public void getSalePriceWithDiscount()
{
int percentage = 50;
List <int> lst = new List <int>();
lst.Add(milkInStore.getProductInStoreId());
discountsArchive.addNewDiscounts(1, lst, null, percentage, "20/6/2020", "");
double price = 200;
int amount = 5;
sale = new Sale(1, milkInStore.getProductInStoreId(), 1, 50, "20/5/2020");
double check = sale.getPriceAfterDiscount(amount);
double res = (price * amount) - ((((Double)(price * amount * percentage)) / 100));
Assert.AreEqual(res, check);
}
