title: Reuse scenarios by using mocha
body: <p>Recently I've started to use JS and mocha.</p>
  
  <p>I've wrote some tests already, but now I got to the point when I need to reuse my already written tests.</p>
  
  <p>I've tired to look for "it" / "describe" reusing, but didn't find something useful...</p>
  
  <p>Does anyone have some good example ?</p>
  
  <p>Thanks</p>