def test_delete_versioned_submission_past(self):
        """Deleting an old versioned ``Submission`` should fail"""
        submission_b = self.create_submission(title='b')
        self.parent.update_version(submission_b)
        self.client.login(username='alex', password='alex')
        response = self.client.post(self.delete_path, {})
        assert_equal(response.status_code, 404)