public void testRemoveListener() {
EventMulticaster<Integer> multicaster = new CachingEventMulticasterImpl<Integer>();
IntListener intListener = new IntListener();
multicaster.addListener(intListener);
assertEquals(0, intListener.value);
assertEquals(0, intListener.notifications);
multicaster = new CachingEventMulticasterImpl<Integer>();
intListener = new IntListener();
multicaster.broadcast(5);
multicaster.addListener(intListener);
assertEquals(5, intListener.value);
assertEquals(1, intListener.notifications);
multicaster.removeListener(intListener);
multicaster.broadcast(10);
assertEquals(5, intListener.value);
assertEquals(1, intListener.notifications);
}
