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Unit 3

Chapter 4: SimpleCov

In this chapter, you will add the SimpleCov gem, which provides coverage reports.

New Branch

Enter the command "git checkout -b 03-04-simplecov".

Gemfile

  • Add the following lines to the end of the Gemfile:

# SimpleCov (provides % coverage)
gem 'simplecov', require: false, group: :test
  • Enter the command "sh git_check.sh".
  • Enter the following commands:
git add .
git commit -m "Installed simplecov gem"

Configuration

  • Add the following lines to the BEGINNING of the test/test_helper.rb file:
# BEGIN: SimpleCov
if ENV['EXEC_SIMPLE_COV'] == 'true'
  require 'simplecov'
  SimpleCov.start 'rails' do
    add_filter 'app/channels/*'
    add_filter 'app/jobs/*'
    add_filter 'test/*'
  end
  puts 'required simplecov'
end
# END: SimpleCov
  • In the file build_fast.sh, replace the "rails test" section with the following code:
# Provide coverage report
echo '---------------------------------'
echo "EXEC_SIMPLE_COV='true' rails test"
EXEC_SIMPLE_COV='true' rails test
  • Add the following lines to the end of .gitignore:
# Omit SimpleCov coverage reports
coverage
  • Enter the command "sh git_check.sh". Don't worry about the lack of coverage for the application controller, helper, mailer, and controller just yet. These topics will be tackled later.
  • Enter the following commands:
git add .
git commit -m "Configured SimpleCov"
git push origin 03-04-simplecov

Wrapping up

  • Go to the GitHub repository and click on the "Compare and pull request" button for this branch.
  • Accept this pull request to merge it with the master branch, but do NOT delete this branch.
  • Enter the following commands:
git checkout master
git pull
sh heroku.sh