public void CalcTotPrice()
{
ShoppingCart SCart = new ShoppingCart();
/*
* ////1 copy, 1 book
* SCart.AddToShoppingCart(Utils.GetFirstBook(), 1);
* Assert.AreEqual<double>(8, Calculator.CalcTotalPrice(SCart));
* SCart.Items.Clear();
*
* ////2 copies, 1book
* SCart.AddToShoppingCart(Utils.GetFirstBook(), 2);
* Assert.AreEqual<double>(16, Calculator.CalcTotalPrice(SCart));
* SCart.Items.Clear();
*
* ////5 copies, 1book
* SCart.AddToShoppingCart(Utils.GetFirstBook(), 5);
* Assert.AreEqual<double>(40, Calculator.CalcTotalPrice(SCart));
* SCart.Items.Clear();
*/
////2 different books
SCart.AddToShoppingCart(Utils.GetFirstBook(), 1);
SCart.AddToShoppingCart(Utils.GetSecondBook(), 1);
Assert.AreEqual <double>(15.2, Calculator.CalcTotalPrice(SCart));
SCart.Items.Clear();
//3 different books
SCart.AddToShoppingCart(Utils.GetFirstBook(), 1);
SCart.AddToShoppingCart(Utils.GetSecondBook(), 1);
SCart.AddToShoppingCart(Utils.GetThirdBook(), 1);
Assert.AreEqual <double>(21.6, Calculator.CalcTotalPrice(SCart));
SCart.Items.Clear();
//4 different books
SCart.AddToShoppingCart(Utils.GetFirstBook(), 1);
SCart.AddToShoppingCart(Utils.GetSecondBook(), 1);
SCart.AddToShoppingCart(Utils.GetThirdBook(), 1);
SCart.AddToShoppingCart(Utils.GetFourthBook(), 1);
Assert.AreEqual <double>(25.6, Calculator.CalcTotalPrice(SCart));
SCart.Items.Clear();
//5 different books
SCart.AddToShoppingCart(Utils.GetFirstBook(), 1);
SCart.AddToShoppingCart(Utils.GetSecondBook(), 1);
SCart.AddToShoppingCart(Utils.GetThirdBook(), 1);
SCart.AddToShoppingCart(Utils.GetFourthBook(), 1);
SCart.AddToShoppingCart(Utils.GetFifthBook(), 1);
Assert.AreEqual <double>(30, Calculator.CalcTotalPrice(SCart));
SCart.Items.Clear();
//5 different books with 2 copies
SCart.AddToShoppingCart(Utils.GetFirstBook(), 2);
SCart.AddToShoppingCart(Utils.GetSecondBook(), 2);
SCart.AddToShoppingCart(Utils.GetThirdBook(), 2);
SCart.AddToShoppingCart(Utils.GetFourthBook(), 2);
SCart.AddToShoppingCart(Utils.GetFifthBook(), 2);
Assert.AreEqual <double>(60, Calculator.CalcTotalPrice(SCart));
SCart.Items.Clear();
//6 different books
SCart.AddToShoppingCart(Utils.GetFirstBook(), 2);
SCart.AddToShoppingCart(Utils.GetSecondBook(), 1);
SCart.AddToShoppingCart(Utils.GetThirdBook(), 1);
SCart.AddToShoppingCart(Utils.GetFourthBook(), 1);
SCart.AddToShoppingCart(Utils.GetFifthBook(), 1);
Assert.AreEqual <double>(38, Calculator.CalcTotalPrice(SCart));
SCart.Items.Clear();
//7 different books
SCart.AddToShoppingCart(Utils.GetFirstBook(), 2);
SCart.AddToShoppingCart(Utils.GetSecondBook(), 2);
SCart.AddToShoppingCart(Utils.GetThirdBook(), 1);
SCart.AddToShoppingCart(Utils.GetFourthBook(), 1);
SCart.AddToShoppingCart(Utils.GetFifthBook(), 1);
Assert.AreEqual <double>(45.2, Calculator.CalcTotalPrice(SCart));
SCart.Items.Clear();
//8 different books
SCart.AddToShoppingCart(Utils.GetFirstBook(), 2);
SCart.AddToShoppingCart(Utils.GetSecondBook(), 2);
SCart.AddToShoppingCart(Utils.GetThirdBook(), 2);
SCart.AddToShoppingCart(Utils.GetFourthBook(), 1);
SCart.AddToShoppingCart(Utils.GetFifthBook(), 1);
Assert.AreEqual <double>(51.2, Calculator.CalcTotalPrice(SCart));
SCart.Items.Clear();
//80 different books
SCart.AddToShoppingCart(Utils.GetFirstBook(), 20);
SCart.AddToShoppingCart(Utils.GetSecondBook(), 20);
SCart.AddToShoppingCart(Utils.GetThirdBook(), 20);
SCart.AddToShoppingCart(Utils.GetFourthBook(), 10);
SCart.AddToShoppingCart(Utils.GetFifthBook(), 10);
Assert.AreEqual <double>(512, Calculator.CalcTotalPrice(SCart));
SCart.Items.Clear();
}