def test_get_target_entity_html_strings_returns_expected_strings(self):
        change_dict = {
            'cmd': exp_domain.CMD_EDIT_STATE_PROPERTY,
            'property_name': exp_domain.STATE_PROPERTY_CONTENT,
            'state_name': 'state_1',
            'new_value': {
                'content_id': 'content',
                'html': 'new suggestion content'
            },
            'old_value': {
                'content_id': 'content',
                'html': 'Old content.'
            }
        }
        suggestion = suggestion_registry.SuggestionEditStateContent(
            self.suggestion_dict['suggestion_id'],
            self.suggestion_dict['target_id'],
            self.suggestion_dict['target_version_at_submission'],
            self.suggestion_dict['status'], self.author_id,
            self.reviewer_id, change_dict,
            self.suggestion_dict['score_category'],
            self.suggestion_dict['language_code'], False, self.fake_date)

        actual_outcome_list = suggestion.get_target_entity_html_strings()
        expected_outcome_list = [u'Old content.']
        self.assertEqual(expected_outcome_list, actual_outcome_list)