test_inspect.py 文件源码

def test_cycle(self):
        def func1(): pass
        func1.__wrapped__ = func1
        with self.assertRaisesRegex(ValueError, 'wrapper loop'):
            inspect.unwrap(func1)

        def func2(): pass
        func2.__wrapped__ = func1
        func1.__wrapped__ = func2
        with self.assertRaisesRegex(ValueError, 'wrapper loop'):
            inspect.unwrap(func1)
        with self.assertRaisesRegex(ValueError, 'wrapper loop'):
            inspect.unwrap(func2)