def __str__(self):
        return "".join([self.package, self.version or ""])
def test_base_class_get_target_entity_html_strings(self):
        with self.assertRaisesRegex(
            NotImplementedError,
            'Subclasses of BaseSuggestion should implement'
            ' get_target_entity_html_strings.'):
            self.base_suggestion.get_target_entity_html_strings()