public void PurchaseProduct_When_OneEuroCoinsAddedEspressoProductPurchased_Then_ReturnFailed()
{
//Arrange
var coin = Coin.OneEuro;
var product = Product.Espresso;
var inventory = new List <ProductSlot>
{
new ProductSlot(product)
};
var purse = new List <CoinSlot>
{
new CoinSlot(Coin.TwentyCents)
};
var vendingMachine = new VendingMachine(inventory, purse);
var sut = new PurchaseProductUseCase(vendingMachine);
//Act
sut.InsertCoin(coin);
var actual = sut.PurchaseProduct(product);
//Assert
actual.HasFailed.Should().BeTrue();
actual.PurchaseFailedReason.Should().Be(PurchaseFailedType.InsufficientCoins);
actual.ProductPurchased.Should().Be(product);
}
public void PurchaseProduct_When_TwoOneEuroCoinsAddedChickenSoupProductPurchased_Then_ReturnSuccess()
{
//Arrange
var coin = Coin.OneEuro;
var product = Product.ChickenSoup;
var coinReturned = new List <CoinSlot>
{
new CoinSlot(Coin.TwentyCents)
};
var inventory = new List <ProductSlot>
{
new ProductSlot(product)
};
var purse = new List <CoinSlot>
{
new CoinSlot(Coin.TwentyCents),
new CoinSlot(Coin.FiftyCents)
};
var vendingMachine = new VendingMachine(inventory, purse);
var sut = new PurchaseProductUseCase(vendingMachine);
//Act
sut.InsertCoin(coin);
sut.InsertCoin(coin);
var actual = sut.PurchaseProduct(product);
//Assert
actual.HasFailed.Should().BeFalse();
actual.ProductPurchased.Should().Be(product);
actual.CoinsReturned.Should().BeEquivalentTo(coinReturned);
}
public async Task ReceiveSelectedProduct(string productId)
{
Product productSelected;
switch (productId)
{
case "teaProduct":
productSelected = Product.Tea;
break;
case "espressoProduct":
productSelected = Product.Espresso;
break;
case "juiceProduct":
productSelected = Product.Juice;
break;
case "chickenSoupProduct":
productSelected = Product.ChickenSoup;
break;
default:
await SendVendingMachineMessage("Product not found, please try again!");
throw new Exception($"Please insert valid productId, actual: {productId}");
}
var result = _useCase.PurchaseProduct(productSelected);
string message;
if (result.HasFailed)
{
message = $"{result.Message}";
if (result.PurchaseFailedReason == PurchaseFailedType.ProductOutOfStock)
{
SendProductOutOfStock(result.ProductPurchased.Name);
}
}
else
{
message = $"{result.Message} \r\n" +
$"Coins to return: {string.Join(", ", result.CoinsReturned.Select(slot => $"{slot.Amount} x €{slot.Value}"))}";
}
await SendVendingMachineMessage(message);
}
