def METHOD_NAME(self):
    q = QuestionFactory.create(required=True)
    self.assertEqual(AnswerService.validate_answer_payload('BLAH', q), 'BLAH')
    with self.assertRaises(django_validation_error):
        AnswerService.validate_answer_payload(None, q)
    with self.assertRaises(django_validation_error):
        AnswerService.validate_answer_payload(['NOT', 'A', 'STRING'], q)