Method test_bundled_protocol_instance_works

Lib/test/test_typing.py:4365–4373

(self)

        self.assertNotIsSubclass(str, typing.SupportsIndex)

    def test_bundled_protocol_instance_works(self):
        self.assertIsInstance(0, typing.SupportsAbs)
        class C1(typing.SupportsInt):
            def __int__(self) -> int:
                return 42
        class C2(C1):
            pass
        c = C2()
        self.assertIsInstance(c, C1)

    def test_collections_protocols_allowed(self):
        @runtime_checkable