public void SimpleVendingMachine_OnRequestToVendOfMoreThan25Cans_ThrowsException()
{
var paymentProvider = MockRepository.GenerateMock <IPaymentProvider>();
paymentProvider.Expect(x => x.HasBalance()).Return(true);
paymentProvider.Expect(x => x.IsValidPin(Arg <string> .Is.NotNull)).Return(true);
paymentProvider.Expect(x => x.UpdateCardBalance(Arg <Payment> .Is.Anything)).Return(true);
SimpleVendingMachine machine = new SimpleVendingMachine();
for (int i = 0; i < 25; i++)
{
machine.SelectItem(ItemType.SoftDrink);
machine.Vend(paymentProvider, "12345");
}
Assert.Throws <Exception>(() => machine.SelectItem(ItemType.SoftDrink));
}
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)));
}