test_weakref.py 文件源码

def test_callable_proxy(self):
        o = Callable()
        ref1 = weakref.proxy(o)

        self.check_proxy(o, ref1)

        self.assertTrue(type(ref1) is weakref.CallableProxyType,
                     "proxy is not of callable type")
        ref1('twinkies!')
        self.assertTrue(o.bar == 'twinkies!',
                     "call through proxy not passed through to original")
        ref1(x='Splat.')
        self.assertTrue(o.bar == 'Splat.',
                     "call through proxy not passed through to original")

        # expect due to too few args
        self.assertRaises(TypeError, ref1)

        # expect due to too many args
        self.assertRaises(TypeError, ref1, 1, 2, 3)