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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\EventDispatcher\Tests\Debug;
- use PHPUnit\Framework\TestCase;
- use Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher;
- use Symfony\Component\EventDispatcher\EventDispatcherInterface;
- use Symfony\Component\EventDispatcher\EventSubscriberInterface;
- use Symfony\Component\EventDispatcher\EventDispatcher;
- use Symfony\Component\EventDispatcher\Event;
- use Symfony\Component\Stopwatch\Stopwatch;
- class TraceableEventDispatcherTest extends TestCase
- {
- 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 testGetListeners()
- {
- $dispatcher = new EventDispatcher();
- $tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch());
- $tdispatcher->addListener('foo', $listener = function () {});
- $this->assertSame($dispatcher->getListeners('foo'), $tdispatcher->getListeners('foo'));
- }
- public function testHasListeners()
- {
- $dispatcher = new EventDispatcher();
- $tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch());
- $this->assertFalse($dispatcher->hasListeners('foo'));
- $this->assertFalse($tdispatcher->hasListeners('foo'));
- $tdispatcher->addListener('foo', $listener = function () {});
- $this->assertTrue($dispatcher->hasListeners('foo'));
- $this->assertTrue($tdispatcher->hasListeners('foo'));
- }
- public function testGetListenerPriority()
- {
- $dispatcher = new EventDispatcher();
- $tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch());
- $tdispatcher->addListener('foo', function () {}, 123);
- $listeners = $dispatcher->getListeners('foo');
- $this->assertSame(123, $tdispatcher->getListenerPriority('foo', $listeners[0]));
- // Verify that priority is preserved when listener is removed and re-added
- // in preProcess() and postProcess().
- $tdispatcher->dispatch('foo', new Event());
- $listeners = $dispatcher->getListeners('foo');
- $this->assertSame(123, $tdispatcher->getListenerPriority('foo', $listeners[0]));
- }
- public function testGetListenerPriorityReturnsZeroWhenWrappedMethodDoesNotExist()
- {
- $dispatcher = $this->getMockBuilder('Symfony\Component\EventDispatcher\EventDispatcherInterface')->getMock();
- $traceableEventDispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch());
- $traceableEventDispatcher->addListener('foo', function () {}, 123);
- $listeners = $traceableEventDispatcher->getListeners('foo');
- $this->assertSame(0, $traceableEventDispatcher->getListenerPriority('foo', $listeners[0]));
- }
- public function testAddRemoveSubscriber()
- {
- $dispatcher = new EventDispatcher();
- $tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch());
- $subscriber = new EventSubscriber();
- $tdispatcher->addSubscriber($subscriber);
- $listeners = $dispatcher->getListeners('foo');
- $this->assertCount(1, $listeners);
- $this->assertSame(array($subscriber, 'call'), $listeners[0]);
- $tdispatcher->removeSubscriber($subscriber);
- $this->assertCount(0, $dispatcher->getListeners('foo'));
- }
- public function testGetCalledListeners()
- {
- $dispatcher = new EventDispatcher();
- $tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch());
- $tdispatcher->addListener('foo', $listener = function () {});
- $this->assertEquals(array(), $tdispatcher->getCalledListeners());
- $this->assertEquals(array('foo.closure' => array('event' => 'foo', 'type' => 'Closure', 'pretty' => 'closure', 'priority' => 0)), $tdispatcher->getNotCalledListeners());
- $tdispatcher->dispatch('foo');
- $this->assertEquals(array('foo.closure' => array('event' => 'foo', 'type' => 'Closure', 'pretty' => 'closure', 'priority' => null)), $tdispatcher->getCalledListeners());
- $this->assertEquals(array(), $tdispatcher->getNotCalledListeners());
- }
- public function testGetCalledListenersNested()
- {
- $tdispatcher = null;
- $dispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
- $dispatcher->addListener('foo', function (Event $event, $eventName, $dispatcher) use (&$tdispatcher) {
- $tdispatcher = $dispatcher;
- $dispatcher->dispatch('bar');
- });
- $dispatcher->addListener('bar', function (Event $event) {});
- $dispatcher->dispatch('foo');
- $this->assertSame($dispatcher, $tdispatcher);
- $this->assertCount(2, $dispatcher->getCalledListeners());
- }
- public function testLogger()
- {
- $logger = $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock();
- $dispatcher = new EventDispatcher();
- $tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch(), $logger);
- $tdispatcher->addListener('foo', $listener1 = function () {});
- $tdispatcher->addListener('foo', $listener2 = function () {});
- $logger->expects($this->at(0))->method('debug')->with('Notified event "foo" to listener "closure".');
- $logger->expects($this->at(1))->method('debug')->with('Notified event "foo" to listener "closure".');
- $tdispatcher->dispatch('foo');
- }
- public function testLoggerWithStoppedEvent()
- {
- $logger = $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock();
- $dispatcher = new EventDispatcher();
- $tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch(), $logger);
- $tdispatcher->addListener('foo', $listener1 = function (Event $event) { $event->stopPropagation(); });
- $tdispatcher->addListener('foo', $listener2 = function () {});
- $logger->expects($this->at(0))->method('debug')->with('Notified event "foo" to listener "closure".');
- $logger->expects($this->at(1))->method('debug')->with('Listener "closure" stopped propagation of the event "foo".');
- $logger->expects($this->at(2))->method('debug')->with('Listener "closure" was not called for event "foo".');
- $tdispatcher->dispatch('foo');
- }
- public function testDispatchCallListeners()
- {
- $called = array();
- $dispatcher = new EventDispatcher();
- $tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch());
- $tdispatcher->addListener('foo', function () use (&$called) { $called[] = 'foo1'; }, 10);
- $tdispatcher->addListener('foo', function () use (&$called) { $called[] = 'foo2'; }, 20);
- $tdispatcher->dispatch('foo');
- $this->assertSame(array('foo2', 'foo1'), $called);
- }
- 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 testListenerCanRemoveItselfWhenExecuted()
- {
- $eventDispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
- $listener1 = function ($event, $eventName, EventDispatcherInterface $dispatcher) use (&$listener1) {
- $dispatcher->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');
- }
- }
- class EventSubscriber implements EventSubscriberInterface
- {
- public static function getSubscribedEvents()
- {
- return array('foo' => 'call');
- }
- }
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