Unverified Commit 0356445b authored by alexpott's avatar alexpott

Issue #3055040 by mikelutz, alexpott: Roll AbstractEventDispatcherTest into...

Issue #3055040 by mikelutz, alexpott: Roll AbstractEventDispatcherTest into ContainerAwareEventDispatcherTest
parent ea0ab7e5
......@@ -59,8 +59,7 @@ class Composer {
'symfony/debug' => ['Tests'],
'symfony/dependency-injection' => ['Tests'],
'symfony/dom-crawler' => ['Tests'],
// @see \Drupal\Tests\Component\EventDispatcher\ContainerAwareEventDispatcherTest
// 'symfony/event-dispatcher' => ['Tests'],
'symfony/event-dispatcher' => ['Tests'],
'symfony/http-foundation' => ['Tests'],
'symfony/http-kernel' => ['Tests'],
'symfony/process' => ['Tests'],
......
......@@ -4,29 +4,53 @@
namespace Drupal\Tests\Component\EventDispatcher;
use Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher;
use PHPUnit\Framework\TestCase;
use Symfony\Component\DependencyInjection\Container;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\EventDispatcher\Tests\CallableClass;
use Symfony\Component\EventDispatcher\Tests\AbstractEventDispatcherTest;
use Symfony\Component\EventDispatcher\Tests\TestEventListener;
use Symfony\Component\EventDispatcher\Event;
use Symfony\Component\EventDispatcher\EventDispatcher;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
/**
* Unit tests for the ContainerAwareEventDispatcher.
*
* NOTE: 98% of this code is a literal copy of Symfony's emerging
* CompiledEventDispatcherTest.
* NOTE: Most of this code is a literal copy of Symfony 3.4's
* Symfony\Component\EventDispatcher\Tests\AbstractEventDispatcherTest.
*
* This file does NOT follow Drupal coding standards, so as to simplify future
* synchronizations.
*
* @see https://github.com/symfony/symfony/pull/12521
*
* @group EventDispatcher
*/
class ContainerAwareEventDispatcherTest extends AbstractEventDispatcherTest
class ContainerAwareEventDispatcherTest extends TestCase
{
protected function createEventDispatcher()
/* Some pseudo events */
const preFoo = 'pre.foo';
const postFoo = 'post.foo';
const preBar = 'pre.bar';
const postBar = 'post.bar';
/**
* @var EventDispatcher
*/
private $dispatcher;
private $listener;
protected function setUp()
{
$this->dispatcher = $this->createEventDispatcher();
$this->listener = new TestEventListener();
}
protected function tearDown()
{
$this->dispatcher = null;
$this->listener = null;
}
protected function createEventDispatcher()
{
$container = new Container();
......@@ -98,7 +122,7 @@ public function testDispatchWithCallables()
public function testGetListenersWithServices()
{
$container = new ContainerBuilder();
$container->register('listener_service', 'Symfony\Component\EventDispatcher\Tests\TestEventListener');
$container->register('listener_service', TestEventListener::class);
$listeners = array(
'test_event' => array(
......@@ -124,7 +148,7 @@ public function testGetListenersWithServices()
public function testDispatchWithServices()
{
$container = new ContainerBuilder();
$container->register('listener_service', 'Symfony\Component\EventDispatcher\Tests\TestEventListener');
$container->register('listener_service', TestEventListener::class);
$listeners = array(
'test_event' => array(
......@@ -145,8 +169,8 @@ public function testDispatchWithServices()
public function testRemoveService()
{
$container = new ContainerBuilder();
$container->register('listener_service', 'Symfony\Component\EventDispatcher\Tests\TestEventListener');
$container->register('other_listener_service', 'Symfony\Component\EventDispatcher\Tests\TestEventListener');
$container->register('listener_service', TestEventListener::class);
$container->register('other_listener_service', TestEventListener::class);
$listeners = array(
'test_event' => array(
......@@ -192,5 +216,398 @@ public function testGetListenerPriorityWithServices()
$this->assertSame(5, $actualPriority);
}
public function testInitialState()
{
$this->assertEquals([], $this->dispatcher->getListeners());
$this->assertFalse($this->dispatcher->hasListeners(self::preFoo));
$this->assertFalse($this->dispatcher->hasListeners(self::postFoo));
}
public function testAddListener()
{
$this->dispatcher->addListener('pre.foo', [$this->listener, 'preFoo']);
$this->dispatcher->addListener('post.foo', [$this->listener, 'postFoo']);
$this->assertTrue($this->dispatcher->hasListeners());
$this->assertTrue($this->dispatcher->hasListeners(self::preFoo));
$this->assertTrue($this->dispatcher->hasListeners(self::postFoo));
$this->assertCount(1, $this->dispatcher->getListeners(self::preFoo));
$this->assertCount(1, $this->dispatcher->getListeners(self::postFoo));
$this->assertCount(2, $this->dispatcher->getListeners());
}
public function testGetListenersSortsByPriority()
{
$listener1 = new TestEventListener();
$listener2 = new TestEventListener();
$listener3 = new TestEventListener();
$listener1->name = '1';
$listener2->name = '2';
$listener3->name = '3';
$this->dispatcher->addListener('pre.foo', [$listener1, 'preFoo'], -10);
$this->dispatcher->addListener('pre.foo', [$listener2, 'preFoo'], 10);
$this->dispatcher->addListener('pre.foo', [$listener3, 'preFoo']);
$expected = [
[$listener2, 'preFoo'],
[$listener3, 'preFoo'],
[$listener1, 'preFoo'],
];
$this->assertSame($expected, $this->dispatcher->getListeners('pre.foo'));
}
public function testGetAllListenersSortsByPriority()
{
$listener1 = new TestEventListener();
$listener2 = new TestEventListener();
$listener3 = new TestEventListener();
$listener4 = new TestEventListener();
$listener5 = new TestEventListener();
$listener6 = new TestEventListener();
$this->dispatcher->addListener('pre.foo', $listener1, -10);
$this->dispatcher->addListener('pre.foo', $listener2);
$this->dispatcher->addListener('pre.foo', $listener3, 10);
$this->dispatcher->addListener('post.foo', $listener4, -10);
$this->dispatcher->addListener('post.foo', $listener5);
$this->dispatcher->addListener('post.foo', $listener6, 10);
$expected = [
'pre.foo' => [$listener3, $listener2, $listener1],
'post.foo' => [$listener6, $listener5, $listener4],
];
$this->assertSame($expected, $this->dispatcher->getListeners());
}
public function testGetListenerPriority()
{
$listener1 = new TestEventListener();
$listener2 = new TestEventListener();
$this->dispatcher->addListener('pre.foo', $listener1, -10);
$this->dispatcher->addListener('pre.foo', $listener2);
$this->assertSame(-10, $this->dispatcher->getListenerPriority('pre.foo', $listener1));
$this->assertSame(0, $this->dispatcher->getListenerPriority('pre.foo', $listener2));
$this->assertNull($this->dispatcher->getListenerPriority('pre.bar', $listener2));
$this->assertNull($this->dispatcher->getListenerPriority('pre.foo', function () {}));
}
public function testDispatch()
{
$this->dispatcher->addListener('pre.foo', [$this->listener, 'preFoo']);
$this->dispatcher->addListener('post.foo', [$this->listener, 'postFoo']);
$this->dispatcher->dispatch(self::preFoo);
$this->assertTrue($this->listener->preFooInvoked);
$this->assertFalse($this->listener->postFooInvoked);
$this->assertInstanceOf('Symfony\Component\EventDispatcher\Event', $this->dispatcher->dispatch('noevent'));
$this->assertInstanceOf('Symfony\Component\EventDispatcher\Event', $this->dispatcher->dispatch(self::preFoo));
$event = new Event();
$return = $this->dispatcher->dispatch(self::preFoo, $event);
$this->assertSame($event, $return);
}
public function testDispatchForClosure()
{
$invoked = 0;
$listener = function () use (&$invoked) {
++$invoked;
};
$this->dispatcher->addListener('pre.foo', $listener);
$this->dispatcher->addListener('post.foo', $listener);
$this->dispatcher->dispatch(self::preFoo);
$this->assertEquals(1, $invoked);
}
public function testStopEventPropagation()
{
$otherListener = new TestEventListener();
// postFoo() stops the propagation, so only one listener should
// be executed
// Manually set priority to enforce $this->listener to be called first
$this->dispatcher->addListener('post.foo', [$this->listener, 'postFoo'], 10);
$this->dispatcher->addListener('post.foo', [$otherListener, 'postFoo']);
$this->dispatcher->dispatch(self::postFoo);
$this->assertTrue($this->listener->postFooInvoked);
$this->assertFalse($otherListener->postFooInvoked);
}
public function testDispatchByPriority()
{
$invoked = [];
$listener1 = function () use (&$invoked) {
$invoked[] = '1';
};
$listener2 = function () use (&$invoked) {
$invoked[] = '2';
};
$listener3 = function () use (&$invoked) {
$invoked[] = '3';
};
$this->dispatcher->addListener('pre.foo', $listener1, -10);
$this->dispatcher->addListener('pre.foo', $listener2);
$this->dispatcher->addListener('pre.foo', $listener3, 10);
$this->dispatcher->dispatch(self::preFoo);
$this->assertEquals(['3', '2', '1'], $invoked);
}
public function testRemoveListener()
{
$this->dispatcher->addListener('pre.bar', $this->listener);
$this->assertTrue($this->dispatcher->hasListeners(self::preBar));
$this->dispatcher->removeListener('pre.bar', $this->listener);
$this->assertFalse($this->dispatcher->hasListeners(self::preBar));
$this->dispatcher->removeListener('notExists', $this->listener);
}
public function testAddSubscriber()
{
$eventSubscriber = new TestEventSubscriber();
$this->dispatcher->addSubscriber($eventSubscriber);
$this->assertTrue($this->dispatcher->hasListeners(self::preFoo));
$this->assertTrue($this->dispatcher->hasListeners(self::postFoo));
}
public function testAddSubscriberWithPriorities()
{
$eventSubscriber = new TestEventSubscriber();
$this->dispatcher->addSubscriber($eventSubscriber);
$eventSubscriber = new TestEventSubscriberWithPriorities();
$this->dispatcher->addSubscriber($eventSubscriber);
$listeners = $this->dispatcher->getListeners('pre.foo');
$this->assertTrue($this->dispatcher->hasListeners(self::preFoo));
$this->assertCount(2, $listeners);
$this->assertInstanceOf(TestEventSubscriberWithPriorities::class, $listeners[0][0]);
}
public function testAddSubscriberWithMultipleListeners()
{
$eventSubscriber = new TestEventSubscriberWithMultipleListeners();
$this->dispatcher->addSubscriber($eventSubscriber);
$listeners = $this->dispatcher->getListeners('pre.foo');
$this->assertTrue($this->dispatcher->hasListeners(self::preFoo));
$this->assertCount(2, $listeners);
$this->assertEquals('preFoo2', $listeners[0][1]);
}
public function testRemoveSubscriber()
{
$eventSubscriber = new TestEventSubscriber();
$this->dispatcher->addSubscriber($eventSubscriber);
$this->assertTrue($this->dispatcher->hasListeners(self::preFoo));
$this->assertTrue($this->dispatcher->hasListeners(self::postFoo));
$this->dispatcher->removeSubscriber($eventSubscriber);
$this->assertFalse($this->dispatcher->hasListeners(self::preFoo));
$this->assertFalse($this->dispatcher->hasListeners(self::postFoo));
}
public function testRemoveSubscriberWithPriorities()
{
$eventSubscriber = new TestEventSubscriberWithPriorities();
$this->dispatcher->addSubscriber($eventSubscriber);
$this->assertTrue($this->dispatcher->hasListeners(self::preFoo));
$this->dispatcher->removeSubscriber($eventSubscriber);
$this->assertFalse($this->dispatcher->hasListeners(self::preFoo));
}
public function testRemoveSubscriberWithMultipleListeners()
{
$eventSubscriber = new TestEventSubscriberWithMultipleListeners();
$this->dispatcher->addSubscriber($eventSubscriber);
$this->assertTrue($this->dispatcher->hasListeners(self::preFoo));
$this->assertCount(2, $this->dispatcher->getListeners(self::preFoo));
$this->dispatcher->removeSubscriber($eventSubscriber);
$this->assertFalse($this->dispatcher->hasListeners(self::preFoo));
}
public function testEventReceivesTheDispatcherInstanceAsArgument()
{
$listener = new TestWithDispatcher();
$this->dispatcher->addListener('test', [$listener, 'foo']);
$this->assertNull($listener->name);
$this->assertNull($listener->dispatcher);
$this->dispatcher->dispatch('test');
$this->assertEquals('test', $listener->name);
$this->assertSame($this->dispatcher, $listener->dispatcher);
}
/**
* @see https://bugs.php.net/bug.php?id=62976
*
* This bug affects:
* - The PHP 5.3 branch for versions < 5.3.18
* - The PHP 5.4 branch for versions < 5.4.8
* - The PHP 5.5 branch is not affected
*/
public function testWorkaroundForPhpBug62976()
{
$dispatcher = $this->createEventDispatcher();
$dispatcher->addListener('bug.62976', new CallableClass());
$dispatcher->removeListener('bug.62976', function () {});
$this->assertTrue($dispatcher->hasListeners('bug.62976'));
}
public function testHasListenersWhenAddedCallbackListenerIsRemoved()
{
$listener = function () {};
$this->dispatcher->addListener('foo', $listener);
$this->dispatcher->removeListener('foo', $listener);
$this->assertFalse($this->dispatcher->hasListeners());
}
public function testGetListenersWhenAddedCallbackListenerIsRemoved()
{
$listener = function () {};
$this->dispatcher->addListener('foo', $listener);
$this->dispatcher->removeListener('foo', $listener);
$this->assertSame([], $this->dispatcher->getListeners());
}
public function testHasListenersWithoutEventsReturnsFalseAfterHasListenersWithEventHasBeenCalled()
{
$this->assertFalse($this->dispatcher->hasListeners('foo'));
$this->assertFalse($this->dispatcher->hasListeners());
}
public function testHasListenersIsLazy()
{
$called = 0;
$listener = [function () use (&$called) { ++$called; }, 'onFoo'];
$this->dispatcher->addListener('foo', $listener);
$this->assertTrue($this->dispatcher->hasListeners());
$this->assertTrue($this->dispatcher->hasListeners('foo'));
$this->assertSame(0, $called);
}
public function testDispatchLazyListener()
{
$called = 0;
$factory = function () use (&$called) {
++$called;
return new TestWithDispatcher();
};
$this->dispatcher->addListener('foo', [$factory, 'foo']);
$this->assertSame(0, $called);
$this->dispatcher->dispatch('foo', new Event());
$this->dispatcher->dispatch('foo', new Event());
$this->assertSame(1, $called);
}
public function testRemoveFindsLazyListeners()
{
$test = new TestWithDispatcher();
$factory = function () use ($test) { return $test; };
$this->dispatcher->addListener('foo', [$factory, 'foo']);
$this->assertTrue($this->dispatcher->hasListeners('foo'));
$this->dispatcher->removeListener('foo', [$test, 'foo']);
$this->assertFalse($this->dispatcher->hasListeners('foo'));
$this->dispatcher->addListener('foo', [$test, 'foo']);
$this->assertTrue($this->dispatcher->hasListeners('foo'));
$this->dispatcher->removeListener('foo', [$factory, 'foo']);
$this->assertFalse($this->dispatcher->hasListeners('foo'));
}
public function testPriorityFindsLazyListeners()
{
$test = new TestWithDispatcher();
$factory = function () use ($test) { return $test; };
$this->dispatcher->addListener('foo', [$factory, 'foo'], 3);
$this->assertSame(3, $this->dispatcher->getListenerPriority('foo', [$test, 'foo']));
$this->dispatcher->removeListener('foo', [$factory, 'foo']);
$this->dispatcher->addListener('foo', [$test, 'foo'], 5);
$this->assertSame(5, $this->dispatcher->getListenerPriority('foo', [$factory, 'foo']));
}
public function testGetLazyListeners()
{
$test = new TestWithDispatcher();
$factory = function () use ($test) { return $test; };
$this->dispatcher->addListener('foo', [$factory, 'foo'], 3);
$this->assertSame([[$test, 'foo']], $this->dispatcher->getListeners('foo'));
$this->dispatcher->removeListener('foo', [$test, 'foo']);
$this->dispatcher->addListener('bar', [$factory, 'foo'], 3);
$this->assertSame(['bar' => [[$test, 'foo']]], $this->dispatcher->getListeners());
}
}
class CallableClass
{
public function __invoke()
{
}
}
class TestEventListener
{
public $preFooInvoked = false;
public $postFooInvoked = false;
/* Listener methods */
public function preFoo(Event $e)
{
$this->preFooInvoked = true;
}
}
public function postFoo(Event $e)
{
$this->postFooInvoked = true;
$e->stopPropagation();
}
}
class TestWithDispatcher
{
public $name;
public $dispatcher;
public function foo(Event $e, $name, $dispatcher)
{
$this->name = $name;
$this->dispatcher = $dispatcher;
}
}
class TestEventSubscriber implements EventSubscriberInterface
{
public static function getSubscribedEvents()
{
return ['pre.foo' => 'preFoo', 'post.foo' => 'postFoo'];
}
}
class TestEventSubscriberWithPriorities implements EventSubscriberInterface
{
public static function getSubscribedEvents()
{
return [
'pre.foo' => ['preFoo', 10],
'post.foo' => ['postFoo'],
];
}
}
class TestEventSubscriberWithMultipleListeners implements EventSubscriberInterface
{
public static function getSubscribedEvents()
{
return ['pre.foo' => [
['preFoo1'],
['preFoo2', 10],
]];
}
}
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