def test_rightHandArgumentImplementsUnequality(self):
        """
        The right-hand argument to the non-equality operator is given a
        chance to determine the result of the operation if it is of a type
        unrelated to the L{FancyEqMixin}-based instance on the left-hand
        side.
        """
        self.assertFalse(Record(1, 2) != EqualToEverything())
        self.assertTrue(Record(1, 2) != EqualToNothing())

        The right-hand argument to the non-equality operator is given a
        chance to determine the result of the operation if it is of a type
        unrelated to the L{FancyEqMixin}-based instance on the left-hand
        side.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/python/test/test_util.py