public void TestMethod_ProductDetail()
        {
            VendingMachineProcess vendingMachingProcess = new VendingMachineProcess();
            int          productSNo = 1;
            ProductModel result     = vendingMachingProcess.FindAndReturnProduct(productSNo);

            Assert.AreEqual(result.Name, "Cola");
        }
        public void TestMethod_ProductDetail_Negative()
        {
            VendingMachineProcess vendingMachingProcess = new VendingMachineProcess();
            int          productSNo  = 5;
            ProductModel result      = vendingMachingProcess.FindAndReturnProduct(productSNo);
            string       finalResult = null;

            if (result != null)
            {
                finalResult = result.Name;
            }
            Assert.AreEqual(finalResult, null);
        }