PHP7 Observer

Behavioral/Observer/Tests/ObserverTest.php

@@ -5,65 +5,16 @@ namespace DesignPatterns\Behavioral\Observer\Tests;
 use DesignPatterns\Behavioral\Observer\User;
 use DesignPatterns\Behavioral\Observer\UserObserver;
 
-/**
- * ObserverTest tests the Observer pattern.
- */
 class ObserverTest extends \PHPUnit_Framework_TestCase
 {
-    protected $observer;
-
-    protected function setUp()
+    public function testChangeInUserLeadsToUserObserverBeingNotified()
     {
-        $this->observer = new UserObserver();
-    }
+        $observer = new UserObserver();
 
-    /**
-     * Tests the notification.
-     */
-    public function testNotify()
-    {
-        $this->expectOutputString('DesignPatterns\Behavioral\Observer\User has been updated');
-        $subject = new User();
+        $user = new User();
+        $user->attach($observer);
 
-        $subject->attach($this->observer);
-        $subject->property = 123;
-    }
-
-    /**
-     * Tests the subscribing.
-     */
-    public function testAttachDetach()
-    {
-        $subject = new User();
-        $reflection = new \ReflectionProperty($subject, 'observers');
-
-        $reflection->setAccessible(true);
-        /** @var \SplObjectStorage $observers */
-        $observers = $reflection->getValue($subject);
-
-        $this->assertInstanceOf('SplObjectStorage', $observers);
-        $this->assertFalse($observers->contains($this->observer));
-
-        $subject->attach($this->observer);
-        $this->assertTrue($observers->contains($this->observer));
-
-        $subject->detach($this->observer);
-        $this->assertFalse($observers->contains($this->observer));
-    }
-
-    /**
-     * Tests the update() invocation on a mockup.
-     */
-    public function testUpdateCalling()
-    {
-        $subject = new User();
-        $observer = $this->createMock('SplObserver');
-        $subject->attach($observer);
-
-        $observer->expects($this->once())
-            ->method('update')
-            ->with($subject);
-
-        $subject->notify();
+        $user->changeEmail('foo@bar.com');
+        $this->assertCount(1, $observer->getChangedUsers());
     }
 }