title: How to test custom django-admin commands
body: <p>I created <a href="http://docs.djangoproject.com/en/dev/howto/custom-management-commands/" rel="noreferrer">custom django-admin commands</a></p>
  
  <p>But, I don't know how to test it in <a href="http://docs.djangoproject.com/en/dev/topics/testing/" rel="noreferrer">standard django tests</a></p>