Method test_pickle_recursive

Lib/test/test_deque.py:843–862

(self)

                    self.assertNotHasAttr(e, 'y')

    def test_pickle_recursive(self):
        for proto in range(pickle.HIGHEST_PROTOCOL + 1):
            for d in Deque('abc'), Deque('abc', 3):
                d.append(d)

                e = pickle.loads(pickle.dumps(d, proto))
                self.assertNotEqual(id(e), id(d))
                self.assertEqual(type(e), type(d))
                self.assertEqual(e.maxlen, d.maxlen)
                dd = d.pop()
                ee = e.pop()
                self.assertEqual(id(ee), id(e))
                self.assertEqual(e, d)

                d.x = d
                e = pickle.loads(pickle.dumps(d, proto))
                self.assertEqual(id(e.x), id(e))

            for d in DequeWithBadIter('abc'), DequeWithBadIter('abc', 2):
                self.assertRaises(TypeError, pickle.dumps, d, proto)

    def test_weakref(self):
        d = deque('gallahad')