Method test_pickling

Lib/test/test_defaultdict.py:143–149

(self)

        self.assertRaises(TypeError, defaultdict, {})

    def test_pickling(self):
        d = defaultdict(int)
        d[1]
        for proto in range(pickle.HIGHEST_PROTOCOL + 1):
            s = pickle.dumps(d, proto)
            o = pickle.loads(s)
            self.assertEqual(d, o)

    def test_union(self):
        i = defaultdict(int, {1: 1, 2: 2})