public function testGetSetPayByCard()
 {
     $expectedCardDetails = 'Number 1234567890123456 \\n Expiry 01/18\\n CCV 123\\n Name A Test Card User';
     $this->assertEquals(PowerOfAttorney::PAYMENT_OPTION_NOT_SET, $this->poa->getPaymentByDebitCreditCard());
     $this->poa->setPaymentByDebitCreditCard(PowerOfAttorney::PAYMENT_OPTION_TRUE)->setCardPaymentContact($expectedCardDetails);
     $this->assertEquals(PowerOfAttorney::PAYMENT_OPTION_TRUE, $this->poa->getPaymentByDebitCreditCard());
     $this->assertEquals($expectedCardDetails, $this->poa->getCardPaymentContact());
 }