public void CalculateCartTotal()
{
// Arrange - create some test products
var p1 = new Product { ProductID = 1, Name = "P1", Price = 100M };
var p2 = new Product { ProductID = 2, Name = "P2", Price = 50M };
// Arrange - create a new cart
var target = new Cart();
// Act
target.AddItem(p1, 1);
target.AddItem(p2, 1);
target.AddItem(p1, 3);
decimal result = target.ComputeTotalValue();
// Assert
Assert.AreEqual(result, 450M);
}
public void CanAddNewLines()
{
// Arrange - create some test products
var p1 = new Product { ProductID = 1, Name = "P1" };
var p2 = new Product { ProductID = 2, Name = "P2" };
// Arrange - create a new cart
var target = new Cart();
// Act
target.AddItem(p1, 1);
target.AddItem(p2, 1);
CartLine[] results = target.Lines.ToArray();
// Assert
Assert.AreEqual(results.Length, 2);
Assert.AreEqual(results[0].Product, p1);
Assert.AreEqual(results[1].Product, p2);
}
public RedirectToRouteResult AddToCart(Cart cart, int productId, string returnUrl)
{
Product product = this.repository.Products.FirstOrDefault(p => p.ProductID == productId);
if (product != null)
{
cart.AddItem(product, 1);
}
return this.RedirectToAction("Index", new { returnUrl });
}
public void CanAddQuantityForExistingLines()
{
// Arrange - create some test products
var p1 = new Product { ProductID = 1, Name = "P1" };
var p2 = new Product { ProductID = 2, Name = "P2" };
// Arrange - create a new cart
var target = new Cart();
// Act
target.AddItem(p1, 1);
target.AddItem(p2, 1);
target.AddItem(p1, 10);
CartLine[] results = target.Lines.OrderBy(c => c.Product.ProductID).ToArray();
// Assert
Assert.AreEqual(results.Length, 2);
Assert.AreEqual(results[0].Quantity, 11);
Assert.AreEqual(results[1].Quantity, 1);
}
public void CanRemoveLine()
{
// Arrange - create some test products
var p1 = new Product { ProductID = 1, Name = "P1" };
var p2 = new Product { ProductID = 2, Name = "P2" };
var p3 = new Product { ProductID = 3, Name = "P3" };
// Arrange - create a new cart
var target = new Cart();
// Arrange - add some products to the cart
target.AddItem(p1, 1);
target.AddItem(p2, 3);
target.AddItem(p3, 5);
target.AddItem(p2, 1);
// Act
target.RemoveLine(p2);
// Assert
Assert.AreEqual(target.Lines.Count(c => c.Product == p2), 0);
Assert.AreEqual(target.Lines.Count(), 2);
}
public void CanClearContents()
{
// Arrange - create some test products
var p1 = new Product { ProductID = 1, Name = "P1", Price = 100M };
var p2 = new Product { ProductID = 2, Name = "P2", Price = 50M };
// Arrange - create a new cart
var target = new Cart();
// Arrange - add some items
target.AddItem(p1, 1);
target.AddItem(p2, 1);
// Act - reset the cart
target.Clear();
// Assert
Assert.AreEqual(target.Lines.Count(), 0);
}
public void CanCheckoutAndSubmitOrder()
{
// Arrange - create a mock order processor
var mock = new Mock<IOrderProcessor>();
// Arrange - create a cart with an item
var cart = new Cart();
cart.AddItem(new Product(), 1);
// Arrange - create an instance of the controller
var target = new CartController(null, mock.Object);
// Act - try to checkout
ViewResult result = target.Checkout(cart, new ShippingDetails());
// Assert - check that the order has been passed on to the processor
mock.Verify(m => m.ProcessOrder(It.IsAny<Cart>(), It.IsAny<ShippingDetails>()), Times.Once());
// Assert - check that the method is returning the Completed view
Assert.AreEqual("Completed", result.ViewName);
// Assert - check that we are passing a valid model to the view
Assert.AreEqual(true, result.ViewData.ModelState.IsValid);
}
public void CannotCheckoutInvalidShippingDetails()
{
// Arrange - create a mock order processor
var mock = new Mock<IOrderProcessor>();
// Arrange - create a cart with an item
var cart = new Cart();
cart.AddItem(new Product(), 1);
// Arrange - create an instance of the controller
var target = new CartController(null, mock.Object);
// Arrange - add an error to the model
target.ModelState.AddModelError("error", "error");
// Act - try to checkout
ViewResult result = target.Checkout(cart, new ShippingDetails());
// Assert - check that the order hasn't been passed on to the processor
mock.Verify(m => m.ProcessOrder(It.IsAny<Cart>(), It.IsAny<ShippingDetails>()), Times.Never());
// Assert - check that the method is returning the default view
Assert.AreEqual(string.Empty, result.ViewName);
// Assert - check that we are passing an invalid model to the view
Assert.AreEqual(false, result.ViewData.ModelState.IsValid);
}