Braintree.Tests.Integration.CreditCardIntegrationTest.CheckDuplicateCreditCard C# (CSharp) Метод

        public void CheckDuplicateCreditCard()
        {
            Customer customer = gateway.Customer.Create(new CustomerRequest()).Target;
            CreditCardRequest request = new CreditCardRequest
            {
                CustomerId = customer.Id,
                CardholderName = "John Doe",
                CVV = "123",
                Number = "4111111111111111",
                ExpirationDate = "05/12",
                Options = new CreditCardOptionsRequest
                {
                    FailOnDuplicatePaymentMethod = true
                }
            };

            gateway.CreditCard.Create(request);
            Result<CreditCard> result = gateway.CreditCard.Create(request);
            Assert.IsFalse(result.IsSuccess());
            Assert.AreEqual(
                ValidationErrorCode.CREDIT_CARD_DUPLICATE_CARD_EXISTS,
                result.Errors.ForObject("CreditCard").OnField("Number")[0].Code
            );
        }