public void Then_The_Basket_Total_Is_Eight(BookTitle title, double expected)
{
var potterCalculator = new PotterCalculator();
var actual = potterCalculator.Calculate(new List<BookTitle> {title});
Assert.That(actual, Is.EqualTo(expected));
}
public void Then_I_Get_5_Percent_Discount(BookTitle firstBookTitle, BookTitle secondBookTitle,
BookTitle thirdBookTitle, BookTitle fourthBookTitle)
{
var potterCalculator = new PotterCalculator();
var bookList = new List<BookTitle> {firstBookTitle, secondBookTitle, thirdBookTitle, fourthBookTitle};
Assert.That(potterCalculator.Calculate(bookList), Is.EqualTo(25.6M));
potterCalculator.Calculate(bookList)
.Should()
.Be(25.6M, "When you have four different books in you basket, you get 5% discount");
}
public void Then_I_Get_Discounts_Accordingly()
{
var potterCalculator = new PotterCalculator();
var bookList = new List<BookTitle> {BookTitle.TitleOne, BookTitle.TitleTwo,BookTitle.TitleThree, BookTitle.TitleOne, BookTitle.TitleTwo, BookTitle.TitleThree, BookTitle.TitleFour, BookTitle.TitleFive};
potterCalculator.Calculate(bookList).Should().Be(54M);
}
public void Then_I_Get_5_Percent_Discount(BookTitle firstBookTitle, BookTitle secondBookTitle,
BookTitle thirdBookTitle)
{
var potterCalculator = new PotterCalculator();
var bookList = new List<BookTitle> {firstBookTitle, secondBookTitle, thirdBookTitle};
Assert.That(potterCalculator.Calculate(bookList), Is.EqualTo(23.2M));
potterCalculator.Calculate(bookList)
.Should()
.Be(23.2M,
"When you have 2 same books in you basket and one different, you get 5% discount on two books and no discount on one book");
}