public void Test_Buy_Book1x1()
{
var shoppingCart = new ShoppingCart();
shoppingCart.Items.Add(new ShoppingItem() { BookType = 1, Num = 1, UnitPrice = 100 });
shoppingCart.CalTotalPrice();
Assert.AreEqual(shoppingCart.TotalPrice, 100);
}
public void Test_Buy_Book1x1_Book2x1_Book3x1_Book4x1_Book5x1()
{
var shoppingCart = new ShoppingCart();
shoppingCart.Items.Add(new ShoppingItem() { BookType = 1, Num = 1, UnitPrice = 100 });
shoppingCart.Items.Add(new ShoppingItem() { BookType = 2, Num = 1, UnitPrice = 100 });
shoppingCart.Items.Add(new ShoppingItem() { BookType = 3, Num = 1, UnitPrice = 100 });
shoppingCart.Items.Add(new ShoppingItem() { BookType = 4, Num = 1, UnitPrice = 100 });
shoppingCart.Items.Add(new ShoppingItem() { BookType = 5, Num = 1, UnitPrice = 100 });
shoppingCart.CalTotalPrice();
Assert.AreEqual(shoppingCart.TotalPrice, 375);
}