Method test_pickle

Lib/test/test_genericalias.py:433–443

(self)

            MyType[int]

    def test_pickle(self):
        aliases = [GenericAlias(list, T)] + _UNPACKED_TUPLES
        for alias in aliases:
            for proto in range(pickle.HIGHEST_PROTOCOL + 1):
                with self.subTest(alias=alias, proto=proto):
                    s = pickle.dumps(alias, proto)
                    loaded = pickle.loads(s)
                    self.assertEqual(loaded.__origin__, alias.__origin__)
                    self.assertEqual(loaded.__args__, alias.__args__)
                    self.assertEqual(loaded.__parameters__, alias.__parameters__)
                    self.assertEqual(type(loaded), type(alias))

    def test_copy(self):
        class X(list):