public void AddNoteTest()
 {
     var item = new Note
     {
         UserId = "customer",
         Description = "Test"
     };
     using (var server = new HttpServer(new[]{
         new RequestHandler
         {
             EstimatedMethod = "POST",
             EstimatedPathAndQuery = string.Format("/v1.0/accounts/{0}/orders/1/notes", Helper.AccountId),
             EstimatedContent = Helper.ToXmlString(item),
             HeadersToSend = new Dictionary<string, string> {
                 {"Location", string.Format("/v1.0/accounts/{0}/portins/1/notes/11299", Helper.AccountId)} 
             }
         },
         new RequestHandler
         {
             EstimatedMethod = "GET",
             EstimatedPathAndQuery = string.Format("/v1.0/accounts/{0}/orders/1/notes", Helper.AccountId),
             ContentToSend = new StringContent(TestXmlStrings.NotesResponse, Encoding.UTF8, "application/xml")
         }
     }))
     {
         var client = Helper.CreateClient();
         var order = new Order { Id = "1" };
         order.SetClient(client);
         var r = order.AddNote(item).Result;
         if (server.Error != null) throw server.Error;
         Assert.AreEqual("11299", r.Id);
         Assert.AreEqual("customer", r.UserId);
         Assert.AreEqual("Test", r.Description);
     }
 }