def test_decrementVal(self):
        return self._test(self.proto.decrement("foo", 3), "decr foo 3\r\n",
            "5\r\n", 5)
L{MemCacheProtocol.decrement} takes an optional argument C{value} which
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/test/test_memcache.py/CommandMixin.test_decrementVal