public void GivenNoObject_WhenRunningProductItemsCountShoppingCartCreated_ReturnsAnInstanceOfIProductAddingShoppingCart()
{
// Arrange, Act
var cart = new RunningProductsCountShoppingCart();
// Assert
Assert.That(cart, Is.InstanceOf(typeof(IProductAddingShoppingCart)));
}
public void GivenEmptyCart_WhenUserAddsXAndThenYItemsOfSameProduct_ThenCartShowsCorrectTotalPrice()
{
// Arrange
var product = new Product("Dove Soap", 39.99);
IProductAddingShoppingCart cart = new RunningProductsCountShoppingCart();
// Act
cart.AddProduct(product, 5);
cart.AddProduct(product, 3);
// Assert
Assert.That(cart.GetTotalPrice(), Is.EqualTo(319.92));
}
public void GivenEmptyCart_WhenUserAddsXAndThenYItemsOfSameProduct_ThenCartShowsCorrectItemCountForThatProduct()
{
// Arrange
var product = new Product("Dove Soap", 39.99);
IProductAddingShoppingCart cart = new RunningProductsCountShoppingCart();
// Act
cart.AddProduct(product, 5);
cart.AddProduct(product, 3);
// Assert
Assert.That(cart.Products.Count(p => p.Name == "Dove Soap"), Is.EqualTo(8));
}
