Add in the ability to abort connections

FluentSim/FluentConfigurator.cs

@@ -20,6 +20,7 @@ public class FluentConfigurator : RouteConfigurer
         private List<ReceivedRequest> ReceivedRequests = new List<ReceivedRequest>();
         public byte[] BinaryOutput = null;
         public Dictionary<string, string> QueryParameters = new Dictionary<string, string>();
+        public bool ShouldImmediatelyDisconnect = false;
 
         public FluentConfigurator(string path, HttpVerb get, JsonSerializerSettings jsonConverter)
         {
@@ -160,6 +161,11 @@ public IRouteHistory History()
             return new RouteHistory(ReceivedRequests.AsReadOnly());
         }
 
+        public void ImmediatelyAborts()
+        {
+            ShouldImmediatelyDisconnect = true;
+        }
+
         private class RouteHistory : IRouteHistory
         {
             public RouteHistory(IReadOnlyList<ReceivedRequest> requests)

FluentSim/FluentSimulator.cs

@@ -87,6 +87,12 @@ private void TryToProcessRequest(IAsyncResult ar)
                 return;
             }
 
+            if (matchingRoute.ShouldImmediatelyDisconnect)
+            {
+                response.Abort();
+                return;
+            }
+
             matchingRoute.AddReceivedRequest(receivedRequest);
             matchingRoute.WaitUntilReadyToRespond();
 

FluentSim/RouteConfigurer.cs

@@ -18,5 +18,6 @@ public interface RouteConfigurer
         RouteConfigurer Resume();
         RouteConfigurer WithCookie(Cookie cookie);
         IRouteHistory History();
+        void ImmediatelyAborts();
     }
 }

FluentSimTests/FluentSimTests.cs

@@ -49,10 +49,13 @@ public void CanMakeGetRequest()
       resp.StatusCode.ShouldEqual(HttpStatusCode.OK);
     }
 
-    private static IRestResponse MakeGetRequest(string path)
+    private static IRestResponse MakeGetRequest(string path, int timeout=50000)
     {
       var request = new RestRequest(path, Method.GET);
-      var client = new RestClient(BaseAddress);
+      var client = new RestClient(BaseAddress)
+      {
+        Timeout = timeout
+      };
       var resp = client.Execute(request);
       return resp;
     }
@@ -197,6 +200,15 @@ public void CanRespondWithCookies()
       cookie.Value.ShouldEqual("VALTEST");
     }
 
+    [Test]
+    public void CanImmediatelyAbortConnection()
+    {
+
+      Sim.Get("/test").ImmediatelyAborts();
+      var resp = MakeGetRequest("/test", 100);
+      resp.StatusCode.ShouldEqual((HttpStatusCode)0);
+    }
+
     [Test]
     public void CanReturnSerialisedObjects()
     {

README.md

@@ -133,6 +133,12 @@ You can test how your code handles slow server replies.
     simulator.Get("/my/route").Responds("Final output").Delay(TimeSpan.FromSeconds(30));
 ```
 
+## Aborted connections
+You can tell the API to abort the connection (interally uses `HttpListenerResponse.Abort()`) to simulate a network disconnection. Note: if using restsharp this will cause a response timeout, so if you have a long timeout set it may appear to hang. The RestSharp status code will be `0`.
+```c#
+simulator.Post("/authenticate").ImmediatelyAborts();
+```
+
 ## Indefinitely suspend responses at runtime
 You can check that your webpage correctly displays loading messages or spinners.