[TestMethod()]//INFO: there is possibility that there is no change in past two days for customer or vendor, then CDC will not return any entities. FIX: make an operation for customer and vendor before calling CDC
        public void CDCTest()
        {
            Customer addedCustomer = dataServiceTestCases.AddEntity(DataServiceTestHelper.CreateCustomer()) as Customer;
            if (addedCustomer == null || addedCustomer.Id == null)
            {
                Assert.Inconclusive("Unable to add customer to verify CDC Test");
            }

            Vendor addedVendor = dataServiceTestCases.AddEntity(DataServiceTestHelper.CreateVendor()) as Vendor;
            if (addedVendor == null || addedVendor.Id == null)
            {
                Assert.Inconclusive("Unable to add vendor to verify CDC Test");
            }

            List<IEntity> entityList = new List<IEntity>() { new Customer(), new Vendor() };

            IntuitCDCResponse cdcResponse = dataServiceTestCases.CDCEntity(entityList, System.DateTime.Today.AddDays(-2));
            try
            {
                List<Customer> customerList = cdcResponse.getEntity("Customer").Cast<Customer>().ToList();
                Assert.IsNotNull(customerList);

                List<Vendor> vendorList = cdcResponse.getEntity("Vendor").Cast<Vendor>().ToList();
                Assert.IsNotNull(customerList);

            }
            catch (System.Exception ex)
            {
                Assert.Fail(ex.ToString());
            }
        }
        internal static List <T> CDC <T>(ServiceContext context, T entity, DateTime changedSince) where T : IEntity
        {
            //Initializing the Dataservice object with ServiceContext
            DataService service = new DataService(context);

            List <IEntity> entityList = new List <IEntity>();

            entityList.Add(entity);

            IntuitCDCResponse response = service.CDC(entityList, changedSince);

            if (response.entities.Count == 0)
            {
                return(null);
            }
            //Retrieving the entity List
            List <T> found = response.getEntity(entity.GetType().Name).Cast <T>().ToList();

            return(found);
        }