title: How to use the built-in unit testing module?
body: <p>There seems to be a built-in <a href="https://github.com/kohana/unittest" rel="nofollow">unit test module</a> in Kohana 3.x.</p>
  
  <p>How can I use this? I can't find any official documentation regarding this module and even Google doesn't provide good articles.</p>
  
  <p>I would appreciate good links or any kind <code>Hello, World!</code> unit test example!</p>