public void TestAddCreditCardToCustomer()
        {
            string date = DateTime.Now.ToString();

            Moip.Models.CustomerRequest customerRequest = Helpers.RequestsCreator.CreateCustomerRequest(date);

            string customerId = controller.CreateCustomer(customerRequest).Id;

            Moip.Models.CustomerCreditCardRequest customerCreditCardRequest = Helpers.RequestsCreator.CreateCustomerCreditCardRequest();

            Moip.Models.CustomerCreditCardResponse customerCreditCardResponse = controller.CreateCreditCard(customerCreditCardRequest, customerId);

            Assert.NotNull(customerCreditCardResponse.CreditCard.Id, "Id should not be null");
            Assert.AreEqual("MASTERCARD", customerCreditCardResponse.CreditCard.Brand, "Should match exactly (string literal match)");
            Assert.AreEqual("555566", customerCreditCardResponse.CreditCard.First6, "Should match exactly (string literal match)");
            Assert.AreEqual("8884", customerCreditCardResponse.CreditCard.Last4, "Should match exactly (string literal match)");
            Assert.IsTrue(customerCreditCardResponse.CreditCard.Store, "Store should be true");
            Assert.AreEqual("MASTERCARD", customerCreditCardResponse.Card.Brand, "Should match exactly (string literal match)");
            Assert.IsTrue(customerCreditCardResponse.Card.Store, "Store should be true");
            Assert.AreEqual("CREDIT_CARD", customerCreditCardResponse.Method, "Should match exactly (string literal match)");
        }