public void GivenEmptyCartAndProduct_WhenUserAddsProductItemsToCart_ThenCartShowsCorrectTotalPrice()
{
// Arrange
var product = new Product("Dove Soap", 39.99);
var cart = new ConsolidateProductItemsShoppingCart();
var firstProductItem = new ProductItem(product, 5);
cart.AddProductItem(firstProductItem);
var secondProductItem = new ProductItem(product, 3);
cart.AddProductItem(secondProductItem);
// Act
var productItemFromCart = cart.ProductItems.First();
// Assert
Assert.That(productItemFromCart.Quantity, Is.EqualTo(8));
}
public void GivenConsolidateProductItemsShoppingCart_WhenAddTwoProductItemsWithSameName_ThenContainsSingleProductItemWithCombinedQuantity()
{
// Arrange
var shoppingCart = new ConsolidateProductItemsShoppingCart();
var firstProductItem = new Mock <IProductItem>();
firstProductItem.Setup(pi => pi.Name).Returns("product name");
firstProductItem.Setup(pi => pi.Quantity).Returns(10);
IAddableProductItem addableProductItem = new AddableProductItem(firstProductItem.Object);
var secondProductItem = new Mock <IProductItem>();
secondProductItem.Setup(pi => pi.Name).Returns("product name");
secondProductItem.Setup(pi => pi.Quantity).Returns(7);
// Act
shoppingCart.AddProductItem(firstProductItem.Object);
shoppingCart.AddProductItem(secondProductItem.Object);
// Assert
Assert.That(shoppingCart.ProductItems.First().Quantity, Is.EqualTo(17));
}