public function skip()
{
$this->skipIf(!Memcache::enabled(), 'The `Memcache` adapter is not enabled.');
$conn = new Memcached();
$conn->addServer('127.0.0.1', 11211);
$message = 'The memcached daemon does not appear to be running on 127.0.0.1:11211';
$result = $conn->getVersion();
$this->skipIf(!$result || current($result) === '255.255.255', $message);
unset($conn);
}