test___future__.py 文件源码

def test_names(self):
        # Verify that all_feature_names appears correct.
        given_feature_names = features[:]
        for name in dir(__future__):
            obj = getattr(__future__, name, None)
            if obj is not None and isinstance(obj, __future__._Feature):
                self.assertTrue(
                    name in given_feature_names,
                    "%r should have been in all_feature_names" % name
                )
                given_feature_names.remove(name)
        self.assertEqual(len(given_feature_names), 0,
               "all_feature_names has too much: %r" % given_feature_names)