public void GetItemsByProduct()
        {
            GetReady("api/{controller}/product/{id}");
            var response = controller.GetByProduct(1).ExecuteAsync(CancellationToken.None).Result;
            List <ItemModel> dataSet;
            var content = response.TryGetContentValue <List <ItemModel> >(out dataSet);

            Assert.AreNotEqual(0, dataSet.Count);
        }