def METHOD_NAME(self):
    # Post a submission to the stub XQueue
    callback_url = 'http://127.0.0.1:8000/test_callback'
    expected_header = self._post_submission(
        callback_url, 'test_queuekey', 'test_queue',
        json.dumps({
            'student_info': 'test',
            'grader_payload': 'test',
            'student_response': 'test'
        })
    )
    # Check the response we receive
    # (Should be the default grading response)
    expected_body = json.dumps({'correct': True, 'score': 1, 'msg': '<div></div>'})
    self._check_grade_response(callback_url, expected_header, expected_body)