Imbo\EventListener\Cors::subscribe PHP Method

    public function subscribe(EventInterface $event)
    {
        $events = [];
        // Enable the event listener only for resources and methods specified
        foreach ($this->params['allowedMethods'] as $resource => $methods) {
            foreach ($methods as $method) {
                $eventName = $resource . '.' . strtolower($method);
                $events[$eventName] = ['invoke' => 1000];
            }
            // Always enable the listener for the OPTIONS method
            $eventName = $resource . '.options';
            $events[$eventName] = ['options' => 20];
        }
        $manager = $event->getManager();
        $manager->addCallbacks($event->getHandler(), $events);
        // Add OPTIONS to the Allow header
        $event->getResponse()->headers->set('Allow', 'OPTIONS', false);
    }

 /**
  * @dataProvider getAllowedMethodsParams
  * @covers Imbo\EventListener\Cors::subscribe
  */
 public function testWillSubscribeToTheCorrectEventsBasedOnParams($params, $events)
 {
     $listener = new Cors($params);
     $headers = $this->getMock('Symfony\\Component\\HttpFoundation\\ResponseHeaderBag');
     $headers->expects($this->once())->method('set')->with('Allow', 'OPTIONS', false);
     $response = $this->getMock('Imbo\\Http\\Response\\Response');
     $response->headers = $headers;
     $manager = $this->getMock('Imbo\\EventManager\\EventManager');
     $manager->expects($this->once())->method('addCallbacks')->with('handler', $events);
     $event = $this->getMock('Imbo\\EventManager\\EventInterface');
     $event->expects($this->once())->method('getManager')->will($this->returnValue($manager));
     $event->expects($this->once())->method('getHandler')->will($this->returnValue('handler'));
     $event->expects($this->once())->method('getResponse')->will($this->returnValue($response));
     $listener->subscribe($event);
 }