test_set.py 文件源码

def test_iterator_pickling(self):
        for proto in range(pickle.HIGHEST_PROTOCOL + 1):
            itorg = iter(self.s)
            data = self.thetype(self.s)
            d = pickle.dumps(itorg, proto)
            it = pickle.loads(d)
            # Set iterators unpickle as list iterators due to the
            # undefined order of set items.
            # self.assertEqual(type(itorg), type(it))
            self.assertIsInstance(it, collections.abc.Iterator)
            self.assertEqual(self.thetype(it), data)

            it = pickle.loads(d)
            try:
                drop = next(it)
            except StopIteration:
                continue
            d = pickle.dumps(it, proto)
            it = pickle.loads(d)
            self.assertEqual(self.thetype(it), data - self.thetype((drop,)))