/**
  * Tests observer class when initialized by accessor methods.
  */
 public function testObserverAccessors()
 {
     // Create observer with null args, then
     // use accessors to set notification method and context
     $observer = new Observer('', '');
     $observer->setNotifyContext($this);
     $observer->setNotifyMethod('observerTestMethod');
     // create a test event, setting a payload value and notify
     // the observer with it. since the observer is this class
     // and the notification method is observerTestMethod,
     // successful notification will result in our local
     // observerTestVar being set to the value we pass in
     // on the note body.
     $note = new Notification('ObserverTestNote', 10);
     $observer->notifyObserver($note);
     // test assertions
     $this->assertTrue($this->observerTestVar == 10, "Expecting observerTestVar = 10");
 }