Fix up typos and syntax errors and add tests to Event system

tests/EventManagerTest.php

@@ -0,0 +1,129 @@
+<?php
+declare(strict_types=1);
+
+namespace LotGD\Core\Tests;
+
+use LotGD\Core\EventManager;
+use LotGD\Core\Models\EventSubscription;
+use LotGD\Core\EventHandler;
+use LotGD\Core\Exceptions\WrongTypeException;
+use LotGD\Core\Exceptions\ClassNotFoundException;
+use LotGD\Core\Exceptions\SubscriptionNotFoundException;
+use LotGD\Core\Tests\ModelTestCase;
+
+class EventManagerTestInvalidSubscriber
+{
+
+}
+
+class EventManagerTestSubscriber implements EventHandler
+{
+    public static function handleEvent(string $event, array $context) {}
+}
+
+class EventManagerTestInstalledSubscriber implements EventHandler
+{
+    public static function handleEvent(string $event, array $context) {
+        $context['foo'] = 'baz';
+        return $context;
+    }
+}
+
+class EventManagerTest extends ModelTestCase
+{
+    /** @var string default data set */
+    protected $dataset = "eventManager";
+
+    public function testSubscribeNoClass()
+    {
+        $em = new EventManager($this->getEntityManager());
+
+        $this->expectException(ClassNotFoundException::class);
+        $em->subscribe("/test.event/", 'LotGD\Core\Tests\NoClassHere');
+    }
+
+    public function testSubscribeInvalidClass()
+    {
+        $em = new EventManager($this->getEntityManager());
+
+        $this->expectException(WrongTypeException::class);
+        $em->subscribe("/test.event/", 'LotGD\Core\Tests\EventManagerTestInvalidSubscriber');
+    }
+
+    public function testSubscribeInvalidRegexp()
+    {
+        $em = new EventManager($this->getEntityManager());
+
+        $this->expectException(WrongTypeException::class);
+        $em->subscribe("/test.event", 'LotGD\Core\Tests\EventManagerTestSubscriber');
+    }
+
+    public function testGetSubscriptions()
+    {
+      $em = new EventManager($this->getEntityManager());
+
+      $pattern = "/test\\.foo.*/";
+      $class = 'LotGD\\Core\\Tests\\EventManagerTestInstalledSubscriber';
+
+      $sub = EventSubscription::create([
+          'pattern' => $pattern,
+          'class' => $class,
+      ]);
+
+      $subscriptions = $em->getSubscriptions();
+      $this->assertContainsOnlyInstancesOf(EventSubscription::class, $subscriptions);
+
+      // This is a little fragile, but assertContains() doesn't seem to work.
+      $this->assertEquals($sub, $subscriptions[0]);
+    }
+
+    public function testSubscribeSuccess()
+    {
+        $em = new EventManager($this->getEntityManager());
+
+        $pattern = "/test.event/";
+        $class = 'LotGD\Core\Tests\EventManagerTestSubscriber';
+
+        $em->subscribe($pattern, $class);
+
+        $sub = EventSubscription::create([
+            'pattern' => $pattern,
+            'class' => $class,
+        ]);
+
+        $subscriptions = $em->getSubscriptions();
+        $this->assertContainsOnlyInstancesOf(EventSubscription::class, $subscriptions);
+
+        // This is a little fragile, but assertContains() doesn't seem to work.
+        $this->assertEquals($sub, $subscriptions[1]);
+    }
+
+    public function testUnsubscribeSuccess()
+    {
+        $em = new EventManager($this->getEntityManager());
+
+        $em->unsubscribe("/test\\.foo.*/", 'LotGD\Core\Tests\EventManagerTestInstalledSubscriber');
+
+        $subscriptions = $em->getSubscriptions();
+        $this->assertEmpty($subscriptions);
+    }
+
+    public function testUnsubscribeNotFound()
+    {
+        $em = new EventManager($this->getEntityManager());
+
+        $this->expectException(SubscriptionNotFoundException::class);
+        $em->unsubscribe("/notfound/", 'LotGD\Core\Tests\EventManagerTestInstalledSubscriber');
+    }
+
+    public function testPublish()
+    {
+        $em = new EventManager($this->getEntityManager());
+
+        $event = 'test.foo.something_here';
+        $context = array('foo' => 'bar');
+
+        $em->publish($event, $context);
+        $this->assertEquals($context['foo'], 'baz');
+    }
+}