public void Test_CalculateSumOfPrices_Returns0_WhenNoBooksInBasket()
{
//arrange
Checkout checkout = new Checkout();
Basket basket = new Basket();
//act
decimal actualDiscount = checkout.CalculateSumOfPrices(basket.FindAllBooks());
//assert
Assert.That(actualDiscount, Is.EqualTo(0));
}
public void Test_CalculateSumOfPrices_ReturnsBookPrice_When1BookInBasket()
{
//arrange
Checkout checkout = new Checkout();
Basket basket = new Basket();
basket.AddBook(new Book("", "", "", (decimal)20.25, 60));
//act
decimal actualValue = checkout.CalculateSumOfPrices(basket.FindAllBooks());
//assert
Assert.That(actualValue, Is.EqualTo(20.25));
}
public void Test_CalculateSumOfPrices_ReturnsSumOfBookPrices_When2BooksInBasket()
{
//arrange
Checkout checkout = new Checkout();
Basket basket = new Basket();
Book book1 = new Book("", "", "", (decimal)10.00, 70);
Book book2 = new Book("", "", "", (decimal)25.00, 200);
basket.AddBook(book1);
basket.AddBook(book2);
//act
decimal actualDiscount = checkout.CalculateSumOfPrices(basket.FindAllBooks());
//assert
Assert.That(actualDiscount, Is.EqualTo(10.00 + 25.00));
}
