* refactor: factor out test packet send method in client stack unit tests

OpenSim/Region/ClientStack/LindenUDP/Tests/BasicCircuitTests.cs

@@ -112,6 +112,23 @@ namespace OpenSim.Region.ClientStack.LindenUDP.Tests
             testLLUDPServer.ReceiveData(null);
         }
         
+        /// <summary>
+        /// Build an object name packet for test purposes
+        /// </summary>
+        /// <param name="objectLocalId"></param>
+        /// <param name="objectName"></param>
+        protected ObjectNamePacket BuildTestObjectNamePacket(uint objectLocalId, string objectName)
+        {
+            ObjectNamePacket onp = new ObjectNamePacket();
+            ObjectNamePacket.ObjectDataBlock odb = new ObjectNamePacket.ObjectDataBlock();
+            odb.LocalID = objectLocalId;
+            odb.Name = Utils.StringToBytes(objectName);
+            onp.ObjectData = new ObjectNamePacket.ObjectDataBlock[] { odb };
+            onp.Header.Zerocoded = false;
+            
+            return onp;            
+        }
+        
         /// <summary>
         /// Test adding a client to the stack
         /// </summary>
@@ -210,18 +227,35 @@ namespace OpenSim.Region.ClientStack.LindenUDP.Tests
             // Check that sending a valid packet to same circuit still succeeds
             Assert.That(scene.ObjectNameCallsReceived, Is.EqualTo(0));
             
-            ObjectNamePacket onp = new ObjectNamePacket();
+            testLLUDPServer.LoadReceive(BuildTestObjectNamePacket(1, "helloooo"), testEp);
-            ObjectNamePacket.ObjectDataBlock odb = new ObjectNamePacket.ObjectDataBlock();
-            odb.LocalID = 1;
-            odb.Name = Utils.StringToBytes("helloooo");
-            onp.ObjectData = new ObjectNamePacket.ObjectDataBlock[] { odb };
-            onp.Header.Zerocoded = false;
-            
-            testLLUDPServer.LoadReceive(onp, testEp);
             testLLUDPServer.ReceiveData(null);
             
             Assert.That(testLLPacketServer.GetTotalPacketsReceived(), Is.EqualTo(1));  
             Assert.That(testLLPacketServer.GetPacketsReceivedFor(PacketType.ObjectName), Is.EqualTo(1));
         }
+        
+        /// <summary>
+        /// Test that the stack continues to work even if some client has caused a 
+        /// SocketException on Socket.BeginReceive()
+        /// </summary>
+        [Test]
+        public void TestExceptionOnBeginReceive()
+        {
+            /*
+            MockScene scene = new MockScene();
+            
+            uint circuitCodeA = 130000;
+            EndPoint epA = new IPEndPoint(IPAddress.Loopback, 1300);
+            uint circuitCodeB = 130001;
+            EndPoint epB = new IPEndPoint(IPAddress.Loopback, 1301);
+            
+            TestLLUDPServer testLLUDPServer;
+            TestLLPacketServer testLLPacketServer;
+            AgentCircuitManager acm;
+            SetupStack(scene, out testLLUDPServer, out testLLPacketServer, out acm);            
+            AddClient(circuitCodeA, epA, testLLUDPServer, acm);
+            AddClient(circuitCodeB, epB, testLLUDPServer, acm);
+            */
+        }
     }
 }

OpenSim/Region/ClientStack/LindenUDP/Tests/TestLLUDPServer.cs

@@ -48,7 +48,12 @@ namespace OpenSim.Region.ClientStack.LindenUDP.Tests
         
         protected override void BeginReceive()
         {
-            // Do nothing
+            if (m_chunksToLoad.Count > 0 && m_chunksToLoad.Peek().BeginReceiveException)
+            {
+                ChunkSenderTuple tuple = m_chunksToLoad.Dequeue();
+                reusedEpSender = tuple.Sender;
+                throw new SocketException();
+            }
         }
         
         protected override bool EndReceive(out int numBytes, IAsyncResult result, ref EndPoint epSender)
@@ -71,6 +76,17 @@ namespace OpenSim.Region.ClientStack.LindenUDP.Tests
             // Don't do anything just yet
         }
         
+        /// <summary>
+        /// Signal that this chunk should throw an exception on Socket.BeginReceive()
+        /// </summary>
+        /// <param name="epSender"></param>
+        public void LoadReceiveWithBeginException(EndPoint epSender)
+        {
+            ChunkSenderTuple tuple = new ChunkSenderTuple(epSender);
+            tuple.BeginReceiveException = true;
+            m_chunksToLoad.Enqueue(tuple);
+        }
+        
         /// <summary>
         /// Load some data to be received by the LLUDPServer on the next receive call
         /// </summary>
@@ -121,11 +137,17 @@ namespace OpenSim.Region.ClientStack.LindenUDP.Tests
     {        
         public byte[] Data;
         public EndPoint Sender;
+        public bool BeginReceiveException;
         
         public ChunkSenderTuple(byte[] data, EndPoint sender)
         {
             Data = data;
             Sender = sender;
         }
+        
+        public ChunkSenderTuple(EndPoint sender)
+        {
+            Sender = sender;
+        }
     }
 }