protected function testUrl($url, $expectedStatusCode = 200)
 {
     $nbRedirects = 0;
     $this->startCounter($url);
     dm::resetStartTime();
     $this->browser->get($url);
     while (in_array($this->browser->getResponse()->getStatusCode(), array(301, 302))) {
         $this->browser->with('response')->begin()->isRedirected()->end()->followRedirect();
         $nbRedirects++;
         if ($nbRedirects > $this->options['maxRedirections']) {
             $this->browser->info('Too many redirections');
             break;
         }
     }
     $this->stopCounter();
     $this->browser->with('response')->begin()->isStatusCode($expectedStatusCode)->end();
     if ($this->options['validate']) {
         $this->browser->with('response')->begin()->isValid()->end();
     }
 }