protected function setUp()
 {
     parent::setUp();
     $this->dir = sys_get_temp_dir() . '/unit-test.meta/';
     if (!is_dir($this->dir)) {
         mkdir($this->dir, 0755);
     }
 }
 protected function setUp()
 {
     parent::setUp();
     $this->sh = new BlockShmop($this->getDriver()->getIdByKey(self::DATE_KEY), 10);
     $this->sh->delete();
 }