public void PaymentProvider_OnUpdateCardBalance_UpdatesCardBalance()
{
IPaymentProvider paymentProvider =
new CashCardPaymentProvider(
new CashCard(new Account("HSBC", "Avinash Jethani", new Payment(1m, CurrencyEnum.GBP)),
"12345"));
var isValid = paymentProvider.IsValidPin("12345");
var updatesCardBalance = paymentProvider.UpdateCardBalance(new Payment(0.5m, CurrencyEnum.GBP));
Assert.That(isValid, Is.EqualTo(true));
Assert.That(updatesCardBalance, Is.EqualTo(true));
Assert.That(paymentProvider.CardBalance, Is.EqualTo(new Payment(0.5m, CurrencyEnum.GBP)));
}
public void SimpleVendingMachine_OnMultipleCashCardsLinkedtoSingleAccount_UpdatesAccountSuccessfully()
{
var account = new Account("HSBC", "Avinash Jethani", new Payment(1000m, CurrencyEnum.GBP));
var cashCard1 = new CashCard(account, "12345");
var cashCard2 = new CashCard(account, "67890");
IPaymentProvider paymentProvider1 = new CashCardPaymentProvider(cashCard1);
IPaymentProvider paymentProvider2 = new CashCardPaymentProvider(cashCard2);
SimpleVendingMachine machine = new SimpleVendingMachine();
machine.SelectItem(ItemType.SoftDrink);
machine.Vend(paymentProvider1, "12345");
machine.SelectItem(ItemType.SoftDrink);
machine.Vend(paymentProvider2, "67890");
Assert.That(cashCard1.CurrentBalance, Is.EqualTo(new Payment(999m, CurrencyEnum.GBP)));
Assert.That(cashCard2.CurrentBalance, Is.EqualTo(new Payment(999m, CurrencyEnum.GBP)));
Assert.That(account.CurrentBalance, Is.EqualTo(new Payment(999m, CurrencyEnum.GBP)));
}