def test_pre_update_validate_change_state_name(self):
        expected_suggestion_dict = self.suggestion_dict
        suggestion = suggestion_registry.SuggestionTranslateContent(
            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'], self.fake_date)
        change = {
            'cmd': exp_domain.CMD_ADD_WRITTEN_TRANSLATION,
            'state_name': 'State 1',
            'content_id': 'content',
            'language_code': 'hi',
            'content_html': '<p>This is a content.</p>',
            'translation_html': '<p>This is the updated translated html.</p>',
            'data_format': 'html'
        }
        with self.assertRaisesRegex(
            utils.ValidationError,
            'The new change state_name must be equal to Introduction'
        ):
            suggestion.pre_update_validate(exp_domain.ExplorationChange(change))