public static function tearDownAfterClass()
 {
     if (!self::$skipped) {
         $binaryFinder = new ExecutableFinder();
         $searchd = $binaryFinder->find('searchd');
         self::$searchd = new Process($searchd . ' --stop -c ' . self::$config);
         self::$searchd->run();
         unlink(self::$config);
     }
     self::$skipped = self::$config = self::$searchd = null;
     parent::tearDownAfterClass();
 }