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');
}
public function testAddListenerNested()
{
$called1 = false;
$called2 = false;
$dispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
$dispatcher->addListener('my-event', function () use($dispatcher, &$called1, &$called2) {
$called1 = true;
$dispatcher->addListener('my-event', function () use(&$called2) {
$called2 = true;
});
});
$dispatcher->dispatch('my-event');
$this->assertTrue($called1);
$this->assertFalse($called2);
$dispatcher->dispatch('my-event');
$this->assertTrue($called2);
}
public function testDispatchNested()
{
$dispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
$loop = 1;
$dispatcher->addListener('foo', $listener1 = function () use($dispatcher, &$loop) {
++$loop;
if (2 == $loop) {
$dispatcher->dispatch('foo');
}
});
$dispatcher->dispatch('foo');
}
public function testDispatchReusedEventNested()
{
$nestedCall = false;
$dispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
$dispatcher->addListener('foo', function (Event $e) use($dispatcher) {
$dispatcher->dispatch('bar', $e);
});
$dispatcher->addListener('bar', function (Event $e) use(&$nestedCall) {
$nestedCall = true;
});
$this->assertFalse($nestedCall);
$dispatcher->dispatch('foo');
$this->assertTrue($nestedCall);
}
public function testDispatchCallListeners()
{
$called = array();
$dispatcher = new EventDispatcher();
$tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch());
$tdispatcher->addListener('foo', $listener1 = function () use(&$called) {
$called[] = 'foo1';
});
$tdispatcher->addListener('foo', $listener2 = function () use(&$called) {
$called[] = 'foo2';
});
$tdispatcher->dispatch('foo');
$this->assertEquals(array('foo1', 'foo2'), $called);
}
