def test_shouldLogEventYesYesNoFilter(self):
        """
        Series of filters with positive, positive and negative predicate
        results.
        """
        self.assertEqual(
            self.filterWith(["twoPlus", "twoMinus", "no"]),
            [0, 1, 2, 3]
        )

        Series of filters with positive, positive and negative predicate
        results.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/logger/test/test_filter.py