public function testPassingNullValueForEventCollectionResetsInstance()
 {
     $events = Zend_EventManager_GlobalEventManager::getEventCollection();
     $this->assertTrue($events instanceof Zend_EventManager_EventManager);
     Zend_EventManager_GlobalEventManager::setEventCollection(null);
     $events2 = Zend_EventManager_GlobalEventManager::getEventCollection();
     $this->assertTrue($events2 instanceof Zend_EventManager_EventManager);
     $this->assertNotSame($events, $events2);
 }