public static function setUpBeforeClass()
 {
     $client = new NextCallerPlatformClient(null, null, true);
     $mocker = new \Guzzle\Plugin\Mock\MockPlugin();
     $mocker->addResponse(new \Guzzle\Http\Message\Response(200, array(), self::JSON_RESPONSE));
     $client->addSubscriber($mocker);
     self::$client = $client;
     self::$mock = $mocker;
 }