  behavior. This class defines the ``run_tests()`` entry point, plus a
  selection of other methods that are used to by ``run_tests()`` to set up,
  execute and tear down the test suite.
  
  .. class:: DiscoverRunner(pattern='test*.py', top_level=None, verbosity=1, interactive=True, failfast=True, keepdb=False **kwargs)
  
      ``DiscoverRunner`` will search for tests in any file matching ``pattern``.
  
      ``top_level`` can be used to specify the directory containing your
      top-level Python modules. Usually Django can figure this out automatically,
 
</s> remove * Added the ability to preserve the test database by adding the
  :djadminopt:`--keepdb` flag.
 </s> add * Added options to the :djadmin:`test` command to preserve the test database
  (:djadminopt:`--keepdb`) and to run the test cases in reverse order
  (:djadminopt:`--reverse`). </s> remove         The ``keepdb`` argument was added.
 </s> add         The ``keepdb`` and the ``reverse`` arguments were added.
.. class:: DiscoverRunner(pattern='test*.py', top_level=None, verbosity=1, interactive=True, failfast=True, keepdb=False, reverse=False, **kwargs)
  behavior. This class defines the ``run_tests()`` entry point, plus a
  selection of other methods that are used to by ``run_tests()`` to set up,
  execute and tear down the test suite.
  
.. class:: DiscoverRunner(pattern='test*.py', top_level=None, verbosity=1, interactive=True, failfast=True, keepdb=False, reverse=False, **kwargs)
  
      ``DiscoverRunner`` will search for tests in any file matching ``pattern``.
  
      ``top_level`` can be used to specify the directory containing your
      top-level Python modules. Usually Django can figure this out automatically,
keep keep keep keep replace keep keep keep keep keep
 Fixed #23742 -- Added an option to reverse tests order.

This is useful for debugging side effects affecting tests that
are usually executed before a given test. Full suite and pair
tests sort cases more or less deterministically, thus some test
cross-dependencies are easier to reveal by reversing the order.

Thanks Preston Timmons for the review. 
docs/topics/testing/advanced.txt