'When getting a non-available key with L{MemCacheProtocol.getMultiple}
when C{withIdentifier} is C{True}, the other keys are retrieved
correctly, and the non-available key gets a tuple of C{0} as flag,
L{None} as value, and an empty cas value.'

def test_getsMultipleWithEmpty(self):

    return self._test(self.proto.getMultiple(['foo', 'bar'], True), 'gets    foo    bar\r\n', 'VALUE    foo    0    3    1234\r\negg\r\nEND\r\n', {'bar': (0, '', None), 'foo': (0, '1234', 'egg')})
