protected function __construct()
 {
     $this->releasesService = taoUpdate_models_classes_ReleasesService::singleton();
     $this->initReleaseService(RELEASES_MANIFEST);
     $this->backupService = taoUpdate_models_classes_BackupService::singleton();
     $this->shieldService = taoUpdate_models_classes_ShieldService::singleton();
     $this->generateKey();
 }
 /**
  * tests initialization
  */
 public function setUp()
 {
     TaoTestRunner::initTest();
     $this->service = taoUpdate_models_classes_BackupService::singleton();
 }