tikiwiki/packages/tiki-pkg-tikimanager/symfony/event-dispatcher/Tests/Debug/TraceableEventDispatcherTest.php
2023-11-20 20:52:04 +00:00

345 lines
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PHP
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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\ErrorHandler\BufferingLogger;
use Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher;
use Symfony\Component\EventDispatcher\Event;
use Symfony\Component\EventDispatcher\EventDispatcher;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\Stopwatch\Stopwatch;
use Symfony\Contracts\EventDispatcher\Event as ContractsEvent;
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(new Event(), 'foo');
$listeners = $dispatcher->getListeners('foo');
$this->assertSame(123, $tdispatcher->getListenerPriority('foo', $listeners[0]));
}
public function testGetListenerPriorityWhileDispatching()
{
$tdispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
$priorityWhileDispatching = null;
$listener = function () use ($tdispatcher, &$priorityWhileDispatching, &$listener) {
$priorityWhileDispatching = $tdispatcher->getListenerPriority('bar', $listener);
};
$tdispatcher->addListener('bar', $listener, 5);
$tdispatcher->dispatch(new Event(), 'bar');
$this->assertSame(5, $priorityWhileDispatching);
}
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);
$this->assertSame([$subscriber, 'call'], $listeners[0]);
$tdispatcher->removeSubscriber($subscriber);
$this->assertCount(0, $dispatcher->getListeners('foo'));
}
public function testGetCalledListeners()
{
$tdispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
$tdispatcher->addListener('foo', function () {}, 5);
$listeners = $tdispatcher->getNotCalledListeners();
$this->assertArrayHasKey('stub', $listeners[0]);
unset($listeners[0]['stub']);
$this->assertEquals([], $tdispatcher->getCalledListeners());
$this->assertEquals([['event' => 'foo', 'pretty' => 'closure', 'priority' => 5]], $listeners);
$tdispatcher->dispatch(new Event(), 'foo');
$listeners = $tdispatcher->getCalledListeners();
$this->assertArrayHasKey('stub', $listeners[0]);
unset($listeners[0]['stub']);
$this->assertEquals([['event' => 'foo', 'pretty' => 'closure', 'priority' => 5]], $listeners);
$this->assertEquals([], $tdispatcher->getNotCalledListeners());
}
public function testClearCalledListeners()
{
$tdispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
$tdispatcher->addListener('foo', function () {}, 5);
$tdispatcher->dispatch(new Event(), 'foo');
$tdispatcher->reset();
$listeners = $tdispatcher->getNotCalledListeners();
$this->assertArrayHasKey('stub', $listeners[0]);
unset($listeners[0]['stub']);
$this->assertEquals([], $tdispatcher->getCalledListeners());
$this->assertEquals([['event' => 'foo', 'pretty' => 'closure', 'priority' => 5]], $listeners);
}
public function testDispatchContractsEvent()
{
$expectedEvent = new ContractsEvent();
$tdispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
$tdispatcher->addListener('foo', function ($event) use ($expectedEvent) {
$this->assertSame($event, $expectedEvent);
}, 5);
$tdispatcher->dispatch($expectedEvent, 'foo');
$listeners = $tdispatcher->getCalledListeners();
$this->assertArrayHasKey('stub', $listeners[0]);
}
public function testDispatchAfterReset()
{
$tdispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
$tdispatcher->addListener('foo', function () {}, 5);
$tdispatcher->reset();
$tdispatcher->dispatch(new Event(), 'foo');
$listeners = $tdispatcher->getCalledListeners();
$this->assertArrayHasKey('stub', $listeners[0]);
}
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(new Event(), 'bar');
});
$dispatcher->addListener('bar', function (Event $event) {});
$dispatcher->dispatch(new Event(), 'foo');
$this->assertSame($dispatcher, $tdispatcher);
$this->assertCount(2, $dispatcher->getCalledListeners());
}
public function testItReturnsNoOrphanedEventsWhenCreated()
{
$tdispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
$events = $tdispatcher->getOrphanedEvents();
$this->assertEmpty($events);
}
public function testItReturnsOrphanedEventsAfterDispatch()
{
$tdispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
$tdispatcher->dispatch(new Event(), 'foo');
$events = $tdispatcher->getOrphanedEvents();
$this->assertCount(1, $events);
$this->assertEquals(['foo'], $events);
}
public function testItDoesNotReturnHandledEvents()
{
$tdispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
$tdispatcher->addListener('foo', function () {});
$tdispatcher->dispatch(new Event(), 'foo');
$events = $tdispatcher->getOrphanedEvents();
$this->assertEmpty($events);
}
public function testLogger()
{
$logger = new BufferingLogger();
$dispatcher = new EventDispatcher();
$tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch(), $logger);
$tdispatcher->addListener('foo', $listener1 = function () {});
$tdispatcher->addListener('foo', $listener2 = function () {});
$tdispatcher->dispatch(new Event(), 'foo');
$this->assertSame([
[
'debug',
'Notified event "{event}" to listener "{listener}".',
['event' => 'foo', 'listener' => 'closure'],
],
[
'debug',
'Notified event "{event}" to listener "{listener}".',
['event' => 'foo', 'listener' => 'closure'],
],
], $logger->cleanLogs());
}
public function testLoggerWithStoppedEvent()
{
$logger = new BufferingLogger();
$dispatcher = new EventDispatcher();
$tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch(), $logger);
$tdispatcher->addListener('foo', $listener1 = function (Event $event) { $event->stopPropagation(); });
$tdispatcher->addListener('foo', $listener2 = function () {});
$tdispatcher->dispatch(new Event(), 'foo');
$this->assertSame([
[
'debug',
'Notified event "{event}" to listener "{listener}".',
['event' => 'foo', 'listener' => 'closure'],
],
[
'debug',
'Listener "{listener}" stopped propagation of the event "{event}".',
['event' => 'foo', 'listener' => 'closure'],
],
[
'debug',
'Listener "{listener}" was not called for event "{event}".',
['event' => 'foo', 'listener' => 'closure'],
],
], $logger->cleanLogs());
}
public function testDispatchCallListeners()
{
$called = [];
$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(new Event(), 'foo');
$this->assertSame(['foo2', 'foo1'], $called);
}
public function testDispatchNested()
{
$dispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
$loop = 1;
$dispatchedEvents = 0;
$dispatcher->addListener('foo', $listener1 = function () use ($dispatcher, &$loop) {
++$loop;
if (2 == $loop) {
$dispatcher->dispatch(new Event(), 'foo');
}
});
$dispatcher->addListener('foo', function () use (&$dispatchedEvents) {
++$dispatchedEvents;
});
$dispatcher->dispatch(new Event(), 'foo');
$this->assertSame(2, $dispatchedEvents);
}
public function testDispatchReusedEventNested()
{
$nestedCall = false;
$dispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
$dispatcher->addListener('foo', function (Event $e) use ($dispatcher) {
$dispatcher->dispatch(new Event(), 'bar', $e);
});
$dispatcher->addListener('bar', function (Event $e) use (&$nestedCall) {
$nestedCall = true;
});
$this->assertFalse($nestedCall);
$dispatcher->dispatch(new Event(), '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(new Event(), 'foo');
$this->assertCount(1, $eventDispatcher->getListeners('foo'), 'expected listener1 to be removed');
}
public function testClearOrphanedEvents()
{
$tdispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
$tdispatcher->dispatch(new Event(), 'foo');
$events = $tdispatcher->getOrphanedEvents();
$this->assertCount(1, $events);
$tdispatcher->reset();
$events = $tdispatcher->getOrphanedEvents();
$this->assertCount(0, $events);
}
}
class EventSubscriber implements EventSubscriberInterface
{
public static function getSubscribedEvents(): array
{
return ['foo' => 'call'];
}
}