.rb
+++ b/lib/puppet/parser/functions/is_email_address.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # is_email_address.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:is_email_address, :type => :rvalue, :doc => <<-DOC
+  newfunction(:is_email_address, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns true if the string passed to this function is a valid email address.
 
@@ -12,14 +14,14 @@ module Puppet::Parser::Functions
     > **Note:* **Deprecated** Will be removed in a future version of stdlib. See
     [`validate_legacy`](#validate_legacy).
     DOC
-             ) do |arguments|
+  ) do |arguments|
     if arguments.size != 1
       raise(Puppet::ParseError, "is_email_address(): Wrong number of arguments given #{arguments.size} for 1")
     end
 
     # Taken from http://emailregex.com/ (simpler regex)
     valid_email_regex = %r{\A([\w+\-].?)+@[a-z\d\-]+(\.[a-z]+)*\.[a-z]+\z}
-    return (arguments[0] =~ valid_email_regex) == 0 # rubocop:disable Style/NumericPredicate : Changing to '.zero?' breaks the code
+    return (arguments[0] =~ valid_email_regex) == 0
   end
 end
 
diff --git a/lib/puppet/parser/functions/is_float.rb b/lib/puppet/parser/functions/is_float.rb
index 583793d01..c44746b5e 100644
--- a/lib/puppet/parser/functions/is_float.rb
+++ b/lib/puppet/parser/functions/is_float.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # is_float.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:is_float, :type => :rvalue, :doc => <<-DOC
+  newfunction(:is_float, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns true if the variable passed to this function is a float.
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
     > **Note:* **Deprecated** Will be removed in a future version of stdlib. See
     [`validate_legacy`](#validate_legacy).
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     function_deprecation([:is_float, 'This method is deprecated, please use the stdlib validate_legacy function,
                           with Stdlib::Compat::Float. There is further documentation for validate_legacy function in the README.'])
 
diff --git a/lib/puppet/parser/functions/is_function_available.rb b/lib/puppet/parser/functions/is_function_available.rb
index e931225c4..d6f666fb4 100644
--- a/lib/puppet/parser/functions/is_function_available.rb
+++ b/lib/puppet/parser/functions/is_function_available.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # is_function_available.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:is_function_available, :type => :rvalue, :doc => <<-DOC
+  newfunction(:is_function_available, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Determines whether the Puppet runtime has access to a function by that name.
 
@@ -14,8 +16,7 @@ module Puppet::Parser::Functions
     > **Note:* **Deprecated** Will be removed in a future version of stdlib. See
     [`validate_legacy`](#validate_legacy).
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     if arguments.size != 1
       raise(Puppet::ParseError, "is_function_available?(): Wrong number of arguments given #{arguments.size} for 1")
     end
diff --git a/lib/puppet/parser/functions/is_hash.rb b/lib/puppet/parser/functions/is_hash.rb
index f85b9eeaa..812ff8844 100644
--- a/lib/puppet/parser/functions/is_hash.rb
+++ b/lib/puppet/parser/functions/is_hash.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # is_hash.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:is_hash, :type => :rvalue, :doc => <<-DOC
+  newfunction(:is_hash, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns true if the variable passed to this function is a hash.
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
     > **Note:* **Deprecated** Will be removed in a future version of stdlib. See
     [`validate_legacy`](#validate_legacy).
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "is_hash(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.size != 1
 
     type = arguments[0]
diff --git a/lib/puppet/parser/functions/is_integer.rb b/lib/puppet/parser/functions/is_integer.rb
index a86b5cddc..cdb57719b 100644
--- a/lib/puppet/parser/functions/is_integer.rb
+++ b/lib/puppet/parser/functions/is_integer.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # is_integer.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:is_integer, :type => :rvalue, :doc => <<-DOC
+  newfunction(:is_integer, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns true if the variable passed to this function is an Integer or
       a decimal (base 10) integer in String form.
@@ -18,8 +20,7 @@ module Puppet::Parser::Functions
     > **Note:* **Deprecated** Will be removed in a future version of stdlib. See
     [`validate_legacy`](#validate_legacy).
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     function_deprecation([:is_integer, 'This method is deprecated, please use the stdlib validate_legacy function,
                             with Stdlib::Compat::Integer. There is further documentation for validate_legacy function in the README.'])
 
diff --git a/lib/puppet/parser/functions/is_ip_address.rb b/lib/puppet/parser/functions/is_ip_address.rb
index 61f84a13e..506244fc6 100644
--- a/lib/puppet/parser/functions/is_ip_address.rb
+++ b/lib/puppet/parser/functions/is_ip_address.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # is_ip_address.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:is_ip_address, :type => :rvalue, :doc => <<-DOC
+  newfunction(:is_ip_address, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns true if the string passed to this function is a valid IP address.
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
     > **Note:* **Deprecated** Will be removed in a future version of stdlib. See
     [`validate_legacy`](#validate_legacy).
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     require 'ipaddr'
 
     function_deprecation([:is_ip_address, 'This method is deprecated, please use the stdlib validate_legacy function,
diff --git a/lib/puppet/parser/functions/is_ipv4_address.rb b/lib/puppet/parser/functions/is_ipv4_address.rb
index 5064f4890..4610805f5 100644
--- a/lib/puppet/parser/functions/is_ipv4_address.rb
+++ b/lib/puppet/parser/functions/is_ipv4_address.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # is_ipv4_address.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:is_ipv4_address, :type => :rvalue, :doc => <<-DOC
+  newfunction(:is_ipv4_address, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns true if the string passed to this function is a valid IPv4 address.
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
     > **Note:* **Deprecated** Will be removed in a future version of stdlib. See
     [`validate_legacy`](#validate_legacy).
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     require 'ipaddr'
 
     function_deprecation([:is_ipv4_address, 'This method is deprecated, please use the stdlib validate_legacy function,
diff --git a/lib/puppet/parser/functions/is_ipv6_address.rb b/lib/puppet/parser/functions/is_ipv6_address.rb
index a4de14fd2..abb79df58 100644
--- a/lib/puppet/parser/functions/is_ipv6_address.rb
+++ b/lib/puppet/parser/functions/is_ipv6_address.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # is_ipv6_address.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:is_ipv6_address, :type => :rvalue, :doc => <<-DOC
+  newfunction(:is_ipv6_address, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns true if the string passed to this function is a valid IPv6 address.
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
     > **Note:* **Deprecated** Will be removed in a future version of stdlib. See
     [`validate_legacy`](#validate_legacy).
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     function_deprecation([:is_ipv6_address, 'This method is deprecated, please use the stdlib validate_legacy function,
                             with Stdlib::Compat::Ipv6. There is further documentation for validate_legacy function in the README.'])
 
diff --git a/lib/puppet/parser/functions/is_mac_address.rb b/lib/puppet/parser/functions/is_mac_address.rb
index ef1fc2059..67a269c4a 100644
--- a/lib/puppet/parser/functions/is_mac_address.rb
+++ b/lib/puppet/parser/functions/is_mac_address.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # is_mac_address.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:is_mac_address, :type => :rvalue, :doc => <<-DOC
+  newfunction(:is_mac_address, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns true if the string passed to this function is a valid mac address.
 
@@ -12,16 +14,15 @@ module Puppet::Parser::Functions
     > **Note:* **Deprecated** Will be removed in a future version of stdlib. See
     [`validate_legacy`](#validate_legacy).
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     if arguments.size != 1
       raise(Puppet::ParseError, "is_mac_address(): Wrong number of arguments given #{arguments.size} for 1")
     end
 
     mac = arguments[0]
 
-    return true if %r{^[a-f0-9]{1,2}(:[a-f0-9]{1,2}){5}$}i =~ mac
-    return true if %r{^[a-f0-9]{1,2}(:[a-f0-9]{1,2}){19}$}i =~ mac
+    return true if %r{^[a-f0-9]{1,2}(:[a-f0-9]{1,2}){5}$}i.match?(mac)
+    return true if %r{^[a-f0-9]{1,2}(:[a-f0-9]{1,2}){19}$}i.match?(mac)
     return false
   end
 end
diff --git a/lib/puppet/parser/functions/is_numeric.rb b/lib/puppet/parser/functions/is_numeric.rb
index 8b42119ae..a949557a9 100644
--- a/lib/puppet/parser/functions/is_numeric.rb
+++ b/lib/puppet/parser/functions/is_numeric.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # is_numeric.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:is_numeric, :type => :rvalue, :doc => <<-DOC
+  newfunction(:is_numeric, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns true if the given value is numeric.
 
@@ -22,8 +24,7 @@ module Puppet::Parser::Functions
     > **Note:* **Deprecated** Will be removed in a future version of stdlib. See
     [`validate_legacy`](#validate_legacy).
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     function_deprecation([:is_numeric, 'This method is deprecated, please use the stdlib validate_legacy function,
                           with Stdlib::Compat::Numeric. There is further documentation for validate_legacy function in the README.'])
 
diff --git a/lib/puppet/parser/functions/is_string.rb b/lib/puppet/parser/functions/is_string.rb
index 7410d32a4..5b4627a45 100644
--- a/lib/puppet/parser/functions/is_string.rb
+++ b/lib/puppet/parser/functions/is_string.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # is_string.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:is_string, :type => :rvalue, :doc => <<-DOC
+  newfunction(:is_string, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns true if the variable passed to this function is a string.
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
     > **Note:* **Deprecated** Will be removed in a future version of stdlib. See
     [`validate_legacy`](#validate_legacy).
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     function_deprecation([:is_string, 'This method is deprecated, please use the stdlib validate_legacy function,
                           with Stdlib::Compat::String. There is further documentation for validate_legacy function in the README.'])
 
diff --git a/lib/puppet/parser/functions/join.rb b/lib/puppet/parser/functions/join.rb
index 266ad65b9..f1e4bc141 100644
--- a/lib/puppet/parser/functions/join.rb
+++ b/lib/puppet/parser/functions/join.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # join.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:join, :type => :rvalue, :doc => <<-DOC
+  newfunction(:join, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** This function joins an array into a string using a separator.
 
@@ -15,8 +17,7 @@ module Puppet::Parser::Functions
     > **Note:** **Deprecated** from Puppet 5.4.0 this function has been replaced
     with a built-in [`join`](https://puppet.com/docs/puppet/latest/function.html#join) function.
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     # Technically we support two arguments but only first is mandatory ...
     raise(Puppet::ParseError, "join(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
diff --git a/lib/puppet/parser/functions/join_keys_to_values.rb b/lib/puppet/parser/functions/join_keys_to_values.rb
index 73d4a1ff0..3e709cb9c 100644
--- a/lib/puppet/parser/functions/join_keys_to_values.rb
+++ b/lib/puppet/parser/functions/join_keys_to_values.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # join_keys_to_values.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:join_keys_to_values, :type => :rvalue, :doc => <<-DOC
+  newfunction(:join_keys_to_values, type: :rvalue, doc: <<-DOC
     @summary
       This function joins each key of a hash to that key's corresponding value with a
       separator.
@@ -23,8 +25,7 @@ module Puppet::Parser::Functions
     formatting of values in the array) - see the `new` function for `String` and its formatting
     options for `Array` and `Hash`.
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     # Validate the number of arguments.
     if arguments.size != 2
       raise(Puppet::ParseError, "join_keys_to_values(): Takes exactly two arguments, but #{arguments.size} given.")
diff --git a/lib/puppet/parser/functions/keys.rb b/lib/puppet/parser/functions/keys.rb
index 80d080c65..10a85477d 100644
--- a/lib/puppet/parser/functions/keys.rb
+++ b/lib/puppet/parser/functions/keys.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # keys.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:keys, :type => :rvalue, :doc => <<-DOC
+  newfunction(:keys, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns the keys of a hash as an array.
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
     > **Note:** **Deprecated** from Puppet 5.5.0, the built-in [`keys`](https://puppet.com/docs/puppet/latest/function.html#keys)
     function will be used instead of this function.
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "keys(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     hash = arguments[0]
diff --git a/lib/puppet/parser/functions/load_module_metadata.rb b/lib/puppet/parser/functions/load_module_metadata.rb
index 79d98cdd8..b1fd196f1 100644
--- a/lib/puppet/parser/functions/load_module_metadata.rb
+++ b/lib/puppet/parser/functions/load_module_metadata.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # load_module_metadata.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:load_module_metadata, :type => :rvalue, :doc => <<-DOC
+  newfunction(:load_module_metadata, type: :rvalue, doc: <<-DOC
     @summary
       This function loads the metadata of a given module.
 
@@ -13,7 +15,7 @@ module Puppet::Parser::Functions
     @return
       The modules metadata
   DOC
-             ) do |args|
+  ) do |args|
     raise(Puppet::ParseError, 'load_module_metadata(): Wrong number of arguments, expects one or two') unless [1, 2].include?(args.size)
     mod = args[0]
     allow_empty_metadata = args[1]
diff --git a/lib/puppet/parser/functions/loadjson.rb b/lib/puppet/parser/functions/loadjson.rb
index 3c6087855..ef1fd87c3 100644
--- a/lib/puppet/parser/functions/loadjson.rb
+++ b/lib/puppet/parser/functions/loadjson.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 #
 # loadjson.rb
 #
 
 module Puppet::Parser::Functions
-  newfunction(:loadjson, :type => :rvalue, :arity => -2, :doc => <<-'DOC') do |args|
+  newfunction(:loadjson, type: :rvalue, arity: -2, doc: <<-'DOC') do |args|
     @summary
       Load a JSON file containing an array, string, or hash, and return the data
       in the corresponding native data type.
@@ -40,7 +42,7 @@ module Puppet::Parser::Functions
           url = args[0]
         end
         begin
-          contents = OpenURI.open_uri(url, :http_basic_authentication => [username, password])
+          contents = OpenURI.open_uri(url, http_basic_authentication: [username, password])
         rescue OpenURI::HTTPError => err
           res = err.io
           warning("Can't load '#{url}' HTTP Error Code: '#{res.status[0]}'")
diff --git a/lib/puppet/parser/functions/loadyaml.rb b/lib/puppet/parser/functions/loadyaml.rb
index f84f5300d..70f8e5fe3 100644
--- a/lib/puppet/parser/functions/loadyaml.rb
+++ b/lib/puppet/parser/functions/loadyaml.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # loadyaml.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:loadyaml, :type => :rvalue, :arity => -2, :doc => <<-'DOC') do |args|
+  newfunction(:loadyaml, type: :rvalue, arity: -2, doc: <<-'DOC') do |args|
     @summary
       Load a YAML file containing an array, string, or hash, and return the data
       in the corresponding native data type.
@@ -40,7 +42,7 @@ module Puppet::Parser::Functions
           url = args[0]
         end
         begin
-          contents = OpenURI.open_uri(url, :http_basic_authentication => [username, password])
+          contents = OpenURI.open_uri(url, http_basic_authentication: [username, password])
         rescue OpenURI::HTTPError => err
           res = err.io
           warning("Can't load '#{url}' HTTP Error Code: '#{res.status[0]}'")
diff --git a/lib/puppet/parser/functions/lstrip.rb b/lib/puppet/parser/functions/lstrip.rb
index 2fd31a226..16e0006dd 100644
--- a/lib/puppet/parser/functions/lstrip.rb
+++ b/lib/puppet/parser/functions/lstrip.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 #  lstrip.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:lstrip, :type => :rvalue, :doc => <<-DOC
+  newfunction(:lstrip, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Strips leading spaces to the left of a string.
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
     > **Note:** **Deprecated** from Puppet 6.0.0, this function has been replaced with a
     built-in [`max`](https://puppet.com/docs/puppet/latest/function.html#max) function.
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "lstrip(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     value = arguments[0]
diff --git a/lib/puppet/parser/functions/max.rb b/lib/puppet/parser/functions/max.rb
index 00a183aba..173dc0e9a 100644
--- a/lib/puppet/parser/functions/max.rb
+++ b/lib/puppet/parser/functions/max.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # max.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:max, :type => :rvalue, :doc => <<-DOC
+  newfunction(:max, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns the highest value of all arguments.
 
@@ -14,8 +16,7 @@ module Puppet::Parser::Functions
     > **Note:** **Deprecated** from Puppet 6.0.0, this function has been replaced with a
     built-in [`lstrip`](https://puppet.com/docs/puppet/latest/function.html#lstrip) function.
     DOC
-             ) do |args|
-
+  ) do |args|
     raise(Puppet::ParseError, 'max(): Wrong number of arguments need at least one') if args.empty?
 
     # Sometimes we get numbers as numerics and sometimes as strings.
diff --git a/lib/puppet/parser/functions/member.rb b/lib/puppet/parser/functions/member.rb
index 7efcb1f63..279548849 100644
--- a/lib/puppet/parser/functions/member.rb
+++ b/lib/puppet/parser/functions/member.rb
@@ -1,10 +1,12 @@
+# frozen_string_literal: true
+
 # TODO(Krzysztof Wilczynski): We need to add support for regular expression ...
 # TODO(Krzysztof Wilczynski): Support for strings and hashes too ...
 #
 # member.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:member, :type => :rvalue, :doc => <<-DOC
+  newfunction(:member, type: :rvalue, doc: <<-DOC
     @summary
       This function determines if a variable is a member of an array.
 
@@ -34,8 +36,7 @@ module Puppet::Parser::Functions
     hash is to use the built-in [`any`](https://puppet.com/docs/puppet/latest/function.html#any)
     and [`all`](https://puppet.com/docs/puppet/latest/function.html#all) functions.
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "member(): Wrong number of arguments given (#{arguments.size} for 2)") if arguments.size < 2
 
     array = arguments[0]
diff --git a/lib/puppet/parser/functions/merge.rb b/lib/puppet/parser/functions/merge.rb
index 9a0e8c1f0..522e48401 100644
--- a/lib/puppet/parser/functions/merge.rb
+++ b/lib/puppet/parser/functions/merge.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # merge.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:merge, :type => :rvalue, :doc => <<-'DOC') do |args|
+  newfunction(:merge, type: :rvalue, doc: <<-'DOC') do |args|
     @summary
       Merges two or more hashes together and returns the resulting hash.
 
diff --git a/lib/puppet/parser/functions/min.rb b/lib/puppet/parser/functions/min.rb
index c211a9e24..1734222d3 100644
--- a/lib/puppet/parser/functions/min.rb
+++ b/lib/puppet/parser/functions/min.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # min.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:min, :type => :rvalue, :doc => <<-DOC
+  newfunction(:min, type: :rvalue, doc: <<-DOC
     @summary
       **Deprecated:** Returns the lowest value of all arguments.
 
@@ -14,8 +16,7 @@ module Puppet::Parser::Functions
     > **Note:** **Deprecated** from Puppet 6.0.0, this function has been replaced with a
     built-in [`min`](https://puppet.com/docs/puppet/latest/function.html#min) function.
     DOC
-             ) do |args|
-
+  ) do |args|
     raise(Puppet::ParseError, 'min(): Wrong number of arguments need at least one') if args.empty?
 
     # Sometimes we get numbers as numerics and sometimes as strings.
diff --git a/lib/puppet/parser/functions/num2bool.rb b/lib/puppet/parser/functions/num2bool.rb
index 6e530db9a..c74ba0198 100644
--- a/lib/puppet/parser/functions/num2bool.rb
+++ b/lib/puppet/parser/functions/num2bool.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # num2bool.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:num2bool, :type => :rvalue, :doc => <<-DOC
+  newfunction(:num2bool, type: :rvalue, doc: <<-DOC
     @summary
       This function converts a number or a string representation of a number into a
       true boolean.
@@ -14,14 +16,13 @@ module Puppet::Parser::Functions
         Boolean(0) # false for any zero or negative number
         Boolean(1) # true for any positive number
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "num2bool(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.size != 1
 
     number = arguments[0]
 
     case number
-    when Numeric # rubocop:disable Lint/EmptyWhen : Required for the module to work
+    when Numeric
       # Yay, it's a number
     when String
       begin
diff --git a/lib/puppet/parser/functions/parsejson.rb b/lib/puppet/parser/functions/parsejson.rb
index 76b392fb1..bb1992e10 100644
--- a/lib/puppet/parser/functions/parsejson.rb
+++ b/lib/puppet/parser/functions/parsejson.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # parsejson.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:parsejson, :type => :rvalue, :doc => <<-DOC
+  newfunction(:parsejson, type: :rvalue, doc: <<-DOC
     @summary
       This function accepts JSON as a string and converts it into the correct
       Puppet structure.
@@ -14,7 +16,7 @@ module Puppet::Parser::Functions
       The optional second argument can be used to pass a default value that will
       be returned if the parsing of YAML string have failed.
   DOC
-             ) do |arguments|
+  ) do |arguments|
     raise ArgumentError, 'Wrong number of arguments. 1 or 2 arguments should be provided.' unless arguments.length >= 1
 
     begin
diff --git a/lib/puppet/parser/functions/parseyaml.rb b/lib/puppet/parser/functions/parseyaml.rb
index 5d081e6a6..f80c293d2 100644
--- a/lib/puppet/parser/functions/parseyaml.rb
+++ b/lib/puppet/parser/functions/parseyaml.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # parseyaml.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:parseyaml, :type => :rvalue, :doc => <<-DOC
+  newfunction(:parseyaml, type: :rvalue, doc: <<-DOC
     @summary
       This function accepts YAML as a string and converts it into the correct
       Puppet structure.
@@ -14,7 +16,7 @@ module Puppet::Parser::Functions
       The optional second argument can be used to pass a default value that will
       be returned if the parsing of YAML string have failed.
   DOC
-             ) do |arguments|
+  ) do |arguments|
     raise ArgumentError, 'Wrong number of arguments. 1 or 2 arguments should be provided.' unless arguments.length >= 1
     require 'yaml'
 
diff --git a/lib/puppet/parser/functions/pick.rb b/lib/puppet/parser/functions/pick.rb
index e31dc95de..34450c5fa 100644
--- a/lib/puppet/parser/functions/pick.rb
+++ b/lib/puppet/parser/functions/pick.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # pick.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:pick, :type => :rvalue, :doc => <<-EOS
+  newfunction(:pick, type: :rvalue, doc: <<-EOS
     @summary
       This function is similar to a coalesce function in SQL in that it will return
       the first value in a list of values that is not undefined or an empty string.
@@ -21,7 +23,7 @@ module Puppet::Parser::Functions
       Enterprise Console are brought into Puppet as top-scope variables), and,
       failing that, will use a default value of 1.449.
   EOS
-             ) do |args|
+  ) do |args|
     args = args.compact
     args.delete(:undef)
     args.delete(:undefined)
diff --git a/lib/puppet/parser/functions/pick_default.rb b/lib/puppet/parser/functions/pick_default.rb
index d94bb52aa..0915df144 100644
--- a/lib/puppet/parser/functions/pick_default.rb
+++ b/lib/puppet/parser/functions/pick_default.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # pick_default.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:pick_default, :type => :rvalue, :doc => <<-DOC
+  newfunction(:pick_default, type: :rvalue, doc: <<-DOC
     @summary
       This function will return the first value in a list of values that is not undefined or an empty string.
 
@@ -27,7 +29,7 @@ module Puppet::Parser::Functions
       all arguments are empty. This allows pick_default to use an empty value as
       default.
     DOC
-             ) do |args|
+  ) do |args|
     raise 'Must receive at least one argument.' if args.empty?
     default = args.last
     args = args[0..-2].compact
diff --git a/lib/puppet/parser/functions/prefix.rb b/lib/puppet/parser/functions/prefix.rb
index b5e96416d..04ed267d6 100644
--- a/lib/puppet/parser/functions/prefix.rb
+++ b/lib/puppet/parser/functions/prefix.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # prefix.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:prefix, :type => :rvalue, :doc => <<-DOC
+  newfunction(:prefix, type: :rvalue, doc: <<-DOC
     @summary
       This function applies a prefix to all elements in an array or a hash.
 
@@ -17,8 +19,7 @@ module Puppet::Parser::Functions
 
     @return [Hash] or [Array] The passed values now contains the passed prefix
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     # Technically we support two arguments but only first is mandatory ...
     raise(Puppet::ParseError, "prefix(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
diff --git a/lib/puppet/parser/functions/private.rb b/lib/puppet/parser/functions/private.rb
index 11a9451f9..037d2b2a8 100644
--- a/lib/puppet/parser/functions/private.rb
+++ b/lib/puppet/parser/functions/private.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # private.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:private, :doc => <<-'DOC'
+  newfunction(:private, doc: <<-'DOC'
    @summary
     **Deprecated:** Sets the current class or definition as private.
     Calling the class or definition from outside the current module will fail.
@@ -10,8 +12,8 @@ module Puppet::Parser::Functions
    @return
       Sets the current class or definition as private
   DOC
-             ) do |args|
-    warning("private() DEPRECATED: This function will cease to function on Puppet 4; please use assert_private() before upgrading to puppet 4 for backwards-compatibility, or migrate to the new parser's typing system.") # rubocop:disable Metrics/LineLength : Cannot shorten this line
+  ) do |args|
+    warning("private() DEPRECATED: This function will cease to function on Puppet 4; please use assert_private() before upgrading to puppet 4 for backwards-compatibility, or migrate to the new parser's typing system.") # rubocop:disable Layout/LineLength : Cannot shorten this line
     unless Puppet::Parser::Functions.autoloader.loaded?(:assert_private)
       Puppet::Parser::Functions.autoloader.load(:assert_private)
     end
diff --git a/lib/puppet/parser/functions/pry.rb b/lib/puppet/parser/functions/pry.rb
index 4191951d3..8fb7d2053 100644
--- a/lib/puppet/parser/functions/pry.rb
+++ b/lib/puppet/parser/functions/pry.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # pry.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:pry, :type => :statement, :doc => <<-DOC
+  newfunction(:pry, type: :statement, doc: <<-DOC
     @summary
       This function invokes a pry debugging session in the current scope object.
     This is useful for debugging manifest code at specific points during a compilation.
@@ -15,7 +17,7 @@ module Puppet::Parser::Functions
       `pry()`
 
     DOC
-             ) do |arguments|
+  ) do |arguments|
     begin
       require 'pry'
     rescue LoadError
diff --git a/lib/puppet/parser/functions/pw_hash.rb b/lib/puppet/parser/functions/pw_hash.rb
index 9b8e0d890..3351c9fe2 100644
--- a/lib/puppet/parser/functions/pw_hash.rb
+++ b/lib/puppet/parser/functions/pw_hash.rb
@@ -1,11 +1,13 @@
+# frozen_string_literal: true
+
 #  Please note: This function is an implementation of a Ruby class and as such may not be entirely UTF8 compatible.
 #  To ensure compatibility please use this function with Ruby 2.4.0 or greater - https://bugs.ruby-lang.org/issues/10085.
 #
 Puppet::Parser::Functions.newfunction(
   :pw_hash,
-  :type => :rvalue,
-  :arity => 3,
-  :doc => <<-DOC
+  type: :rvalue,
+  arity: 3,
+  doc: <<-DOC,
   @summary
     Hashes a password using the crypt function. Provides a hash usable
     on most POSIX systems.
@@ -50,7 +52,7 @@
   raise ArgumentError, "pw_hash(): #{args[1]} is not a valid hash type" if hash_type.nil?
   raise ArgumentError, 'pw_hash(): third argument must be a string' unless args[2].is_a? String
   raise ArgumentError, 'pw_hash(): third argument must not be empty' if args[2].empty?
-  raise ArgumentError, 'pw_hash(): characters in salt must be in the set [a-zA-Z0-9./]' unless args[2] =~ %r{\A[a-zA-Z0-9./]+\z}
+  raise ArgumentError, 'pw_hash(): characters in salt must be in the set [a-zA-Z0-9./]' unless %r{\A[a-zA-Z0-9./]+\z}.match?(args[2])
 
   password = args[0]
   return nil if password.nil? || password.empty?
@@ -58,7 +60,8 @@
   salt = "$#{hash_type}$#{args[2]}"
 
   # handle weak implementations of String#crypt
-  if 'test'.crypt('$1$1') != '$1$1$Bp8CU9Oujr9SSEw53WV6G.'
+  # dup the string to get rid of frozen status for testing
+  if ('test'.dup).crypt('$1$1') != '$1$1$Bp8CU9Oujr9SSEw53WV6G.'
     # JRuby < 1.7.17
     # MS Windows and other systems that don't support enhanced salts
     raise Puppet::ParseError, 'system does not support enhanced salts' unless RUBY_PLATFORM == 'java'
diff --git a/lib/puppet/parser/functions/range.rb b/lib/puppet/parser/functions/range.rb
index 1df7327a5..541094374 100644
--- a/lib/puppet/parser/functions/range.rb
+++ b/lib/puppet/parser/functions/range.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 #
 # range.rb
 #
 # TODO(Krzysztof Wilczynski): We probably need to approach numeric values differently ...
 module Puppet::Parser::Functions
-  newfunction(:range, :type => :rvalue, :doc => <<-DOC
+  newfunction(:range, type: :rvalue, doc: <<-DOC
     @summary
       When given range in the form of (start, stop) it will extrapolate a range as
       an array.
@@ -42,8 +44,7 @@ module Puppet::Parser::Functions
 
      Integer[0, 9].each |$x| { notice($x) } # notices 0, 1, 2, ... 9
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, 'range(): Wrong number of arguments given (0 for 1)') if arguments.empty?
 
     if arguments.size > 1
@@ -65,7 +66,7 @@ module Puppet::Parser::Functions
 
         type = m[2]
         step = 1
-      elsif value =~ %r{^.+$}
+      elsif %r{^.+$}.match?(value)
         raise(Puppet::ParseError, "range(): Unable to compute range from the value: #{value}")
       else
         raise(Puppet::ParseError, "range(): Unknown range format: #{value}")
@@ -73,7 +74,7 @@ module Puppet::Parser::Functions
     end
 
     # If we were given an integer, ensure we work with one
-    if start.to_s =~ %r{^\d+$}
+    if %r{^\d+$}.match?(start.to_s)
       start = start.to_i
       stop  = stop.to_i
     else
diff --git a/lib/puppet/parser/functions/regexpescape.rb b/lib/puppet/parser/functions/regexpescape.rb
index 43b729ea8..c5dcf8cfe 100644
--- a/lib/puppet/parser/functions/regexpescape.rb
+++ b/lib/puppet/parser/functions/regexpescape.rb
@@ -1,15 +1,17 @@
+# frozen_string_literal: true
+
 #
 #  regexpescape.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:regexpescape, :type => :rvalue, :doc => <<-DOC
+  newfunction(:regexpescape, type: :rvalue, doc: <<-DOC
     @summary
       Regexp escape a string or array of strings.
       Requires either a single string or an array as an input.
     @return [String]
       A string of characters with metacharacters converted to their escaped form.
     DOC
-  ) do |arguments| # rubocop:disable Layout/ClosingParenthesisIndentation
+  ) do |arguments|
     raise(Puppet::ParseError, "regexpescape(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     value = arguments[0]
diff --git a/lib/puppet/parser/functions/reject.rb b/lib/puppet/parser/functions/reject.rb
index 6342db6e4..490249c53 100644
--- a/lib/puppet/parser/functions/reject.rb
+++ b/lib/puppet/parser/functions/reject.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # reject.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:reject, :type => :rvalue, :doc => <<-DOC) do |args|
+  newfunction(:reject, type: :rvalue, doc: <<-DOC) do |args|
     @summary
       This function searches through an array and rejects all elements that match
       the provided regular expression.
diff --git a/lib/puppet/parser/functions/reverse.rb b/lib/puppet/parser/functions/reverse.rb
index 8b97a9731..38250bb09 100644
--- a/lib/puppet/parser/functions/reverse.rb
+++ b/lib/puppet/parser/functions/reverse.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # reverse.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:reverse, :type => :rvalue, :doc => <<-DOC
+  newfunction(:reverse, type: :rvalue, doc: <<-DOC
     @summary
       Reverses the order of a string or array.
 
@@ -11,8 +13,7 @@ module Puppet::Parser::Functions
 
     > *Note:* that the same can be done with the reverse_each() function in Puppet.
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "reverse(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     value = arguments[0]
diff --git a/lib/puppet/parser/functions/round.rb b/lib/puppet/parser/functions/round.rb
index 12067bad9..bb1013ad9 100644
--- a/lib/puppet/parser/functions/round.rb
+++ b/lib/puppet/parser/functions/round.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # round.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:round, :type => :rvalue, :doc => <<-DOC
+  newfunction(:round, type: :rvalue, doc: <<-DOC
     @summary
       Rounds a number to the nearest integer
 
@@ -18,8 +20,7 @@ module Puppet::Parser::Functions
     > *Note:* from Puppet 6.0.0, the compatible function with the same name in Puppet core
       will be used instead of this function.
   DOC
-             ) do |args|
-
+  ) do |args|
     raise Puppet::ParseError, "round(): Wrong number of arguments given #{args.size} for 1" if args.size != 1
     raise Puppet::ParseError, "round(): Expected a Numeric, got #{args[0].class}" unless args[0].is_a? Numeric
 
diff --git a/lib/puppet/parser/functions/rstrip.rb b/lib/puppet/parser/functions/rstrip.rb
index fc809c8bf..d07ef6398 100644
--- a/lib/puppet/parser/functions/rstrip.rb
+++ b/lib/puppet/parser/functions/rstrip.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 #  rstrip.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:rstrip, :type => :rvalue, :doc => <<-DOC
+  newfunction(:rstrip, type: :rvalue, doc: <<-DOC
     @summary
       Strips leading spaces to the right of the string.
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
     > *Note:* from Puppet 6.0.0, the compatible function with the same name in Puppet core
     will be used instead of this function.
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "rstrip(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     value = arguments[0]
diff --git a/lib/puppet/parser/functions/seeded_rand.rb b/lib/puppet/parser/functions/seeded_rand.rb
index 848e09283..eb495e812 100644
--- a/lib/puppet/parser/functions/seeded_rand.rb
+++ b/lib/puppet/parser/functions/seeded_rand.rb
@@ -1,11 +1,13 @@
+# frozen_string_literal: true
+
 #
 # seeded_rand.rb
 #
 Puppet::Parser::Functions.newfunction(
   :seeded_rand,
-  :arity => 2,
-  :type => :rvalue,
-  :doc => <<-DOC
+  arity: 2,
+  type: :rvalue,
+  doc: <<-DOC,
     @summary
       Generates a random whole number greater than or equal to 0 and less than MAX, using the value of SEED for repeatable randomness.
 
diff --git a/lib/puppet/parser/functions/shell_escape.rb b/lib/puppet/parser/functions/shell_escape.rb
index 0cf07e59e..113feee5d 100644
--- a/lib/puppet/parser/functions/shell_escape.rb
+++ b/lib/puppet/parser/functions/shell_escape.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 require 'shellwords'
 #
 # shell_escape.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:shell_escape, :type => :rvalue, :doc => <<-DOC
+  newfunction(:shell_escape, type: :rvalue, doc: <<-DOC
     @summary
       Escapes a string so that it can be safely used in a Bourne shell command line.
 
@@ -15,8 +17,7 @@ module Puppet::Parser::Functions
 
     This function behaves the same as ruby's Shellwords.shellescape() function.
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "shell_escape(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.size != 1
 
     # explicit conversion to string is required for ruby 1.9
diff --git a/lib/puppet/parser/functions/shell_join.rb b/lib/puppet/parser/functions/shell_join.rb
index e498f55e1..12d1652af 100644
--- a/lib/puppet/parser/functions/shell_join.rb
+++ b/lib/puppet/parser/functions/shell_join.rb
@@ -1,10 +1,11 @@
+# frozen_string_literal: true
 
 require 'shellwords'
 #
 # shell_join.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:shell_join, :type => :rvalue, :doc => <<-DOC
+  newfunction(:shell_join, type: :rvalue, doc: <<-DOC
     @summary
     Builds a command line string from the given array of strings.
     Each array item is escaped for Bourne shell. All items are then joined together, with a single space in between.
@@ -13,8 +14,7 @@ module Puppet::Parser::Functions
     @return
       a command line string
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "shell_join(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.size != 1
 
     array = arguments[0]
diff --git a/lib/puppet/parser/functions/shell_split.rb b/lib/puppet/parser/functions/shell_split.rb
index 7c9f12375..1fa3c8ed3 100644
--- a/lib/puppet/parser/functions/shell_split.rb
+++ b/lib/puppet/parser/functions/shell_split.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 require 'shellwords'
 #
 # shell_split.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:shell_split, :type => :rvalue, :doc => <<-DOC
+  newfunction(:shell_split, type: :rvalue, doc: <<-DOC
     @summary
       Splits a string into an array of tokens in the same way the Bourne shell does.
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
 
     This function behaves the same as ruby's Shellwords.shellsplit() function
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "shell_split(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.size != 1
 
     string = arguments[0].to_s
diff --git a/lib/puppet/parser/functions/shuffle.rb b/lib/puppet/parser/functions/shuffle.rb
index 3e10739a5..c79ec2e8a 100644
--- a/lib/puppet/parser/functions/shuffle.rb
+++ b/lib/puppet/parser/functions/shuffle.rb
@@ -1,16 +1,17 @@
+# frozen_string_literal: true
+
 #
 # shuffle.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:shuffle, :type => :rvalue, :doc => <<-DOC
+  newfunction(:shuffle, type: :rvalue, doc: <<-DOC
   @summary
     Randomizes the order of a string or array elements.
 
    @return
      randomized string or array
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "shuffle(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     value = arguments[0]
diff --git a/lib/puppet/parser/functions/size.rb b/lib/puppet/parser/functions/size.rb
index 39b856c1b..9942bb13b 100644
--- a/lib/puppet/parser/functions/size.rb
+++ b/lib/puppet/parser/functions/size.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # size.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:size, :type => :rvalue, :doc => <<-DOC
+  newfunction(:size, type: :rvalue, doc: <<-DOC
     @summary
       Returns the number of elements in a string, an array or a hash
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
     > *Note:* that since Puppet 5.4.0, the length() function in Puppet is preferred over this. For versions
     of Puppet < 5.4.0 use the stdlib length() function.
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "size(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     item = arguments[0]
diff --git a/lib/puppet/parser/functions/sort.rb b/lib/puppet/parser/functions/sort.rb
index a6e0509dc..29c9f6098 100644
--- a/lib/puppet/parser/functions/sort.rb
+++ b/lib/puppet/parser/functions/sort.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 #
 #  sort.rb
 #  Please note: This function is an implementation of a Ruby class and as such may not be entirely UTF8 compatible. To ensure compatibility please use this function with Ruby 2.4.0 or greater - https://bugs.ruby-lang.org/issues/10085.
 #
 module Puppet::Parser::Functions
-  newfunction(:sort, :type => :rvalue, :doc => <<-DOC
+  newfunction(:sort, type: :rvalue, doc: <<-DOC
     @summary
       Sorts strings and arrays lexically.
 
@@ -12,8 +14,7 @@ module Puppet::Parser::Functions
 
     Note that from Puppet 6.0.0 the same function in Puppet will be used instead of this.
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     if arguments.size != 1
       raise(Puppet::ParseError, "sort(): Wrong number of arguments given #{arguments.size} for 1")
     end
diff --git a/lib/puppet/parser/functions/squeeze.rb b/lib/puppet/parser/functions/squeeze.rb
index 548c93313..9fdc3a8d0 100644
--- a/lib/puppet/parser/functions/squeeze.rb
+++ b/lib/puppet/parser/functions/squeeze.rb
@@ -1,16 +1,17 @@
+# frozen_string_literal: true
+
 #
 # squeeze.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:squeeze, :type => :rvalue, :doc => <<-DOC
+  newfunction(:squeeze, type: :rvalue, doc: <<-DOC
     @summary
       Returns a new string where runs of the same character that occur in this set are replaced by a single character.
 
     @return
       a new string where runs of the same character that occur in this set are replaced by a single character.
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     if (arguments.size != 2) && (arguments.size != 1)
       raise(Puppet::ParseError, "squeeze(): Wrong number of arguments given #{arguments.size} for 2 or 1")
     end
diff --git a/lib/puppet/parser/functions/str2bool.rb b/lib/puppet/parser/functions/str2bool.rb
index 165cf5d64..672306035 100644
--- a/lib/puppet/parser/functions/str2bool.rb
+++ b/lib/puppet/parser/functions/str2bool.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # str2bool.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:str2bool, :type => :rvalue, :doc => <<-DOC
+  newfunction(:str2bool, type: :rvalue, doc: <<-DOC
     @summary
       This converts a string to a boolean.
 
@@ -13,8 +15,7 @@ module Puppet::Parser::Functions
     > *Note:* that since Puppet 5.0.0 the Boolean data type can convert strings to a Boolean value.
     See the function new() in Puppet for details what the Boolean data type supports.
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "str2bool(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     string = arguments[0]
diff --git a/lib/puppet/parser/functions/str2saltedpbkdf2.rb b/lib/puppet/parser/functions/str2saltedpbkdf2.rb
index 1f0a19376..f3cd811a5 100644
--- a/lib/puppet/parser/functions/str2saltedpbkdf2.rb
+++ b/lib/puppet/parser/functions/str2saltedpbkdf2.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 # str2saltedpbkdf2.rb
 #  Please note: This function is an implementation of a Ruby class and as such may not be entirely UTF8 compatible. To ensure compatibility please use this function with Ruby 2.4.0 or greater - https://bugs.ruby-lang.org/issues/10085.
 #
 module Puppet::Parser::Functions
-  newfunction(:str2saltedpbkdf2, :type => :rvalue, :doc => <<-DOC
+  newfunction(:str2saltedpbkdf2, type: :rvalue, doc: <<-DOC
     @summary Convert a string into a salted SHA512 PBKDF2 password hash like requred for OS X / macOS 10.8+
 
     Convert a string into a salted SHA512 PBKDF2 password hash like requred for OS X / macOS 10.8+.
@@ -33,7 +35,7 @@ module Puppet::Parser::Functions
     @return [Hash]
       Provides a hash containing the hex version of the password, the hex version of the salt, and iterations.
   DOC
-             ) do |args|
+  ) do |args|
     require 'openssl'
 
     raise ArgumentError, "str2saltedpbkdf2(): wrong number of arguments (#{args.size} for 3)" if args.size != 3
diff --git a/lib/puppet/parser/functions/str2saltedsha512.rb b/lib/puppet/parser/functions/str2saltedsha512.rb
index 8b1c2c997..a1a278bc7 100644
--- a/lib/puppet/parser/functions/str2saltedsha512.rb
+++ b/lib/puppet/parser/functions/str2saltedsha512.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 #
 #  str2saltedsha512.rb
 #  Please note: This function is an implementation of a Ruby class and as such may not be entirely UTF8 compatible. To ensure compatibility please use this function with Ruby 2.4.0 or greater - https://bugs.ruby-lang.org/issues/10085.
 #
 module Puppet::Parser::Functions
-  newfunction(:str2saltedsha512, :type => :rvalue, :doc => <<-DOC
+  newfunction(:str2saltedsha512, type: :rvalue, doc: <<-DOC
     @summary
       This converts a string to a salted-SHA512 password hash (which is used for
       OS X versions >= 10.7).
@@ -15,7 +17,7 @@ module Puppet::Parser::Functions
     of a salted-SHA512 password hash that can be inserted into your Puppet
     manifests as a valid password attribute.
     DOC
-             ) do |arguments|
+  ) do |arguments|
     require 'digest/sha2'
 
     raise(Puppet::ParseError, "str2saltedsha512(): Wrong number of arguments passed (#{arguments.size} but we require 1)") if arguments.size != 1
diff --git a/lib/puppet/parser/functions/strip.rb b/lib/puppet/parser/functions/strip.rb
index 067af001d..6f11736f2 100644
--- a/lib/puppet/parser/functions/strip.rb
+++ b/lib/puppet/parser/functions/strip.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 #  strip.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:strip, :type => :rvalue, :doc => <<-DOC
+  newfunction(:strip, type: :rvalue, doc: <<-DOC
     @summary
       This function removes leading and trailing whitespace from a string or from
       every string inside an array.
@@ -18,8 +20,7 @@ module Puppet::Parser::Functions
     > *Note:*: from Puppet 6.0.0, the compatible function with the same name in Puppet core
     will be used instead of this function.
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "strip(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     value = arguments[0]
diff --git a/lib/puppet/parser/functions/suffix.rb b/lib/puppet/parser/functions/suffix.rb
index 643d7223a..5c519ba93 100644
--- a/lib/puppet/parser/functions/suffix.rb
+++ b/lib/puppet/parser/functions/suffix.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # suffix.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:suffix, :type => :rvalue, :doc => <<-DOC
+  newfunction(:suffix, type: :rvalue, doc: <<-DOC
     @summary
       This function applies a suffix to all elements in an array, or to the keys
       in a hash.
@@ -21,8 +23,7 @@ module Puppet::Parser::Functions
     ```['a', 'b', 'c'].map |$x| { "${x}p" }```
 
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     # Technically we support two arguments but only first is mandatory ...
     raise(Puppet::ParseError, "suffix(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
diff --git a/lib/puppet/parser/functions/swapcase.rb b/lib/puppet/parser/functions/swapcase.rb
index dd17330b3..cddd289fe 100644
--- a/lib/puppet/parser/functions/swapcase.rb
+++ b/lib/puppet/parser/functions/swapcase.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 #
 #  swapcase.rb
 #  Please note: This function is an implementation of a Ruby class and as such may not be entirely UTF8 compatible. To ensure compatibility please use this function with Ruby 2.4.0 or greater - https://bugs.ruby-lang.org/issues/10085.
 #
 module Puppet::Parser::Functions
-  newfunction(:swapcase, :type => :rvalue, :doc => <<-DOC
+  newfunction(:swapcase, type: :rvalue, doc: <<-DOC
     @summary
       This function will swap the existing case of a string.
 
@@ -15,8 +17,7 @@ module Puppet::Parser::Functions
       swapcase("aBcD")
       Would result in: "AbCd"
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "swapcase(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     value = arguments[0]
diff --git a/lib/puppet/parser/functions/time.rb b/lib/puppet/parser/functions/time.rb
index d123cf68a..e154643f3 100644
--- a/lib/puppet/parser/functions/time.rb
+++ b/lib/puppet/parser/functions/time.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # time.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:time, :type => :rvalue, :doc => <<-DOC
+  newfunction(:time, type: :rvalue, doc: <<-DOC
     @summary
       This function will return the current time since epoch as an integer.
 
@@ -21,8 +23,7 @@ module Puppet::Parser::Functions
     ```Timestamp()```
 
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     # The Time Zone argument is optional ...
     time_zone = arguments[0] if arguments[0]
 
diff --git a/lib/puppet/parser/functions/to_bytes.rb b/lib/puppet/parser/functions/to_bytes.rb
index b7de587ff..b1beb5fe8 100644
--- a/lib/puppet/parser/functions/to_bytes.rb
+++ b/lib/puppet/parser/functions/to_bytes.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # to_bytes.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:to_bytes, :type => :rvalue, :doc => <<-DOC
+  newfunction(:to_bytes, type: :rvalue, doc: <<-DOC
     @summary
         Converts the argument into bytes, for example 4 kB becomes 4096.
 
@@ -13,8 +15,7 @@ module Puppet::Parser::Functions
     These conversions reflect a layperson's understanding of
     1 MB = 1024 KB, when in fact 1 MB = 1000 KB, and 1 MiB = 1024 KiB.
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "to_bytes(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.size != 1
 
     arg = arguments[0]
diff --git a/lib/puppet/parser/functions/try_get_value.rb b/lib/puppet/parser/functions/try_get_value.rb
index 26c0b2d77..8df953089 100644
--- a/lib/puppet/parser/functions/try_get_value.rb
+++ b/lib/puppet/parser/functions/try_get_value.rb
@@ -1,12 +1,14 @@
+# frozen_string_literal: true
+
 #
 # try_get_value.rb
 #
 module Puppet::Parser::Functions
   newfunction(
     :try_get_value,
-    :type => :rvalue,
-    :arity => -2,
-    :doc => <<-DOC
+    type: :rvalue,
+    arity: -2,
+    doc: <<-DOC,
       @summary
         **DEPRECATED:** this function is deprecated, please use dig() instead.
 
diff --git a/lib/puppet/parser/functions/type.rb b/lib/puppet/parser/functions/type.rb
index 6b0140827..57dd3e133 100644
--- a/lib/puppet/parser/functions/type.rb
+++ b/lib/puppet/parser/functions/type.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # type.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:type, :type => :rvalue, :doc => <<-DOC
+  newfunction(:type, type: :rvalue, doc: <<-DOC
     @summary
       **DEPRECATED:** This function will cease to function on Puppet 4;
      please use type3x() before upgrading to Puppet 4 for backwards-compatibility, or migrate to the new parser's typing system.
@@ -16,9 +18,8 @@ module Puppet::Parser::Functions
     * integer
     * boolean
   DOC
-             ) do |args|
-
-    warning("type() DEPRECATED: This function will cease to function on Puppet 4; please use type3x() before upgrading to puppet 4 for backwards-compatibility, or migrate to the new parser's typing system.") # rubocop:disable Metrics/LineLength : Cannot reduce line length
+  ) do |args|
+    warning("type() DEPRECATED: This function will cease to function on Puppet 4; please use type3x() before upgrading to puppet 4 for backwards-compatibility, or migrate to the new parser's typing system.") # rubocop:disable Layout/LineLength : Cannot reduce line length
     unless Puppet::Parser::Functions.autoloader.loaded?(:type3x)
       Puppet::Parser::Functions.autoloader.load(:type3x)
     end
diff --git a/lib/puppet/parser/functions/type3x.rb b/lib/puppet/parser/functions/type3x.rb
index e8d90d838..49903b905 100644
--- a/lib/puppet/parser/functions/type3x.rb
+++ b/lib/puppet/parser/functions/type3x.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # type3x.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:type3x, :type => :rvalue, :doc => <<-DOC
+  newfunction(:type3x, type: :rvalue, doc: <<-DOC
     @summary
       **DEPRECATED:** This function will be removed when Puppet 3 support is dropped; please migrate to the new parser's typing system.
 
@@ -15,7 +17,7 @@ module Puppet::Parser::Functions
     * integer
     * boolean
   DOC
-             ) do |args|
+  ) do |args|
     raise(Puppet::ParseError, "type3x(): Wrong number of arguments given (#{args.size} for 1)") unless args.size == 1
 
     value = args[0]
diff --git a/lib/puppet/parser/functions/union.rb b/lib/puppet/parser/functions/union.rb
index ac521e55c..353e51e8e 100644
--- a/lib/puppet/parser/functions/union.rb
+++ b/lib/puppet/parser/functions/union.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # union.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:union, :type => :rvalue, :doc => <<-DOC
+  newfunction(:union, type: :rvalue, doc: <<-DOC
     @summary
       This function returns a union of two or more arrays.
 
@@ -13,8 +15,7 @@ module Puppet::Parser::Functions
       union(["a","b","c"],["b","c","d"])
       Would return: ["a","b","c","d"]
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     # Check that 2 or more arguments have been given ...
     raise(Puppet::ParseError, "union(): Wrong number of arguments given (#{arguments.size} for < 2)") if arguments.size < 2
 
diff --git a/lib/puppet/parser/functions/unique.rb b/lib/puppet/parser/functions/unique.rb
index c9eaa08ef..7efdaa39e 100644
--- a/lib/puppet/parser/functions/unique.rb
+++ b/lib/puppet/parser/functions/unique.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # unique.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:unique, :type => :rvalue, :doc => <<-DOC
+  newfunction(:unique, type: :rvalue, doc: <<-DOC
     @summary
       This function will remove duplicates from strings and arrays.
 
@@ -20,8 +22,7 @@ module Puppet::Parser::Functions
       This returns: ["a","b","c"]
 
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     if Puppet::Util::Package.versioncmp(Puppet.version, '5.0.0') >= 0
       function_deprecation([:unique, 'This method is deprecated, please use the core puppet unique function. There is further documentation for the function in the release notes of Puppet 5.0.'])
     end
diff --git a/lib/puppet/parser/functions/unix2dos.rb b/lib/puppet/parser/functions/unix2dos.rb
index 91b259672..95d9dfc50 100644
--- a/lib/puppet/parser/functions/unix2dos.rb
+++ b/lib/puppet/parser/functions/unix2dos.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 # Custom Puppet function to convert unix to dos format
 module Puppet::Parser::Functions
-  newfunction(:unix2dos, :type => :rvalue, :arity => 1, :doc => <<-DOC
+  newfunction(:unix2dos, type: :rvalue, arity: 1, doc: <<-DOC
     @summary
       Returns the DOS version of the given string.
 
@@ -9,8 +11,7 @@ module Puppet::Parser::Functions
 
     Takes a single string argument.
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     unless arguments[0].is_a?(String)
       raise(Puppet::ParseError, 'unix2dos(): Requires string as argument')
     end
diff --git a/lib/puppet/parser/functions/upcase.rb b/lib/puppet/parser/functions/upcase.rb
index de0797039..a7685d1e0 100644
--- a/lib/puppet/parser/functions/upcase.rb
+++ b/lib/puppet/parser/functions/upcase.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 #
 #  upcase.rb
 #  Please note: This function is an implementation of a Ruby class and as such may not be entirely UTF8 compatible. To ensure compatibility please use this function with Ruby 2.4.0 or greater - https://bugs.ruby-lang.org/issues/10085.
 #
 module Puppet::Parser::Functions
-  newfunction(:upcase, :type => :rvalue, :doc => <<-DOC
+  newfunction(:upcase, type: :rvalue, doc: <<-DOC
     @summary
       Converts a string or an array of strings to uppercase.
 
@@ -18,8 +20,7 @@ module Puppet::Parser::Functions
     > *Note:* from Puppet 6.0.0, the compatible function with the same name in Puppet core
     will be used instead of this function.
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "upcase(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.size != 1
 
     value = arguments[0]
diff --git a/lib/puppet/parser/functions/uriescape.rb b/lib/puppet/parser/functions/uriescape.rb
index 4078b86c4..b7de4c1e4 100644
--- a/lib/puppet/parser/functions/uriescape.rb
+++ b/lib/puppet/parser/functions/uriescape.rb
@@ -1,10 +1,12 @@
+# frozen_string_literal: true
+
 require 'uri'
 #
 #  uriescape.rb
 #  Please note: This function is an implementation of a Ruby class and as such may not be entirely UTF8 compatible. To ensure compatibility please use this function with Ruby 2.4.0 or greater - https://bugs.ruby-lang.org/issues/10085.
 #
 module Puppet::Parser::Functions
-  newfunction(:uriescape, :type => :rvalue, :doc => <<-DOC
+  newfunction(:uriescape, type: :rvalue, doc: <<-DOC
     @summary
       Urlencodes a string or array of strings.
       Requires either a single string or an array as an input.
@@ -13,8 +15,7 @@ module Puppet::Parser::Functions
       a string that contains the converted value
 
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "uriescape(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     value = arguments[0]
diff --git a/lib/puppet/parser/functions/validate_absolute_path.rb b/lib/puppet/parser/functions/validate_absolute_path.rb
index 7d794452f..e0ea72b4c 100644
--- a/lib/puppet/parser/functions/validate_absolute_path.rb
+++ b/lib/puppet/parser/functions/validate_absolute_path.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # validate_absolute_path.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:validate_absolute_path, :doc => <<-DOC) do |args|
+  newfunction(:validate_absolute_path, doc: <<-DOC) do |args|
     @summary
       Validate the string represents an absolute path in the filesystem.  This function works
       for windows and unix style paths.
diff --git a/lib/puppet/parser/functions/validate_array.rb b/lib/puppet/parser/functions/validate_array.rb
index d24f75e48..15cbc4480 100644
--- a/lib/puppet/parser/functions/validate_array.rb
+++ b/lib/puppet/parser/functions/validate_array.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # validate_array.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:validate_array, :doc => <<-DOC) do |args|
+  newfunction(:validate_array, doc: <<-DOC) do |args|
     @summary
       Validate that all passed values are array data structures. Abort catalog
       compilation if any value fails this check.
diff --git a/lib/puppet/parser/functions/validate_augeas.rb b/lib/puppet/parser/functions/validate_augeas.rb
index 26e51e8ff..55f932f29 100644
--- a/lib/puppet/parser/functions/validate_augeas.rb
+++ b/lib/puppet/parser/functions/validate_augeas.rb
@@ -1,10 +1,12 @@
+# frozen_string_literal: true
+
 require 'tempfile'
 
 #
 # validate_augaes.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:validate_augeas, :doc => <<-DOC
+  newfunction(:validate_augeas, doc: <<-DOC
     @summary
       Perform validation of a string using an Augeas lens
 
@@ -40,7 +42,7 @@ module Puppet::Parser::Functions
         validate_augeas($sudoerscontent, 'Sudoers.lns', [], 'Failed to validate sudoers content with Augeas')
 
     DOC
-             ) do |args|
+  ) do |args|
     unless Puppet.features.augeas?
       raise Puppet::ParseError, 'validate_augeas(): this function requires the augeas feature. See http://docs.puppetlabs.com/guides/augeas.html#pre-requisites for how to activate it.'
     end
@@ -67,9 +69,9 @@ module Puppet::Parser::Functions
       # Check for syntax
       lens = args[1]
       aug.transform(
-        :lens => lens,
-        :name => 'Validate_augeas',
-        :incl => tmpfile.path,
+        lens: lens,
+        name: 'Validate_augeas',
+        incl: tmpfile.path,
       )
       aug.load!
 
diff --git a/lib/puppet/parser/functions/validate_bool.rb b/lib/puppet/parser/functions/validate_bool.rb
index d6f07af00..125d26278 100644
--- a/lib/puppet/parser/functions/validate_bool.rb
+++ b/lib/puppet/parser/functions/validate_bool.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # validate_bool.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:validate_bool, :doc => <<-DOC
+  newfunction(:validate_bool, doc: <<-DOC
     @summary
       Validate that all passed values are either true or false. Abort catalog
       compilation if any value fails this check.
@@ -25,7 +27,7 @@ module Puppet::Parser::Functions
           validate_bool("true")
           validate_bool($some_array)
       DOC
-             ) do |args|
+  ) do |args|
     if args.empty?
       raise Puppet::ParseError, "validate_bool(): wrong number of arguments (#{args.length}; must be > 0)"
     end
diff --git a/lib/puppet/parser/functions/validate_cmd.rb b/lib/puppet/parser/functions/validate_cmd.rb
index 592d0ee32..16b4ab932 100644
--- a/lib/puppet/parser/functions/validate_cmd.rb
+++ b/lib/puppet/parser/functions/validate_cmd.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'puppet/util/execution'
 require 'tempfile'
 
@@ -5,7 +7,7 @@
 # validate_cmd.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:validate_cmd, :doc => <<-DOC
+  newfunction(:validate_cmd, doc: <<-DOC
     @summary
       Perform validation of a string with an external command.
 
@@ -31,7 +33,7 @@ module Puppet::Parser::Functions
         validate_cmd($haproxycontent, '/usr/sbin/haproxy -f % -c', 'Haproxy failed to validate config content')
 
     DOC
-             ) do |args|
+  ) do |args|
     if (args.length < 2) || (args.length > 3)
       raise Puppet::ParseError, "validate_cmd(): wrong number of arguments (#{args.length}; must be 2 or 3)"
     end
@@ -47,7 +49,7 @@ module Puppet::Parser::Functions
       tmpfile.write(content)
       tmpfile.close
 
-      check_with_correct_location = if checkscript =~ %r{\s%(\s|$)}
+      check_with_correct_location = if %r{\s%(\s|$)}.match?(checkscript)
                                       checkscript.gsub(%r{%}, tmpfile.path)
                                     else
                                       "#{checkscript} #{tmpfile.path}"
diff --git a/lib/puppet/parser/functions/validate_domain_name.rb b/lib/puppet/parser/functions/validate_domain_name.rb
index f3dc1d5f1..0ed576f16 100644
--- a/lib/puppet/parser/functions/validate_domain_name.rb
+++ b/lib/puppet/parser/functions/validate_domain_name.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # validate_domain_name.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:validate_domain_name, :doc => <<-DOC
+  newfunction(:validate_domain_name, doc: <<-DOC
     @summary
       Validate that all values passed are syntactically correct domain names.
       Fail compilation if any value fails this check.
@@ -26,8 +28,7 @@ module Puppet::Parser::Functions
           validate_domain_name('-foo.example.com')
           validate_domain_name('www.example.2com')
     DOC
-             ) do |args|
-
+  ) do |args|
     rescuable_exceptions = [ArgumentError]
 
     if args.empty?
diff --git a/lib/puppet/parser/functions/validate_email_address.rb b/lib/puppet/parser/functions/validate_email_address.rb
index 5ad983a30..ae847b591 100644
--- a/lib/puppet/parser/functions/validate_email_address.rb
+++ b/lib/puppet/parser/functions/validate_email_address.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # validate_email_address.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:validate_email_address, :doc => <<-DOC
+  newfunction(:validate_email_address, doc: <<-DOC
     @summary
       Validate that all values passed are valid email addresses.
       Fail compilation if any value fails this check.
@@ -23,7 +25,7 @@ module Puppet::Parser::Functions
         $some_array = [ 'bad_email@/d/efdf.com' ]
         validate_email_address($some_array)
     DOC
-             ) do |args|
+  ) do |args|
     rescuable_exceptions = [ArgumentError]
 
     if args.empty?
diff --git a/lib/puppet/parser/functions/validate_hash.rb b/lib/puppet/parser/functions/validate_hash.rb
index c3b0dfdc6..c34f1e4bc 100644
--- a/lib/puppet/parser/functions/validate_hash.rb
+++ b/lib/puppet/parser/functions/validate_hash.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # validate_hash.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:validate_hash, :doc => <<-DOC
+  newfunction(:validate_hash, doc: <<-DOC
     @summary
       Validate that all passed values are hash data structures. Abort catalog
       compilation if any value fails this check.
@@ -24,8 +26,7 @@ module Puppet::Parser::Functions
           $undefined = undef
           validate_hash($undefined)
     DOC
-             ) do |args|
-
+  ) do |args|
     function_deprecation([:validate_hash, 'This method is deprecated, please use the stdlib validate_legacy function,
                           with Stdlib::Compat::Hash. There is further documentation for validate_legacy function in the README.'])
 
diff --git a/lib/puppet/parser/functions/validate_integer.rb b/lib/puppet/parser/functions/validate_integer.rb
index 6a56d5c71..4ec05b0bb 100644
--- a/lib/puppet/parser/functions/validate_integer.rb
+++ b/lib/puppet/parser/functions/validate_integer.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # validate_interger.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:validate_integer, :doc => <<-DOC
+  newfunction(:validate_integer, doc: <<-DOC
     @summary
       Validate that the first argument is an integer (or an array of integers). Abort catalog compilation if any of the checks fail.
 
@@ -58,7 +60,7 @@ module Puppet::Parser::Functions
       Plus all of the above, but with non-integer items in arrays or maximum / minimum argument.
 
     DOC
-             ) do |args|
+  ) do |args|
     function_deprecation([:validate_integer, 'This method is deprecated, please use the stdlib validate_legacy function,
                             with Stdlib::Compat::Integer. There is further documentation for validate_legacy function in the README.'])
 
diff --git a/lib/puppet/parser/functions/validate_ip_address.rb b/lib/puppet/parser/functions/validate_ip_address.rb
index 3fd582b0e..32400e2b8 100644
--- a/lib/puppet/parser/functions/validate_ip_address.rb
+++ b/lib/puppet/parser/functions/validate_ip_address.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # validate_ip_address.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:validate_ip_address, :doc => <<-DOC
+  newfunction(:validate_ip_address, doc: <<-DOC
     @summary
       Validate that all values passed are valid IP addresses,
       regardless they are IPv4 or IPv6
@@ -28,8 +30,7 @@ module Puppet::Parser::Functions
         $some_array = [ 1, true, false, "garbage string", "3ffe:505:2" ]
         validate_ip_address($some_array)
     DOC
-             ) do |args|
-
+  ) do |args|
     require 'ipaddr'
     rescuable_exceptions = [ArgumentError]
 
diff --git a/lib/puppet/parser/functions/validate_ipv4_address.rb b/lib/puppet/parser/functions/validate_ipv4_address.rb
index 1f3223fab..9e86690e3 100644
--- a/lib/puppet/parser/functions/validate_ipv4_address.rb
+++ b/lib/puppet/parser/functions/validate_ipv4_address.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # validate_ipv4_address.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:validate_ipv4_address, :doc => <<-DOC
+  newfunction(:validate_ipv4_address, doc: <<-DOC
     @summary
       Validate that all values passed are valid IPv4 addresses.
       Fail compilation if any value fails this check.
@@ -22,8 +24,7 @@ module Puppet::Parser::Functions
         $some_array = [ 1, true, false, "garbage string", "3ffe:505:2" ]
         validate_ipv4_address($some_array)
     DOC
-             ) do |args|
-
+  ) do |args|
     function_deprecation([:validate_ipv4_address, 'This method is deprecated, please use the stdlib validate_legacy function,
                             with Stdlib::Compat::Ipv4. There is further documentation for validate_legacy function in the README.'])
 
diff --git a/lib/puppet/parser/functions/validate_ipv6_address.rb b/lib/puppet/parser/functions/validate_ipv6_address.rb
index b1f33fedc..3596e6959 100644
--- a/lib/puppet/parser/functions/validate_ipv6_address.rb
+++ b/lib/puppet/parser/functions/validate_ipv6_address.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # validate_ipv7_address.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:validate_ipv6_address, :doc => <<-DOC
+  newfunction(:validate_ipv6_address, doc: <<-DOC
     @summary
       Validate that all values passed are valid IPv6 addresses.
       Fail compilation if any value fails this check.
@@ -24,8 +26,7 @@ module Puppet::Parser::Functions
         validate_ipv6_address($some_array)
 
     DOC
-             ) do |args|
-
+  ) do |args|
     function_deprecation([:validate_ipv6_address, 'This method is deprecated, please use the stdlib validate_legacy function,
                             with Stdlib::Compat::Ipv6. There is further documentation for validate_legacy function in the README.'])
 
diff --git a/lib/puppet/parser/functions/validate_numeric.rb b/lib/puppet/parser/functions/validate_numeric.rb
index 6ccdb0e96..1bbc6672f 100644
--- a/lib/puppet/parser/functions/validate_numeric.rb
+++ b/lib/puppet/parser/functions/validate_numeric.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # validate_numeric.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:validate_numeric, :doc => <<-DOC
+  newfunction(:validate_numeric, doc: <<-DOC
     @summary
       Validate that the first argument is a numeric value (or an array of numeric values). Abort catalog compilation if any of the checks fail.
 
@@ -18,7 +20,7 @@ module Puppet::Parser::Functions
     For passing and failing usage, see `validate_integer()`. It is all the same for validate_numeric, yet now floating point values are allowed, too.
 
     DOC
-             ) do |args|
+  ) do |args|
     function_deprecation([:validate_numeric, 'This method is deprecated, please use the stdlib validate_legacy function,
                             with Stdlib::Compat::Numeric. There is further documentation for validate_legacy function in the README.'])
 
diff --git a/lib/puppet/parser/functions/validate_re.rb b/lib/puppet/parser/functions/validate_re.rb
index 14ad7abd4..f11628004 100644
--- a/lib/puppet/parser/functions/validate_re.rb
+++ b/lib/puppet/parser/functions/validate_re.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # validate.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:validate_re, :doc => <<-DOC
+  newfunction(:validate_re, doc: <<-DOC
   @summary
     Perform simple validation of a string against one or more regular
     expressions.
@@ -37,7 +39,7 @@ module Puppet::Parser::Functions
   quotes to force stringification:
   validate_re("${::operatingsystemmajrelease}", '^[57]$')
    DOC
-             ) do |args|
+  ) do |args|
     function_deprecation([:validate_re, 'This method is deprecated, please use the stdlib validate_legacy function,
                             with Stdlib::Compat::Re. There is further documentation for validate_legacy function in the README.'])
 
diff --git a/lib/puppet/parser/functions/validate_slength.rb b/lib/puppet/parser/functions/validate_slength.rb
index c28650fcd..c7d5bb6c3 100644
--- a/lib/puppet/parser/functions/validate_slength.rb
+++ b/lib/puppet/parser/functions/validate_slength.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # validate_slength.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:validate_slength, :doc => <<-DOC
+  newfunction(:validate_slength, doc: <<-DOC
     @summary
       Validate that the first argument is a string (or an array of strings), and less/equal to than the length of the second argument.
       An optional third parameter can be given the minimum length. It fails if the first argument is not a string or array of strings,
@@ -24,7 +26,7 @@ module Puppet::Parser::Functions
         validate_slength(["discombobulate","thermometer"],5)
         validate_slength(["discombobulate","moo"],17,10)
     DOC
-             ) do |args|
+  ) do |args|
     function_deprecation([:validate_slength, 'This method is deprecated, please use the stdlib validate_legacy function,
                             with String[]. There is further documentation for validate_legacy function in the README.'])
 
diff --git a/lib/puppet/parser/functions/validate_string.rb b/lib/puppet/parser/functions/validate_string.rb
index f6c52a711..6dd9634b9 100644
--- a/lib/puppet/parser/functions/validate_string.rb
+++ b/lib/puppet/parser/functions/validate_string.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # validate_String.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:validate_string, :doc => <<-DOC
+  newfunction(:validate_string, doc: <<-DOC
     @summary
       Validate that all passed values are string data structures
 
@@ -29,7 +31,7 @@ module Puppet::Parser::Functions
         }
     ```
     DOC
-             ) do |args|
+  ) do |args|
     function_deprecation([:validate_string, 'This method is deprecated, please use the stdlib validate_legacy function,
                             with Stdlib::Compat::String. There is further documentation for validate_legacy function in the README.'])
 
diff --git a/lib/puppet/parser/functions/validate_x509_rsa_key_pair.rb b/lib/puppet/parser/functions/validate_x509_rsa_key_pair.rb
index 93388e0d0..a62ba3753 100644
--- a/lib/puppet/parser/functions/validate_x509_rsa_key_pair.rb
+++ b/lib/puppet/parser/functions/validate_x509_rsa_key_pair.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # validate_x509_rsa_key_pair.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:validate_x509_rsa_key_pair, :doc => <<-DOC
+  newfunction(:validate_x509_rsa_key_pair, doc: <<-DOC
     @summary
       Validates a PEM-formatted X.509 certificate and RSA private key using
       OpenSSL. Verifies that the certficate's signature was created from the
@@ -14,8 +16,7 @@ module Puppet::Parser::Functions
     ```validate_x509_rsa_key_pair($cert, $key)```
 
     DOC
-             ) do |args|
-
+  ) do |args|
     require 'openssl'
 
     NUM_ARGS = 2 unless defined? NUM_ARGS
diff --git a/lib/puppet/parser/functions/values.rb b/lib/puppet/parser/functions/values.rb
index 434ce6c91..a47fe5277 100644
--- a/lib/puppet/parser/functions/values.rb
+++ b/lib/puppet/parser/functions/values.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # values.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:values, :type => :rvalue, :doc => <<-DOC
+  newfunction(:values, type: :rvalue, doc: <<-DOC
     @summary
       When given a hash this function will return the values of that hash.
 
@@ -24,8 +26,7 @@ module Puppet::Parser::Functions
     will be used instead of this function.
 
   DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "values(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?
 
     hash = arguments[0]
diff --git a/lib/puppet/parser/functions/values_at.rb b/lib/puppet/parser/functions/values_at.rb
index 337104207..29301b8e1 100644
--- a/lib/puppet/parser/functions/values_at.rb
+++ b/lib/puppet/parser/functions/values_at.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # values_at.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:values_at, :type => :rvalue, :doc => <<-DOC
+  newfunction(:values_at, type: :rvalue, doc: <<-DOC
     @summary
       Finds value inside an array based on location.
 
@@ -36,8 +38,7 @@ module Puppet::Parser::Functions
     `['a', 'b', 'c', 'd'][1, -2]`  results in `['b', 'c']`
 
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     raise(Puppet::ParseError, "values_at(): Wrong number of arguments given (#{arguments.size} for 2)") if arguments.size < 2
 
     array = arguments.shift
@@ -74,7 +75,7 @@ module Puppet::Parser::Functions
         range.each { |i| indices_list << i.to_i } # rubocop:disable Lint/ShadowingOuterLocalVariable : Value is meant to be shadowed
       else
         # Only positive numbers allowed in this case ...
-        unless i =~ %r{^\d+$}
+        unless %r{^\d+$}.match?(i)
           raise(Puppet::ParseError, 'values_at(): Unknown format of given index')
         end
 
diff --git a/lib/puppet/parser/functions/zip.rb b/lib/puppet/parser/functions/zip.rb
index 120d09720..100618340 100644
--- a/lib/puppet/parser/functions/zip.rb
+++ b/lib/puppet/parser/functions/zip.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 #
 # zip.rb
 #
 module Puppet::Parser::Functions
-  newfunction(:zip, :type => :rvalue, :doc => <<-DOC
+  newfunction(:zip, type: :rvalue, doc: <<-DOC
     @summary
       Takes one element from first array and merges corresponding elements from second array.
 
@@ -13,8 +15,7 @@ module Puppet::Parser::Functions
       zip(['1','2','3'],['4','5','6'])
       Would result in: ["1", "4"], ["2", "5"], ["3", "6"]
     DOC
-             ) do |arguments|
-
+  ) do |arguments|
     # Technically we support three arguments but only first is mandatory ...
     raise(Puppet::ParseError, "zip(): Wrong number of arguments given (#{arguments.size} for 2)") if arguments.size < 2
 
diff --git a/lib/puppet/provider/file_line/ruby.rb b/lib/puppet/provider/file_line/ruby.rb
index f85ae85f8..41e053168 100644
--- a/lib/puppet/provider/file_line/ruby.rb
+++ b/lib/puppet/provider/file_line/ruby.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 Puppet::Type.type(:file_line).provide(:ruby) do
   desc <<-DOC
     @summary
@@ -77,7 +79,7 @@ def lines
     #  small-ish config files that can fit into memory without
     #  too much trouble.
 
-    @lines ||= File.readlines(resource[:path], :encoding => resource[:encoding])
+    @lines ||= File.readlines(resource[:path], encoding: resource[:encoding])
   rescue TypeError => _e
     # Ruby 1.8 doesn't support open_args
     @lines ||= File.readlines(resource[:path])
@@ -92,13 +94,13 @@ def new_match_regex
   end
 
   def count_matches(regex)
-    lines.select { |line|
+    lines.count do |line|
       if resource[:replace_all_matches_not_matching_line].to_s == 'true'
         line.match(regex) unless line.chomp == resource[:line]
       else
         line.match(regex)
       end
-    }.size
+    end
   end
 
   def handle_create_with_match
diff --git a/lib/puppet/type/anchor.rb b/lib/puppet/type/anchor.rb
index 7458a4b98..8bd35d747 100644
--- a/lib/puppet/type/anchor.rb
+++ b/lib/puppet/type/anchor.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 Puppet::Type.newtype(:anchor) do
   desc <<-DOC
   @summary
diff --git a/lib/puppet/type/file_line.rb b/lib/puppet/type/file_line.rb
index ead6b1033..00a6512cb 100644
--- a/lib/puppet/type/file_line.rb
+++ b/lib/puppet/type/file_line.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 Puppet::Type.newtype(:file_line) do
   desc <<-DOC
     @summary
@@ -104,7 +106,7 @@
     defaultto :present
   end
 
-  newparam(:name, :namevar => true) do
+  newparam(:name, namevar: true) do
     desc 'An arbitrary name used as the identity of the resource.'
   end
 
diff --git a/spec/acceptance/anchor_spec.rb b/spec/acceptance/anchor_spec.rb
index fda167425..9136b6623 100644
--- a/spec/acceptance/anchor_spec.rb
+++ b/spec/acceptance/anchor_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper_acceptance'
 
 describe 'anchor type' do
diff --git a/spec/acceptance/file_line_spec.rb b/spec/acceptance/file_line_spec.rb
index d8068deb3..a322ab111 100644
--- a/spec/acceptance/file_line_spec.rb
+++ b/spec/acceptance/file_line_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper_acceptance'
 
 describe 'file_line type' do
diff --git a/spec/functions/abs_spec.rb b/spec/functions/abs_spec.rb
index 24dfa2fda..00448640e 100644
--- a/spec/functions/abs_spec.rb
+++ b/spec/functions/abs_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 if Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0
   describe 'abs' do
diff --git a/spec/functions/any2array_spec.rb b/spec/functions/any2array_spec.rb
index a7956722e..7ddf67b47 100644
--- a/spec/functions/any2array_spec.rb
+++ b/spec/functions/any2array_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'any2array' do
diff --git a/spec/functions/any2bool_spec.rb b/spec/functions/any2bool_spec.rb
index 4de9d216f..ff06a689d 100644
--- a/spec/functions/any2bool_spec.rb
+++ b/spec/functions/any2bool_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'any2bool' do
@@ -34,7 +36,7 @@
   end
 
   describe 'everything else returns true' do
-    [[], {}, ['1'], [1], { :one => 1 }].each do |value|
+    [[], {}, ['1'], [1], { one: 1 }].each do |value|
       it { is_expected.to run.with_params(value).and_return(true) }
     end
   end
diff --git a/spec/functions/assert_private_spec.rb b/spec/functions/assert_private_spec.rb
index ee7db0b23..cb1e896bb 100644
--- a/spec/functions/assert_private_spec.rb
+++ b/spec/functions/assert_private_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'assert_private' do
diff --git a/spec/functions/base64_spec.rb b/spec/functions/base64_spec.rb
index dafab360c..3a1081190 100644
--- a/spec/functions/base64_spec.rb
+++ b/spec/functions/base64_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'base64' do
diff --git a/spec/functions/basename_spec.rb b/spec/functions/basename_spec.rb
index a2a12a1f8..3f520602a 100644
--- a/spec/functions/basename_spec.rb
+++ b/spec/functions/basename_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'basename' do
diff --git a/spec/functions/bool2num_spec.rb b/spec/functions/bool2num_spec.rb
index 7402f3a9f..63a664b6b 100644
--- a/spec/functions/bool2num_spec.rb
+++ b/spec/functions/bool2num_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'bool2num' do
diff --git a/spec/functions/bool2str_spec.rb b/spec/functions/bool2str_spec.rb
index 8d8f9b5bc..013d5514f 100644
--- a/spec/functions/bool2str_spec.rb
+++ b/spec/functions/bool2str_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'bool2str' do
diff --git a/spec/functions/camelcase_spec.rb b/spec/functions/camelcase_spec.rb
index e0e4003b7..aa78fcbdc 100644
--- a/spec/functions/camelcase_spec.rb
+++ b/spec/functions/camelcase_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'camelcase', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
+describe 'camelcase', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError) }
   it { is_expected.to run.with_params(100).and_raise_error(Puppet::ParseError) }
diff --git a/spec/functions/capitalize_spec.rb b/spec/functions/capitalize_spec.rb
index dd5fc354b..f67c8beff 100644
--- a/spec/functions/capitalize_spec.rb
+++ b/spec/functions/capitalize_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'capitalize', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
+describe 'capitalize', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError) }
   it { is_expected.to run.with_params(100).and_raise_error(Puppet::ParseError) }
diff --git a/spec/functions/ceiling_spec.rb b/spec/functions/ceiling_spec.rb
index 7f9a0450a..5e5f34c94 100644
--- a/spec/functions/ceiling_spec.rb
+++ b/spec/functions/ceiling_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'ceiling', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
+describe 'ceiling', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{Wrong number of arguments}) }
   it { is_expected.to run.with_params('foo').and_raise_error(Puppet::ParseError, %r{Wrong argument type given}) }
diff --git a/spec/functions/chomp_spec.rb b/spec/functions/chomp_spec.rb
index 2137c6166..68b7cd3dc 100644
--- a/spec/functions/chomp_spec.rb
+++ b/spec/functions/chomp_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'chomp', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
+describe 'chomp', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{Wrong number of arguments given}) }
   it { is_expected.to run.with_params(1).and_raise_error(Puppet::ParseError, %r{Requires either array or string}) }
diff --git a/spec/functions/chop_spec.rb b/spec/functions/chop_spec.rb
index be9098129..2cbccd14d 100644
--- a/spec/functions/chop_spec.rb
+++ b/spec/functions/chop_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'chop', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
+describe 'chop', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{Wrong number of arguments}) }
   it { is_expected.to run.with_params(1).and_raise_error(Puppet::ParseError, %r{Requires either an array or string}) }
diff --git a/spec/functions/clamp_spec.rb b/spec/functions/clamp_spec.rb
index 6380b2936..37b4935c9 100644
--- a/spec/functions/clamp_spec.rb
+++ b/spec/functions/clamp_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'clamp' do
diff --git a/spec/functions/concat_spec.rb b/spec/functions/concat_spec.rb
index 9290d407c..d0893e991 100644
--- a/spec/functions/concat_spec.rb
+++ b/spec/functions/concat_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'concat' do
diff --git a/spec/functions/convert_base_spec.rb b/spec/functions/convert_base_spec.rb
index d1a6cef14..a2de736c9 100644
--- a/spec/functions/convert_base_spec.rb
+++ b/spec/functions/convert_base_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'convert_base' do
diff --git a/spec/functions/count_spec.rb b/spec/functions/count_spec.rb
index 54e1491c4..564974a23 100644
--- a/spec/functions/count_spec.rb
+++ b/spec/functions/count_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'count' do
diff --git a/spec/functions/deep_merge_spec.rb b/spec/functions/deep_merge_spec.rb
index 489bca58e..bd40d6720 100644
--- a/spec/functions/deep_merge_spec.rb
+++ b/spec/functions/deep_merge_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'deep_merge' do
diff --git a/spec/functions/defined_with_params_spec.rb b/spec/functions/defined_with_params_spec.rb
index 36a627d3a..e372cd319 100644
--- a/spec/functions/defined_with_params_spec.rb
+++ b/spec/functions/defined_with_params_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'defined_with_params' do
diff --git a/spec/functions/delete_at_spec.rb b/spec/functions/delete_at_spec.rb
index 89359b1b8..7bc714044 100644
--- a/spec/functions/delete_at_spec.rb
+++ b/spec/functions/delete_at_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'delete_at' do
diff --git a/spec/functions/delete_regex_spec.rb b/spec/functions/delete_regex_spec.rb
index 8e16b0b3d..ab9516f1b 100644
--- a/spec/functions/delete_regex_spec.rb
+++ b/spec/functions/delete_regex_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'delete_regex' do
diff --git a/spec/functions/delete_spec.rb b/spec/functions/delete_spec.rb
index df5ee7a40..5fe782513 100644
--- a/spec/functions/delete_spec.rb
+++ b/spec/functions/delete_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'delete' do
diff --git a/spec/functions/delete_undef_values_spec.rb b/spec/functions/delete_undef_values_spec.rb
index 129457949..068217f61 100644
--- a/spec/functions/delete_undef_values_spec.rb
+++ b/spec/functions/delete_undef_values_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'delete_undef_values' do
diff --git a/spec/functions/delete_values_spec.rb b/spec/functions/delete_values_spec.rb
index 3ee3af13c..4a488934a 100644
--- a/spec/functions/delete_values_spec.rb
+++ b/spec/functions/delete_values_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'delete_values' do
diff --git a/spec/functions/deprecation_spec.rb b/spec/functions/deprecation_spec.rb
index 50203c9b0..d03b5e2d2 100644
--- a/spec/functions/deprecation_spec.rb
+++ b/spec/functions/deprecation_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/functions/difference_spec.rb b/spec/functions/difference_spec.rb
index b30437e71..292023c19 100644
--- a/spec/functions/difference_spec.rb
+++ b/spec/functions/difference_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'difference' do
diff --git a/spec/functions/dig44_spec.rb b/spec/functions/dig44_spec.rb
index e7c6d817c..576935f3f 100644
--- a/spec/functions/dig44_spec.rb
+++ b/spec/functions/dig44_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'dig44' do
diff --git a/spec/functions/dig_spec.rb b/spec/functions/dig_spec.rb
index ac2b6e443..a11ab7ec6 100644
--- a/spec/functions/dig_spec.rb
+++ b/spec/functions/dig_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'dig' do
diff --git a/spec/functions/dirname_spec.rb b/spec/functions/dirname_spec.rb
index cda15c8d7..a801f1c1f 100644
--- a/spec/functions/dirname_spec.rb
+++ b/spec/functions/dirname_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'dirname' do
diff --git a/spec/functions/dos2unix_spec.rb b/spec/functions/dos2unix_spec.rb
index 4b04f5bba..d86d93ba8 100644
--- a/spec/functions/dos2unix_spec.rb
+++ b/spec/functions/dos2unix_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'dos2unix' do
diff --git a/spec/functions/downcase_spec.rb b/spec/functions/downcase_spec.rb
index 181e282b9..07c6374c3 100644
--- a/spec/functions/downcase_spec.rb
+++ b/spec/functions/downcase_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'downcase', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
+describe 'downcase', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{Wrong number of arguments}) }
   it { is_expected.to run.with_params(100).and_raise_error(Puppet::ParseError, %r{Requires either array or string}) }
diff --git a/spec/functions/empty_spec.rb b/spec/functions/empty_spec.rb
index 695c8a5ad..5b0ba29cd 100644
--- a/spec/functions/empty_spec.rb
+++ b/spec/functions/empty_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'empty', :if => Puppet::Util::Package.versioncmp(Puppet.version, '5.5.0') < 0 do
+describe 'empty', if: Puppet::Util::Package.versioncmp(Puppet.version, '5.5.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{Wrong number of arguments}) }
   it {
diff --git a/spec/functions/end_with_spec.rb b/spec/functions/end_with_spec.rb
index 5c1e8a974..19c4ed68a 100644
--- a/spec/functions/end_with_spec.rb
+++ b/spec/functions/end_with_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'stdlib::end_with' do
diff --git a/spec/functions/ensure_packages_spec.rb b/spec/functions/ensure_packages_spec.rb
index 6d1a84181..1f6b85db0 100644
--- a/spec/functions/ensure_packages_spec.rb
+++ b/spec/functions/ensure_packages_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'ensure_packages' do
diff --git a/spec/functions/ensure_resource_spec.rb b/spec/functions/ensure_resource_spec.rb
index 9bbfaccf8..b7266f75b 100644
--- a/spec/functions/ensure_resource_spec.rb
+++ b/spec/functions/ensure_resource_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'ensure_resource' do
diff --git a/spec/functions/ensure_resources_spec.rb b/spec/functions/ensure_resources_spec.rb
index 10a27bfd4..55dac3d67 100644
--- a/spec/functions/ensure_resources_spec.rb
+++ b/spec/functions/ensure_resources_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'ensure_resources' do
diff --git a/spec/functions/extname_spec.rb b/spec/functions/extname_spec.rb
index 0a8d3caf7..4808e11b4 100644
--- a/spec/functions/extname_spec.rb
+++ b/spec/functions/extname_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'stdlib::extname' do
diff --git a/spec/functions/flatten_spec.rb b/spec/functions/flatten_spec.rb
index 0b08f35fd..365535baa 100644
--- a/spec/functions/flatten_spec.rb
+++ b/spec/functions/flatten_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'flatten', :if => Puppet::Util::Package.versioncmp(Puppet.version, '5.5.0') < 0 do
+describe 'flatten', if: Puppet::Util::Package.versioncmp(Puppet.version, '5.5.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{Wrong number of arguments}) }
   it { is_expected.to run.with_params([], []).and_raise_error(Puppet::ParseError, %r{Wrong number of arguments}) }
diff --git a/spec/functions/floor_spec.rb b/spec/functions/floor_spec.rb
index e87a601f9..fe45142f0 100644
--- a/spec/functions/floor_spec.rb
+++ b/spec/functions/floor_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'floor', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
+describe 'floor', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{Wrong number of arguments}) }
   it { is_expected.to run.with_params('foo').and_raise_error(Puppet::ParseError, %r{Wrong argument type}) }
diff --git a/spec/functions/fqdn_rand_string_spec.rb b/spec/functions/fqdn_rand_string_spec.rb
index d5d3fbf57..1102b87f8 100644
--- a/spec/functions/fqdn_rand_string_spec.rb
+++ b/spec/functions/fqdn_rand_string_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'fqdn_rand_string' do
@@ -28,22 +30,22 @@
   end
 
   it 'considers the same host and same extra arguments to have the same random sequence' do
-    first_random = fqdn_rand_string(10, :extra_identifier => [1, 'same', 'host'])
-    second_random = fqdn_rand_string(10, :extra_identifier => [1, 'same', 'host'])
+    first_random = fqdn_rand_string(10, extra_identifier: [1, 'same', 'host'])
+    second_random = fqdn_rand_string(10, extra_identifier: [1, 'same', 'host'])
 
     expect(first_random).to eql(second_random)
   end
 
   it 'allows extra arguments to control the random value on a single host' do
-    first_random = fqdn_rand_string(10, :extra_identifier => [1, 'different', 'host'])
-    second_different_random = fqdn_rand_string(10, :extra_identifier => [2, 'different', 'host'])
+    first_random = fqdn_rand_string(10, extra_identifier: [1, 'different', 'host'])
+    second_different_random = fqdn_rand_string(10, extra_identifier: [2, 'different', 'host'])
 
     expect(first_random).not_to eql(second_different_random)
   end
 
   it 'returns different strings for different hosts' do
-    val1 = fqdn_rand_string(10, :host => 'first.host.com')
-    val2 = fqdn_rand_string(10, :host => 'second.host.com')
+    val1 = fqdn_rand_string(10, host: 'first.host.com')
+    val2 = fqdn_rand_string(10, host: 'second.host.com')
 
     expect(val1).not_to eql(val2)
   end
diff --git a/spec/functions/fqdn_rotate_spec.rb b/spec/functions/fqdn_rotate_spec.rb
index 7cd9f1d0b..8c68c3754 100644
--- a/spec/functions/fqdn_rotate_spec.rb
+++ b/spec/functions/fqdn_rotate_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'fqdn_rotate' do
@@ -17,26 +19,26 @@
   end
 
   it 'rotates a string to give the same results for one host' do
-    val1 = fqdn_rotate('abcdefg', :host => 'one')
-    val2 = fqdn_rotate('abcdefg', :host => 'one')
+    val1 = fqdn_rotate('abcdefg', host: 'one')
+    val2 = fqdn_rotate('abcdefg', host: 'one')
     expect(val1).to eq(val2)
   end
 
   it 'allows extra arguments to control the random rotation on a single host' do
-    val1 = fqdn_rotate('abcdefg', :extra_identifier => [1, 'different', 'host'])
-    val2 = fqdn_rotate('abcdefg', :extra_identifier => [2, 'different', 'host'])
+    val1 = fqdn_rotate('abcdefg', extra_identifier: [1, 'different', 'host'])
+    val2 = fqdn_rotate('abcdefg', extra_identifier: [2, 'different', 'host'])
     expect(val1).not_to eq(val2)
   end
 
   it 'considers the same host and same extra arguments to have the same random rotation' do
-    val1 = fqdn_rotate('abcdefg', :extra_identifier => [1, 'same', 'host'])
-    val2 = fqdn_rotate('abcdefg', :extra_identifier => [1, 'same', 'host'])
+    val1 = fqdn_rotate('abcdefg', extra_identifier: [1, 'same', 'host'])
+    val2 = fqdn_rotate('abcdefg', extra_identifier: [1, 'same', 'host'])
     expect(val1).to eq(val2)
   end
 
   it 'rotates a string to give different values on different hosts' do
-    val1 = fqdn_rotate('abcdefg', :host => 'one')
-    val2 = fqdn_rotate('abcdefg', :host => 'two')
+    val1 = fqdn_rotate('abcdefg', host: 'one')
+    val2 = fqdn_rotate('abcdefg', host: 'two')
     expect(val1).not_to eq(val2)
   end
 
diff --git a/spec/functions/fqdn_uuid_spec.rb b/spec/functions/fqdn_uuid_spec.rb
index 60df2e47c..a15751f6f 100644
--- a/spec/functions/fqdn_uuid_spec.rb
+++ b/spec/functions/fqdn_uuid_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'fqdn_uuid' do
diff --git a/spec/functions/get_module_path_spec.rb b/spec/functions/get_module_path_spec.rb
index dd31c6783..1d6d3be1f 100644
--- a/spec/functions/get_module_path_spec.rb
+++ b/spec/functions/get_module_path_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'get_module_path' do
diff --git a/spec/functions/getparam_spec.rb b/spec/functions/getparam_spec.rb
index 3a3cc274e..d79493b1d 100644
--- a/spec/functions/getparam_spec.rb
+++ b/spec/functions/getparam_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'getparam' do
diff --git a/spec/functions/getvar_spec.rb b/spec/functions/getvar_spec.rb
index 6c37baafa..94af5187b 100644
--- a/spec/functions/getvar_spec.rb
+++ b/spec/functions/getvar_spec.rb
@@ -1,14 +1,16 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'getvar' do
   it { is_expected.not_to eq(nil) }
 
-  describe 'before Puppet 6.0.0', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
+  describe 'before Puppet 6.0.0', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
     it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i) }
     it { is_expected.to run.with_params('one', 'two').and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i) }
   end
 
-  describe 'from Puppet 6.0.0', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') >= 0 do
+  describe 'from Puppet 6.0.0', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') >= 0 do
     it { is_expected.to run.with_params.and_raise_error(ArgumentError, %r{expects between 1 and 2 arguments, got none}i) }
     it { is_expected.to run.with_params('one', 'two').and_return('two') }
     it { is_expected.to run.with_params('one', 'two', 'three').and_raise_error(ArgumentError, %r{expects between 1 and 2 arguments, got 3}i) }
diff --git a/spec/functions/glob_spec.rb b/spec/functions/glob_spec.rb
index 209aca6c5..141ee7725 100644
--- a/spec/functions/glob_spec.rb
+++ b/spec/functions/glob_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'glob' do
diff --git a/spec/functions/grep_spec.rb b/spec/functions/grep_spec.rb
index 587e51b8d..b428d2daa 100644
--- a/spec/functions/grep_spec.rb
+++ b/spec/functions/grep_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'grep' do
diff --git a/spec/functions/has_interface_with_spec.rb b/spec/functions/has_interface_with_spec.rb
index 273ecb250..d55f58ead 100644
--- a/spec/functions/has_interface_with_spec.rb
+++ b/spec/functions/has_interface_with_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'has_interface_with' do
@@ -8,7 +10,7 @@
   # We need to mock out the Facts so we can specify how we expect this function
   # to behave on different platforms.
   context 'when on Mac OS X Systems' do
-    let(:facts) { { :interfaces => 'lo0,gif0,stf0,en1,p2p0,fw0,en0,vmnet1,vmnet8,utun0' } }
+    let(:facts) { { interfaces: 'lo0,gif0,stf0,en1,p2p0,fw0,en0,vmnet1,vmnet8,utun0' } }
 
     it { is_expected.to run.with_params('lo0').and_return(true) }
     it { is_expected.to run.with_params('lo').and_return(false) }
@@ -17,13 +19,13 @@
   context 'when on Linux Systems' do
     let(:facts) do
       {
-        :interfaces => 'eth0,lo',
-        :ipaddress => '10.0.0.1',
-        :ipaddress_lo => '127.0.0.1',
-        :ipaddress_eth0 => '10.0.0.1',
-        :muppet => 'kermit',
-        :muppet_lo => 'mspiggy',
-        :muppet_eth0 => 'kermit',
+        interfaces: 'eth0,lo',
+        ipaddress: '10.0.0.1',
+        ipaddress_lo: '127.0.0.1',
+        ipaddress_eth0: '10.0.0.1',
+        muppet: 'kermit',
+        muppet_lo: 'mspiggy',
+        muppet_eth0: 'kermit',
       }
     end
 
diff --git a/spec/functions/has_ip_address_spec.rb b/spec/functions/has_ip_address_spec.rb
index 8fbde610e..a30a5a5ab 100644
--- a/spec/functions/has_ip_address_spec.rb
+++ b/spec/functions/has_ip_address_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'has_ip_address' do
@@ -8,10 +10,10 @@
   context 'when on Linux Systems' do
     let(:facts) do
       {
-        :interfaces => 'eth0,lo',
-        :ipaddress => '10.0.0.1',
-        :ipaddress_lo => '127.0.0.1',
-        :ipaddress_eth0 => '10.0.0.1',
+        interfaces: 'eth0,lo',
+        ipaddress: '10.0.0.1',
+        ipaddress_lo: '127.0.0.1',
+        ipaddress_eth0: '10.0.0.1',
       }
     end
 
diff --git a/spec/functions/has_ip_network_spec.rb b/spec/functions/has_ip_network_spec.rb
index b9dbde910..3366757a1 100644
--- a/spec/functions/has_ip_network_spec.rb
+++ b/spec/functions/has_ip_network_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'has_ip_network' do
@@ -8,9 +10,9 @@
   context 'when on Linux Systems' do
     let(:facts) do
       {
-        :interfaces => 'eth0,lo',
-        :network_lo => '127.0.0.0',
-        :network_eth0 => '10.0.0.0',
+        interfaces: 'eth0,lo',
+        network_lo: '127.0.0.0',
+        network_eth0: '10.0.0.0',
       }
     end
 
diff --git a/spec/functions/has_key_spec.rb b/spec/functions/has_key_spec.rb
index 6abebba26..882356171 100644
--- a/spec/functions/has_key_spec.rb
+++ b/spec/functions/has_key_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'has_key' do
diff --git a/spec/functions/hash_spec.rb b/spec/functions/hash_spec.rb
index 2f78da4d3..1d678f9aa 100644
--- a/spec/functions/hash_spec.rb
+++ b/spec/functions/hash_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'hash' do
diff --git a/spec/functions/intersection_spec.rb b/spec/functions/intersection_spec.rb
index 0ea871fb1..2be738f77 100644
--- a/spec/functions/intersection_spec.rb
+++ b/spec/functions/intersection_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'intersection' do
diff --git a/spec/functions/ip_in_range_spec.rb b/spec/functions/ip_in_range_spec.rb
index 01d800ce6..78130de96 100644
--- a/spec/functions/ip_in_range_spec.rb
+++ b/spec/functions/ip_in_range_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'stdlib::ip_in_range' do
diff --git a/spec/functions/is_a_spec.rb b/spec/functions/is_a_spec.rb
index a5fe59089..fd510b277 100644
--- a/spec/functions/is_a_spec.rb
+++ b/spec/functions/is_a_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if ENV['FUTURE_PARSER'] == 'yes'
diff --git a/spec/functions/is_array_spec.rb b/spec/functions/is_array_spec.rb
index a24c2c70b..63561600f 100644
--- a/spec/functions/is_array_spec.rb
+++ b/spec/functions/is_array_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'is_array' do
diff --git a/spec/functions/is_bool_spec.rb b/spec/functions/is_bool_spec.rb
index 2a8112e67..7c5eddac2 100644
--- a/spec/functions/is_bool_spec.rb
+++ b/spec/functions/is_bool_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'is_bool' do
diff --git a/spec/functions/is_domain_name_spec.rb b/spec/functions/is_domain_name_spec.rb
index 16caa8ae0..a0221408c 100644
--- a/spec/functions/is_domain_name_spec.rb
+++ b/spec/functions/is_domain_name_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'is_domain_name' do
@@ -36,7 +38,7 @@
 
   # Values obtained from Facter values will be frozen strings
   # in newer versions of Facter:
-  it { is_expected.to run.with_params('www.example.com'.freeze).and_return(true) }
+  it { is_expected.to run.with_params('www.example.com').and_return(true) }
 
   describe 'top level domain must be alphabetic if there are multiple labels' do
     it { is_expected.to run.with_params('2com').and_return(true) }
diff --git a/spec/functions/is_email_address_spec.rb b/spec/functions/is_email_address_spec.rb
index 6c291e65b..c2aeaf3d5 100644
--- a/spec/functions/is_email_address_spec.rb
+++ b/spec/functions/is_email_address_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'is_email_address' do
diff --git a/spec/functions/is_float_spec.rb b/spec/functions/is_float_spec.rb
index a231446fa..e80dc4cea 100644
--- a/spec/functions/is_float_spec.rb
+++ b/spec/functions/is_float_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'is_float' do
diff --git a/spec/functions/is_function_available_spec.rb b/spec/functions/is_function_available_spec.rb
index 4de7f9ea8..3b3965427 100644
--- a/spec/functions/is_function_available_spec.rb
+++ b/spec/functions/is_function_available_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'is_function_available' do
diff --git a/spec/functions/is_hash_spec.rb b/spec/functions/is_hash_spec.rb
index e154be3e5..126535db6 100644
--- a/spec/functions/is_hash_spec.rb
+++ b/spec/functions/is_hash_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'is_hash' do
diff --git a/spec/functions/is_integer_spec.rb b/spec/functions/is_integer_spec.rb
index 7e9300568..1de12c9c5 100644
--- a/spec/functions/is_integer_spec.rb
+++ b/spec/functions/is_integer_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'is_integer' do
diff --git a/spec/functions/is_ip_address_spec.rb b/spec/functions/is_ip_address_spec.rb
index 86f3cf892..208d6459d 100644
--- a/spec/functions/is_ip_address_spec.rb
+++ b/spec/functions/is_ip_address_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'is_ip_address' do
diff --git a/spec/functions/is_ipv4_address_spec.rb b/spec/functions/is_ipv4_address_spec.rb
index fddd351da..42986836f 100644
--- a/spec/functions/is_ipv4_address_spec.rb
+++ b/spec/functions/is_ipv4_address_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'is_ipv4_address' do
@@ -12,7 +14,7 @@
     it { is_expected.to run.with_params(value).and_return(false) }
   end
 
-  context 'Checking for deprecation warning', :if => Puppet.version.to_f < 4.0 do
+  context 'Checking for deprecation warning', if: Puppet.version.to_f < 4.0 do
     after(:each) do
       ENV.delete('STDLIB_LOG_DEPRECATIONS')
     end
diff --git a/spec/functions/is_ipv6_address_spec.rb b/spec/functions/is_ipv6_address_spec.rb
index c8bad5128..39171336d 100644
--- a/spec/functions/is_ipv6_address_spec.rb
+++ b/spec/functions/is_ipv6_address_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'is_ipv6_address' do
@@ -11,7 +13,7 @@
   it { is_expected.to run.with_params('one').and_return(false) }
   it { is_expected.to run.with_params('2001:0db8:85a3:0000:0000:8a2e:0370:7334:ggg').and_return(false) }
 
-  context 'Checking for deprecation warning', :if => Puppet.version.to_f < 4.0 do
+  context 'Checking for deprecation warning', if: Puppet.version.to_f < 4.0 do
     after(:each) do
       ENV.delete('STDLIB_LOG_DEPRECATIONS')
     end
diff --git a/spec/functions/is_mac_address_spec.rb b/spec/functions/is_mac_address_spec.rb
index 2f6602b7b..3312bb398 100644
--- a/spec/functions/is_mac_address_spec.rb
+++ b/spec/functions/is_mac_address_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'is_mac_address' do
diff --git a/spec/functions/is_numeric_spec.rb b/spec/functions/is_numeric_spec.rb
index 6125ecdbb..9c9d9dbf9 100644
--- a/spec/functions/is_numeric_spec.rb
+++ b/spec/functions/is_numeric_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'is_numeric' do
diff --git a/spec/functions/is_string_spec.rb b/spec/functions/is_string_spec.rb
index 946305fb9..9a221501c 100644
--- a/spec/functions/is_string_spec.rb
+++ b/spec/functions/is_string_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'is_string' do
diff --git a/spec/functions/join_keys_to_values_spec.rb b/spec/functions/join_keys_to_values_spec.rb
index 97674ef9e..5d9942e0e 100644
--- a/spec/functions/join_keys_to_values_spec.rb
+++ b/spec/functions/join_keys_to_values_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'join_keys_to_values' do
diff --git a/spec/functions/join_spec.rb b/spec/functions/join_spec.rb
index 264ebc945..2175248ab 100644
--- a/spec/functions/join_spec.rb
+++ b/spec/functions/join_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'join', :if => Puppet::Util::Package.versioncmp(Puppet.version, '5.5.0') < 0 do
+describe 'join', if: Puppet::Util::Package.versioncmp(Puppet.version, '5.5.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i) }
   it {
diff --git a/spec/functions/keys_spec.rb b/spec/functions/keys_spec.rb
index 2b538a018..befc834cd 100644
--- a/spec/functions/keys_spec.rb
+++ b/spec/functions/keys_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'keys', :if => Puppet::Util::Package.versioncmp(Puppet.version, '5.5.0') < 0 do
+describe 'keys', if: Puppet::Util::Package.versioncmp(Puppet.version, '5.5.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i) }
   it {
diff --git a/spec/functions/length_spec.rb b/spec/functions/length_spec.rb
index 72ebb6205..183a31c4a 100644
--- a/spec/functions/length_spec.rb
+++ b/spec/functions/length_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'length', :if => Puppet::Util::Package.versioncmp(Puppet.version, '5.5.0') < 0 do
+describe 'length', if: Puppet::Util::Package.versioncmp(Puppet.version, '5.5.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(ArgumentError, %r{'length' expects 1 argument, got none}) }
   it { is_expected.to run.with_params([], 'extra').and_raise_error(ArgumentError, %r{'length' expects 1 argument, got 2}) }
diff --git a/spec/functions/load_module_metadata_spec.rb b/spec/functions/load_module_metadata_spec.rb
index 45eaa7ee9..caca5e751 100644
--- a/spec/functions/load_module_metadata_spec.rb
+++ b/spec/functions/load_module_metadata_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'load_module_metadata' do
@@ -9,15 +11,15 @@
     before :each do
       # In Puppet 7, there are two prior calls to File.read prior to the responses we want to mock
       allow(File).to receive(:read).with(anything, anything).and_call_original
-      allow(File).to receive(:read).with(%r{\/(stdlib|test)\/metadata.json}, :encoding => 'utf-8').and_return('{"name": "puppetlabs-stdlib"}')
+      allow(File).to receive(:read).with(%r{\/(stdlib|test)\/metadata.json}, encoding: 'utf-8').and_return('{"name": "puppetlabs-stdlib"}')
       allow(File).to receive(:read).with(%r{\/(stdlib|test)\/metadata.json}).and_return('{"name": "puppetlabs-stdlib"}')
       # Additional modules used by litmus which are identified while running these dues to being in fixtures
-      allow(File).to receive(:read).with(%r{\/(provision|puppet_agent|facts)\/metadata.json}, :encoding => 'utf-8')
+      allow(File).to receive(:read).with(%r{\/(provision|puppet_agent|facts)\/metadata.json}, encoding: 'utf-8')
     end
 
     context 'when calling with valid utf8 and double byte character arguments' do
       before :each do
-        allow(File).to receive(:read).with(%r{\/(stdlib|test)\/metadata.json}, :encoding => 'utf-8').and_return('{"ĭďèʼnţĩƒіểя": "ċơņťęאּť ỡƒ ţħíš -
+        allow(File).to receive(:read).with(%r{\/(stdlib|test)\/metadata.json}, encoding: 'utf-8').and_return('{"ĭďèʼnţĩƒіểя": "ċơņťęאּť ỡƒ ţħíš -
 この文字"}')
         allow(File).to receive(:read).with(%r{\/(stdlib|test)\/metadata.json}).and_return('{"ĭďèʼnţĩƒіểя": "ċơņťęאּť ỡƒ ţħíš -
 この文字"}')
diff --git a/spec/functions/loadjson_spec.rb b/spec/functions/loadjson_spec.rb
index 48d79fbdf..c45123cc4 100644
--- a/spec/functions/loadjson_spec.rb
+++ b/spec/functions/loadjson_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'loadjson' do
@@ -8,10 +10,10 @@
     before :each do
       # In Puppet 7, there are two prior calls to File.read prior to the responses we want to mock
       allow(File).to receive(:read).with(anything, anything).and_call_original
-      allow(File).to receive(:read).with(%r{\/(stdlib|test)\/metadata.json}, :encoding => 'utf-8').and_return('{"name": "puppetlabs-stdlib"}')
+      allow(File).to receive(:read).with(%r{\/(stdlib|test)\/metadata.json}, encoding: 'utf-8').and_return('{"name": "puppetlabs-stdlib"}')
       allow(File).to receive(:read).with(%r{\/(stdlib|test)\/metadata.json}).and_return('{"name": "puppetlabs-stdlib"}')
       # Additional modules used by litmus which are identified while running these dues to being in fixtures
-      allow(File).to receive(:read).with(%r{\/(provision|puppet_agent|facts)\/metadata.json}, :encoding => 'utf-8')
+      allow(File).to receive(:read).with(%r{\/(provision|puppet_agent|facts)\/metadata.json}, encoding: 'utf-8')
     end
 
     context 'when a non-existing file is specified' do
@@ -74,7 +76,7 @@
       let(:filename) do
         'https://example.local/myhash.json'
       end
-      let(:basic_auth) { { :http_basic_authentication => ['', ''] } }
+      let(:basic_auth) { { http_basic_authentication: ['', ''] } }
       let(:data) { { 'key' => 'value', 'ķęŷ' => 'νậŀųề', 'キー' => '値' } }
       let(:json) { '{"key":"value", {"ķęŷ":"νậŀųề" }, {"キー":"値" }' }
 
@@ -90,7 +92,7 @@
         'https://user1:pass1@example.local/myhash.json'
       end
       let(:url_no_auth) { 'https://example.local/myhash.json' }
-      let(:basic_auth) { { :http_basic_authentication => ['user1', 'pass1'] } }
+      let(:basic_auth) { { http_basic_authentication: ['user1', 'pass1'] } }
       let(:data) { { 'key' => 'value', 'ķęŷ' => 'νậŀųề', 'キー' => '値' } }
       let(:json) { '{"key":"value", {"ķęŷ":"νậŀųề" }, {"キー":"値" }' }
 
@@ -106,7 +108,7 @@
         'https://user1@example.local/myhash.json'
       end
       let(:url_no_auth) { 'https://example.local/myhash.json' }
-      let(:basic_auth) { { :http_basic_authentication => ['user1', ''] } }
+      let(:basic_auth) { { http_basic_authentication: ['user1', ''] } }
       let(:data) { { 'key' => 'value', 'ķęŷ' => 'νậŀųề', 'キー' => '値' } }
       let(:json) { '{"key":"value", {"ķęŷ":"νậŀųề" }, {"キー":"値" }' }
 
@@ -121,7 +123,7 @@
       let(:filename) do
         'https://example.local/myhash.json'
       end
-      let(:basic_auth) { { :http_basic_authentication => ['', ''] } }
+      let(:basic_auth) { { http_basic_authentication: ['', ''] } }
       let(:json) { ',;{"key":"value"}' }
 
       it {
@@ -135,7 +137,7 @@
       let(:filename) do
         'https://example.local/myhash.json'
       end
-      let(:basic_auth) { { :http_basic_authentication => ['', ''] } }
+      let(:basic_auth) { { http_basic_authentication: ['', ''] } }
 
       it {
         expect(OpenURI).to receive(:open_uri).with(filename, basic_auth).and_raise OpenURI::HTTPError, '404 File not Found'
diff --git a/spec/functions/loadyaml_spec.rb b/spec/functions/loadyaml_spec.rb
index d71fd32bc..4de82ec35 100644
--- a/spec/functions/loadyaml_spec.rb
+++ b/spec/functions/loadyaml_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'loadyaml' do
@@ -37,7 +39,7 @@
 
   context 'when an existing URL is specified' do
     let(:filename) { 'https://example.local/myhash.yaml' }
-    let(:basic_auth) { { :http_basic_authentication => ['', ''] } }
+    let(:basic_auth) { { http_basic_authentication: ['', ''] } }
     let(:yaml) { 'Dummy YAML' }
     let(:data) { { 'key' => 'value', 'ķęŷ' => 'νậŀųề', 'キー' => '値' } }
 
@@ -51,7 +53,7 @@
   context 'when an existing URL (with username and password) is specified' do
     let(:filename) { 'https://user1:pass1@example.local/myhash.yaml' }
     let(:url_no_auth) { 'https://example.local/myhash.yaml' }
-    let(:basic_auth) { { :http_basic_authentication => ['user1', 'pass1'] } }
+    let(:basic_auth) { { http_basic_authentication: ['user1', 'pass1'] } }
     let(:yaml) { 'Dummy YAML' }
     let(:data) { { 'key' => 'value', 'ķęŷ' => 'νậŀųề', 'キー' => '値' } }
 
@@ -65,7 +67,7 @@
   context 'when an existing URL (with username) is specified' do
     let(:filename) { 'https://user1@example.local/myhash.yaml' }
     let(:url_no_auth) { 'https://example.local/myhash.yaml' }
-    let(:basic_auth) { { :http_basic_authentication => ['user1', ''] } }
+    let(:basic_auth) { { http_basic_authentication: ['user1', ''] } }
     let(:yaml) { 'Dummy YAML' }
     let(:data) { { 'key' => 'value', 'ķęŷ' => 'νậŀųề', 'キー' => '値' } }
 
@@ -78,7 +80,7 @@
 
   context 'when an existing URL could not be parsed, with default specified' do
     let(:filename) { 'https://example.local/myhash.yaml' }
-    let(:basic_auth) { { :http_basic_authentication => ['', ''] } }
+    let(:basic_auth) { { http_basic_authentication: ['', ''] } }
     let(:yaml) { 'Dummy YAML' }
 
     it {
@@ -90,7 +92,7 @@
 
   context 'when a URL does not exist, with default specified' do
     let(:filename) { 'https://example.local/myhash.yaml' }
-    let(:basic_auth) { { :http_basic_authentication => ['', ''] } }
+    let(:basic_auth) { { http_basic_authentication: ['', ''] } }
     let(:yaml) { 'Dummy YAML' }
 
     it {
diff --git a/spec/functions/lstrip_spec.rb b/spec/functions/lstrip_spec.rb
index ab2f6f0c4..ee822232d 100644
--- a/spec/functions/lstrip_spec.rb
+++ b/spec/functions/lstrip_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'lstrip', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
+describe 'lstrip', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i) }
   it {
diff --git a/spec/functions/max_spec.rb b/spec/functions/max_spec.rb
index 88879d19b..b3868d798 100644
--- a/spec/functions/max_spec.rb
+++ b/spec/functions/max_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'max', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
+describe 'max', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i) }
   it { is_expected.to run.with_params(1).and_return(1) }
diff --git a/spec/functions/member_spec.rb b/spec/functions/member_spec.rb
index 861f6e5f8..f4a5bc216 100644
--- a/spec/functions/member_spec.rb
+++ b/spec/functions/member_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'member' do
diff --git a/spec/functions/merge_spec.rb b/spec/functions/merge_spec.rb
index 7bffaab85..da3e2e7b7 100644
--- a/spec/functions/merge_spec.rb
+++ b/spec/functions/merge_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'merge' do
diff --git a/spec/functions/min_spec.rb b/spec/functions/min_spec.rb
index 34efb67b5..4b730127b 100644
--- a/spec/functions/min_spec.rb
+++ b/spec/functions/min_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'min', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
+describe 'min', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i) }
   it { is_expected.to run.with_params(1).and_return(1) }
diff --git a/spec/functions/num2bool_spec.rb b/spec/functions/num2bool_spec.rb
index 786fd9757..bedfb64a9 100644
--- a/spec/functions/num2bool_spec.rb
+++ b/spec/functions/num2bool_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'num2bool' do
diff --git a/spec/functions/os_version_gte_spec.rb b/spec/functions/os_version_gte_spec.rb
index 98ccc4428..5de58384f 100644
--- a/spec/functions/os_version_gte_spec.rb
+++ b/spec/functions/os_version_gte_spec.rb
@@ -1,11 +1,13 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'os_version_gte' do
   context 'on Debian 9' do
     let(:facts) do
       {
-        :operatingsystem => 'Debian',
-        :operatingsystemmajrelease => '9',
+        operatingsystem: 'Debian',
+        operatingsystemmajrelease: '9',
       }
     end
 
@@ -19,8 +21,8 @@
   context 'on Ubuntu 16.04' do
     let(:facts) do
       {
-        :operatingsystem => 'Ubuntu',
-        :operatingsystemmajrelease => '16.04',
+        operatingsystem: 'Ubuntu',
+        operatingsystemmajrelease: '16.04',
       }
     end
 
@@ -34,8 +36,8 @@
   context 'with invalid params' do
     let(:facts) do
       {
-        :operatingsystem => 'Ubuntu',
-        :operatingsystemmajrelease => '16.04',
+        operatingsystem: 'Ubuntu',
+        operatingsystemmajrelease: '16.04',
       }
     end
 
diff --git a/spec/functions/parsehocon_spec.rb b/spec/functions/parsehocon_spec.rb
index 4eae3abd3..623a7da5f 100644
--- a/spec/functions/parsehocon_spec.rb
+++ b/spec/functions/parsehocon_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'parsehocon' do
diff --git a/spec/functions/parsejson_spec.rb b/spec/functions/parsejson_spec.rb
index d03858479..bc8c2f70c 100644
--- a/spec/functions/parsejson_spec.rb
+++ b/spec/functions/parsejson_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'parsejson' do
@@ -57,7 +59,7 @@
     end
 
     ['', 1, 1.2, nil, true, false, [], {}, :yaml].each do |value|
-      it "should return the default value for an incorrect #{value.inspect} (#{value.class}) parameter" do
+      it "returns the default value for an incorrect #{value.inspect} (#{value.class}) parameter" do
         is_expected.to run.with_params(value, 'default_value')
                           .and_return('default_value')
       end
diff --git a/spec/functions/parseyaml_spec.rb b/spec/functions/parseyaml_spec.rb
index 62e18a324..f4ce41993 100644
--- a/spec/functions/parseyaml_spec.rb
+++ b/spec/functions/parseyaml_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'parseyaml' do
@@ -56,7 +58,7 @@
     end
 
     [1, 1.2, nil, true, false, [], {}, :yaml].each do |value|
-      it "should return the default value for an incorrect #{value.inspect} (#{value.class}) parameter" do
+      it "returns the default value for an incorrect #{value.inspect} (#{value.class}) parameter" do
         is_expected.to run.with_params(value, 'default_value')
                           .and_return('default_value')
       end
@@ -64,7 +66,7 @@
 
     context 'when running on modern rubies' do
       ['---', '...', '*8', ''].each do |value|
-        it "should return the default value for an incorrect #{value.inspect} string parameter" do
+        it "returns the default value for an incorrect #{value.inspect} string parameter" do
           is_expected.to run.with_params(value, 'default_value')
                             .and_return('default_value')
         end
diff --git a/spec/functions/pick_default_spec.rb b/spec/functions/pick_default_spec.rb
index 29d789658..6e32c4010 100644
--- a/spec/functions/pick_default_spec.rb
+++ b/spec/functions/pick_default_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'pick_default' do
diff --git a/spec/functions/pick_spec.rb b/spec/functions/pick_spec.rb
index d8c6fbff0..741e0b798 100644
--- a/spec/functions/pick_spec.rb
+++ b/spec/functions/pick_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'pick' do
diff --git a/spec/functions/prefix_spec.rb b/spec/functions/prefix_spec.rb
index 1b771d916..7353857d7 100644
--- a/spec/functions/prefix_spec.rb
+++ b/spec/functions/prefix_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'prefix' do
diff --git a/spec/functions/private_spec.rb b/spec/functions/private_spec.rb
index cfd78c4e8..e0f266701 100644
--- a/spec/functions/private_spec.rb
+++ b/spec/functions/private_spec.rb
@@ -1,11 +1,13 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'private' do
   it 'issues a warning' do
-    expect(scope).to receive(:warning).with("private() DEPRECATED: This function will cease to function on Puppet 4; please use assert_private() before upgrading to puppet 4 for backwards-compatibility, or migrate to the new parser's typing system.") # rubocop:disable Metrics/LineLength : unable to cut line to required length
+    expect(scope).to receive(:warning).with("private() DEPRECATED: This function will cease to function on Puppet 4; please use assert_private() before upgrading to puppet 4 for backwards-compatibility, or migrate to the new parser's typing system.") # rubocop:disable Layout/LineLength : unable to cut line to required length
     begin
       subject.execute
-    rescue # rubocop:disable Lint/HandleExceptions
+    rescue
       # ignore this
     end
   end
diff --git a/spec/functions/pw_hash_spec.rb b/spec/functions/pw_hash_spec.rb
index 31010d621..ac7d0973f 100644
--- a/spec/functions/pw_hash_spec.rb
+++ b/spec/functions/pw_hash_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'pw_hash' do
diff --git a/spec/functions/range_spec.rb b/spec/functions/range_spec.rb
index 7b9e6d43c..f6d9a2f6f 100644
--- a/spec/functions/range_spec.rb
+++ b/spec/functions/range_spec.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'range' do
   it { is_expected.not_to eq(nil) }
 
-  describe 'signature validation in puppet3', :unless => RSpec.configuration.puppet_future do
+  describe 'signature validation in puppet3', unless: RSpec.configuration.puppet_future do
     it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i) }
     it {
       pending('Current implementation ignores parameters after the third.')
@@ -13,7 +15,7 @@
     it { is_expected.to run.with_params('').and_raise_error(Puppet::ParseError, %r{Unknown range format}i) }
   end
 
-  describe 'signature validation in puppet4', :if => RSpec.configuration.puppet_future do
+  describe 'signature validation in puppet4', if: RSpec.configuration.puppet_future do
     it {
       pending 'the puppet 4 implementation'
       is_expected.to run.with_params.and_raise_error(ArgumentError)
@@ -142,15 +144,15 @@
 
   describe 'when passing mixed arguments as bounds' do
     it {
-      pending('these bounds should not be allowed as ruby will OOM hard. e.g. `(\'host0\'..\'hosta\').to_a` has 3239930 elements on ruby 1.9, adding more \'0\'s and \'a\'s increases that exponentially') # rubocop:disable Metrics/LineLength : unable to cut line to required length
+      pending('these bounds should not be allowed as ruby will OOM hard. e.g. `(\'host0\'..\'hosta\').to_a` has 3239930 elements on ruby 1.9, adding more \'0\'s and \'a\'s increases that exponentially') # rubocop:disable Layout/LineLength : unable to cut line to required length
       is_expected.to run.with_params('0', 'a').and_raise_error(Puppet::ParseError, %r{cannot interpolate between numeric and non-numeric bounds})
     }
     it {
-      pending('these bounds should not be allowed as ruby will OOM hard. e.g. `(\'host0\'..\'hosta\').to_a` has 3239930 elements on ruby 1.9, adding more \'0\'s and \'a\'s increases that exponentially') # rubocop:disable Metrics/LineLength : unable to cut line to required length
+      pending('these bounds should not be allowed as ruby will OOM hard. e.g. `(\'host0\'..\'hosta\').to_a` has 3239930 elements on ruby 1.9, adding more \'0\'s and \'a\'s increases that exponentially') # rubocop:disable Layout/LineLength : unable to cut line to required length
       is_expected.to run.with_params(0, 'a').and_raise_error(Puppet::ParseError, %r{cannot interpolate between numeric and non-numeric bounds})
     }
     it {
-      pending('these bounds should not be allowed as ruby will OOM hard. e.g. `(\'host0\'..\'hosta\').to_a` has 3239930 elements on ruby 1.9, adding more \'0\'s and \'a\'s increases that exponentially') # rubocop:disable Metrics/LineLength : unable to cut line to required length
+      pending('these bounds should not be allowed as ruby will OOM hard. e.g. `(\'host0\'..\'hosta\').to_a` has 3239930 elements on ruby 1.9, adding more \'0\'s and \'a\'s increases that exponentially') # rubocop:disable Layout/LineLength : unable to cut line to required length
       is_expected.to run.with_params('h0', 'ha').and_raise_error(Puppet::ParseError, %r{cannot interpolate between numeric and non-numeric bounds})
     }
   end
diff --git a/spec/functions/regexpescape_spec.rb b/spec/functions/regexpescape_spec.rb
index b60cb992b..b8d66cff2 100644
--- a/spec/functions/regexpescape_spec.rb
+++ b/spec/functions/regexpescape_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'regexpescape' do
diff --git a/spec/functions/reject_spec.rb b/spec/functions/reject_spec.rb
index b7f6d2ed7..efc3b693e 100644
--- a/spec/functions/reject_spec.rb
+++ b/spec/functions/reject_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'reject' do
diff --git a/spec/functions/reverse_spec.rb b/spec/functions/reverse_spec.rb
index 93a4e2a8f..cad7086d8 100644
--- a/spec/functions/reverse_spec.rb
+++ b/spec/functions/reverse_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'reverse' do
diff --git a/spec/functions/round_spec.rb b/spec/functions/round_spec.rb
index fa8ebd5fa..7b3baf1b3 100644
--- a/spec/functions/round_spec.rb
+++ b/spec/functions/round_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'round', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
+describe 'round', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params(34.3).and_return(34) }
   it { is_expected.to run.with_params(-34.3).and_return(-34) }
diff --git a/spec/functions/rstrip_spec.rb b/spec/functions/rstrip_spec.rb
index 60776d895..251fb6677 100644
--- a/spec/functions/rstrip_spec.rb
+++ b/spec/functions/rstrip_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'rstrip', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
+describe 'rstrip', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i) }
   it {
diff --git a/spec/functions/seeded_rand_spec.rb b/spec/functions/seeded_rand_spec.rb
index 0bd8d6d28..9ee3b867b 100644
--- a/spec/functions/seeded_rand_spec.rb
+++ b/spec/functions/seeded_rand_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'seeded_rand' do
@@ -35,8 +37,8 @@
   end
 
   it 'does not return different values for different hosts' do
-    val1 = seeded_rand(1000, 'foo', :host => 'first.host.com')
-    val2 = seeded_rand(1000, 'foo', :host => 'second.host.com')
+    val1 = seeded_rand(1000, 'foo', host: 'first.host.com')
+    val2 = seeded_rand(1000, 'foo', host: 'second.host.com')
 
     expect(val1).to eql(val2)
   end
diff --git a/spec/functions/seeded_rand_string_spec.rb b/spec/functions/seeded_rand_string_spec.rb
index 9083feb1b..66a5a16b9 100644
--- a/spec/functions/seeded_rand_string_spec.rb
+++ b/spec/functions/seeded_rand_string_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'seeded_rand_string' do
diff --git a/spec/functions/shell_escape_spec.rb b/spec/functions/shell_escape_spec.rb
index 1e86d7c1d..4b1723777 100644
--- a/spec/functions/shell_escape_spec.rb
+++ b/spec/functions/shell_escape_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'shell_escape' do
diff --git a/spec/functions/shell_join_spec.rb b/spec/functions/shell_join_spec.rb
index 8c4ba1ec5..f29bf53ce 100644
--- a/spec/functions/shell_join_spec.rb
+++ b/spec/functions/shell_join_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'shell_join' do
diff --git a/spec/functions/shell_split_spec.rb b/spec/functions/shell_split_spec.rb
index 4a72cab2f..82d41f138 100644
--- a/spec/functions/shell_split_spec.rb
+++ b/spec/functions/shell_split_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'shell_split' do
diff --git a/spec/functions/shuffle_spec.rb b/spec/functions/shuffle_spec.rb
index a3b68a856..0e4b1e578 100644
--- a/spec/functions/shuffle_spec.rb
+++ b/spec/functions/shuffle_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'shuffle' do
diff --git a/spec/functions/size_spec.rb b/spec/functions/size_spec.rb
index 69fdff2f8..386f91249 100644
--- a/spec/functions/size_spec.rb
+++ b/spec/functions/size_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'size', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
+describe 'size', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i) }
   it {
@@ -28,7 +30,7 @@
   it { is_expected.to run.with_params('万').and_return(1) }
   it { is_expected.to run.with_params('āβćđ').and_return(4) }
 
-  context 'when using a class extending String', :unless => Puppet::Util::Package.versioncmp(Puppet.version, '5.5.7') == 0 do
+  context 'when using a class extending String', unless: Puppet::Util::Package.versioncmp(Puppet.version, '5.5.7') == 0 do
     it 'calls its size method' do
       value = AlsoString.new('asdfghjkl')
       expect(value).to receive(:size).and_return('foo')
diff --git a/spec/functions/sort_spec.rb b/spec/functions/sort_spec.rb
index 0e6e8e6e6..3387e7503 100644
--- a/spec/functions/sort_spec.rb
+++ b/spec/functions/sort_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'sort', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
+describe 'sort', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
   describe 'signature validation' do
     it { is_expected.not_to eq(nil) }
     it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i) }
diff --git a/spec/functions/sprintf_hash_spec.rb b/spec/functions/sprintf_hash_spec.rb
index 4bead465c..4e72d3da8 100644
--- a/spec/functions/sprintf_hash_spec.rb
+++ b/spec/functions/sprintf_hash_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'sprintf_hash' do
diff --git a/spec/functions/squeeze_spec.rb b/spec/functions/squeeze_spec.rb
index ee144b308..281846171 100644
--- a/spec/functions/squeeze_spec.rb
+++ b/spec/functions/squeeze_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'squeeze' do
diff --git a/spec/functions/startswith_spec.rb b/spec/functions/startswith_spec.rb
index a25919230..a3478bb39 100644
--- a/spec/functions/startswith_spec.rb
+++ b/spec/functions/startswith_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'stdlib::start_with' do
diff --git a/spec/functions/stdlib_ensure_spec.rb b/spec/functions/stdlib_ensure_spec.rb
index ebdcb9cb6..8a110b89b 100644
--- a/spec/functions/stdlib_ensure_spec.rb
+++ b/spec/functions/stdlib_ensure_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'stdlib::ensure' do
diff --git a/spec/functions/str2bool_spec.rb b/spec/functions/str2bool_spec.rb
index fe43c4c24..070955ceb 100644
--- a/spec/functions/str2bool_spec.rb
+++ b/spec/functions/str2bool_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'str2bool' do
diff --git a/spec/functions/str2saltedpbkdf2_spec.rb b/spec/functions/str2saltedpbkdf2_spec.rb
index 48dcdc48e..c46df7a6d 100644
--- a/spec/functions/str2saltedpbkdf2_spec.rb
+++ b/spec/functions/str2saltedpbkdf2_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'str2saltedpbkdf2' do
@@ -11,13 +13,13 @@
   it { is_expected.to run.with_params('Pa55w0rd', 'Using s0m3 s@lt', 1).and_raise_error(ArgumentError, %r{third argument must be between 40,000 and 70,000}) }
 
   context 'when running with "Pa55w0rd", "Using s0m3 s@lt",and "50000" as params' do
-    # rubocop:disable Metrics/LineLength
+    # rubocop:disable Layout/LineLength
     it {
       is_expected.to run.with_params('Pa55w0rd', 'Using s0m3 s@lt', 50_000)
                         .and_return('password_hex' => '3577f79f7d2e73df1cf1eecc36da16fffcd3650126d79e797a8b227492d13de4cdd0656933b43118b7361692f755e5b3c1e0536f826d12442400f3467bcc8fb4ac2235d5648b0f1b0906d0712aecd265834319b5a42e98af2ced81597fd78d1ac916f6eff6122c3577bb120a9f534e2a5c9a58c7d1209e3914c967c6a467b594',
                                     'salt_hex'     => '5573696e672073306d332073406c74',
                                     'iterations'   => 50_000)
     }
-    # rubocop:enable Metrics/LineLength
+    # rubocop:enable Layout/LineLength
   end
 end
diff --git a/spec/functions/str2saltedsha512_spec.rb b/spec/functions/str2saltedsha512_spec.rb
index e7513c97b..ae50ea76e 100644
--- a/spec/functions/str2saltedsha512_spec.rb
+++ b/spec/functions/str2saltedsha512_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'str2saltedsha512' do
diff --git a/spec/functions/strip_spec.rb b/spec/functions/strip_spec.rb
index 28f8d86f2..1328baa5e 100644
--- a/spec/functions/strip_spec.rb
+++ b/spec/functions/strip_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'strip', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
+describe 'strip', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i) }
   it {
diff --git a/spec/functions/suffix_spec.rb b/spec/functions/suffix_spec.rb
index 802d598f2..0c12100be 100644
--- a/spec/functions/suffix_spec.rb
+++ b/spec/functions/suffix_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'suffix' do
diff --git a/spec/functions/swapcase_spec.rb b/spec/functions/swapcase_spec.rb
index 837014060..49d2117de 100644
--- a/spec/functions/swapcase_spec.rb
+++ b/spec/functions/swapcase_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'swapcase' do
diff --git a/spec/functions/time_spec.rb b/spec/functions/time_spec.rb
index 239e2ab09..181bb056e 100644
--- a/spec/functions/time_spec.rb
+++ b/spec/functions/time_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'time' do
diff --git a/spec/functions/to_bytes_spec.rb b/spec/functions/to_bytes_spec.rb
index f3efd90f0..71ee00fe7 100644
--- a/spec/functions/to_bytes_spec.rb
+++ b/spec/functions/to_bytes_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'to_bytes' do
diff --git a/spec/functions/to_json_pretty_spec.rb b/spec/functions/to_json_pretty_spec.rb
index 6f1b3fa57..071e88a9b 100644
--- a/spec/functions/to_json_pretty_spec.rb
+++ b/spec/functions/to_json_pretty_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'to_json_pretty' do
@@ -9,7 +11,7 @@
   it { is_expected.to run.with_params('key' => 'value').and_return("{\n  \"key\": \"value\"\n}\n") }
   it {
     is_expected.to run.with_params('one' => { 'oneA' => 'A', 'oneB' => { 'oneB1' => '1', 'oneB2' => '2' } }, 'two' => ['twoA', 'twoB'])
-                      .and_return("{\n  \"one\": {\n    \"oneA\": \"A\",\n    \"oneB\": {\n      \"oneB1\": \"1\",\n      \"oneB2\": \"2\"\n    }\n  },\n  \"two\": [\n    \"twoA\",\n    \"twoB\"\n  ]\n}\n") # rubocop:disable Metrics/LineLength : Unable to reduce line to required length
+                      .and_return("{\n  \"one\": {\n    \"oneA\": \"A\",\n    \"oneB\": {\n      \"oneB1\": \"1\",\n      \"oneB2\": \"2\"\n    }\n  },\n  \"two\": [\n    \"twoA\",\n    \"twoB\"\n  ]\n}\n") # rubocop:disable Layout/LineLength : Unable to reduce line to required length
   }
   it { is_expected.to run.with_params({ 'one' => '1', 'two' => nil }, true).and_return("{\n  \"one\": \"1\"\n}\n") }
   it { is_expected.to run.with_params(['one', 'two', nil, 'three'], true).and_return("[\n  \"one\",\n  \"two\",\n  \"three\"\n]\n") }
diff --git a/spec/functions/to_json_spec.rb b/spec/functions/to_json_spec.rb
index 83bb8866a..32184d6dd 100644
--- a/spec/functions/to_json_spec.rb
+++ b/spec/functions/to_json_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'to_json' do
diff --git a/spec/functions/to_yaml_spec.rb b/spec/functions/to_yaml_spec.rb
index eecb8a4e2..98985c404 100644
--- a/spec/functions/to_yaml_spec.rb
+++ b/spec/functions/to_yaml_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'to_yaml' do
@@ -18,5 +20,5 @@
   it { is_expected.to run.with_params('‰').and_return("--- \"‰\"\n") }
   it { is_expected.to run.with_params('∇').and_return("--- \"∇\"\n") }
 
-  it { is_expected.to run.with_params({ 'foo' => { 'bar' => true, 'baz' => false } }, :indentation => 4).and_return("---\nfoo:\n    bar: true\n    baz: false\n") }
+  it { is_expected.to run.with_params({ 'foo' => { 'bar' => true, 'baz' => false } }, indentation: 4).and_return("---\nfoo:\n    bar: true\n    baz: false\n") }
 end
diff --git a/spec/functions/try_get_value_spec.rb b/spec/functions/try_get_value_spec.rb
index 6fe9c10fd..2b9b96c65 100644
--- a/spec/functions/try_get_value_spec.rb
+++ b/spec/functions/try_get_value_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'try_get_value' do
diff --git a/spec/functions/type3x_spec.rb b/spec/functions/type3x_spec.rb
index a53362d72..750752628 100644
--- a/spec/functions/type3x_spec.rb
+++ b/spec/functions/type3x_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'type3x' do
diff --git a/spec/functions/type_of_spec.rb b/spec/functions/type_of_spec.rb
index 4f55b2c03..243b17355 100644
--- a/spec/functions/type_of_spec.rb
+++ b/spec/functions/type_of_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if ENV['FUTURE_PARSER'] == 'yes'
diff --git a/spec/functions/type_spec.rb b/spec/functions/type_spec.rb
index e1d687bf4..8a0f2a11e 100644
--- a/spec/functions/type_spec.rb
+++ b/spec/functions/type_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'type' do
@@ -6,7 +8,7 @@
   end
 
   it 'gives a deprecation warning when called' do
-    expect(scope).to receive(:warning).with("type() DEPRECATED: This function will cease to function on Puppet 4; please use type3x() before upgrading to puppet 4 for backwards-compatibility, or migrate to the new parser's typing system.") # rubocop:disable Metrics/LineLength : Unable to reduce to required length
+    expect(scope).to receive(:warning).with("type() DEPRECATED: This function will cease to function on Puppet 4; please use type3x() before upgrading to puppet 4 for backwards-compatibility, or migrate to the new parser's typing system.") # rubocop:disable Layout/LineLength : Unable to reduce to required length
     scope.function_type(['aoeu'])
   end
 
diff --git a/spec/functions/union_spec.rb b/spec/functions/union_spec.rb
index 549229808..d5ab61730 100644
--- a/spec/functions/union_spec.rb
+++ b/spec/functions/union_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'union' do
diff --git a/spec/functions/unique_spec.rb b/spec/functions/unique_spec.rb
index 1cdb93451..92234fae0 100644
--- a/spec/functions/unique_spec.rb
+++ b/spec/functions/unique_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'unique' do
diff --git a/spec/functions/unix2dos_spec.rb b/spec/functions/unix2dos_spec.rb
index a6af64f08..cd94e150e 100644
--- a/spec/functions/unix2dos_spec.rb
+++ b/spec/functions/unix2dos_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'unix2dos' do
diff --git a/spec/functions/upcase_spec.rb b/spec/functions/upcase_spec.rb
index 5b5e42617..d110ee108 100644
--- a/spec/functions/upcase_spec.rb
+++ b/spec/functions/upcase_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'upcase', :if => Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
+describe 'upcase', if: Puppet::Util::Package.versioncmp(Puppet.version, '6.0.0') < 0 do
   describe 'signature validation' do
     it { is_expected.not_to eq(nil) }
     it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i) }
diff --git a/spec/functions/uriescape_spec.rb b/spec/functions/uriescape_spec.rb
index fdc3e20b2..3ac632ade 100644
--- a/spec/functions/uriescape_spec.rb
+++ b/spec/functions/uriescape_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'uriescape' do
diff --git a/spec/functions/validate_absolute_path_spec.rb b/spec/functions/validate_absolute_path_spec.rb
index ba73a2192..4365229b9 100644
--- a/spec/functions/validate_absolute_path_spec.rb
+++ b/spec/functions/validate_absolute_path_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'validate_absolute_path' do
diff --git a/spec/functions/validate_array_spec.rb b/spec/functions/validate_array_spec.rb
index 87b7c2431..da8b093cf 100644
--- a/spec/functions/validate_array_spec.rb
+++ b/spec/functions/validate_array_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'validate_array' do
diff --git a/spec/functions/validate_augeas_spec.rb b/spec/functions/validate_augeas_spec.rb
index 2dd0df897..04ee0eb3e 100644
--- a/spec/functions/validate_augeas_spec.rb
+++ b/spec/functions/validate_augeas_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'validate_augeas' do
diff --git a/spec/functions/validate_bool_spec.rb b/spec/functions/validate_bool_spec.rb
index 72c1e2dc9..ffcf1ba02 100644
--- a/spec/functions/validate_bool_spec.rb
+++ b/spec/functions/validate_bool_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'validate_bool' do
diff --git a/spec/functions/validate_cmd_spec.rb b/spec/functions/validate_cmd_spec.rb
index 91fd0d192..7d8a8a166 100644
--- a/spec/functions/validate_cmd_spec.rb
+++ b/spec/functions/validate_cmd_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'validate_cmd', :unless => Puppet::Util::Platform.windows? do
+describe 'validate_cmd', unless: Puppet::Util::Platform.windows? do
   let(:touch) { File.exist?('/usr/bin/touch') ? '/usr/bin/touch' : '/bin/touch' }
 
   describe 'signature validation' do
diff --git a/spec/functions/validate_domain_name_spec.rb b/spec/functions/validate_domain_name_spec.rb
index 0ac1a3d35..f48d31ab5 100644
--- a/spec/functions/validate_domain_name_spec.rb
+++ b/spec/functions/validate_domain_name_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'validate_domain_name' do
diff --git a/spec/functions/validate_email_address_spec.rb b/spec/functions/validate_email_address_spec.rb
index 520c7a486..9d87061bb 100644
--- a/spec/functions/validate_email_address_spec.rb
+++ b/spec/functions/validate_email_address_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'validate_email_address' do
diff --git a/spec/functions/validate_hash_spec.rb b/spec/functions/validate_hash_spec.rb
index 1c6213b78..89fe882ea 100644
--- a/spec/functions/validate_hash_spec.rb
+++ b/spec/functions/validate_hash_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'validate_hash' do
diff --git a/spec/functions/validate_integer_spec.rb b/spec/functions/validate_integer_spec.rb
index cf29cf8d6..6252a6dc7 100644
--- a/spec/functions/validate_integer_spec.rb
+++ b/spec/functions/validate_integer_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'validate_integer' do
@@ -24,11 +26,11 @@
       it { is_expected.to run.with_params([0, 1, 2, invalid, 3, 4], 10, -10).and_raise_error(Puppet::ParseError, %r{to be an Integer}) }
     end
 
-    context 'when running on modern rubies', :unless => RUBY_VERSION == '1.8.7' do
+    context 'when running on modern rubies', unless: RUBY_VERSION == '1.8.7' do
       it { is_expected.to run.with_params([0, 1, 2, { 1 => 2 }, 3, 4], 10, -10).and_raise_error(Puppet::ParseError, %r{to be an Integer}) }
     end
 
-    context 'when running on ruby, which munges hashes weirdly', :if => RUBY_VERSION == '1.8.7' do
+    context 'when running on ruby, which munges hashes weirdly', if: RUBY_VERSION == '1.8.7' do
       it { is_expected.to run.with_params([0, 1, 2, { 1 => 2 }, 3, 4], 10, -10).and_raise_error(Puppet::ParseError) }
       it { is_expected.to run.with_params([0, 1, 2, { 0 => 2 }, 3, 4], 10, -10).and_raise_error(Puppet::ParseError) }
     end
diff --git a/spec/functions/validate_ip_address_spec.rb b/spec/functions/validate_ip_address_spec.rb
index 8fd145eb6..ded6df976 100644
--- a/spec/functions/validate_ip_address_spec.rb
+++ b/spec/functions/validate_ip_address_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'validate_ip_address' do
@@ -20,7 +22,7 @@
     it { is_expected.to run.with_params('::1/64') }
     it { is_expected.to run.with_params('fe80::a00:27ff:fe94:44d6/64') }
 
-    context 'Checking for deprecation warning', :if => Puppet.version.to_f < 4.0 do
+    context 'Checking for deprecation warning', if: Puppet.version.to_f < 4.0 do
       after(:each) do
         ENV.delete('STDLIB_LOG_DEPRECATIONS')
       end
diff --git a/spec/functions/validate_ipv4_address_spec.rb b/spec/functions/validate_ipv4_address_spec.rb
index 72c3e7a2d..bc8ed7648 100644
--- a/spec/functions/validate_ipv4_address_spec.rb
+++ b/spec/functions/validate_ipv4_address_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'validate_ipv4_address' do
@@ -6,7 +8,7 @@
     it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i) }
   end
 
-  context 'Checking for deprecation warning', :if => Puppet.version.to_f < 4.0 do
+  context 'Checking for deprecation warning', if: Puppet.version.to_f < 4.0 do
     after(:each) do
       ENV.delete('STDLIB_LOG_DEPRECATIONS')
     end
diff --git a/spec/functions/validate_ipv6_address_spec.rb b/spec/functions/validate_ipv6_address_spec.rb
index 0834307f5..3e1563ed1 100644
--- a/spec/functions/validate_ipv6_address_spec.rb
+++ b/spec/functions/validate_ipv6_address_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'validate_ipv6_address' do
@@ -6,7 +8,7 @@
     it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i) }
   end
 
-  context 'Checking for deprecation warning', :if => Puppet.version.to_f < 4.0 do
+  context 'Checking for deprecation warning', if: Puppet.version.to_f < 4.0 do
     after(:each) do
       ENV.delete('STDLIB_LOG_DEPRECATIONS')
     end
@@ -51,7 +53,7 @@
     it { is_expected.to run.with_params('::1', {}).and_raise_error(Puppet::ParseError, %r{is not a string}) }
     it { is_expected.to run.with_params('::1', true).and_raise_error(Puppet::ParseError, %r{is not a string}) }
     it { is_expected.to run.with_params('::1', 'one').and_raise_error(Puppet::ParseError, %r{is not a valid IPv6}) }
-    context 'unless running on ruby 1.8.7', :if => RUBY_VERSION != '1.8.7' do
+    context 'unless running on ruby 1.8.7', if: RUBY_VERSION != '1.8.7' do
       it { is_expected.to run.with_params(1).and_raise_error(Puppet::ParseError, %r{is not a string}) }
       it { is_expected.to run.with_params('::1', 1).and_raise_error(Puppet::ParseError, %r{is not a string}) }
     end
diff --git a/spec/functions/validate_legacy_spec.rb b/spec/functions/validate_legacy_spec.rb
index 6c65d5e7d..0998cf618 100644
--- a/spec/functions/validate_legacy_spec.rb
+++ b/spec/functions/validate_legacy_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.4.0') >= 0
diff --git a/spec/functions/validate_numeric_spec.rb b/spec/functions/validate_numeric_spec.rb
index 80b3e3715..8b593c318 100644
--- a/spec/functions/validate_numeric_spec.rb
+++ b/spec/functions/validate_numeric_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'validate_numeric' do
@@ -23,11 +25,11 @@
       it { is_expected.to run.with_params(invalid, 10.0, -10.0).and_raise_error(Puppet::ParseError, %r{to be a Numeric}) }
     end
 
-    context 'when running on modern rubies', :unless => RUBY_VERSION == '1.8.7' do
+    context 'when running on modern rubies', unless: RUBY_VERSION == '1.8.7' do
       it { is_expected.to run.with_params([0, 1, 2, { 1 => 2 }, 3, 4], 10, -10).and_raise_error(Puppet::ParseError, %r{to be a Numeric}) }
     end
 
-    context 'when running on ruby, which munges hashes weirdly', :if => RUBY_VERSION == '1.8.7' do
+    context 'when running on ruby, which munges hashes weirdly', if: RUBY_VERSION == '1.8.7' do
       it { is_expected.to run.with_params([0, 1, 2, { 1 => 2 }, 3, 4], 10, -10).and_raise_error(Puppet::ParseError) }
       it { is_expected.to run.with_params([0, 1, 2, { 0 => 2 }, 3, 4], 10, -10).and_raise_error(Puppet::ParseError) }
     end
diff --git a/spec/functions/validate_re_spec.rb b/spec/functions/validate_re_spec.rb
index 2a5068981..bfa824e6e 100644
--- a/spec/functions/validate_re_spec.rb
+++ b/spec/functions/validate_re_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'validate_re' do
@@ -47,7 +49,7 @@
         false,              # FalseClass
         ['10'],             # Array
         :key,               # Symbol
-        { :key => 'val' },  # Hash
+        { key: 'val' },  # Hash
       ].each do |input|
         it { is_expected.to run.with_params(input, '.*').and_raise_error(Puppet::ParseError, %r{needs to be a String}) }
       end
diff --git a/spec/functions/validate_slength_spec.rb b/spec/functions/validate_slength_spec.rb
index b11444dc6..6ff44c737 100644
--- a/spec/functions/validate_slength_spec.rb
+++ b/spec/functions/validate_slength_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'validate_slength' do
diff --git a/spec/functions/validate_string_spec.rb b/spec/functions/validate_string_spec.rb
index 40522c6f1..515747f84 100644
--- a/spec/functions/validate_string_spec.rb
+++ b/spec/functions/validate_string_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'validate_string' do
diff --git a/spec/functions/validate_x509_rsa_key_pair_spec.rb b/spec/functions/validate_x509_rsa_key_pair_spec.rb
index 937c1898e..08a24234e 100644
--- a/spec/functions/validate_x509_rsa_key_pair_spec.rb
+++ b/spec/functions/validate_x509_rsa_key_pair_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'validate_x509_rsa_key_pair' do
@@ -174,7 +176,6 @@ def truncate_middle(string)
     start_pos = middle - (chars_to_truncate / 2)
     end_pos = middle + (chars_to_truncate / 2)
 
-    string[start_pos...end_pos] = ''
-    string
+    string[0..start_pos] + string[end_pos..-1]
   end
 end
diff --git a/spec/functions/values_at_spec.rb b/spec/functions/values_at_spec.rb
index 048f270b1..61c9f4d2f 100644
--- a/spec/functions/values_at_spec.rb
+++ b/spec/functions/values_at_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'values_at' do
diff --git a/spec/functions/values_spec.rb b/spec/functions/values_spec.rb
index 850d31472..b2c3e4b05 100644
--- a/spec/functions/values_spec.rb
+++ b/spec/functions/values_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-describe 'values', :if => Puppet::Util::Package.versioncmp(Puppet.version, '5.5.0') < 0 do
+describe 'values', if: Puppet::Util::Package.versioncmp(Puppet.version, '5.5.0') < 0 do
   it { is_expected.not_to eq(nil) }
   it { is_expected.to run.with_params.and_raise_error(Puppet::ParseError, %r{wrong number of arguments}i) }
   it {
diff --git a/spec/functions/zip_spec.rb b/spec/functions/zip_spec.rb
index c2b4e3bb3..77c7f9435 100644
--- a/spec/functions/zip_spec.rb
+++ b/spec/functions/zip_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'zip' do
diff --git a/spec/monkey_patches/alias_should_to_must.rb b/spec/monkey_patches/alias_should_to_must.rb
index 51a7b9db2..beb36bff1 100644
--- a/spec/monkey_patches/alias_should_to_must.rb
+++ b/spec/monkey_patches/alias_should_to_must.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rspec'
 # class Object
 class Object
diff --git a/spec/monkey_patches/publicize_methods.rb b/spec/monkey_patches/publicize_methods.rb
index 70cf4f056..91eca2f60 100644
--- a/spec/monkey_patches/publicize_methods.rb
+++ b/spec/monkey_patches/publicize_methods.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Some monkey-patching to allow us to test private methods.
 class Class
   def publicize_methods(*methods)
diff --git a/spec/spec_helper_local.rb b/spec/spec_helper_local.rb
index 5fea4da4a..877294391 100644
--- a/spec/spec_helper_local.rb
+++ b/spec/spec_helper_local.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # automatically load any shared examples or contexts
 Dir['./spec/support/**/*.rb'].sort.each { |f| require f }
 
diff --git a/spec/support/shared_data.rb b/spec/support/shared_data.rb
index 013ec105a..e19f82488 100644
--- a/spec/support/shared_data.rb
+++ b/spec/support/shared_data.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module SharedData
   IPV4_PATTERNS = [
     '0.0.0.0',
diff --git a/spec/type_aliases/absolute_path_spec.rb b/spec/type_aliases/absolute_path_spec.rb
index 0e5564f45..ba4195548 100644
--- a/spec/type_aliases/absolute_path_spec.rb
+++ b/spec/type_aliases/absolute_path_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/array_spec.rb b/spec/type_aliases/array_spec.rb
index 0b0da3cbf..07bc7cce8 100644
--- a/spec/type_aliases/array_spec.rb
+++ b/spec/type_aliases/array_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/base32_spec.rb b/spec/type_aliases/base32_spec.rb
index 48c47451a..b50dc94b1 100644
--- a/spec/type_aliases/base32_spec.rb
+++ b/spec/type_aliases/base32_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/base64_spec.rb b/spec/type_aliases/base64_spec.rb
index 0de9e6daf..ddb297094 100644
--- a/spec/type_aliases/base64_spec.rb
+++ b/spec/type_aliases/base64_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/bool_spec.rb b/spec/type_aliases/bool_spec.rb
index bdc8f75f6..6b8da7cd1 100644
--- a/spec/type_aliases/bool_spec.rb
+++ b/spec/type_aliases/bool_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/compat__ip_address.rb b/spec/type_aliases/compat__ip_address.rb
index 671c64b2f..c98c45cd7 100644
--- a/spec/type_aliases/compat__ip_address.rb
+++ b/spec/type_aliases/compat__ip_address.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/compat__ipv4_spec.rb b/spec/type_aliases/compat__ipv4_spec.rb
index dfd4be180..fb5ad79f8 100644
--- a/spec/type_aliases/compat__ipv4_spec.rb
+++ b/spec/type_aliases/compat__ipv4_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/compat__ipv6_spec.rb b/spec/type_aliases/compat__ipv6_spec.rb
index 94211b695..c9214b62b 100644
--- a/spec/type_aliases/compat__ipv6_spec.rb
+++ b/spec/type_aliases/compat__ipv6_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/datasize_spec.rb b/spec/type_aliases/datasize_spec.rb
index b5976fd26..c7c6b4cbf 100644
--- a/spec/type_aliases/datasize_spec.rb
+++ b/spec/type_aliases/datasize_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/email_spec.rb b/spec/type_aliases/email_spec.rb
index 5c262c9ce..add96eeff 100644
--- a/spec/type_aliases/email_spec.rb
+++ b/spec/type_aliases/email_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 # Test cases are a combination of the test cases used in MediaWiki[1] and a
diff --git a/spec/type_aliases/filemode_spec.rb b/spec/type_aliases/filemode_spec.rb
index c5a60857c..09a47a34a 100644
--- a/spec/type_aliases/filemode_spec.rb
+++ b/spec/type_aliases/filemode_spec.rb
@@ -1,4 +1,5 @@
 # coding: utf-8
+# frozen_string_literal: true
 
 require 'spec_helper'
 
diff --git a/spec/type_aliases/filesource_spec.rb b/spec/type_aliases/filesource_spec.rb
index 544a90ea3..8c13b1364 100644
--- a/spec/type_aliases/filesource_spec.rb
+++ b/spec/type_aliases/filesource_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/float_spec.rb b/spec/type_aliases/float_spec.rb
index 3d1d6673a..fe4810e75 100644
--- a/spec/type_aliases/float_spec.rb
+++ b/spec/type_aliases/float_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/fqdn_spec.rb b/spec/type_aliases/fqdn_spec.rb
index c8dfef135..904716cc7 100644
--- a/spec/type_aliases/fqdn_spec.rb
+++ b/spec/type_aliases/fqdn_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/hash_spec.rb b/spec/type_aliases/hash_spec.rb
index 6e88a4268..e5960d009 100644
--- a/spec/type_aliases/hash_spec.rb
+++ b/spec/type_aliases/hash_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/host_spec.rb b/spec/type_aliases/host_spec.rb
index acf9b1f41..e0a40341a 100644
--- a/spec/type_aliases/host_spec.rb
+++ b/spec/type_aliases/host_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/httpstatus_spec.rb b/spec/type_aliases/httpstatus_spec.rb
index 16721bec6..0e7b2a33a 100644
--- a/spec/type_aliases/httpstatus_spec.rb
+++ b/spec/type_aliases/httpstatus_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/httpsurl_spec.rb b/spec/type_aliases/httpsurl_spec.rb
index 07f6804d4..f0e99b7e0 100644
--- a/spec/type_aliases/httpsurl_spec.rb
+++ b/spec/type_aliases/httpsurl_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/httpurl_spec.rb b/spec/type_aliases/httpurl_spec.rb
index 420b06eaa..9459479b6 100644
--- a/spec/type_aliases/httpurl_spec.rb
+++ b/spec/type_aliases/httpurl_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/integer_spec.rb b/spec/type_aliases/integer_spec.rb
index 29298fa65..eefac67e9 100644
--- a/spec/type_aliases/integer_spec.rb
+++ b/spec/type_aliases/integer_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/ip_address_nosubnet_spec.rb b/spec/type_aliases/ip_address_nosubnet_spec.rb
index 921d95704..e82181e47 100644
--- a/spec/type_aliases/ip_address_nosubnet_spec.rb
+++ b/spec/type_aliases/ip_address_nosubnet_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/ip_address_spec.rb b/spec/type_aliases/ip_address_spec.rb
index e60335068..9b226ea80 100644
--- a/spec/type_aliases/ip_address_spec.rb
+++ b/spec/type_aliases/ip_address_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/ip_address_v4_nosubnet_spec.rb b/spec/type_aliases/ip_address_v4_nosubnet_spec.rb
index ab74f8ce8..8dc9aa60c 100644
--- a/spec/type_aliases/ip_address_v4_nosubnet_spec.rb
+++ b/spec/type_aliases/ip_address_v4_nosubnet_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/ip_address_v4_spec.rb b/spec/type_aliases/ip_address_v4_spec.rb
index 10854c8fa..cd61c2d07 100644
--- a/spec/type_aliases/ip_address_v4_spec.rb
+++ b/spec/type_aliases/ip_address_v4_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/ip_address_v6_alternative_spec.rb b/spec/type_aliases/ip_address_v6_alternative_spec.rb
index 9fbf7ca72..90bf40a5e 100644
--- a/spec/type_aliases/ip_address_v6_alternative_spec.rb
+++ b/spec/type_aliases/ip_address_v6_alternative_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/ip_address_v6_cidr_spec.rb b/spec/type_aliases/ip_address_v6_cidr_spec.rb
index 4b8fee3bb..1cc20316e 100644
--- a/spec/type_aliases/ip_address_v6_cidr_spec.rb
+++ b/spec/type_aliases/ip_address_v6_cidr_spec.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 
 require 'spec_helper'
 
diff --git a/spec/type_aliases/ip_address_v6_compressed_spec.rb b/spec/type_aliases/ip_address_v6_compressed_spec.rb
index e2b7dd533..968fcd2a0 100644
--- a/spec/type_aliases/ip_address_v6_compressed_spec.rb
+++ b/spec/type_aliases/ip_address_v6_compressed_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/ip_address_v6_full_spec.rb b/spec/type_aliases/ip_address_v6_full_spec.rb
index cc8013d87..c69ed1d94 100644
--- a/spec/type_aliases/ip_address_v6_full_spec.rb
+++ b/spec/type_aliases/ip_address_v6_full_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/ip_address_v6_nosubnet_alternative_spec.rb b/spec/type_aliases/ip_address_v6_nosubnet_alternative_spec.rb
index 0b36cb9ca..85f037a8c 100644
--- a/spec/type_aliases/ip_address_v6_nosubnet_alternative_spec.rb
+++ b/spec/type_aliases/ip_address_v6_nosubnet_alternative_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/ip_address_v6_nosubnet_compressed_spec.rb b/spec/type_aliases/ip_address_v6_nosubnet_compressed_spec.rb
index 96af0354c..bbca083ab 100644
--- a/spec/type_aliases/ip_address_v6_nosubnet_compressed_spec.rb
+++ b/spec/type_aliases/ip_address_v6_nosubnet_compressed_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/ip_address_v6_nosubnet_full_spec.rb b/spec/type_aliases/ip_address_v6_nosubnet_full_spec.rb
index 9135e002d..6ef0a31af 100644
--- a/spec/type_aliases/ip_address_v6_nosubnet_full_spec.rb
+++ b/spec/type_aliases/ip_address_v6_nosubnet_full_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/ip_address_v6_spec.rb b/spec/type_aliases/ip_address_v6_spec.rb
index 864c56538..a44ea326e 100644
--- a/spec/type_aliases/ip_address_v6_spec.rb
+++ b/spec/type_aliases/ip_address_v6_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/mac_spec.rb b/spec/type_aliases/mac_spec.rb
index af8cd177e..67c08e2b0 100644
--- a/spec/type_aliases/mac_spec.rb
+++ b/spec/type_aliases/mac_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/numeric_spec.rb b/spec/type_aliases/numeric_spec.rb
index a59b4e227..3a7aabb5a 100644
--- a/spec/type_aliases/numeric_spec.rb
+++ b/spec/type_aliases/numeric_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/objectstore_gsuri_spec.rb b/spec/type_aliases/objectstore_gsuri_spec.rb
index 5b9390aac..c4c728a54 100644
--- a/spec/type_aliases/objectstore_gsuri_spec.rb
+++ b/spec/type_aliases/objectstore_gsuri_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/objectstore_s3uri_spec.rb b/spec/type_aliases/objectstore_s3uri_spec.rb
index c4785abab..efcbbd639 100644
--- a/spec/type_aliases/objectstore_s3uri_spec.rb
+++ b/spec/type_aliases/objectstore_s3uri_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/objectstore_spec.rb b/spec/type_aliases/objectstore_spec.rb
index ae3c2caca..a1f61effd 100644
--- a/spec/type_aliases/objectstore_spec.rb
+++ b/spec/type_aliases/objectstore_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/port__dynamic_spec.rb b/spec/type_aliases/port__dynamic_spec.rb
index 5503e7c0d..a282f5158 100644
--- a/spec/type_aliases/port__dynamic_spec.rb
+++ b/spec/type_aliases/port__dynamic_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/port__privileged_spec.rb b/spec/type_aliases/port__privileged_spec.rb
index 51ddd2478..7260188d3 100644
--- a/spec/type_aliases/port__privileged_spec.rb
+++ b/spec/type_aliases/port__privileged_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/port__unprivileged_spec.rb b/spec/type_aliases/port__unprivileged_spec.rb
index 0009e1f64..a3fa39208 100644
--- a/spec/type_aliases/port__unprivileged_spec.rb
+++ b/spec/type_aliases/port__unprivileged_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/port__user_spec.rb b/spec/type_aliases/port__user_spec.rb
index c34e9b227..061d5700b 100644
--- a/spec/type_aliases/port__user_spec.rb
+++ b/spec/type_aliases/port__user_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/port_spec.rb b/spec/type_aliases/port_spec.rb
index 3c9582c19..02f094466 100644
--- a/spec/type_aliases/port_spec.rb
+++ b/spec/type_aliases/port_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/string_spec.rb b/spec/type_aliases/string_spec.rb
index 93a9d0f13..b3cdd2d84 100644
--- a/spec/type_aliases/string_spec.rb
+++ b/spec/type_aliases/string_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/unixpath_spec.rb b/spec/type_aliases/unixpath_spec.rb
index 3f8372dd0..3c9f4a7a7 100644
--- a/spec/type_aliases/unixpath_spec.rb
+++ b/spec/type_aliases/unixpath_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/windowspath_spec.rb b/spec/type_aliases/windowspath_spec.rb
index fb0baaf99..00b4ee4a9 100644
--- a/spec/type_aliases/windowspath_spec.rb
+++ b/spec/type_aliases/windowspath_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 if Puppet::Util::Package.versioncmp(Puppet.version, '4.5.0') >= 0
diff --git a/spec/type_aliases/yes_no_spec.rb b/spec/type_aliases/yes_no_spec.rb
index 9416c6ae2..b61d10a70 100644
--- a/spec/type_aliases/yes_no_spec.rb
+++ b/spec/type_aliases/yes_no_spec.rb
@@ -1,4 +1,5 @@
 # coding: utf-8
+# frozen_string_literal: true
 
 require 'spec_helper'
 
diff --git a/spec/unit/facter/package_provider_spec.rb b/spec/unit/facter/package_provider_spec.rb
index 011d3ed8e..3e75c2870 100644
--- a/spec/unit/facter/package_provider_spec.rb
+++ b/spec/unit/facter/package_provider_spec.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'puppet/type'
 require 'puppet/type/package'
 
-describe 'package_provider', :type => :fact do
+describe 'package_provider', type: :fact do
   before(:each) { Facter.clear }
   after(:each) { Facter.clear }
 
diff --git a/spec/unit/facter/pe_version_spec.rb b/spec/unit/facter/pe_version_spec.rb
index ba9058280..e152548f7 100644
--- a/spec/unit/facter/pe_version_spec.rb
+++ b/spec/unit/facter/pe_version_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'PE Version specs' do
@@ -32,19 +34,19 @@
           expect(Facter.fact(:is_pe).value).to eq(true)
         end
 
-        it "Should have a version of #{version}" do
+        it "has a version of #{version}" do
           expect(Facter.fact(:pe_version).value).to eq(version)
         end
 
-        it "Should have a major version of #{major}" do
+        it "has a major version of #{major}" do
           expect(Facter.fact(:pe_major_version).value).to eq(major)
         end
 
-        it "Should have a minor version of #{minor}" do
+        it "has a minor version of #{minor}" do
           expect(Facter.fact(:pe_minor_version).value).to eq(minor)
         end
 
-        it "Should have a patch version of #{patch}" do
+        it "has a patch version of #{patch}" do
           expect(Facter.fact(:pe_patch_version).value).to eq(patch)
         end
       end
diff --git a/spec/unit/facter/root_home_spec.rb b/spec/unit/facter/root_home_spec.rb
index 5e5b0bfc5..5421f3e68 100644
--- a/spec/unit/facter/root_home_spec.rb
+++ b/spec/unit/facter/root_home_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'facter/root_home'
 describe 'Root Home Specs' do
@@ -28,7 +30,7 @@
     end
   end
 
-  describe 'root_home', :type => :fact do
+  describe 'root_home', type: :fact do
     before(:each) { Facter.clear }
     after(:each) { Facter.clear }
 
diff --git a/spec/unit/facter/service_provider_spec.rb b/spec/unit/facter/service_provider_spec.rb
index b3d4aec69..4d7d4e104 100644
--- a/spec/unit/facter/service_provider_spec.rb
+++ b/spec/unit/facter/service_provider_spec.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'puppet/type'
 require 'puppet/type/service'
 
-describe 'service_provider', :type => :fact do
+describe 'service_provider', type: :fact do
   before(:each) { Facter.clear }
   after(:each) { Facter.clear }
 
diff --git a/spec/unit/facter/util/puppet_settings_spec.rb b/spec/unit/facter/util/puppet_settings_spec.rb
index 05dff893f..edd63a86e 100644
--- a/spec/unit/facter/util/puppet_settings_spec.rb
+++ b/spec/unit/facter/util/puppet_settings_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'facter/util/puppet_settings'
 
diff --git a/spec/unit/puppet/parser/functions/enclose_ipv6_spec.rb b/spec/unit/puppet/parser/functions/enclose_ipv6_spec.rb
index 39d3b7afb..ca815de61 100644
--- a/spec/unit/puppet/parser/functions/enclose_ipv6_spec.rb
+++ b/spec/unit/puppet/parser/functions/enclose_ipv6_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'the enclose_ipv6 function' do
diff --git a/spec/unit/puppet/parser/functions/is_absolute_path_spec.rb b/spec/unit/puppet/parser/functions/is_absolute_path_spec.rb
index 589ad8228..097b3db1a 100644
--- a/spec/unit/puppet/parser/functions/is_absolute_path_spec.rb
+++ b/spec/unit/puppet/parser/functions/is_absolute_path_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'is_absolute_path' do
diff --git a/spec/unit/puppet/provider/file_line/ruby_spec.rb b/spec/unit/puppet/provider/file_line/ruby_spec.rb
index d0f653aa9..506160bee 100644
--- a/spec/unit/puppet/provider/file_line/ruby_spec.rb
+++ b/spec/unit/puppet/provider/file_line/ruby_spec.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 provider_class = Puppet::Type.type(:file_line).provider(:ruby)
 #  These tests fail on windows when run as part of the rake task. Individually they pass
-describe provider_class, :unless => Puppet::Util::Platform.windows? do
+describe provider_class, unless: Puppet::Util::Platform.windows? do
   include PuppetlabsSpec::Files
 
   let :tmpfile do
@@ -16,9 +18,9 @@
   end
   let :resource do
     Puppet::Type::File_line.new({
-      :name => 'foo',
-      :path => tmpfile,
-      :line => 'foo',
+      name: 'foo',
+      path: tmpfile,
+      line: 'foo',
     }.merge(params))
   end
   let :provider do
@@ -53,7 +55,7 @@
   end
 
   describe 'match parameter' do
-    let(:params) { { :match => '^bar' } }
+    let(:params) { { match: '^bar' } }
 
     describe 'does not match line - line does not exist - replacing' do
       let(:content) { "foo bar\nbar" }
@@ -68,7 +70,7 @@
     end
 
     describe 'does not match line - line does not exist - appending' do
-      let(:params) { super().merge(:replace => false) }
+      let(:params) { super().merge(replace: false) }
       let(:content) { "foo bar\nbar" }
 
       it 'does not request changes' do
@@ -85,7 +87,7 @@
     end
 
     context 'when matches line - line exists' do
-      let(:params) { { :match => '^foo' } }
+      let(:params) { { match: '^foo' } }
       let(:content) { "foo\nbar" }
 
       it 'detects the line' do
@@ -94,7 +96,7 @@
     end
 
     context 'when matches line - line does not exist' do
-      let(:params) { { :match => '^foo' } }
+      let(:params) { { match: '^foo' } }
       let(:content) { "foo bar\nbar" }
 
       it 'requests changes' do
@@ -110,8 +112,8 @@
   describe 'append_on_no_match' do
     let(:params) do
       {
-        :append_on_no_match => false,
-        :match => '^foo1$',
+        append_on_no_match: false,
+        match: '^foo1$',
       }
     end
 
@@ -139,8 +141,8 @@
     context 'when replace is false' do
       let(:params) do
         {
-          :replace_all_matches_not_matching_line => true,
-          :replace => false,
+          replace_all_matches_not_matching_line: true,
+          replace: false,
         }
       end
 
@@ -152,9 +154,9 @@
     context 'when match matches line - when there are more matches than lines' do
       let(:params) do
         {
-          :replace_all_matches_not_matching_line => true,
-          :match => '^foo',
-          :multiple => true,
+          replace_all_matches_not_matching_line: true,
+          match: '^foo',
+          multiple: true,
         }
       end
       let(:content) { "foo\nfoo bar\nbar\nfoo baz" }
@@ -171,9 +173,9 @@
     context 'when match matches line - when there are the same matches and lines' do
       let(:params) do
         {
-          :replace_all_matches_not_matching_line => true,
-          :match => '^foo',
-          :multiple => true,
+          replace_all_matches_not_matching_line: true,
+          match: '^foo',
+          multiple: true,
         }
       end
       let(:content) { "foo\nfoo\nbar" }
@@ -186,9 +188,9 @@
     context 'when match does not match line - when there are more matches than lines' do
       let(:params) do
         {
-          :replace_all_matches_not_matching_line => true,
-          :match => '^bar',
-          :multiple => true,
+          replace_all_matches_not_matching_line: true,
+          match: '^bar',
+          multiple: true,
         }
       end
       let(:content) { "foo\nfoo bar\nbar\nbar baz" }
@@ -205,9 +207,9 @@
     context 'when match does not match line - when there are the same matches and lines' do
       let(:params) do
         {
-          :replace_all_matches_not_matching_line => true,
-          :match => '^bar',
-          :multiple => true,
+          replace_all_matches_not_matching_line: true,
+          match: '^bar',
+          multiple: true,
         }
       end
       let(:content) { "foo\nfoo\nbar\nbar baz" }
@@ -225,9 +227,9 @@
   context 'when match does not match line - when there are no matches' do
     let(:params) do
       {
-        :replace_all_matches_not_matching_line => true,
-        :match => '^bar',
-        :multiple => true,
+        replace_all_matches_not_matching_line: true,
+        match: '^bar',
+        multiple: true,
       }
     end
     let(:content) { "foo\nfoo bar" }
@@ -240,9 +242,9 @@
   context 'when match does not match line - when there are no matches or lines' do
     let(:params) do
       {
-        :replace_all_matches_not_matching_line => true,
-        :match => '^bar',
-        :multiple => true,
+        replace_all_matches_not_matching_line: true,
+        match: '^bar',
+        multiple: true,
       }
     end
     let(:content) { 'foo bar' }
diff --git a/spec/unit/puppet/provider/file_line/ruby_spec_alter.rb b/spec/unit/puppet/provider/file_line/ruby_spec_alter.rb
index c2b30ffad..f6f7e9340 100644
--- a/spec/unit/puppet/provider/file_line/ruby_spec_alter.rb
+++ b/spec/unit/puppet/provider/file_line/ruby_spec_alter.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 provider_class = Puppet::Type.type(:file_line).provider(:ruby)
 #  These tests fail on windows when run as part of the rake task. Individually they pass
-describe provider_class, :unless => Puppet::Util::Platform.windows? do
+describe provider_class, unless: Puppet::Util::Platform.windows? do
   include PuppetlabsSpec::Files
 
   let :tmpfile do
@@ -16,9 +18,9 @@
   end
   let :resource do
     Puppet::Type::File_line.new({
-      :name => 'foo',
-      :path => tmpfile,
-      :line => 'foo',
+      name: 'foo',
+      path: tmpfile,
+      line: 'foo',
     }.merge(params))
   end
   let :provider do
@@ -38,9 +40,9 @@
     context 'when replacing' do
       let :params do
         {
-          :line => 'foo = bar',
-          :match => '^foo\s*=.*$',
-          :replace => false,
+          line: 'foo = bar',
+          match: '^foo\s*=.*$',
+          replace: false,
         }
       end
       let(:content) { "foo1\nfoo=blah\nfoo2\nfoo3" }
@@ -61,7 +63,7 @@
       it 'raises an error with invalid values' do
         expect {
           @resource = Puppet::Type::File_line.new(
-            :name => 'foo', :path => tmpfile, :line => 'foo = bar', :match => '^foo\s*=.*$', :replace => 'asgadga',
+            name: 'foo', path: tmpfile, line: 'foo = bar', match: '^foo\s*=.*$', replace: 'asgadga',
           )
         }.to raise_error(Puppet::Error, %r{Invalid value "asgadga"\. Valid values are true, false\.})
       end
@@ -74,10 +76,10 @@
     # rubocop:disable RSpec/InstanceVariable : replacing before with let breaks the tests, variables need to be altered within it block : multi
     before :each do
       @resource = Puppet::Type::File_line.new(
-        :name => 'foo',
-        :path => tmpfile,
-        :line => 'foo = bar',
-        :match => '^foo\s*=.*$',
+        name: 'foo',
+        path: tmpfile,
+        line: 'foo = bar',
+        match: '^foo\s*=.*$',
       )
       @provider = provider_class.new(@resource)
     end
@@ -89,7 +91,7 @@
       end
 
       it 'replaces all lines that matches' do
-        @resource = Puppet::Type::File_line.new(:name => 'foo', :path => tmpfile, :line => 'foo = bar', :match => '^foo\s*=.*$', :multiple => true)
+        @resource = Puppet::Type::File_line.new(name: 'foo', path: tmpfile, line: 'foo = bar', match: '^foo\s*=.*$', multiple: true)
         @provider = provider_class.new(@resource)
         File.open(tmpfile, 'w') { |fh| fh.write("foo1\nfoo=blah\nfoo2\nfoo=baz") }
         @provider.create
@@ -97,7 +99,7 @@
       end
 
       it 'replaces all lines that match, even when some lines are correct' do
-        @resource = Puppet::Type::File_line.new(:name => 'neil', :path => tmpfile, :line => "\thard\tcore\t0\n", :match => '^[ \t]hard[ \t]+core[ \t]+.*', :multiple => true)
+        @resource = Puppet::Type::File_line.new(name: 'neil', path: tmpfile, line: "\thard\tcore\t0\n", match: '^[ \t]hard[ \t]+core[ \t]+.*', multiple: true)
         @provider = provider_class.new(@resource)
         File.open(tmpfile, 'w') { |fh| fh.write("\thard\tcore\t90\n\thard\tcore\t0\n") }
         @provider.create
@@ -107,7 +109,7 @@
       it 'raises an error with invalid values' do
         expect {
           @resource = Puppet::Type::File_line.new(
-            :name => 'foo', :path => tmpfile, :line => 'foo = bar', :match => '^foo\s*=.*$', :multiple => 'asgadga',
+            name: 'foo', path: tmpfile, line: 'foo = bar', match: '^foo\s*=.*$', multiple: 'asgadga',
           )
         }.to raise_error(Puppet::Error, %r{Invalid value "asgadga"\. Valid values are true, false\.})
       end
@@ -130,7 +132,7 @@
     end
     describe 'using match+append_on_no_match - when there is a match' do
       it 'replaces line' do
-        @resource = Puppet::Type::File_line.new(:name => 'foo', :path => tmpfile, :line => 'inserted = line', :match => '^foo3$', :append_on_no_match => false)
+        @resource = Puppet::Type::File_line.new(name: 'foo', path: tmpfile, line: 'inserted = line', match: '^foo3$', append_on_no_match: false)
         @provider = provider_class.new(@resource)
         File.open(tmpfile, 'w') { |fh| fh.write("foo1\nfoo = blah\nfoo2\nfoo = baz") }
         expect(File.read(tmpfile).chomp).to eql("foo1\nfoo = blah\nfoo2\nfoo = baz")
@@ -138,7 +140,7 @@
     end
     describe 'using match+append_on_no_match - when there is no match' do
       it 'does not add line after no matches found' do
-        @resource = Puppet::Type::File_line.new(:name => 'foo', :path => tmpfile, :line => 'inserted = line', :match => '^foo3$', :append_on_no_match => false)
+        @resource = Puppet::Type::File_line.new(name: 'foo', path: tmpfile, line: 'inserted = line', match: '^foo3$', append_on_no_match: false)
         @provider = provider_class.new(@resource)
         File.open(tmpfile, 'w') { |fh| fh.write("foo1\nfoo = blah\nfoo2\nfoo = baz") }
         expect(File.read(tmpfile).chomp).to eql("foo1\nfoo = blah\nfoo2\nfoo = baz")
@@ -151,10 +153,10 @@
   context 'when after' do
     let :resource do
       Puppet::Type::File_line.new(
-        :name => 'foo',
-        :path => tmpfile,
-        :line => 'inserted = line',
-        :after => '^foo1',
+        name: 'foo',
+        path: tmpfile,
+        line: 'inserted = line',
+        after: '^foo1',
       )
     end
 
@@ -168,11 +170,11 @@
         let(:after) { '^foo1$' }
         let(:resource) do
           Puppet::Type::File_line.new(
-            :name => 'foo',
-            :path => tmpfile,
-            :line => 'inserted = line',
-            :after => after,
-            :match => match,
+            name: 'foo',
+            path: tmpfile,
+            line: 'inserted = line',
+            after: after,
+            match: match,
           )
         end
       end
@@ -226,7 +228,7 @@
       end
 
       it 'adds the line after all lines matching the after expression' do
-        @resource = Puppet::Type::File_line.new(:name => 'foo', :path => tmpfile, :line => 'inserted = line', :after => '^foo1$', :multiple => true)
+        @resource = Puppet::Type::File_line.new(name: 'foo', path: tmpfile, line: 'inserted = line', after: '^foo1$', multiple: true)
         @provider = provider_class.new(@resource)
         @provider.create
         expect(File.read(tmpfile).chomp).to eql("foo1\ninserted = line\nfoo = blah\nfoo2\nfoo1\ninserted = line\nfoo = baz")
@@ -253,10 +255,10 @@
       #  file fixtures once the following pull request has been merged:
       # https://github.com/puppetlabs/puppetlabs-stdlib/pull/73/files
       @resource = Puppet::Type::File_line.new(
-        :name => 'foo',
-        :path => tmpfile,
-        :line => 'foo',
-        :ensure => 'absent',
+        name: 'foo',
+        path: tmpfile,
+        line: 'foo',
+        ensure: 'absent',
       )
       @provider = provider_class.new(@resource)
     end
@@ -276,7 +278,7 @@
       expect(File.read(tmpfile)).to eql("foo1\nfoo2\n")
     end
     it 'example in the docs' do
-      @resource = Puppet::Type::File_line.new(:name => 'bashrc_proxy', :ensure => 'absent', :path => tmpfile, :line => 'export HTTP_PROXY=http://squid.puppetlabs.vm:3128')
+      @resource = Puppet::Type::File_line.new(name: 'bashrc_proxy', ensure: 'absent', path: tmpfile, line: 'export HTTP_PROXY=http://squid.puppetlabs.vm:3128')
       @provider = provider_class.new(@resource)
       File.open(tmpfile, 'w') { |fh| fh.write("foo1\nfoo2\nexport HTTP_PROXY=http://squid.puppetlabs.vm:3128\nfoo4\n") }
       @provider.destroy
@@ -286,12 +288,12 @@
   context 'when removing with a match' do
     before :each do
       @resource = Puppet::Type::File_line.new(
-        :name => 'foo',
-        :path => tmpfile,
-        :line => 'foo2',
-        :ensure => 'absent',
-        :match => 'o$',
-        :match_for_absence => true,
+        name: 'foo',
+        path: tmpfile,
+        line: 'foo2',
+        ensure: 'absent',
+        match: 'o$',
+        match_for_absence: true,
       )
       @provider = provider_class.new(@resource)
     end
@@ -308,7 +310,7 @@
     end
 
     it 'the line parameter is actually not used at all but is silently ignored if here' do
-      @resource = Puppet::Type::File_line.new(:name => 'foo', :path => tmpfile, :line => 'supercalifragilisticexpialidocious', :ensure => 'absent', :match => 'o$', :match_for_absence => true)
+      @resource = Puppet::Type::File_line.new(name: 'foo', path: tmpfile, line: 'supercalifragilisticexpialidocious', ensure: 'absent', match: 'o$', match_for_absence: true)
       @provider = provider_class.new(@resource)
       File.open(tmpfile, 'w') { |fh| fh.write("foo1\nfoo\nfoo2") }
       @provider.destroy
@@ -316,7 +318,7 @@
     end
 
     it 'and may not be here and does not need to be here' do
-      @resource = Puppet::Type::File_line.new(:name => 'foo', :path => tmpfile, :ensure => 'absent', :match => 'o$', :match_for_absence => true)
+      @resource = Puppet::Type::File_line.new(name: 'foo', path: tmpfile, ensure: 'absent', match: 'o$', match_for_absence: true)
       @provider = provider_class.new(@resource)
       File.open(tmpfile, 'w') { |fh| fh.write("foo1\nfoo\nfoo2") }
       @provider.destroy
@@ -329,7 +331,7 @@
     end
 
     it 'removes multiple lines if :multiple is true' do
-      @resource = Puppet::Type::File_line.new(:name => 'foo', :path => tmpfile, :line => 'foo2', :ensure => 'absent', :match => 'o$', :multiple => true, :match_for_absence => true)
+      @resource = Puppet::Type::File_line.new(name: 'foo', path: tmpfile, line: 'foo2', ensure: 'absent', match: 'o$', multiple: true, match_for_absence: true)
       @provider = provider_class.new(@resource)
       File.open(tmpfile, 'w') { |fh| fh.write("foo1\nfoo\nfoo2\nfoo\nfoo") }
       @provider.destroy
@@ -337,7 +339,7 @@
     end
 
     it 'ignores the match if match_for_absence is not specified' do
-      @resource = Puppet::Type::File_line.new(:name => 'foo', :path => tmpfile, :line => 'foo2', :ensure => 'absent', :match => 'o$')
+      @resource = Puppet::Type::File_line.new(name: 'foo', path: tmpfile, line: 'foo2', ensure: 'absent', match: 'o$')
       @provider = provider_class.new(@resource)
       File.open(tmpfile, 'w') { |fh| fh.write("foo1\nfoo\nfoo2") }
       @provider.destroy
@@ -345,7 +347,7 @@
     end
 
     it 'ignores the match if match_for_absence is false' do
-      @resource = Puppet::Type::File_line.new(:name => 'foo', :path => tmpfile, :line => 'foo2', :ensure => 'absent', :match => 'o$', :match_for_absence => false)
+      @resource = Puppet::Type::File_line.new(name: 'foo', path: tmpfile, line: 'foo2', ensure: 'absent', match: 'o$', match_for_absence: false)
       @provider = provider_class.new(@resource)
       File.open(tmpfile, 'w') { |fh| fh.write("foo1\nfoo\nfoo2") }
       @provider.destroy
@@ -354,8 +356,8 @@
 
     it 'example in the docs' do
       @resource = Puppet::Type::File_line.new(
-        :name => 'bashrc_proxy', :ensure => 'absent', :path => tmpfile, :line => 'export HTTP_PROXY=http://squid.puppetlabs.vm:3128',
-        :match => '^export\ HTTP_PROXY\=', :match_for_absence => true
+        name: 'bashrc_proxy', ensure: 'absent', path: tmpfile, line: 'export HTTP_PROXY=http://squid.puppetlabs.vm:3128',
+        match: '^export\ HTTP_PROXY\=', match_for_absence: true
       )
       @provider = provider_class.new(@resource)
       File.open(tmpfile, 'w') { |fh| fh.write("foo1\nfoo2\nexport HTTP_PROXY=foo\nfoo4\n") }
@@ -364,7 +366,7 @@
     end
 
     it 'example in the docs showing line is redundant' do
-      @resource = Puppet::Type::File_line.new(:name => 'bashrc_proxy', :ensure => 'absent', :path => tmpfile, :match => '^export\ HTTP_PROXY\=', :match_for_absence => true)
+      @resource = Puppet::Type::File_line.new(name: 'bashrc_proxy', ensure: 'absent', path: tmpfile, match: '^export\ HTTP_PROXY\=', match_for_absence: true)
       @provider = provider_class.new(@resource)
       File.open(tmpfile, 'w') { |fh| fh.write("foo1\nfoo2\nexport HTTP_PROXY=foo\nfoo4\n") }
       @provider.destroy
diff --git a/spec/unit/puppet/provider/file_line/ruby_spec_use_cases.rb b/spec/unit/puppet/provider/file_line/ruby_spec_use_cases.rb
index 5114decb6..456ddd614 100644
--- a/spec/unit/puppet/provider/file_line/ruby_spec_use_cases.rb
+++ b/spec/unit/puppet/provider/file_line/ruby_spec_use_cases.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 provider_class = Puppet::Type.type(:file_line).provider(:ruby)
 #  These tests fail on windows when run as part of the rake task. Individually they pass
-describe provider_class, :unless => Puppet::Util::Platform.windows? do
+describe provider_class, unless: Puppet::Util::Platform.windows? do
   include PuppetlabsSpec::Files
 
   let :tmpfile do
@@ -16,9 +18,9 @@
   end
   let :resource do
     Puppet::Type::File_line.new({
-      :name => 'foo',
-      :path => tmpfile,
-      :line => 'foo',
+      name: 'foo',
+      path: tmpfile,
+      line: 'foo',
     }.merge(params))
   end
   let :provider do
@@ -35,9 +37,9 @@
     describe 'MODULES-5003' do
       let(:params) do
         {
-          :line => "*\thard\tcore\t0",
-          :match => "^[ \t]*\\*[ \t]+hard[ \t]+core[ \t]+.*",
-          :multiple => true,
+          line: "*\thard\tcore\t0",
+          match: "^[ \t]*\\*[ \t]+hard[ \t]+core[ \t]+.*",
+          multiple: true,
         }
       end
       let(:content) { "*	hard	core	90\n*	hard	core	10\n" }
@@ -54,9 +56,9 @@
     describe 'MODULES-5003 - one match, one line - just ensure the line exists' do
       let(:params) do
         {
-          :line => "*\thard\tcore\t0",
-          :match => "^[ \t]*\\*[ \t]+hard[ \t]+core[ \t]+.*",
-          :multiple => true,
+          line: "*\thard\tcore\t0",
+          match: "^[ \t]*\\*[ \t]+hard[ \t]+core[ \t]+.*",
+          multiple: true,
         }
       end
       let(:content) { "*	hard	core	90\n*	hard	core	0\n" }
@@ -69,11 +71,11 @@
     describe 'MODULES-5003 - one match, one line - replace all matches, even when line exists' do
       let(:params) do
         {
-          :line => "*\thard\tcore\t0",
-          :match => "^[ \t]*\\*[ \t]+hard[ \t]+core[ \t]+.*",
-          :multiple => true,
+          line: "*\thard\tcore\t0",
+          match: "^[ \t]*\\*[ \t]+hard[ \t]+core[ \t]+.*",
+          multiple: true,
 
-        }.merge(:replace_all_matches_not_matching_line => true)
+        }.merge(replace_all_matches_not_matching_line: true)
       end
       let(:content) { "*	hard	core	90\n*	hard	core	0\n" }
 
@@ -89,8 +91,8 @@
     describe 'MODULES-5651 - match, no line' do
       let(:params) do
         {
-          :line => 'LogLevel=notice',
-          :match => '^#LogLevel$',
+          line: 'LogLevel=notice',
+          match: '^#LogLevel$',
         }
       end
       let(:content) { "#LogLevel\nstuff" }
@@ -107,8 +109,8 @@
     describe 'MODULES-5651 - match, line' do
       let(:params) do
         {
-          :line => 'LogLevel=notice',
-          :match => '^#LogLevel$',
+          line: 'LogLevel=notice',
+          match: '^#LogLevel$',
         }
       end
       let(:content) { "#Loglevel\nLogLevel=notice\nstuff" }
@@ -121,8 +123,8 @@
     describe 'MODULES-5651 - no match, line' do
       let(:params) do
         {
-          :line => 'LogLevel=notice',
-          :match => '^#LogLevel$',
+          line: 'LogLevel=notice',
+          match: '^#LogLevel$',
         }
       end
       let(:content) { "LogLevel=notice\nstuff" }
diff --git a/spec/unit/puppet/type/anchor_spec.rb b/spec/unit/puppet/type/anchor_spec.rb
index c2d9779a6..9dc4ebd65 100644
--- a/spec/unit/puppet/type/anchor_spec.rb
+++ b/spec/unit/puppet/type/anchor_spec.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
-anchor = Puppet::Type.type(:anchor).new(:name => 'ntp::begin')
+anchor = Puppet::Type.type(:anchor).new(name: 'ntp::begin')
 
 describe anchor do
   it 'stringifies normally' do
diff --git a/spec/unit/puppet/type/file_line_spec.rb b/spec/unit/puppet/type/file_line_spec.rb
index 627bdf0b1..e506b133a 100644
--- a/spec/unit/puppet/type/file_line_spec.rb
+++ b/spec/unit/puppet/type/file_line_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'tempfile'
 describe Puppet::Type.type(:file_line) do
@@ -16,7 +18,7 @@
     end
   end
   let :file_line do
-    Puppet::Type.type(:file_line).new(:name => 'foo', :line => 'line', :path => tmp_path)
+    Puppet::Type.type(:file_line).new(name: 'foo', line: 'line', path: tmp_path)
   end
 
   it 'accepts a line' do
@@ -35,28 +37,28 @@
   it 'accepts a match regex that does not match the specified line' do
     expect {
       Puppet::Type.type(:file_line).new(
-        :name => 'foo', :path => my_path, :line => 'foo=bar', :match => '^bar=blah$',
+        name: 'foo', path: my_path, line: 'foo=bar', match: '^bar=blah$',
       )
     }.not_to raise_error
   end
   it 'accepts a match regex that does match the specified line' do
     expect {
       Puppet::Type.type(:file_line).new(
-        :name => 'foo', :path => my_path, :line => 'foo=bar', :match => '^\s*foo=.*$',
+        name: 'foo', path: my_path, line: 'foo=bar', match: '^\s*foo=.*$',
       )
     }.not_to raise_error
   end
   it 'accepts utf8 characters' do
     expect {
       Puppet::Type.type(:file_line).new(
-        :name => 'ƒồỗ', :path => my_path, :line => 'ƒồỗ=ьåя', :match => '^ьåя=βļάħ$',
+        name: 'ƒồỗ', path: my_path, line: 'ƒồỗ=ьåя', match: '^ьåя=βļάħ$',
       )
     }.not_to raise_error
   end
   it 'accepts double byte characters' do
     expect {
       Puppet::Type.type(:file_line).new(
-        :name => 'フーバー', :path => my_path, :line => 'この=それ', :match => '^この=ああ$',
+        name: 'フーバー', path: my_path, line: 'この=それ', match: '^この=ああ$',
       )
     }.not_to raise_error
   end
@@ -68,16 +70,16 @@
     expect { file_line[:path] = 'file' }.to raise_error(Puppet::Error, %r{File paths must be fully qualified})
   end
   it 'requires that a line is specified' do
-    expect { Puppet::Type.type(:file_line).new(:name => 'foo', :path => tmp_path) }.to raise_error(Puppet::Error, %r{line is a required attribute})
+    expect { Puppet::Type.type(:file_line).new(name: 'foo', path: tmp_path) }.to raise_error(Puppet::Error, %r{line is a required attribute})
   end
   it 'does not require that a line is specified when matching for absence' do
-    expect { Puppet::Type.type(:file_line).new(:name => 'foo', :path => tmp_path, :ensure => :absent, :match_for_absence => :true, :match => 'match') }.not_to raise_error # rubocop:disable Metrics/LineLength
+    expect { Puppet::Type.type(:file_line).new(name: 'foo', path: tmp_path, ensure: :absent, match_for_absence: :true, match: 'match') }.not_to raise_error
   end
   it 'although if a line is specified anyway when matching for absence it still works and the line is silently ignored' do
-    expect { Puppet::Type.type(:file_line).new(:name => 'foo', :path => tmp_path, :line => 'i_am_irrelevant', :ensure => :absent, :match_for_absence => :true, :match => 'match') }.not_to raise_error # rubocop:disable Metrics/LineLength
+    expect { Puppet::Type.type(:file_line).new(name: 'foo', path: tmp_path, line: 'i_am_irrelevant', ensure: :absent, match_for_absence: :true, match: 'match') }.not_to raise_error
   end
   it 'requires that a file is specified' do
-    expect { Puppet::Type.type(:file_line).new(:name => 'foo', :line => 'path') }.to raise_error(Puppet::Error, %r{path is a required attribute})
+    expect { Puppet::Type.type(:file_line).new(name: 'foo', line: 'path') }.to raise_error(Puppet::Error, %r{path is a required attribute})
   end
   it 'defaults to ensure => present' do
     expect(file_line[:ensure]).to eq :present
@@ -89,12 +91,12 @@
     expect(file_line[:encoding]).to eq 'UTF-8'
   end
   it 'accepts encoding => iso-8859-1' do
-    expect { Puppet::Type.type(:file_line).new(:name => 'foo', :path => tmp_path, :ensure => :present, :encoding => 'iso-8859-1', :line => 'bar') }.not_to raise_error
+    expect { Puppet::Type.type(:file_line).new(name: 'foo', path: tmp_path, ensure: :present, encoding: 'iso-8859-1', line: 'bar') }.not_to raise_error
   end
 
   it 'autorequires the file it manages' do
     catalog = Puppet::Resource::Catalog.new
-    file = Puppet::Type.type(:file).new(:name => tmp_path)
+    file = Puppet::Type.type(:file).new(name: tmp_path)
     catalog.add_resource file
     catalog.add_resource file_line
     relationship = file_line.autorequire.find do |rel|