def test_validate_language_code_fails_when_language_codes_do_not_match(
            self):
        expected_suggestion_dict = self.suggestion_dict
        suggestion = suggestion_registry.SuggestionEditStateContent(
            expected_suggestion_dict['suggestion_id'],
            expected_suggestion_dict['target_id'],
            expected_suggestion_dict['target_version_at_submission'],
            expected_suggestion_dict['status'], self.author_id,
            self.reviewer_id, expected_suggestion_dict['change'],
            expected_suggestion_dict['score_category'],
            expected_suggestion_dict['language_code'], False, self.fake_date)
        suggestion.validate()

        suggestion.language_code = 'wrong_language_code'

        with self.assertRaisesRegex(
            utils.ValidationError,
            'Expected language_code to be None, received wrong_language_code'
        ):
            suggestion.validate()