def test_effect_of_strategy(self):
        self.responses_test([C, C], [C, C], [D])
        self.responses_test([C, C, D, D], [C, C, C, D], [C])
Will try defecting after two turns of cooperation, but will stop if punished.
dataset/ETHPy150Open Axelrod-Python/Axelrod/axelrod/tests/unit/test_titfortat.py/TestSneakyTitForTat.test_effect_of_strategy