public void TotalPrice_ShouldReturnZeroWhenThereAreNoProductsInTheProductsList_WhenProvidedValidInput()
{
// Arrange
var shoppingCart = new ShoppingCartExtended();
// Act
var result = shoppingCart.TotalPrice();
// Assert
//Assert.AreEqual(0, result);
Assert.That(result, Is.Zero);
}
public void TotalPrice_ShouldReturnTotalPriceOfAllTheProductsInTheProductsList_WhenProvidedValidInput()
{
// Arrange
var productMock = new Mock <IProduct>();
productMock.SetupGet(p => p.Price).Returns(20m);
var productTwoMock = new Mock <IProduct>();
productTwoMock.SetupGet(p => p.Price).Returns(10m);
var shoppingCart = new ShoppingCartExtended();
// Act
shoppingCart.AddProduct(productMock.Object);
shoppingCart.AddProduct(productTwoMock.Object);
var result = shoppingCart.TotalPrice();
// Assert
Assert.AreEqual(30, result);
}