public function testAddRemoveListener()
{
$dispatcher = new EventDispatcher();
$tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch());
$tdispatcher->addListener('foo', $listener = function () {
});
$listeners = $dispatcher->getListeners('foo');
$this->assertCount(1, $listeners);
$this->assertSame($listener, $listeners[0]);
$tdispatcher->removeListener('foo', $listener);
$this->assertCount(0, $dispatcher->getListeners('foo'));
}
public function testListenerCanRemoveItselfWhenExecuted()
{
$eventDispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
$listener1 = function () use($eventDispatcher, &$listener1) {
$eventDispatcher->removeListener('foo', $listener1);
};
$eventDispatcher->addListener('foo', $listener1);
$eventDispatcher->addListener('foo', function () {
});
$eventDispatcher->dispatch('foo');
$this->assertCount(1, $eventDispatcher->getListeners('foo'), 'expected listener1 to be removed');
}
