public void TwoBooks_16Bucks()
{
BookSet set = new BookSet();
set.AddBook(0);
set.AddBook(1);
Assert.AreEqual(15.2d, set.CalculatePrice());
}
public void OneBook_8Bucks()
{
BookSet set = new BookSet();
set.AddBook(0);
Assert.AreEqual(8, set.CalculatePrice());
}
public void EmptySet_CostsNothing()
{
BookSet set = new BookSet();
Assert.AreEqual(0, set.CalculatePrice());
}
