public static function setUpBeforeClass()
 {
     parent::setUpBeforeClass();
     self::bootKernel();
     $cachedir = self::$kernel->getCacheDir();
     static::$nonceDir = $cachedir . '/nonceDir';
     $fs = new Filesystem();
     $fs->mkdir(self::$nonceDir);
 }
 public static function setUpBeforeClass()
 {
     parent::setUpBeforeClass();
     static::bootKernel();
     static::$container = static::$kernel->getContainer();
 }