Newscoop\Entity\User::setUsername PHP Метод

    public function setUsername($username)
    {
        $username = preg_replace('~[^\\pL0-9_.]+~u', '-', $username);
        $username = trim($username, '-.');
        $this->username = str_replace('-', ' ', $username);
        return $this;
    }

 public function setUp()
 {
     parent::setUp('Newscoop\\Entity\\User', 'Newscoop\\Entity\\Acl\\Role');
     $this->service = new DoctrineAuthService($this->em);
     $this->user = new User();
     $this->user->setEmail(self::EMAIL);
     $this->user->setUsername(self::USERNAME);
     $this->user->setPassword(self::PASSWORD);
     $this->em->persist($this->user);
     $this->em->flush();
 }