title: Why django runs its own tests when doing ./manage.py test
body: <p>In django 1.4. I have now created a few apps, each of them contains tests.py.</p>
  
  <p>But when I do <code>./manage.py test</code>, django runs its own 412 tests, but I want to skip them all only run my test cases. How can I configure for this?</p>