public abstract class MirAPIUnitTestCommon

    {

        public abstract string GetBaseAddress();

        /// <summary>

        /// CRUD

        /// </summary>

        /// <typeparam name="TResult"></typeparam>

        /// <param name="api"></param>

        /// <returns></returns>

        protected TResult InvokeRequest<TResult, TArguemnt>(string api, HttpMethod httpMethod, TArguemnt arg)

        {

            using (var invoker = CreateMessageInvoker())

            {

                using (var cts = new CancellationTokenSource())

                {

                    var request = new HttpRequestMessage(httpMethod, api);if (null != arg)

                    {

                        request.Content = new ObjectContent<TArguemnt>(arg, new JsonMediaTypeFormatter());

                    }

                    HttpClient httpClient = new HttpClient();

                    using (HttpResponseMessage response = httpClient.SendAsync(request, cts.Token).Result)

                    {

                        string result = response.Content.ReadAsStringAsync().Result;

                        return JsonConvert.DeserializeObject<TResult>(result);

                    }

                }

            }

        }

        private HttpMessageInvoker CreateMessageInvoker()

        {

            var config = new HttpConfiguration();

            WebApiConfig.Register(config);

            var server = new HttpServer(config);

            var messageInvoker = new HttpMessageInvoker(server);

            return messageInvoker;

        }

    }