Restore Rakefile

.rubocop.yml

@@ -4,5 +4,3 @@ AllCops:
   - vendor/**/*
 Documentation:
   Enabled: false
-Metrics/ClassLength:
-  Max: 150

Rakefile

@@ -0,0 +1,10 @@
+# coding: utf-8
+
+require 'bundler/gem_tasks'
+require 'rspec/core/rake_task'
+require 'rubocop/rake_task'
+
+RSpec::Core::RakeTask.new
+RuboCop::RakeTask.new
+
+task default: %w(spec rubocop)

spec/stoplight/notifier/io_spec.rb

@@ -55,8 +55,8 @@
     it 'writes the message' do
       error = nil
       notifier.notify(light, from_color, to_color, error)
-      expect(io.string)
-        .to eql(notifier.formatter.call(light, from_color, to_color, error) + "\n")
+      message = notifier.formatter.call(light, from_color, to_color, error)
+      expect(io.string).to eql("#{message}\n")
     end
   end
 end

stoplight.gemspec

@@ -20,7 +20,10 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency 'coveralls', '~> 0.7'
   gem.add_development_dependency 'fakeredis', '~> 0.5'
   gem.add_development_dependency 'hipchat', '~> 1.4'
+  gem.add_development_dependency 'rake', '~> 10.3'
   gem.add_development_dependency 'redis', '~> 3.1'
   gem.add_development_dependency 'rspec', '~> 3.1'
+  gem.add_development_dependency 'rubocop', '~> 0.27'
   gem.add_development_dependency 'timecop', '~> 0.7'
+  gem.add_development_dependency 'yard', '~> 0.8'
 end