Method test_items_symmetric_difference

Lib/test/test_dict.py:807–815

(self)

        self.assertEqual(k1 ^ k3, {(1,1), (2,2), (4,4)})

    def test_items_symmetric_difference(self):
        rr = random.randrange
        for _ in range(100):
            left = {x:rr(3) for x in range(20) if rr(2)}
            right = {x:rr(3) for x in range(20) if rr(2)}
            with self.subTest(left=left, right=right):
                expected = set(left.items()) ^ set(right.items())
                actual = left.items() ^ right.items()
                self.assertEqual(actual, expected)

    def test_dictview_mixed_set_operations(self):
        # Just a few for .keys()