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[EventDispatcher] check for method to exist

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This commit is contained in:
Christian Flothmann 2016-03-31 19:22:31 +02:00
parent e4816def29
commit 78ae2adb5b
2 changed files with 14 additions and 0 deletions
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4
src/Symfony/Component/EventDispatcher/Debug/TraceableEventDispatcher.php
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@ -104,6 +104,10 @@ class TraceableEventDispatcher implements TraceableEventDispatcherInterface
*/
public function getListenerPriority($eventName, $listener)
{
if (!method_exists($this->dispatcher, 'getListenerPriority')) {
return 0;
}
return $this->dispatcher->getListenerPriority($eventName, $listener);
}

10
src/Symfony/Component/EventDispatcher/Tests/Debug/TraceableEventDispatcherTest.php
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@ -73,6 +73,16 @@ class TraceableEventDispatcherTest extends \PHPUnit_Framework_TestCase
$this->assertSame(123, $tdispatcher->getListenerPriority('foo', $listeners[0]));
}
public function testGetListenerPriorityReturnsZeroWhenWrappedMethodDoesNotExist()
{
$dispatcher = $this->getMock('Symfony\Component\EventDispatcher\EventDispatcherInterface');
$traceableEventDispatcher = new TraceableEventDispatcher($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();