/**
  * Test getInstance()
  *
  * @param KunenaForumTopicUser $topicuser
  * @return KunenaForumTopicUser
  * @depends testCreate
  */
 public function testGetInstance(KunenaForumTopicUser $topicuser)
 {
     $admin = KunenaFactory::getUser('admin');
     $topicuser2 = KunenaForumTopicUser::getInstance($topicuser->topic_id, $admin->userid);
     $this->assertSame($topicuser, $topicuser2);
     return $topicuser;
 }