/**
  * Test method for the <tt>getPageId()</tt> and <tt>setPageId($pageId)</tt> functions.
  */
 public function testGetSetPageId()
 {
     $notification = new Notification();
     $this->assertNull($notification->getPageId());
     $this->assertSame($notification, $notification->setPageId(15));
     $this->assertEquals(15, $notification->getPageId());
 }