load listener on listener provider

Author: kpicaza

src/ListenerProvider.php

@@ -29,6 +29,8 @@ public function addListener(string $eventClass, callable $listener): void
      */
     public function getListenersForEvent(object $event): iterable
     {
-        return $this->listenerCollection->get(get_class($event));
+        foreach ($this->listenerCollection->get(get_class($event)) as $listenerFactory) {
+            yield $listenerFactory();
+        }
     }
 }

test/ListenerProviderTest.php

@@ -46,7 +46,9 @@ private function whenListenersAreAddedToProvider(): void
     {
         $this->provider = new ListenerProvider();
         foreach ($this->listeners as $listener) {
-            $this->provider->addListener(TestEvent::class, $listener);
+            $this->provider->addListener(TestEvent::class, function () use ($listener) {
+                return $listener;
+            });
         }
     }