test_gc.py 文件源码

def test_is_tracked(self):
        # Atomic built-in types are not tracked, user-defined objects and
        # mutable containers are.
        # NOTE: types with special optimizations (e.g. tuple) have tests
        # in their own test files instead.
        self.assertFalse(gc.is_tracked(None))
        self.assertFalse(gc.is_tracked(1))
        self.assertFalse(gc.is_tracked(1.0))
        self.assertFalse(gc.is_tracked(1.0 + 5.0j))
        self.assertFalse(gc.is_tracked(True))
        self.assertFalse(gc.is_tracked(False))
        self.assertFalse(gc.is_tracked(b"a"))
        self.assertFalse(gc.is_tracked("a"))
        self.assertFalse(gc.is_tracked(bytearray(b"a")))
        self.assertFalse(gc.is_tracked(type))
        self.assertFalse(gc.is_tracked(int))
        self.assertFalse(gc.is_tracked(object))
        self.assertFalse(gc.is_tracked(object()))

        class UserClass:
            pass
        self.assertTrue(gc.is_tracked(gc))
        self.assertTrue(gc.is_tracked(UserClass))
        self.assertTrue(gc.is_tracked(UserClass()))
        self.assertTrue(gc.is_tracked([]))
        self.assertTrue(gc.is_tracked(set()))