1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
import unittest
import pickle
import wrapt
class CustomObjectProxy(wrapt.ObjectProxy):
def __reduce_ex__(self, proto):
return (list, (self.__wrapped__,))
class TestObjectPickle(unittest.TestCase):
def test_pickle(self):
proxy = wrapt.ObjectProxy([1])
with self.assertRaises(NotImplementedError) as context:
data = pickle.dumps(proxy)
self.assertTrue(
str(context.exception) == "object proxy must define __reduce_ex__()"
)
def test_pickle_proxy(self):
proxy1 = CustomObjectProxy([1])
pickled = pickle.dumps(proxy1)
restored = pickle.loads(pickled)
self.assertEqual(proxy1.__wrapped__, restored)
if __name__ == "__main__":
unittest.main()
|
