Neos\Flow\Security\Account::getExpirationDate PHP Метод

    public function getExpirationDate()
    {
        return $this->expirationDate;
    }

 /**
  * @test
  */
 public function expirationDateCanBeSetNull()
 {
     $this->account->setExpirationDate(new \DateTime());
     $this->account->setExpirationDate(null);
     $this->assertEquals(null, $this->account->getExpirationDate());
 }