From 23f779f73afb4ef9be9f50774bfb6da03f38c0ec Mon Sep 17 00:00:00 2001
From: SHIBATA Hiroshi <hsbt@ruby-lang.org>
Date: Tue, 20 Jun 2017 10:19:07 +0900
Subject: [PATCH] Fixed broken test with frozen objects

---
 lib/rake/ext/string.rb             | 2 +-
 lib/rake/task.rb                   | 2 +-
 test/test_rake_application.rb      | 2 +-
 test/test_rake_path_map_partial.rb | 2 +-
 test/test_trace_output.rb          | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/rake/ext/string.rb b/lib/rake/ext/string.rb
index 7bd5064f9..c70236ae9 100644
--- a/lib/rake/ext/string.rb
+++ b/lib/rake/ext/string.rb
@@ -137,7 +137,7 @@ def pathmap_replace(patterns, &block)
     # This String extension comes from Rake
     def pathmap(spec=nil, &block)
       return self if spec.nil?
-      result = ""
+      result = "".dup
       spec.scan(/%\{[^}]*\}-?\d*[sdpfnxX%]|%-?\d+d|%.|[^%]+/) do |frag|
         case frag
         when "%f"
diff --git a/lib/rake/task.rb b/lib/rake/task.rb
index 077f37f4a..256571112 100644
--- a/lib/rake/task.rb
+++ b/lib/rake/task.rb
@@ -321,7 +321,7 @@ def set_arg_names(args)
     # Return a string describing the internal state of a task.  Useful for
     # debugging.
     def investigation
-      result = "------------------------------\n"
+      result = "------------------------------\n".dup
       result << "Investigating #{name}\n"
       result << "class: #{self.class}\n"
       result <<  "task needed: #{needed?}\n"
diff --git a/test/test_rake_application.rb b/test/test_rake_application.rb
index b52c484dc..141dd576f 100644
--- a/test/test_rake_application.rb
+++ b/test/test_rake_application.rb
@@ -37,7 +37,7 @@ def test_display_exception_details
 
   def test_display_exception_details_bad_encoding
     begin
-      raise "El Niño is coming!".force_encoding("US-ASCII")
+      raise "El Niño is coming!".dup.force_encoding("US-ASCII")
     rescue => ex
     end
 
diff --git a/test/test_rake_path_map_partial.rb b/test/test_rake_path_map_partial.rb
index f65428d71..9daf44ca5 100644
--- a/test/test_rake_path_map_partial.rb
+++ b/test/test_rake_path_map_partial.rb
@@ -3,7 +3,7 @@
 
 class TestRakePathMapPartial < Rake::TestCase
   def test_pathmap_partial
-    @path = "1/2/file"
+    @path = "1/2/file".dup
     def @path.call(n)
       pathmap_partial(n)
     end
diff --git a/test/test_trace_output.rb b/test/test_trace_output.rb
index 92de3058b..34dab6162 100644
--- a/test/test_trace_output.rb
+++ b/test/test_trace_output.rb
@@ -9,7 +9,7 @@ class PrintSpy
     attr_reader :result, :calls
 
     def initialize
-      @result = ""
+      @result = "".dup
       @calls = 0
     end