title: How can I suppress PHPCS warnings using comments?
body: <p>My <code>TestMyClass.php</code> has two class definitions in the same file (unit testing class), and PHP Code Sniffer complains about <em>each class must be in a file by itself</em>. How can I suppress this warning?</p>
  
  <pre><code>class MyClassImpl implements MyInterface
  {
      // ...
  }
  
  class MyClassTest extends \PHPUnit_Framework_TestCase
  {
      // ...
  }
  </code></pre>