Method test_keys_contained

Lib/test/test_dict.py:707–709

(self)

            d1 == d2

    def test_keys_contained(self):
        self.helper_keys_contained(lambda x: x.keys())
        self.helper_keys_contained(lambda x: x.items())

    def helper_keys_contained(self, fn):
        # Test rich comparisons against dict key views, which should behave the