public void DiscountBookPricesWithTopSet_WhenBooksArePurchasedUnderBookCompositeWithAnotherComposite()
{
// Arrange
var book1 = new Book("Effective C++", 65.0M);
var book2 = new Book("More Effective C++", 35.0M);
var bookCompositeCpp = new BookComposite(5, "Effective C++ Series");
bookCompositeCpp.Add(book1);
bookCompositeCpp.Add(book2);
var bookCompositeCSharp = new BookComposite(10, "Effective C# Series");
var book3 = new Book("Effective C#", 70.0M);
var book4 = new Book("Pro C# Coding", 30.0M);
bookCompositeCSharp.Add(book3);
bookCompositeCSharp.Add(book4);
var effectiveSeries = new BookComposite(15, "Effective Coding Series");
effectiveSeries.Add(bookCompositeCpp);
effectiveSeries.Add(bookCompositeCSharp);
// Act
var effectiveSeriesPrice = ComputeDiscount(effectiveSeries.Discount, effectiveSeries.Price);
// Assert
effectiveSeriesPrice.Should().Be(170.0M);
}
public void DiscountBookPriceAsSet_WhenBooksArePurchasedUnderBookComposite()
{
// Arrange
var book1 = new Book("Effective C++", 65.0M);
var book2 = new Book("More Effective C++", 35.0M);
var bookComposite = new BookComposite(5, "Effective C++ Series");
bookComposite.Add(book1);
bookComposite.Add(book2);
// Act
var compositePrice = ComputeDiscount(bookComposite.Discount, bookComposite.Price);
// Assert
compositePrice.Should().Be(95.0M);
}
