'Verifies default sort parameters.'

def test_process_sort_params_defaults(self):

    (sort_keys, sort_dirs) = sqlalchemy_api.process_sort_params([], [])
    self.assertEqual(['created_at', 'id'], sort_keys)
    self.assertEqual(['asc', 'asc'], sort_dirs)
    (sort_keys, sort_dirs) = sqlalchemy_api.process_sort_params(None, None)
    self.assertEqual(['created_at', 'id'], sort_keys)
    self.assertEqual(['asc', 'asc'], sort_dirs)
