/**
  * @test
  */
 public function expirationDateCanBeSetNull()
 {
     $this->account->setExpirationDate(new \DateTime());
     $this->account->setExpirationDate(NULL);
     $this->assertEquals(NULL, $this->account->getExpirationDate());
 }
 /**
  * {@inheritDoc}
  */
 public function getExpirationDate()
 {
     $this->__initializer__ && $this->__initializer__->__invoke($this, 'getExpirationDate', array());
     return parent::getExpirationDate();
 }