public void AddTestItem_FourPastryItems_int()
        {
            Pastry PastryItem = new Pastry(4);
            int    result     = 7;

            Assert.AreEqual(result, PastryItem.AddPastryItem());
        }
        public void AddTestItem_ForOneItem_int()
        {
            Pastry PastryItem = new Pastry(1);
            int    result     = 2;

            Assert.AreEqual(result, PastryItem.AddPastryItem());
        }
        public void AddTestItem_DiscountPastryItem_int()
        {
            Pastry PastryItem = new Pastry(3);
            int    result     = 5;

            Assert.AreEqual(result, PastryItem.AddPastryItem());
        }