/**
  * External use only for tests
  * @internal
  *
  * @param int $id
  * @return Queue
  */
 public function createQueue($id)
 {
     $queue = new Queue($this->backend, $id);
     $queue->setNumberOfRequestsToProcessAtSameTime($this->numRequestsToProcessInBulk);
     return $queue;
 }
 private function addRequestSetsToQueue($numRequestSets)
 {
     for ($index = 1; $index <= $numRequestSets; $index++) {
         $this->queue->addRequestSet($this->buildRequestSetWithIdSite(1, $index));
     }
 }