test_00_PythonUtils.py 文件源码

def test_WeakObjectCallback(self):
        """
        Test that the weak object callback occurs as expected.
        """
        obj = TestClass()

        results = set()
        def callback(target):
            results.add(id(target))

        ref = weakobj.objectref(obj, callback)
        expected = set([id(ref)])
        del obj

        self.assertEqual(results, expected)