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from __future__ import print_function |
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import unittest |
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import pickle |
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import wrapt |
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class CustomObjectProxy(wrapt.ObjectProxy): |
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def __reduce_ex__(self, proto): |
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return (list, (self.__wrapped__,)) |
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class TestObjectPickle(unittest.TestCase): |
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def test_pickle(self): |
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proxy = wrapt.ObjectProxy([1]) |
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with self.assertRaises(NotImplementedError) as context: |
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data = pickle.dumps(proxy) |
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self.assertTrue(str(context.exception) == |
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'object proxy must define __reduce_ex__()') |
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def test_pickle_proxy(self): |
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proxy1 = CustomObjectProxy([1]) |
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pickled = pickle.dumps(proxy1) |
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restored = pickle.loads(pickled) |
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self.assertEqual(proxy1.__wrapped__, restored) |
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if __name__ == '__main__': |
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unittest.main() |
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