private void ProcessInput(string name, Money tender)
{
ProductAndChange pac = vm.buy(name, tender);
if (pac.Result == ResultEnum.Ok)
{
Console.WriteLine("Enjoy!");
Console.WriteLine("Change:" + pac.Change);
}
else
{
Console.WriteLine(pac.Message);
}
}
public void Buy_ProductNotAvailable()
{
IVendingMachine vm = new TheVendingMachine(changeAlgorithm);
Product selection = new Product("Fanta", 1.1M);
Money moneyIn = new Money();
moneyIn.Add(DenominationEnum.TwoEuro, 1);
ProductAndChange pac = vm.buy(selection.Name, moneyIn);
Assert.IsNotNull(pac);
Assert.AreEqual(ResultEnum.NoProduct, pac.Result, "Result incorrect. No product expected.");
Assert.IsFalse(String.IsNullOrEmpty(pac.Message), "Message incorrect.");
}
public void Buy_NotEnoughMoney()
{
IVendingMachine vm = new TheVendingMachine(changeAlgorithm);
Product selection = new Product("Fanta", 1.1M);
vm.addProduct(selection, 1);
Money tendered = new Money();
tendered.Add(DenominationEnum.TenCents, 1);
ProductAndChange pac = vm.buy(selection.Name, tendered);
Assert.IsNotNull(pac);
Assert.AreEqual(ResultEnum.NotEnoughMoney, pac.Result, "Result incorrect. Not enough money expected.");
Assert.IsFalse(String.IsNullOrEmpty(pac.Message), "Message incorrect.");
}
public void Buy_CannotGiveChange()
{
IVendingMachine vm = SampleVendingMachine_LimitedFloat();
Money tendered = new Money();
tendered.Add(DenominationEnum.TwoEuro, 2);
decimal expectedFloatAfterSale = vm.getFloat().Total;
decimal expectedChange = tendered.Total - fanta.Price;
ProductAndChange pac = vm.buy(fanta.Name, tendered);
Assert.IsNotNull(pac);
Assert.AreEqual(ResultEnum.NoChange, pac.Result, "Result incorrect. Product expected.");
Assert.IsFalse(String.IsNullOrEmpty(pac.Message), "Message incorrect. Message expected.");
Assert.AreEqual(1, vm.countProduct(fanta.Name), "Product quantity not decremented after sale.");
Assert.AreEqual(expectedFloatAfterSale, vm.getFloat().Total, "The money in the machine after the sale is incorrect.");
}
public void Buy_NoChangeRequired()
{
IVendingMachine vm = SampleVendingMachine_FullFloat();
//23 x 10cents
Money tendered = new Money();
tendered.Add(DenominationEnum.TenCents, 23);
decimal expectedFloatAfterSale = vm.getFloat().Total + fanta.Price;
ProductAndChange pac = vm.buy(fanta.Name, tendered);
Assert.IsNotNull(pac);
Assert.AreEqual(ResultEnum.Ok, pac.Result, "Result incorrect. Product expected.");
Assert.IsTrue(String.IsNullOrEmpty(pac.Message), "Message incorrect. No message expected.");
Assert.AreEqual(fanta, pac.Product, "Product incorrect. Fanta expected.");
Assert.AreEqual(0.0M, pac.Change.Total, "Change incorrect.");
Assert.AreEqual(0, vm.countProduct(fanta.Name), "Product quantity incorrect. Product quantity not decremented after sale.");
Assert.AreEqual(expectedFloatAfterSale, vm.getFloat().Total, "Float incorrect. The float after the sale is incorrect.");
}
