Today I Learned How to replace minitest-reporters with minitest-rg in the Ruby on Rails Tutorial 3rd ed

May - 2015
TODO: Figure out why this isn't working in MDX


[Michael Hartl](http://www.michaelhartl.com) uses the [minitest-reporters](https://github.com/kern/minitest-reporters) gem to colorize test results in the third edition of the excellent [Ruby on Rails Tutorail](https://www.railstutorial.org). I prefer [minitest-rg](https://github.com/blowmage/minitest-rg). To use it instead:

{% capture codeA %}
ruby{numberLines: true}
require 'minitest/reporters'
Minitest::Reporters.use!

{% endcapture %}


html
<ol>
  <li>
    Remove (or just don't add) these lines to <code>test/test_helper.rb</code>:<br /><br />

require 'minitest/reporters'
Minitest::Reporters.use!

  </li>
  <li>
    Replace this section of the <code>Gemfile</code>:<br /><br />

group :test do
  gem 'minitest-reporters', '1.0.5'
  gem 'mini_backtrace',     '0.1.3'
  gem 'guard-minitest',     '2.3.1'
end

    <br />
    With this:<br />

group :test do
  gem 'minitest',           '5.7.0'
  gem 'mini_backtrace',     '0.1.3'
  gem 'guard-minitest',     '2.3.1'
  gem 'minitest-rg',        '5.1.0'
end

    The order is important. Calling <code>minitest-rg</code> earlier causes problems. 

  </li>
           
</ol>