django.core.management.commands.test

https://github.com/SlashRoot/django/blob/master/django/core/management/commands/test.py#L52

This code relies on the get_runner() function from django.test.utils...

https://github.com/SlashRoot/django/blob/master/django/test/utils.py#L127

which will probably be a more difficult piece of code to modify.
