public void CalculateGroupPrice_OneBook()
{
var bookGroup = new BookGroup(new DiscountCalculator());
bookGroup.AddBookToGroup(new Book(BookTitles.GobletOfFire));
bookGroup.CalculateGroupPrice().Should().Be(8m);
}
public void CalculateGroupPrice_TwoBook()
{
var bookGroup = new BookGroup(new DiscountCalculator());
bookGroup.AddBookToGroup(new Book(BookTitles.GobletOfFire));
bookGroup.AddBookToGroup(new Book(BookTitles.ChamberOfSecrets));
bookGroup.CalculateGroupPrice().Should().Be(15.2m);
}
public void CalculateGroupPrice_ThreeBook()
{
var bookGroup = new BookGroup(new DiscountCalculator());
bookGroup.AddBookToGroup(new Book(BookTitles.GobletOfFire));
bookGroup.AddBookToGroup(new Book(BookTitles.ChamberOfSecrets));
bookGroup.AddBookToGroup(new Book(BookTitles.DeathlyHallows));
bookGroup.CalculateGroupPrice().Should().Be(21.6m);
}
public void CalculateGroupPrice_FiveBook()
{
var bookGroup = new BookGroup(new DiscountCalculator());
bookGroup.AddBookToGroup(new Book(BookTitles.GobletOfFire));
bookGroup.AddBookToGroup(new Book(BookTitles.ChamberOfSecrets));
bookGroup.AddBookToGroup(new Book(BookTitles.DeathlyHallows));
bookGroup.AddBookToGroup(new Book(BookTitles.HalfBloodPrince));
bookGroup.AddBookToGroup(new Book(BookTitles.OrderOfThePheonix));
bookGroup.CalculateGroupPrice().Should().Be(30m);
}
