TplBlock/vendor/symfony/event-dispatcher/Tests/Debug/TraceableEventDispatcherTest.php

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2018-03-26 21:57:35 +02:00
<?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\Debug\WrappedListener;
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'));
}
/**
* @dataProvider isWrappedDataProvider
*
* @param bool $isWrapped
*/
public function testGetCalledListeners($isWrapped)
{
$dispatcher = new EventDispatcher();
$stopWatch = new Stopwatch();
$tdispatcher = new TraceableEventDispatcher($dispatcher, $stopWatch);
$listener = function () {};
if ($isWrapped) {
$listener = new WrappedListener($listener, 'foo', $stopWatch, $dispatcher);
}
$tdispatcher->addListener('foo', $listener, 5);
$this->assertEquals(array(), $tdispatcher->getCalledListeners());
$this->assertEquals(array('foo.closure' => array('event' => 'foo', 'type' => 'Closure', 'pretty' => 'closure', 'priority' => 5)), $tdispatcher->getNotCalledListeners());
$tdispatcher->dispatch('foo');
$this->assertEquals(array('foo.closure' => array('event' => 'foo', 'type' => 'Closure', 'pretty' => 'closure', 'priority' => 5)), $tdispatcher->getCalledListeners());
$this->assertEquals(array(), $tdispatcher->getNotCalledListeners());
}
public function isWrappedDataProvider()
{
return array(
array(false),
array(true),
);
}
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;
$dispatchedEvents = 0;
$dispatcher->addListener('foo', $listener1 = function () use ($dispatcher, &$loop) {
++$loop;
if (2 == $loop) {
$dispatcher->dispatch('foo');
}
});
$dispatcher->addListener('foo', function () use (&$dispatchedEvents) {
++$dispatchedEvents;
});
$dispatcher->dispatch('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('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');
}
}