Respect parent class contract in ContainerAwareDoctrineEventManager
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@ -37,51 +37,49 @@ class ContainerAwareEventManager extends EventManager
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}
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/**
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* Dispatches an event to all registered listeners.
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*
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* @param string $eventName The name of the event to dispatch. The name of the event is
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* the name of the method that is invoked on listeners.
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* @param EventArgs $eventArgs The event arguments to pass to the event handlers/listeners.
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* If not supplied, the single empty EventArgs instance is used.
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*
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* @return bool
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* {@inheritdoc}
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*/
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public function dispatchEvent($eventName, EventArgs $eventArgs = null)
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{
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if (isset($this->listeners[$eventName])) {
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$eventArgs = null === $eventArgs ? EventArgs::getEmptyInstance() : $eventArgs;
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if (!isset($this->listeners[$eventName])) {
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return;
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}
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$initialized = isset($this->initialized[$eventName]);
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$eventArgs = null === $eventArgs ? EventArgs::getEmptyInstance() : $eventArgs;
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foreach ($this->listeners[$eventName] as $hash => $listener) {
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if (!$initialized && \is_string($listener)) {
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$this->listeners[$eventName][$hash] = $listener = $this->container->get($listener);
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}
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if (!isset($this->initialized[$eventName])) {
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$this->initializeListeners($eventName);
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}
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$listener->$eventName($eventArgs);
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}
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$this->initialized[$eventName] = true;
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foreach ($this->listeners[$eventName] as $hash => $listener) {
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$listener->$eventName($eventArgs);
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}
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}
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/**
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* Gets the listeners of a specific event or all listeners.
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*
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* @param string $event The name of the event
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*
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* @return array The event listeners for the specified event, or all event listeners
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* {@inheritdoc}
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*/
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public function getListeners($event = null)
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{
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return $event ? $this->listeners[$event] : $this->listeners;
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if (null !== $event) {
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if (!isset($this->initialized[$event])) {
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$this->initializeListeners($event);
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}
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return $this->listeners[$event];
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}
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foreach ($this->listeners as $event => $listeners) {
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if (!isset($this->initialized[$event])) {
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$this->initializeListeners($event);
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}
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}
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return $this->listeners;
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}
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/**
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* Checks whether an event has any registered listeners.
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*
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* @param string $event
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*
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* @return bool TRUE if the specified event has any listeners, FALSE otherwise
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* {@inheritdoc}
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*/
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public function hasListeners($event)
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{
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@ -89,20 +87,11 @@ class ContainerAwareEventManager extends EventManager
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}
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/**
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* Adds an event listener that listens on the specified events.
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*
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* @param string|array $events The event(s) to listen on
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* @param object|string $listener The listener object
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*
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* @throws \RuntimeException
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* {@inheritdoc}
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*/
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public function addEventListener($events, $listener)
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{
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if (\is_string($listener)) {
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if ($this->initialized) {
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throw new \RuntimeException('Adding lazy-loading listeners after construction is not supported.');
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}
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$hash = '_service_'.$listener;
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} else {
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// Picks the hash code related to that listener
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@ -113,14 +102,15 @@ class ContainerAwareEventManager extends EventManager
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// Overrides listener if a previous one was associated already
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// Prevents duplicate listeners on same event (same instance only)
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$this->listeners[$event][$hash] = $listener;
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if (\is_string($listener)) {
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unset($this->initialized[$event]);
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}
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}
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}
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/**
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* Removes an event listener from the specified events.
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*
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* @param string|array $events
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* @param object|string $listener
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* {@inheritdoc}
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*/
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public function removeEventListener($events, $listener)
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{
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@ -138,4 +128,17 @@ class ContainerAwareEventManager extends EventManager
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}
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}
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}
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/**
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* @param string $eventName
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*/
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private function initializeListeners($eventName)
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{
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foreach ($this->listeners[$eventName] as $hash => $listener) {
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if (\is_string($listener)) {
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$this->listeners[$eventName][$hash] = $this->container->get($listener);
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}
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}
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$this->initialized[$eventName] = true;
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}
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}
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@ -28,8 +28,8 @@ class ContainerAwareEventManagerTest extends TestCase
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public function testDispatchEvent()
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{
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$this->container->set('foobar', $listener1 = new MyListener());
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$this->evm->addEventListener('foo', 'foobar');
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$this->container->set('lazy', $listener1 = new MyListener());
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$this->evm->addEventListener('foo', 'lazy');
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$this->evm->addEventListener('foo', $listener2 = new MyListener());
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$this->evm->dispatchEvent('foo');
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@ -38,19 +38,69 @@ class ContainerAwareEventManagerTest extends TestCase
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$this->assertTrue($listener2->called);
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}
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public function testAddEventListenerAfterDispatchEvent()
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{
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$this->container->set('lazy1', $listener1 = new MyListener());
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$this->evm->addEventListener('foo', 'lazy1');
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$this->evm->addEventListener('foo', $listener2 = new MyListener());
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$this->evm->dispatchEvent('foo');
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$this->container->set('lazy2', $listener3 = new MyListener());
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$this->evm->addEventListener('foo', 'lazy2');
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$this->evm->addEventListener('foo', $listener4 = new MyListener());
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$this->evm->dispatchEvent('foo');
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$this->assertTrue($listener1->called);
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$this->assertTrue($listener2->called);
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$this->assertTrue($listener3->called);
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$this->assertTrue($listener4->called);
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}
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public function testGetListenersForEvent()
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{
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$this->container->set('lazy', $listener1 = new MyListener());
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$this->evm->addEventListener('foo', 'lazy');
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$this->evm->addEventListener('foo', $listener2 = new MyListener());
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$this->assertSame([$listener1, $listener2], array_values($this->evm->getListeners('foo')));
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}
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public function testGetListeners()
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{
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$this->container->set('lazy', $listener1 = new MyListener());
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$this->evm->addEventListener('foo', 'lazy');
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$this->evm->addEventListener('foo', $listener2 = new MyListener());
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$this->assertSame([$listener1, $listener2], array_values($this->evm->getListeners()['foo']));
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}
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public function testRemoveEventListener()
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{
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$this->evm->addEventListener('foo', 'bar');
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$this->evm->addEventListener('foo', $listener = new MyListener());
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$this->container->set('lazy', $listener1 = new MyListener());
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$this->evm->addEventListener('foo', 'lazy');
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$this->evm->addEventListener('foo', $listener2 = new MyListener());
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$listeners = ['foo' => ['_service_bar' => 'bar', spl_object_hash($listener) => $listener]];
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$this->assertSame($listeners, $this->evm->getListeners());
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$this->assertSame($listeners['foo'], $this->evm->getListeners('foo'));
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$this->evm->removeEventListener('foo', $listener2);
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$this->assertSame([$listener1], array_values($this->evm->getListeners('foo')));
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$this->evm->removeEventListener('foo', $listener);
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$this->assertSame(['_service_bar' => 'bar'], $this->evm->getListeners('foo'));
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$this->evm->removeEventListener('foo', 'lazy');
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$this->assertSame([], $this->evm->getListeners('foo'));
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}
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$this->evm->removeEventListener('foo', 'bar');
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public function testRemoveEventListenerAfterDispatchEvent()
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{
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$this->container->set('lazy', $listener1 = new MyListener());
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$this->evm->addEventListener('foo', 'lazy');
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$this->evm->addEventListener('foo', $listener2 = new MyListener());
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$this->evm->dispatchEvent('foo');
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$this->evm->removeEventListener('foo', $listener2);
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$this->assertSame([$listener1], array_values($this->evm->getListeners('foo')));
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$this->evm->removeEventListener('foo', 'lazy');
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$this->assertSame([], $this->evm->getListeners('foo'));
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}
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}
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