Setting Up SimpleCov For Code Coverage In Rails Projects

Here’s a step-by-step guide to setting up simplecov with explanations of what each part of the code does:

  
  
  Step 1: Install the simplecov gem

Add the following line to your Gemfile:
gem ‘simplecov’
Then run bundle install to install the gem.
  
  
  Step 2: Create a test helper file

Create a file called spec_helper.rb or test_helper.rb in your project’s test directory if it does not exist.
  
  
  Step 3: Require the simplecov gem and start coverage

In the spec_helper.rb or test_helper.rb file, add the following code to require the simplecov gem and start coverage:

require ‘simpleco...