Rails Kitchen

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Check Test Coverage With SimpleCov Gem

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SimpleCov is a code coverage analysis tool for Ruby. It uses Ruby’s built-in Coverage library to gather code coverage data, but makes processing its results much easier by providing a clean API to filter, group, merge, format, and display those results, giving you a complete code coverage suite that can be set up with just a couple lines of code.

Getting started
Add SimpleCov to your Gemfile and bundle install: 
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gem 'simplecov', :require => false, :group => :test
Load and launch SimpleCov at the very top of your spec_helper.rb (or test/test_helper.rb, cucumber env.rb, or whatever your preferred test framework uses): 
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require 'simplecov'
  
Spork.each_run do
  if ENV['DRB']
    require 'simplecov'
    SimpleCov.start 'rails'  if ENV["COVERAGE"]
    end
end
Due to this code SimpleCov.start if ENV[“COVERAGE”] SimpleCov will only run if you execute your tests like this: 
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COVERAGE=true bundle exec rspec
Run your tests, open up coverage/index.html in your browser you can see detailed report on test coverage.

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