'L{MemCacheProtocol.get} handles an additional cas result when
C{withIdentifier} is C{True} and forward it in the resulting
L{Deferred}.'

def test_gets(self):

    return self._test(self.proto.get('foo', True), 'gets    foo\r\n', 'VALUE    foo    0    3    1234\r\nbar\r\nEND\r\n', (0, '1234', 'bar'))
