public void Test_CalculateAccumulativeDiscount_Returns2_When7BooksInBasket()
{
//arrange
Checkout checkout = new Checkout();
Basket basket = new Basket();
Book book1 = new Book();
Book book2 = new Book();
Book book3 = new Book();
Book book4 = new Book();
Book book5 = new Book();
Book book6 = new Book();
Book book7 = new Book();
basket.AddBook(book1);
basket.AddBook(book2);
basket.AddBook(book3);
basket.AddBook(book4);
basket.AddBook(book5);
basket.AddBook(book6);
basket.AddBook(book7);
//act
decimal actualDiscount = checkout.CalculateAccumulativeDiscount(basket.FindAllBooks());
//assert
Assert.That(actualDiscount, Is.EqualTo(2));
}
public void Test_CalculateAccumulativeDiscount_Returns0_WhenNoBooksInBasket()
{
//arrange
Checkout checkout = new Checkout();
Basket basket = new Basket();
//act
decimal actualDiscount = checkout.CalculateAccumulativeDiscount(basket.FindAllBooks());
//assert
Assert.That(actualDiscount, Is.EqualTo(0));
}
