def METHOD_NAME(self):
    # Create an auto-auth user
    username = password = settings.AUTO_AUTH_USERNAME_PREFIX + uuid.uuid4().hex[0:20]
    User.objects.create_user(username, password=password)
    user_count = User.objects.count()
    # Call a command that should remove all auto-auth users
    delete_auto_auth_users()
    # Verify the user has been removed
    self.assertEqual(User.objects.count(), user_count - 1)