/
EventManagerTest.php
750 lines (662 loc) · 25.1 KB
/
EventManagerTest.php
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<?php
/**
* CakePHP : Rapid Development Framework (http://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP Project
* @since 2.1.0
* @license http://www.opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\Test\TestCase\Event;
use Cake\Event\Event;
use Cake\Event\EventList;
use Cake\Event\EventListenerInterface;
use Cake\Event\EventManager;
use Cake\TestSuite\TestCase;
/**
* Mock class used to test event dispatching
*/
class EventTestListener
{
public $callList = [];
/**
* Test function to be used in event dispatching
*
* @return void
*/
public function listenerFunction()
{
$this->callList[] = __FUNCTION__;
}
/**
* Test function to be used in event dispatching
*
* @return void
*/
public function secondListenerFunction()
{
$this->callList[] = __FUNCTION__;
}
/**
* Auxiliary function to help in stopPropagation testing
*
* @param \Cake\Event\Event $event
* @return void
*/
public function stopListener($event)
{
$event->stopPropagation();
}
}
/**
* Mock used for testing the subscriber objects
*/
class CustomTestEventListenerInterface extends EventTestListener implements EventListenerInterface
{
public function implementedEvents()
{
return [
'fake.event' => 'listenerFunction',
'another.event' => ['callable' => 'secondListenerFunction'],
'multiple.handlers' => [
['callable' => 'listenerFunction'],
['callable' => 'thirdListenerFunction']
]
];
}
/**
* Test function to be used in event dispatching
*
* @return void
*/
public function thirdListenerFunction()
{
$this->callList[] = __FUNCTION__;
}
}
/**
* Tests the Cake\Event\EventManager class functionality
*
*/
class EventManagerTest extends TestCase
{
/**
* Tests the attach() method for a single event key in multiple queues
*
* @return void
*/
public function testAttachListeners()
{
$manager = new EventManager();
$manager->attach('fakeFunction', 'fake.event');
$expected = [
['callable' => 'fakeFunction']
];
$this->assertEquals($expected, $manager->listeners('fake.event'));
$manager->attach('fakeFunction2', 'fake.event');
$expected[] = ['callable' => 'fakeFunction2'];
$this->assertEquals($expected, $manager->listeners('fake.event'));
$manager->attach('inQ5', 'fake.event', ['priority' => 5]);
$manager->attach('inQ1', 'fake.event', ['priority' => 1]);
$manager->attach('otherInQ5', 'fake.event', ['priority' => 5]);
$expected = array_merge(
[
['callable' => 'inQ1'],
['callable' => 'inQ5'],
['callable' => 'otherInQ5']
],
$expected
);
$this->assertEquals($expected, $manager->listeners('fake.event'));
}
/**
* Tests the attach() method for multiple event key in multiple queues
*
* @return void
*/
public function testAttachMultipleEventKeys()
{
$manager = new EventManager();
$manager->attach('fakeFunction', 'fake.event');
$manager->attach('fakeFunction2', 'another.event');
$manager->attach('fakeFunction3', 'another.event', ['priority' => 1]);
$expected = [
['callable' => 'fakeFunction']
];
$this->assertEquals($expected, $manager->listeners('fake.event'));
$expected = [
['callable' => 'fakeFunction3'],
['callable' => 'fakeFunction2']
];
$this->assertEquals($expected, $manager->listeners('another.event'));
}
/**
* Tests attached event listeners for matching key pattern
*
* @return void
*/
public function testMatchingListeners()
{
$manager = new EventManager();
$manager->attach('fakeFunction1', 'fake.event');
$manager->attach('fakeFunction2', 'real.event');
$manager->attach('fakeFunction3', 'test.event');
$manager->attach('fakeFunction4', 'event.test');
$this->assertArrayHasKey('fake.event', $manager->matchingListeners('fake.event'));
$this->assertArrayHasKey('real.event', $manager->matchingListeners('real.event'));
$this->assertArrayHasKey('test.event', $manager->matchingListeners('test.event'));
$this->assertArrayHasKey('event.test', $manager->matchingListeners('event.test'));
$this->assertArrayHasKey('fake.event', $manager->matchingListeners('fake'));
$this->assertArrayHasKey('real.event', $manager->matchingListeners('real'));
$this->assertArrayHasKey('test.event', $manager->matchingListeners('test'));
$this->assertArrayHasKey('event.test', $manager->matchingListeners('test'));
$this->assertArrayHasKey('fake.event', $manager->matchingListeners('event'));
$this->assertArrayHasKey('real.event', $manager->matchingListeners('event'));
$this->assertArrayHasKey('test.event', $manager->matchingListeners('event'));
$this->assertArrayHasKey('event.test', $manager->matchingListeners('event'));
$this->assertArrayHasKey('fake.event', $manager->matchingListeners('.event'));
$this->assertArrayHasKey('real.event', $manager->matchingListeners('.event'));
$this->assertArrayHasKey('test.event', $manager->matchingListeners('.event'));
$this->assertArrayHasKey('test.event', $manager->matchingListeners('test.'));
$this->assertArrayHasKey('event.test', $manager->matchingListeners('.test'));
$this->assertEmpty($manager->matchingListeners('/test'));
$this->assertEmpty($manager->matchingListeners('test/'));
$this->assertEmpty($manager->matchingListeners('/test/'));
$this->assertEmpty($manager->matchingListeners('test$'));
$this->assertEmpty($manager->matchingListeners('ev.nt'));
$this->assertEmpty($manager->matchingListeners('^test'));
$this->assertEmpty($manager->matchingListeners('^event'));
$this->assertEmpty($manager->matchingListeners('*event'));
$this->assertEmpty($manager->matchingListeners('event*'));
$this->assertEmpty($manager->matchingListeners('foo'));
$expected = ['fake.event', 'real.event', 'test.event', 'event.test'];
$result = $manager->matchingListeners('event');
$this->assertNotEmpty($result);
$this->assertSame($expected, array_keys($result));
$expected = ['fake.event', 'real.event', 'test.event'];
$result = $manager->matchingListeners('.event');
$this->assertNotEmpty($result);
$this->assertSame($expected, array_keys($result));
$expected = ['test.event', 'event.test'];
$result = $manager->matchingListeners('test');
$this->assertNotEmpty($result);
$this->assertSame($expected, array_keys($result));
$expected = ['test.event'];
$result = $manager->matchingListeners('test.');
$this->assertNotEmpty($result);
$this->assertSame($expected, array_keys($result));
$expected = ['event.test'];
$result = $manager->matchingListeners('.test');
$this->assertNotEmpty($result);
$this->assertSame($expected, array_keys($result));
}
/**
* Test the on() method for basic callable types.
*
* @return void
*/
public function testOn()
{
$count = 1;
$manager = new EventManager();
$manager->on('my.event', 'myfunc');
$expected = [
['callable' => 'myfunc']
];
$this->assertSame($expected, $manager->listeners('my.event'));
$manager->on('my.event', ['priority' => 1], 'func2');
$expected = [
['callable' => 'func2'],
['callable' => 'myfunc'],
];
$this->assertSame($expected, $manager->listeners('my.event'));
$listener = new CustomTestEventListenerInterface();
$manager->on($listener);
$expected = [
['callable' => [$listener, 'listenerFunction']],
];
$this->assertEquals($expected, $manager->listeners('fake.event'));
}
/**
* Tests off'ing an event from a event key queue
*
* @return void
*/
public function testOff()
{
$manager = new EventManager();
$manager->on('fake.event', ['AClass', 'aMethod']);
$manager->on('another.event', ['AClass', 'anotherMethod']);
$manager->on('another.event', ['priority' => 1], 'fakeFunction');
$manager->off('fake.event', ['AClass', 'aMethod']);
$this->assertEquals([], $manager->listeners('fake.event'));
$manager->off('another.event', ['AClass', 'anotherMethod']);
$expected = [
['callable' => 'fakeFunction']
];
$this->assertEquals($expected, $manager->listeners('another.event'));
$manager->off('another.event', 'fakeFunction');
$this->assertEquals([], $manager->listeners('another.event'));
}
/**
* Tests off'ing an event from all event queues
*
* @return void
*/
public function testOffFromAll()
{
$manager = new EventManager();
$manager->on('fake.event', ['AClass', 'aMethod']);
$manager->on('another.event', ['AClass', 'aMethod']);
$manager->on('another.event', ['priority' => 1], 'fakeFunction');
$manager->off(['AClass', 'aMethod']);
$expected = [
['callable' => 'fakeFunction']
];
$this->assertEquals($expected, $manager->listeners('another.event'));
$this->assertEquals([], $manager->listeners('fake.event'));
}
/**
* Tests off'ing all listeners for an event
*/
public function testRemoveAllListeners()
{
$manager = new EventManager();
$manager->on('fake.event', ['AClass', 'aMethod']);
$manager->on('another.event', ['priority' => 1], 'fakeFunction');
$manager->off('fake.event');
$expected = [
['callable' => 'fakeFunction']
];
$this->assertEquals($expected, $manager->listeners('another.event'));
$this->assertEquals([], $manager->listeners('fake.event'));
}
/**
* Tests detaching an event from a event key queue
*
* @return void
*/
public function testDetach()
{
$manager = new EventManager();
$manager->attach(['AClass', 'aMethod'], 'fake.event');
$manager->attach(['AClass', 'anotherMethod'], 'another.event');
$manager->attach('fakeFunction', 'another.event', ['priority' => 1]);
$manager->detach(['AClass', 'aMethod'], 'fake.event');
$this->assertEquals([], $manager->listeners('fake.event'));
$manager->detach(['AClass', 'anotherMethod'], 'another.event');
$expected = [
['callable' => 'fakeFunction']
];
$this->assertEquals($expected, $manager->listeners('another.event'));
$manager->detach('fakeFunction', 'another.event');
$this->assertEquals([], $manager->listeners('another.event'));
}
/**
* Tests detaching an event from all event queues
*
* @return void
*/
public function testDetachFromAll()
{
$manager = new EventManager();
$manager->attach(['AClass', 'aMethod'], 'fake.event');
$manager->attach(['AClass', 'aMethod'], 'another.event');
$manager->attach('fakeFunction', 'another.event', ['priority' => 1]);
$manager->detach(['AClass', 'aMethod']);
$expected = [
['callable' => 'fakeFunction']
];
$this->assertEquals($expected, $manager->listeners('another.event'));
$this->assertEquals([], $manager->listeners('fake.event'));
}
/**
* Tests event dispatching
*
* @return void
* @triggers fake.event
*/
public function testDispatch()
{
$manager = new EventManager();
$listener = $this->getMock(__NAMESPACE__ . '\EventTestListener');
$anotherListener = $this->getMock(__NAMESPACE__ . '\EventTestListener');
$manager->attach([$listener, 'listenerFunction'], 'fake.event');
$manager->attach([$anotherListener, 'listenerFunction'], 'fake.event');
$event = new Event('fake.event');
$listener->expects($this->once())->method('listenerFunction')->with($event);
$anotherListener->expects($this->once())->method('listenerFunction')->with($event);
$manager->dispatch($event);
}
/**
* Tests event dispatching using event key name
*
* @return void
*/
public function testDispatchWithKeyName()
{
$manager = new EventManager();
$listener = new EventTestListener;
$manager->attach([$listener, 'listenerFunction'], 'fake.event');
$event = 'fake.event';
$manager->dispatch($event);
$expected = ['listenerFunction'];
$this->assertEquals($expected, $listener->callList);
}
/**
* Tests event dispatching with a return value
*
* @return void
* @triggers fake.event
*/
public function testDispatchReturnValue()
{
$this->skipIf(
version_compare(\PHPUnit_Runner_Version::id(), '3.7', '<'),
'These tests fail in PHPUnit 3.6'
);
$manager = new EventManager;
$listener = $this->getMock(__NAMESPACE__ . '\EventTestListener');
$anotherListener = $this->getMock(__NAMESPACE__ . '\EventTestListener');
$manager->attach([$listener, 'listenerFunction'], 'fake.event');
$manager->attach([$anotherListener, 'listenerFunction'], 'fake.event');
$event = new Event('fake.event');
$listener->expects($this->at(0))->method('listenerFunction')
->with($event)
->will($this->returnValue('something special'));
$anotherListener->expects($this->at(0))
->method('listenerFunction')
->with($event);
$manager->dispatch($event);
$this->assertEquals('something special', $event->result);
}
/**
* Tests that returning false in a callback stops the event
*
* @return void
* @triggers fake.event
*/
public function testDispatchFalseStopsEvent()
{
$this->skipIf(
version_compare(\PHPUnit_Runner_Version::id(), '3.7', '<'),
'These tests fail in PHPUnit 3.6'
);
$manager = new EventManager();
$listener = $this->getMock(__NAMESPACE__ . '\EventTestListener');
$anotherListener = $this->getMock(__NAMESPACE__ . '\EventTestListener');
$manager->attach([$listener, 'listenerFunction'], 'fake.event');
$manager->attach([$anotherListener, 'listenerFunction'], 'fake.event');
$event = new Event('fake.event');
$listener->expects($this->at(0))->method('listenerFunction')
->with($event)
->will($this->returnValue(false));
$anotherListener->expects($this->never())
->method('listenerFunction');
$manager->dispatch($event);
$this->assertTrue($event->isStopped());
}
/**
* Tests event dispatching using priorities
*
* @return void
* @triggers fake.event
*/
public function testDispatchPrioritized()
{
$manager = new EventManager();
$listener = new EventTestListener;
$manager->attach([$listener, 'listenerFunction'], 'fake.event');
$manager->attach([$listener, 'secondListenerFunction'], 'fake.event', ['priority' => 5]);
$event = new Event('fake.event');
$manager->dispatch($event);
$expected = ['secondListenerFunction', 'listenerFunction'];
$this->assertEquals($expected, $listener->callList);
}
/**
* Tests subscribing a listener object and firing the events it subscribed to
*
* @return void
* @triggers fake.event
* @triggers another.event $this, array(some => data)
*/
public function testAttachSubscriber()
{
$manager = new EventManager();
$listener = $this->getMock(__NAMESPACE__ . '\CustomTestEventListenerInterface', ['secondListenerFunction']);
$manager->attach($listener);
$event = new Event('fake.event');
$manager->dispatch($event);
$expected = ['listenerFunction'];
$this->assertEquals($expected, $listener->callList);
$event = new Event('another.event', $this, ['some' => 'data']);
$listener->expects($this->at(0))
->method('secondListenerFunction')
->with($event, 'data');
$manager->dispatch($event);
}
/**
* Test implementedEvents binding multiple callbacks to the same event name.
*
* @return void
* @triggers multiple.handlers
*/
public function testAttachSubscriberMultiple()
{
$manager = new EventManager();
$listener = $this->getMock(__NAMESPACE__ . '\CustomTestEventListenerInterface', ['listenerFunction', 'thirdListenerFunction']);
$manager->attach($listener);
$event = new Event('multiple.handlers');
$listener->expects($this->once())
->method('listenerFunction')
->with($event);
$listener->expects($this->once())
->method('thirdListenerFunction')
->with($event);
$manager->dispatch($event);
}
/**
* Tests subscribing a listener object and firing the events it subscribed to
*
* @return void
*/
public function testDetachSubscriber()
{
$manager = new EventManager();
$listener = $this->getMock(__NAMESPACE__ . '\CustomTestEventListenerInterface', ['secondListenerFunction']);
$manager->attach($listener);
$expected = [
['callable' => [$listener, 'secondListenerFunction']]
];
$this->assertEquals($expected, $manager->listeners('another.event'));
$expected = [
['callable' => [$listener, 'listenerFunction']]
];
$this->assertEquals($expected, $manager->listeners('fake.event'));
$manager->detach($listener);
$this->assertEquals([], $manager->listeners('fake.event'));
$this->assertEquals([], $manager->listeners('another.event'));
}
/**
* Tests that it is possible to get/set the manager singleton
*
* @return void
*/
public function testGlobalDispatcherGetter()
{
$this->assertInstanceOf('Cake\Event\EventManager', EventManager::instance());
$manager = new EventManager();
EventManager::instance($manager);
$this->assertSame($manager, EventManager::instance());
}
/**
* Tests that the global event manager gets the event too from any other manager
*
* @return void
* @triggers fake.event
*/
public function testDispatchWithGlobal()
{
$generalManager = $this->getMock('Cake\Event\EventManager', ['prioritisedListeners']);
$manager = new EventManager();
$event = new Event('fake.event');
EventManager::instance($generalManager);
$generalManager->expects($this->once())->method('prioritisedListeners')->with('fake.event');
$manager->dispatch($event);
EventManager::instance(new EventManager());
}
/**
* Tests that stopping an event will not notify the rest of the listeners
*
* @return void
* @triggers fake.event
*/
public function testStopPropagation()
{
$generalManager = $this->getMock('Cake\Event\EventManager');
$manager = new EventManager();
$listener = new EventTestListener();
EventManager::instance($generalManager);
$generalManager->expects($this->any())
->method('prioritisedListeners')
->with('fake.event')
->will($this->returnValue([]));
$manager->attach([$listener, 'listenerFunction'], 'fake.event');
$manager->attach([$listener, 'stopListener'], 'fake.event', ['priority' => 8]);
$manager->attach([$listener, 'secondListenerFunction'], 'fake.event', ['priority' => 5]);
$event = new Event('fake.event');
$manager->dispatch($event);
$expected = ['secondListenerFunction'];
$this->assertEquals($expected, $listener->callList);
EventManager::instance(new EventManager());
}
/**
* Tests event dispatching using priorities
*
* @return void
* @triggers fake.event
*/
public function testDispatchPrioritizedWithGlobal()
{
$generalManager = $this->getMock('Cake\Event\EventManager');
$manager = new EventManager();
$listener = new CustomTestEventListenerInterface();
$event = new Event('fake.event');
EventManager::instance($generalManager);
$generalManager->expects($this->any())
->method('prioritisedListeners')
->with('fake.event')
->will($this->returnValue(
[11 => [
['callable' => [$listener, 'secondListenerFunction']]
]]
));
$manager->attach([$listener, 'listenerFunction'], 'fake.event');
$manager->attach([$listener, 'thirdListenerFunction'], 'fake.event', ['priority' => 15]);
$manager->dispatch($event);
$expected = ['listenerFunction', 'secondListenerFunction', 'thirdListenerFunction'];
$this->assertEquals($expected, $listener->callList);
EventManager::instance(new EventManager());
}
/**
* Tests event dispatching using priorities
*
* @return void
* @triggers fake.event
*/
public function testDispatchGlobalBeforeLocal()
{
$generalManager = $this->getMock('Cake\Event\EventManager');
$manager = new EventManager();
$listener = new CustomTestEventListenerInterface();
$event = new Event('fake.event');
EventManager::instance($generalManager);
$generalManager->expects($this->any())
->method('prioritisedListeners')
->with('fake.event')
->will($this->returnValue(
[10 => [
['callable' => [$listener, 'listenerFunction']]
]]
));
$manager->attach([$listener, 'secondListenerFunction'], 'fake.event');
$manager->dispatch($event);
$expected = ['listenerFunction', 'secondListenerFunction'];
$this->assertEquals($expected, $listener->callList);
EventManager::instance(new EventManager());
}
/**
* test callback
*/
public function onMyEvent($event)
{
$event->data['callback'] = 'ok';
}
/**
* Tests events dispatched by a local manager can be handled by
* handler registered in the global event manager
* @triggers my_event $manager
*/
public function testDispatchLocalHandledByGlobal()
{
$callback = [$this, 'onMyEvent'];
EventManager::instance()->attach($callback, 'my_event');
$manager = new EventManager();
$event = new Event('my_event', $manager);
$manager->dispatch($event);
$this->assertEquals('ok', $event->data['callback']);
}
/**
* Test that events are dispatched properly when there are global and local
* listeners at the same priority.
*
* @return void
* @triggers fake.event $this)
*/
public function testDispatchWithGlobalAndLocalEvents()
{
$listener = new CustomTestEventListenerInterface();
EventManager::instance()->attach($listener);
$listener2 = new EventTestListener();
$manager = new EventManager();
$manager->attach([$listener2, 'listenerFunction'], 'fake.event');
$manager->dispatch(new Event('fake.event', $this));
$this->assertEquals(['listenerFunction'], $listener->callList);
$this->assertEquals(['listenerFunction'], $listener2->callList);
}
/**
* Test getting a list of dispatched events from the manager.
*
* @return void
* @triggers my_event $this)
* @triggers my_second_event $this)
*/
public function testGetDispatchedEvents()
{
$eventList = new EventList();
$event = new Event('my_event', $this);
$event2 = new Event('my_second_event', $this);
$manager = new EventManager();
$manager->attachEventList($eventList);
$manager->dispatch($event);
$manager->dispatch($event2);
$result = $manager->eventList();
$this->assertInstanceOf('\Cake\Event\EventList', $result);
$this->assertCount(2, $result);
$this->assertEquals($result[0], $event);
$this->assertEquals($result[1], $event2);
$manager->eventList()->flush();
$result = $manager->eventList();
$this->assertCount(0, $result);
$manager->detachEventList();
$manager->dispatch($event);
$manager->dispatch($event2);
$result = $manager->eventList();
$this->assertNull($result);
}
}