public void CartCheckout_ValidOrders_NoUser_Fails()
{
var wineToBuy = new Wine { Name = "Great red wine" };
cart.User = null;
cart.AddLineToCart(new OrderLine(wineToBuy) { Quantity = 2 });
Assert.Throws<InvalidOperationException>(() => cart.CheckOut());
}
public OrderLine(Wine wineToBuy)
{
if (wineToBuy == null)
throw new ArgumentNullException("wineToBuy");
_wineToBuy = wineToBuy;
Quantity = 1;
}
public void CartAddLessOrZeroQuantityElements_Fails(int lessQuantity)
{
var wineToBuy = new Wine { Name = "Great red wine" };
var line = new OrderLine(wineToBuy)
{
Quantity = lessQuantity,
Price = 10
};
Assert.Throws<InvalidOperationException>(() => cart.AddLineToCart(line));
}
public void CartCheckoutPriceOK_OneLine()
{
var wineToBuy = new Wine { Name = "Great red wine" };
var line = new OrderLine(wineToBuy)
{
Quantity = 5,
Price = 50
};
cart.AddLineToCart(line);
cart.CheckOut();
Assert.AreEqual(250, cart.TotalPrice);
}
