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    <p>This question is similar to <a href="https://stackoverflow.com/questions/4788288/how-to-run-all-the-tests-with-minitest">How to run all tests with minitest?</a></p> <p>Using Ruby 1.9.3 and Rake 0.9.2.2, given a directory layout like this:</p> <pre><code>Rakefile lib/alpha.rb spec/alpha_spec.rb </code></pre> <p>Here is what <code>alpha_spec.rb</code> might look like:</p> <pre><code>require 'minitest/spec' require 'minitest/autorun' # arranges for minitest to run (in an exit handler, so it runs last) require 'alpha' describe 'Alpha' do it 'greets you by name' do Alpha.new.greet('Alice').must_equal('hello, Alice') end end </code></pre> <p>And here's <code>Rakefile</code></p> <pre><code>require 'rake' require 'rake/testtask' Rake::TestTask.new do |t| t.pattern = 'spec/**/*_spec.rb' end </code></pre> <p>You can run</p> <ul> <li><strong>all tests:</strong> <code>rake test</code></li> <li><strong>one test:</strong> <code>ruby -Ilib spec/alpha_spec.rb</code></li> </ul> <hr> <p>I don't know if using a <code>spec_helper.rb</code> with minitest is common or not. There does not appear to be a convenience method for loading one. Add this to the Rakefile:</p> <pre><code>require 'rake' require 'rake/testtask' Rake::TestTask.new do |t| t.pattern = 'spec/**/*_spec.rb' t.libs.push 'spec' end </code></pre> <p>Then <code>spec/spec_helper.rb</code> can contain various redundant things:</p> <pre><code>require 'minitest/spec' require 'minitest/autorun' require 'alpha' </code></pre> <p>And <code>spec/alpha_spec.rb</code> replaces the redundant parts with:</p> <pre><code>require 'spec_helper' </code></pre> <ul> <li><strong>all tests:</strong> <code>rake test</code></li> <li><strong>one test:</strong> <code>ruby -Ilib -Ispec spec/alpha_spec.rb</code></li> </ul>
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    1. POHow to set up MiniTest?
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    1. COVery helpful and very thorough, thanks Patrick!
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