dreamjob/lib/Cake/Test/Case/Event/CakeEventManagerTest.php

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2015-03-31 14:49:03 +02:00
<?php
/**
* ControllerTestCaseTest file
*
* Test Case for ControllerTestCase class
*
* 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
* @package Cake.Test.Case.Event
* @since CakePHP v 2.1
* @license http://www.opensource.org/licenses/mit-license.php MIT License
*/
App::uses('CakeEvent', 'Event');
App::uses('CakeEventManager', 'Event');
App::uses('CakeEventListener', 'Event');
/**
* Mock class used to test event dispatching
*
* @package Cake.Test.Case.Event
*/
class CakeEventTestListener {
public $callStack = array();
/**
* Test function to be used in event dispatching
*
* @return void
*/
public function listenerFunction() {
$this->callStack[] = __FUNCTION__;
}
/**
* Test function to be used in event dispatching
*
* @return void
*/
public function secondListenerFunction() {
$this->callStack[] = __FUNCTION__;
}
/**
* Auxiliary function to help in stopPropagation testing
*
* @param CakeEvent $event
* @return void
*/
public function stopListener($event) {
$event->stopPropagation();
}
}
/**
* Mock used for testing the subscriber objects
*
* @package Cake.Test.Case.Event
*/
class CustomTestEventListener extends CakeEventTestListener implements CakeEventListener {
public function implementedEvents() {
return array(
'fake.event' => 'listenerFunction',
'another.event' => array('callable' => 'secondListenerFunction', 'passParams' => true),
'multiple.handlers' => array(
array('callable' => 'listenerFunction'),
array('callable' => 'thirdListenerFunction')
)
);
}
/**
* Test function to be used in event dispatching
*
* @return void
*/
public function thirdListenerFunction() {
$this->callStack[] = __FUNCTION__;
}
}
/**
* Tests the CakeEventManager class functionality
*
*/
class CakeEventManagerTest extends CakeTestCase {
/**
* Tests the attach() method for a single event key in multiple queues
*
* @return void
*/
public function testAttachListeners() {
$manager = new CakeEventManager;
$manager->attach('fakeFunction', 'fake.event');
$expected = array(
array('callable' => 'fakeFunction', 'passParams' => false)
);
$this->assertEquals($expected, $manager->listeners('fake.event'));
$manager->attach('fakeFunction2', 'fake.event');
$expected[] = array('callable' => 'fakeFunction2', 'passParams' => false);
$this->assertEquals($expected, $manager->listeners('fake.event'));
$manager->attach('inQ5', 'fake.event', array('priority' => 5));
$manager->attach('inQ1', 'fake.event', array('priority' => 1));
$manager->attach('otherInQ5', 'fake.event', array('priority' => 5));
$expected = array_merge(
array(
array('callable' => 'inQ1', 'passParams' => false),
array('callable' => 'inQ5', 'passParams' => false),
array('callable' => 'otherInQ5', 'passParams' => false)
),
$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 CakeEventManager;
$manager->attach('fakeFunction', 'fake.event');
$manager->attach('fakeFunction2', 'another.event');
$manager->attach('fakeFunction3', 'another.event', array('priority' => 1, 'passParams' => true));
$expected = array(
array('callable' => 'fakeFunction', 'passParams' => false)
);
$this->assertEquals($expected, $manager->listeners('fake.event'));
$expected = array(
array('callable' => 'fakeFunction3', 'passParams' => true),
array('callable' => 'fakeFunction2', 'passParams' => false)
);
$this->assertEquals($expected, $manager->listeners('another.event'));
}
/**
* Tests detaching an event from a event key queue
*
* @return void
*/
public function testDetach() {
$manager = new CakeEventManager;
$manager->attach(array('AClass', 'aMethod'), 'fake.event');
$manager->attach(array('AClass', 'anotherMethod'), 'another.event');
$manager->attach('fakeFunction', 'another.event', array('priority' => 1));
$manager->detach(array('AClass', 'aMethod'), 'fake.event');
$this->assertEquals(array(), $manager->listeners('fake.event'));
$manager->detach(array('AClass', 'anotherMethod'), 'another.event');
$expected = array(
array('callable' => 'fakeFunction', 'passParams' => false)
);
$this->assertEquals($expected, $manager->listeners('another.event'));
$manager->detach('fakeFunction', 'another.event');
$this->assertEquals(array(), $manager->listeners('another.event'));
}
/**
* Tests detaching an event from all event queues
*
* @return void
*/
public function testDetachFromAll() {
$manager = new CakeEventManager;
$manager->attach(array('AClass', 'aMethod'), 'fake.event');
$manager->attach(array('AClass', 'aMethod'), 'another.event');
$manager->attach('fakeFunction', 'another.event', array('priority' => 1));
$manager->detach(array('AClass', 'aMethod'));
$expected = array(
array('callable' => 'fakeFunction', 'passParams' => false)
);
$this->assertEquals($expected, $manager->listeners('another.event'));
$this->assertEquals(array(), $manager->listeners('fake.event'));
}
/**
* Tests event dispatching
*
* @return void
*/
public function testDispatch() {
$manager = new CakeEventManager;
$listener = $this->getMock('CakeEventTestListener');
$anotherListener = $this->getMock('CakeEventTestListener');
$manager->attach(array($listener, 'listenerFunction'), 'fake.event');
$manager->attach(array($anotherListener, 'listenerFunction'), 'fake.event');
$event = new CakeEvent('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 CakeEventManager;
$listener = new CakeEventTestListener;
$manager->attach(array($listener, 'listenerFunction'), 'fake.event');
$event = 'fake.event';
$manager->dispatch($event);
$expected = array('listenerFunction');
$this->assertEquals($expected, $listener->callStack);
}
/**
* Tests event dispatching with a return value
*
* @return void
*/
public function testDispatchReturnValue() {
$this->skipIf(
version_compare(PHPUnit_Runner_Version::id(), '3.7', '<'),
'These tests fail in PHPUnit 3.6'
);
$manager = new CakeEventManager;
$listener = $this->getMock('CakeEventTestListener');
$anotherListener = $this->getMock('CakeEventTestListener');
$manager->attach(array($listener, 'listenerFunction'), 'fake.event');
$manager->attach(array($anotherListener, 'listenerFunction'), 'fake.event');
$event = new CakeEvent('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
*/
public function testDispatchFalseStopsEvent() {
$this->skipIf(
version_compare(PHPUnit_Runner_Version::id(), '3.7', '<'),
'These tests fail in PHPUnit 3.6'
);
$manager = new CakeEventManager;
$listener = $this->getMock('CakeEventTestListener');
$anotherListener = $this->getMock('CakeEventTestListener');
$manager->attach(array($listener, 'listenerFunction'), 'fake.event');
$manager->attach(array($anotherListener, 'listenerFunction'), 'fake.event');
$event = new CakeEvent('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
*/
public function testDispatchPrioritized() {
$manager = new CakeEventManager;
$listener = new CakeEventTestListener;
$manager->attach(array($listener, 'listenerFunction'), 'fake.event');
$manager->attach(array($listener, 'secondListenerFunction'), 'fake.event', array('priority' => 5));
$event = new CakeEvent('fake.event');
$manager->dispatch($event);
$expected = array('secondListenerFunction', 'listenerFunction');
$this->assertEquals($expected, $listener->callStack);
}
/**
* Tests event dispatching with passed params
*
* @return void
*/
public function testDispatchPassingParams() {
$manager = new CakeEventManager;
$listener = $this->getMock('CakeEventTestListener');
$anotherListener = $this->getMock('CakeEventTestListener');
$manager->attach(array($listener, 'listenerFunction'), 'fake.event');
$manager->attach(array($anotherListener, 'secondListenerFunction'), 'fake.event', array('passParams' => true));
$event = new CakeEvent('fake.event', $this, array('some' => 'data'));
$listener->expects($this->once())->method('listenerFunction')->with($event);
$anotherListener->expects($this->once())->method('secondListenerFunction')->with('data');
$manager->dispatch($event);
}
/**
* Tests subscribing a listener object and firing the events it subscribed to
*
* @return void
*/
public function testAttachSubscriber() {
$manager = new CakeEventManager;
$listener = $this->getMock('CustomTestEventListener', array('secondListenerFunction'));
$manager->attach($listener);
$event = new CakeEvent('fake.event');
$manager->dispatch($event);
$expected = array('listenerFunction');
$this->assertEquals($expected, $listener->callStack);
$listener->expects($this->at(0))->method('secondListenerFunction')->with('data');
$event = new CakeEvent('another.event', $this, array('some' => 'data'));
$manager->dispatch($event);
$manager = new CakeEventManager;
$listener = $this->getMock('CustomTestEventListener', array('listenerFunction', 'thirdListenerFunction'));
$manager->attach($listener);
$event = new CakeEvent('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 CakeEventManager;
$listener = $this->getMock('CustomTestEventListener', array('secondListenerFunction'));
$manager->attach($listener);
$expected = array(
array('callable' => array($listener, 'secondListenerFunction'), 'passParams' => true)
);
$this->assertEquals($expected, $manager->listeners('another.event'));
$expected = array(
array('callable' => array($listener, 'listenerFunction'), 'passParams' => false)
);
$this->assertEquals($expected, $manager->listeners('fake.event'));
$manager->detach($listener);
$this->assertEquals(array(), $manager->listeners('fake.event'));
$this->assertEquals(array(), $manager->listeners('another.event'));
}
/**
* Tests that it is possible to get/set the manager singleton
*
* @return void
*/
public function testGlobalDispatcherGetter() {
$this->assertInstanceOf('CakeEventManager', CakeEventManager::instance());
$manager = new CakeEventManager;
CakeEventManager::instance($manager);
$this->assertSame($manager, CakeEventManager::instance());
}
/**
* Tests that the global event manager gets the event too from any other manager
*
* @return void
*/
public function testDispatchWithGlobal() {
$generalManager = $this->getMock('CakeEventManager', array('dispatch'));
$manager = new CakeEventManager;
$event = new CakeEvent('fake.event');
CakeEventManager::instance($generalManager);
$generalManager->expects($this->once())->method('dispatch')->with($event);
$manager->dispatch($event);
}
/**
* Tests that stopping an event will not notify the rest of the listeners
*
* @return void
*/
public function testStopPropagation() {
$manager = new CakeEventManager;
$listener = new CakeEventTestListener;
$manager->attach(array($listener, 'listenerFunction'), 'fake.event');
$manager->attach(array($listener, 'stopListener'), 'fake.event', array('priority' => 8));
$manager->attach(array($listener, 'secondListenerFunction'), 'fake.event', array('priority' => 5));
$event = new CakeEvent('fake.event');
$manager->dispatch($event);
$expected = array('secondListenerFunction');
$this->assertEquals($expected, $listener->callStack);
}
}