add test coverage info

.gitignore

@@ -1,3 +1,4 @@
 .idea
 Gemfile.lock
-*.gem
+*.gem
+coverage

grape-order.gemspec

@@ -25,6 +25,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "bundler", "~> 1.3"
   spec.add_development_dependency "rake"
   spec.add_development_dependency "pry"
+  spec.add_development_dependency "simplecov"
   spec.add_development_dependency "rack-test"
   spec.add_development_dependency "rspec", "~> 2.9"
 end

spec/spec_helper.rb

@@ -1,11 +1,14 @@
 $LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
 $LOAD_PATH.unshift(File.dirname(__FILE__))
+require 'simplecov'
+SimpleCov.start
 require 'rspec'
 require 'grape'
 require 'grape-order'
 require 'active_record'
 require 'rack/test'
 
+
 # Requires supporting files with custom matchers and macros, etc,
 # in ./support/ and its subdirectories.
 Dir['#{File.dirname(__FILE__)}/support/**/*.rb'].each {|f| require f}