public void InitalizeCatalogOfItems()
{
checkOutSystem = new CheckOutSystem();
checkOutSystem.AddItem("Soup", 1.99);
checkOutSystem.AddItem("Ice Cream", 4.50);
checkOutSystem.AddItem("Candy", 0.75);
checkOutSystem.AddItem("Apples", 1.25);
checkOutSystem.AddItem("Pears", 1.50);
checkOutSystem.AddItem("Oranges", 1.00);
}
//Do not allow adding item already in system
public void AddItemThatHasAlreadyBeenAdded()
{
checkOutSystem.AddItem("Soup", 2.50);
}