Method test_issubclass

Lib/test/test_genericalias.py:415–419

(self)

            isinstance([], list[str])

    def test_issubclass(self):
        class L(list): ...
        self.assertIsSubclass(L, list)
        with self.assertRaises(TypeError):
            issubclass(L, list[str])

    def test_type_generic(self):
        t = type[int]