Method test_lru_cache_weakrefable

Lib/test/test_functools.py:2108–2135

(self)

        self.assertEqual(f.cache_parameters(), {'maxsize': 1000, "typed": True})

    def test_lru_cache_weakrefable(self):
        @self.module.lru_cache
        def test_function(x):
            return x

        class A:
            @self.module.lru_cache
            def test_method(self, x):
                return (self, x)

            @staticmethod
            @self.module.lru_cache
            def test_staticmethod(x):
                return (self, x)

        refs = [weakref.ref(test_function),
                weakref.ref(A.test_method),
                weakref.ref(A.test_staticmethod)]

        for ref in refs:
            self.assertIsNotNone(ref())

        del A
        del test_function
        gc.collect()

        for ref in refs:
            self.assertIsNone(ref())

    def test_common_signatures(self):
        def orig(a, /, b, c=True): ...