internal void AddBooks(Book book, int count = 1)
{
for (int i = 0; i < count; i++)
{
this._books.Add(book);
}
}
public void 一二三集各買了一本_價格應為270()
{
//arrange
List<Book> books = new List<Book>();
Book newbook1 = new Book(1, "哈利波特 1", 100);
Book newbook2 = new Book(2, "哈利波特 2", 100);
Book newbook3 = new Book(3, "哈利波特 3", 100);
books.Add(newbook1);
books.Add(newbook2);
books.Add(newbook3);
//act
double totalPrice = PotterShoppingCart.OrderBook(books);
//assert
Assert.AreEqual(270, totalPrice);
}
public void 一次買了整套_一二三四五集各買了一本_價格應為_375()
{
//arrange
List<Book> books = new List<Book>();
Book newbook1 = new Book(1, "哈利波特 1", 100);
Book newbook2 = new Book(2, "哈利波特 2", 100);
Book newbook3 = new Book(3, "哈利波特 3", 100);
Book newbook4 = new Book(4, "哈利波特 4", 100);
Book newbook5 = new Book(5, "哈利波特 5", 100);
books.Add(newbook1);
books.Add(newbook2);
books.Add(newbook3);
books.Add(newbook4);
books.Add(newbook5);
//act
double totalPrice = PotterShoppingCart.OrderBook(books);
//assert
Assert.AreEqual(375, totalPrice);
}
public void 第一集買了一本_第二集也買了一本_價格應為_190()
{
//arrange
List<Book> books = new List<Book>();
Book newbook1 = new Book(1, "哈利波特 1", 100);
Book newbook2 = new Book(2, "哈利波特 2", 100);
books.Add(newbook1);
books.Add(newbook2);
//act
double totalPrice = PotterShoppingCart.OrderBook(books);
//assert
Assert.AreEqual(190, totalPrice);
}
public void 第一集買了一本_其他都沒買_價格應為_100元()
{
//arrange
List<Book> books = new List<Book>();
Book newbook = new Book(1, "哈利波特 1", 100);
books.Add(newbook);
//act
double totalPrice = PotterShoppingCart.OrderBook(books);
//assert
Assert.AreEqual(100, totalPrice);
}
