public void PricingEngine_Add_Specific_PricingRules()
        {
            IPricingEngine pe = new PricingEngine();
            pe.AddQuantityPricingRule(new QuantityPricingRule("A", 50));
            pe.AddQuantityPricingRule(new QuantityPricingRule("A", 2, 80));
            pe.AddQuantityDiscountPricingRule(new QuantityDiscountPricingRule("A", 3, 2));

            decimal price = pe.GetItemTotalPrice("A", 3);
            decimal expectedPrice = 80;

            Assert.AreEqual(expectedPrice, price);
        }
Exemplo n.º 2
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        public void If_QuantityDiscountPricingRule_A_3_2_And_Scan_3A_Then_Price_is_90()
        {
            IPricingEngine pe = new PricingEngine();
            pe.AddQuantityDiscountPricingRule(new QuantityDiscountPricingRule("A", 3, 2));
            pe.AddQuantityPricingRule(new QuantityPricingRule("A", 3, 130));
            pe.AddQuantityPricingRule(new QuantityPricingRule("A", 2, 90));
            pe.AddQuantityPricingRule(new QuantityPricingRule("A", 1, 50));

            ICheckout co = new Checkout(pe);

            for (int i = 0; i < 3; i++)
            {
                co.Scan("A");
            }

            decimal price = co.GetTotalPrice();
            decimal expectedPrice = 90;

            Assert.AreEqual(expectedPrice, price);
        }