public void Cannot_make_purchase_when_there_is_no_snacks()
{
var snackMachine = new Logic.SnackMachines.SnackMachine();
snackMachine.InsertMoney(Dollar);
Action action = () => snackMachine.BuySnack(1);
action.Should().Throw <InvalidOperationException>();
}
public void Cannot_make_purchase_if_not_enought_money_inserted()
{
var snackMachine = new Logic.SnackMachines.SnackMachine();
snackMachine.LoadSnacks(1, new SnackPile(Chocolate, 2m, 10));
snackMachine.InsertMoney(Dollar);
Action action = () => snackMachine.BuySnack(1);
action.Should().Throw <InvalidOperationException>();
}
public void Cannot_buy_snack_if_not_enough_change()
{
var snackMachine = new Logic.SnackMachines.SnackMachine();
snackMachine.LoadSnacks(1, new SnackPile(Chocolate, 0.5m, 10));
snackMachine.InsertMoney(Dollar);
Action action = () => snackMachine.BuySnack(1);
action.Should().Throw <InvalidOperationException>();
}
public void After_purchase_change_is_returned()
{
var snackMachine = new Logic.SnackMachines.SnackMachine();
snackMachine.LoadSnacks(1, new SnackPile(Chocolate, 0.5m, 10));
snackMachine.LoadMoney(TenCent * 10);
snackMachine.InsertMoney(Dollar);
snackMachine.BuySnack(1);
snackMachine.MoneyInside.Amount.Should().Be(1.5m);
snackMachine.MoneyInTransaction.Should().Be(0m);
}
public void BuySnack_trades_inserted_money_for_a_snack()
{
var snackMachine = new Logic.SnackMachines.SnackMachine();
snackMachine.LoadSnacks(1, new SnackPile(Chocolate, 1m, 10));
snackMachine.InsertMoney(Dollar);
snackMachine.InsertMoney(Dollar);
snackMachine.BuySnack(1);
snackMachine.MoneyInTransaction.Should().Be(0);
snackMachine.MoneyInside.Amount.Should().Be(1m);
snackMachine.GetSnackPile(1).Quantity.Should().Be(9);
}
private void BuySnack(string positionString)
{
int position = int.Parse(positionString);
string error = _snackMachine.CanBuySnack(position);
if (error != string.Empty)
{
NotifyClient(error);
return;
}
_snackMachine.BuySnack(position);
_repository.Save(_snackMachine);
NotifyClient("You have bought a snack");
}
