Merge branch 'master' into careminster-presence-refactor

5 files changed, 484 insertions, 256 deletions

diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index f38a6fc..d4bfd46 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -131,7 +131,16 @@ namespace OpenSim.Region.Framework.Scenes
         protected ICapabilitiesModule m_capsModule;
         // Central Update Loop
         protected int m_fps = 10;
-        protected uint m_frame;
+
+        /// <summary>
+        /// Current scene frame number
+        /// </summary>
+        public uint Frame
+        {
+            get;
+            protected set;
+        }
+
         protected float m_timespan = 0.089f;
         protected DateTime m_lastupdate = DateTime.UtcNow;
 
@@ -1212,6 +1221,9 @@ namespace OpenSim.Region.Framework.Scenes
             try
             {
                 Update();
+
+                m_lastUpdate = Util.EnvironmentTickCount();
+                m_firstHeartbeat = false;
             }
             catch (ThreadAbortException)
             {
@@ -1225,190 +1237,180 @@ namespace OpenSim.Region.Framework.Scenes
             Watchdog.RemoveThread();
         }
 
-        /// <summary>
-        /// Performs per-frame updates on the scene, this should be the central scene loop
-        /// </summary>
         public override void Update()
-        {
-            float physicsFPS;
-            int maintc;
+        {        
+            TimeSpan SinceLastFrame = DateTime.UtcNow - m_lastupdate;
+            float physicsFPS = 0f;
+
+            int maintc = Util.EnvironmentTickCount();
+            int tmpFrameMS = maintc;
+            tempOnRezMS = eventMS = backupMS = terrainMS = landMS = 0;
+
+            // Increment the frame counter
+            ++Frame;
 
-            while (!shuttingdown)
+            try
             {
-                TimeSpan SinceLastFrame = DateTime.UtcNow - m_lastupdate;
-                physicsFPS = 0f;
+                // Check if any objects have reached their targets
+                CheckAtTargets();
 
-                maintc = Util.EnvironmentTickCount();
-                int tmpFrameMS = maintc;
-                tempOnRezMS = eventMS = backupMS = terrainMS = landMS = 0;
+                // Update SceneObjectGroups that have scheduled themselves for updates
+                // Objects queue their updates onto all scene presences
+                if (Frame % m_update_objects == 0)
+                    m_sceneGraph.UpdateObjectGroups();
 
-                // Increment the frame counter
-                ++m_frame;
+                // Run through all ScenePresences looking for updates
+                // Presence updates and queued object updates for each presence are sent to clients
+                if (Frame % m_update_presences == 0)
+                    m_sceneGraph.UpdatePresences();
 
-                try
+                // Coarse locations relate to positions of green dots on the mini-map (on a SecondLife client)
+                if (Frame % m_update_coarse_locations == 0)
                 {
-                    // Check if any objects have reached their targets
-                    CheckAtTargets();
+                    List<Vector3> coarseLocations;
+                    List<UUID> avatarUUIDs;
+                    SceneGraph.GetCoarseLocations(out coarseLocations, out avatarUUIDs, 60);
+                    // Send coarse locations to clients 
+                    ForEachScenePresence(delegate(ScenePresence presence)
+                    {
+                        presence.SendCoarseLocations(coarseLocations, avatarUUIDs);
+                    });
+                }
 
-                    // Update SceneObjectGroups that have scheduled themselves for updates
-                    // Objects queue their updates onto all scene presences
-                    if (m_frame % m_update_objects == 0)
-                        m_sceneGraph.UpdateObjectGroups();
+                int tmpPhysicsMS2 = Util.EnvironmentTickCount();
+                if ((Frame % m_update_physics == 0) && m_physics_enabled)
+                    m_sceneGraph.UpdatePreparePhysics();
+                physicsMS2 = Util.EnvironmentTickCountSubtract(tmpPhysicsMS2);
 
-                    // Run through all ScenePresences looking for updates
-                    // Presence updates and queued object updates for each presence are sent to clients
-                    if (m_frame % m_update_presences == 0)
-                        m_sceneGraph.UpdatePresences();
+                // Apply any pending avatar force input to the avatar's velocity
+                if (Frame % m_update_entitymovement == 0)
+                    m_sceneGraph.UpdateScenePresenceMovement();
 
-                    // Coarse locations relate to positions of green dots on the mini-map (on a SecondLife client)
-                    if (m_frame % m_update_coarse_locations == 0)
-                    {
-                        List<Vector3> coarseLocations;
-                        List<UUID> avatarUUIDs;
-                        SceneGraph.GetCoarseLocations(out coarseLocations, out avatarUUIDs, 60);
-                        // Send coarse locations to clients 
-                        ForEachScenePresence(delegate(ScenePresence presence)
-                        {
-                            presence.SendCoarseLocations(coarseLocations, avatarUUIDs);
-                        });
-                    }
-
-                    int tmpPhysicsMS2 = Util.EnvironmentTickCount();
-                    if ((m_frame % m_update_physics == 0) && m_physics_enabled)
-                        m_sceneGraph.UpdatePreparePhysics();
-                    physicsMS2 = Util.EnvironmentTickCountSubtract(tmpPhysicsMS2);
+                // Perform the main physics update.  This will do the actual work of moving objects and avatars according to their
+                // velocity
+                int tmpPhysicsMS = Util.EnvironmentTickCount();
+                if (Frame % m_update_physics == 0)
+                {
+                    if (m_physics_enabled)
+                        physicsFPS = m_sceneGraph.UpdatePhysics(Math.Max(SinceLastFrame.TotalSeconds, m_timespan));
+                    if (SynchronizeScene != null)
+                        SynchronizeScene(this);
+                }
+                physicsMS = Util.EnvironmentTickCountSubtract(tmpPhysicsMS);
 
-                    // Apply any pending avatar force input to the avatar's velocity
-                    if (m_frame % m_update_entitymovement == 0)
-                        m_sceneGraph.UpdateScenePresenceMovement();
+                // Delete temp-on-rez stuff
+                if (Frame % 1000 == 0 && !m_cleaningTemps)
+                {
+                    int tmpTempOnRezMS = Util.EnvironmentTickCount();
+                    m_cleaningTemps = true;
+                    Util.FireAndForget(delegate { CleanTempObjects(); m_cleaningTemps = false;  });
+                    tempOnRezMS = Util.EnvironmentTickCountSubtract(tmpTempOnRezMS);
+                }
 
-                    // Perform the main physics update.  This will do the actual work of moving objects and avatars according to their
-                    // velocity
-                    int tmpPhysicsMS = Util.EnvironmentTickCount();
-                    if (m_frame % m_update_physics == 0)
+                if (RegionStatus != RegionStatus.SlaveScene)
+                {
+                    if (Frame % m_update_events == 0)
                     {
-                        if (m_physics_enabled)
-                            physicsFPS = m_sceneGraph.UpdatePhysics(Math.Max(SinceLastFrame.TotalSeconds, m_timespan));
-                        if (SynchronizeScene != null)
-                            SynchronizeScene(this);
+                        int evMS = Util.EnvironmentTickCount();
+                        UpdateEvents();
+                        eventMS = Util.EnvironmentTickCountSubtract(evMS); ;
                     }
-                    physicsMS = Util.EnvironmentTickCountSubtract(tmpPhysicsMS);
 
-                    // Delete temp-on-rez stuff
-                    if (m_frame % 1000 == 0 && !m_cleaningTemps)
+                    if (Frame % m_update_backup == 0)
                     {
-                        int tmpTempOnRezMS = Util.EnvironmentTickCount();
-                        m_cleaningTemps = true;
-                        Util.FireAndForget(delegate { CleanTempObjects(); m_cleaningTemps = false;  });
-                        tempOnRezMS = Util.EnvironmentTickCountSubtract(tmpTempOnRezMS);
+                        int backMS = Util.EnvironmentTickCount();
+                        UpdateStorageBackup();
+                        backupMS = Util.EnvironmentTickCountSubtract(backMS);
                     }
 
-                    if (RegionStatus != RegionStatus.SlaveScene)
+                    if (Frame % m_update_terrain == 0)
                     {
-                        if (m_frame % m_update_events == 0)
-                        {
-                            int evMS = Util.EnvironmentTickCount();
-                            UpdateEvents();
-                            eventMS = Util.EnvironmentTickCountSubtract(evMS); ;
-                        }
-
-                        if (m_frame % m_update_backup == 0)
-                        {
-                            int backMS = Util.EnvironmentTickCount();
-                            UpdateStorageBackup();
-                            backupMS = Util.EnvironmentTickCountSubtract(backMS);
-                        }
-
-                        if (m_frame % m_update_terrain == 0)
-                        {
-                            int terMS = Util.EnvironmentTickCount();
-                            UpdateTerrain();
-                            terrainMS = Util.EnvironmentTickCountSubtract(terMS);
-                        }
-
-                        if (m_frame % m_update_land == 0)
-                        {
-                            int ldMS = Util.EnvironmentTickCount();
-                            UpdateLand();
-                            landMS = Util.EnvironmentTickCountSubtract(ldMS);
-                        }
-
-                        frameMS = Util.EnvironmentTickCountSubtract(tmpFrameMS);
-                        otherMS = tempOnRezMS + eventMS + backupMS + terrainMS + landMS;
-                        lastCompletedFrame = Util.EnvironmentTickCount();
-
-                        // if (m_frame%m_update_avatars == 0)
-                        //   UpdateInWorldTime();
-                        StatsReporter.AddPhysicsFPS(physicsFPS);
-                        StatsReporter.AddTimeDilation(TimeDilation);
-                        StatsReporter.AddFPS(1);
-                        StatsReporter.SetRootAgents(m_sceneGraph.GetRootAgentCount());
-                        StatsReporter.SetChildAgents(m_sceneGraph.GetChildAgentCount());
-                        StatsReporter.SetObjects(m_sceneGraph.GetTotalObjectsCount());
-                        StatsReporter.SetActiveObjects(m_sceneGraph.GetActiveObjectsCount());
-                        StatsReporter.addFrameMS(frameMS);
-                        StatsReporter.addPhysicsMS(physicsMS + physicsMS2);
-                        StatsReporter.addOtherMS(otherMS);
-                        StatsReporter.SetActiveScripts(m_sceneGraph.GetActiveScriptsCount());
-                        StatsReporter.addScriptLines(m_sceneGraph.GetScriptLPS());
+                        int terMS = Util.EnvironmentTickCount();
+                        UpdateTerrain();
+                        terrainMS = Util.EnvironmentTickCountSubtract(terMS);
                     }
 
-                    if (LoginsDisabled && m_frame == 20)
+                    if (Frame % m_update_land == 0)
                     {
-                        // In 99.9% of cases it is a bad idea to manually force garbage collection. However,
-                        // this is a rare case where we know we have just went through a long cycle of heap
-                        // allocations, and there is no more work to be done until someone logs in
-                        GC.Collect();
+                        int ldMS = Util.EnvironmentTickCount();
+                        UpdateLand();
+                        landMS = Util.EnvironmentTickCountSubtract(ldMS);
+                    }
 
-                        IConfig startupConfig = m_config.Configs["Startup"];
-                        if (startupConfig == null || !startupConfig.GetBoolean("StartDisabled", false))
-                        {
-                            m_log.DebugFormat("[REGION]: Enabling logins for {0}", RegionInfo.RegionName);
-                            LoginsDisabled = false;
-                            m_sceneGridService.InformNeighborsThatRegionisUp(RequestModuleInterface<INeighbourService>(), RegionInfo);
-                        }
+                    frameMS = Util.EnvironmentTickCountSubtract(tmpFrameMS);
+                    otherMS = tempOnRezMS + eventMS + backupMS + terrainMS + landMS;
+                    lastCompletedFrame = Util.EnvironmentTickCount();
+
+                    // if (Frame%m_update_avatars == 0)
+                    //   UpdateInWorldTime();
+                    StatsReporter.AddPhysicsFPS(physicsFPS);
+                    StatsReporter.AddTimeDilation(TimeDilation);
+                    StatsReporter.AddFPS(1);
+                    StatsReporter.SetRootAgents(m_sceneGraph.GetRootAgentCount());
+                    StatsReporter.SetChildAgents(m_sceneGraph.GetChildAgentCount());
+                    StatsReporter.SetObjects(m_sceneGraph.GetTotalObjectsCount());
+                    StatsReporter.SetActiveObjects(m_sceneGraph.GetActiveObjectsCount());
+                    StatsReporter.addFrameMS(frameMS);
+                    StatsReporter.addPhysicsMS(physicsMS + physicsMS2);
+                    StatsReporter.addOtherMS(otherMS);
+                    StatsReporter.SetActiveScripts(m_sceneGraph.GetActiveScriptsCount());
+                    StatsReporter.addScriptLines(m_sceneGraph.GetScriptLPS());
+                }
+
+                if (LoginsDisabled && Frame == 20)
+                {
+                    // In 99.9% of cases it is a bad idea to manually force garbage collection. However,
+                    // this is a rare case where we know we have just went through a long cycle of heap
+                    // allocations, and there is no more work to be done until someone logs in
+                    GC.Collect();
+
+                    IConfig startupConfig = m_config.Configs["Startup"];
+                    if (startupConfig == null || !startupConfig.GetBoolean("StartDisabled", false))
+                    {
+                        m_log.DebugFormat("[REGION]: Enabling logins for {0}", RegionInfo.RegionName);
+                        LoginsDisabled = false;
+                        m_sceneGridService.InformNeighborsThatRegionisUp(RequestModuleInterface<INeighbourService>(), RegionInfo);
                     }
                 }
-                catch (NotImplementedException)
-                {
-                    throw;
-                }
-                catch (AccessViolationException e)
-                {
-                    m_log.Error("[REGION]: Failed with exception " + e.ToString() + " On Region: " + RegionInfo.RegionName);
-                }
-                //catch (NullReferenceException e)
-                //{
-                //   m_log.Error("[REGION]: Failed with exception " + e.ToString() + " On Region: " + RegionInfo.RegionName);
-                //}
-                catch (InvalidOperationException e)
-                {
-                    m_log.Error("[REGION]: Failed with exception " + e.ToString() + " On Region: " + RegionInfo.RegionName);
-                }
-                catch (Exception e)
-                {
-                    m_log.Error("[REGION]: Failed with exception " + e.ToString() + " On Region: " + RegionInfo.RegionName);
-                }
-                finally
-                {
-                    m_lastupdate = DateTime.UtcNow;
-                }
+            }
+            catch (NotImplementedException)
+            {
+                throw;
+            }
+            catch (AccessViolationException e)
+            {
+                m_log.Error("[REGION]: Failed with exception " + e.ToString() + " On Region: " + RegionInfo.RegionName);
+            }
+            //catch (NullReferenceException e)
+            //{
+            //   m_log.Error("[REGION]: Failed with exception " + e.ToString() + " On Region: " + RegionInfo.RegionName);
+            //}
+            catch (InvalidOperationException e)
+            {
+                m_log.Error("[REGION]: Failed with exception " + e.ToString() + " On Region: " + RegionInfo.RegionName);
+            }
+            catch (Exception e)
+            {
+                m_log.Error("[REGION]: Failed with exception " + e.ToString() + " On Region: " + RegionInfo.RegionName);
+            }
+            finally
+            {
+                m_lastupdate = DateTime.UtcNow;
+            }
 
-                maintc = Util.EnvironmentTickCountSubtract(maintc);
-                maintc = (int)(m_timespan * 1000) - maintc;
+            maintc = Util.EnvironmentTickCountSubtract(maintc);
+            maintc = (int)(m_timespan * 1000) - maintc;
 
-                if (maintc > 0)
-                    Thread.Sleep(maintc);
 
-                // Tell the watchdog that this thread is still alive
-                Watchdog.UpdateThread();
+            m_lastUpdate = Util.EnvironmentTickCount();
+            m_firstHeartbeat = false;
 
-                m_lastUpdate = Util.EnvironmentTickCount();
-                m_firstHeartbeat = false;
-            }
-        }
+            if (maintc > 0)
+                Thread.Sleep(maintc);
 
-        
+            // Tell the watchdog that this thread is still alive
+            Watchdog.UpdateThread();
+        }        
 
         public void AddGroupTarget(SceneObjectGroup grp)
         {
@@ -3127,7 +3129,9 @@ namespace OpenSim.Region.Framework.Scenes
                         (childagentYN ? "child" : "root"), agentID, RegionInfo.RegionName);
 
                     m_sceneGraph.removeUserCount(!childagentYN);
-                    CapsModule.RemoveCapsHandler(agentID);
+                    
+                    if (CapsModule != null)
+                        CapsModule.RemoveCapsHandler(agentID);
 
                     // REFACTORING PROBLEM -- well not really a problem, but just to point out that whatever
                     // this method is doing is HORRIBLE!!!
@@ -3405,8 +3409,11 @@ namespace OpenSim.Region.Framework.Scenes
                     RegionInfo.RegionName, (agent.child ? "child" : "root"), agent.firstname, agent.lastname,
                     agent.AgentID, agent.circuitcode);
 
-                CapsModule.NewUserConnection(agent);
-                CapsModule.AddCapsHandler(agent.AgentID);
+                if (CapsModule != null)
+                {
+                    CapsModule.NewUserConnection(agent);
+                    CapsModule.AddCapsHandler(agent.AgentID);
+                }
             }
             else
             {
@@ -3421,7 +3428,9 @@ namespace OpenSim.Region.Framework.Scenes
                         agent.AgentID, RegionInfo.RegionName);
 
                     sp.AdjustKnownSeeds();
-                    CapsModule.NewUserConnection(agent);
+                    
+                    if (CapsModule != null)
+                        CapsModule.NewUserConnection(agent);
                 }
             }
 
@@ -3933,15 +3942,15 @@ namespace OpenSim.Region.Framework.Scenes
         public void RequestTeleportLocation(IClientAPI remoteClient, string regionName, Vector3 position,
                                             Vector3 lookat, uint teleportFlags)
         {
-            GridRegion regionInfo = GridService.GetRegionByName(UUID.Zero, regionName);
-            if (regionInfo == null)
+            List<GridRegion> regions = GridService.GetRegionsByName(RegionInfo.ScopeID, regionName, 1);
+            if (regions == null || regions.Count == 0)
             {
                 // can't find the region: Tell viewer and abort
                 remoteClient.SendTeleportFailed("The region '" + regionName + "' could not be found.");
                 return;
             }
 
-            RequestTeleportLocation(remoteClient, regionInfo.RegionHandle, position, lookat, teleportFlags);
+            RequestTeleportLocation(remoteClient, regions[0].RegionHandle, position, lookat, teleportFlags);
         }
 
         /// <summary>
diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index af24ed3..fd03e93 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -1310,7 +1310,9 @@ namespace OpenSim.Region.Framework.Scenes
                 if (m_agentTransfer != null)
                     m_agentTransfer.EnableChildAgents(this);
                 else
-                    m_log.DebugFormat("[SCENE PRESENCE]: Unable to create child agents in neighbours, because AgentTransferModule is not active");
+                    m_log.DebugFormat(
+                        "[SCENE PRESENCE]: Unable to create child agents in neighbours, because AgentTransferModule is not active for region {0}", 
+                        m_scene.RegionInfo.RegionName);
 
                 IFriendsModule friendsModule = m_scene.RequestModuleInterface<IFriendsModule>();
                 if (friendsModule != null)
@@ -3028,8 +3030,11 @@ namespace OpenSim.Region.Framework.Scenes
         #region Border Crossing Methods
 
         /// <summary>
-        /// Checks to see if the avatar is in range of a border and calls CrossToNewRegion
+        /// Starts the process of moving an avatar into another region if they are crossing the border.
         /// </summary>
+        /// <remarks>
+        /// Also removes the avatar from the physical scene if transit has started.
+        /// </remarks>
         protected void CheckForBorderCrossing()
         {
             if (IsChildAgent)
@@ -3097,7 +3102,6 @@ namespace OpenSim.Region.Framework.Scenes
                     neighbor = HaveNeighbor(Cardinals.N, ref fix);
                 }
 
-
                 // Makes sure avatar does not end up outside region
                 if (neighbor <= 0)
                 {
@@ -3152,6 +3156,13 @@ namespace OpenSim.Region.Framework.Scenes
             }
             else
             {
+                // We must remove the agent from the physical scene if it has been placed in transit.  If we don't,
+                // then this method continues to be called from ScenePresence.Update() until the handover of the client between
+                // regions is completed.  Since this handover can take more than 1000ms (due to the 1000ms
+                // event queue polling response from the server), this results in the avatar pausing on the border
+                // for the handover period.
+                RemoveFromPhysicalScene();
+                
                 // This constant has been inferred from experimentation
                 // I'm not sure what this value should be, so I tried a few values.
                 timeStep = 0.04f;
@@ -3163,6 +3174,15 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
+        /// <summary>
+        /// Checks whether this region has a neighbour in the given direction.
+        /// </summary>
+        /// <param name="car"></param>
+        /// <param name="fix"></param>
+        /// <returns>
+        /// An integer which represents a compass point.  N == 1, going clockwise until we reach NW == 8.
+        /// Returns a positive integer if there is a region in that direction, a negative integer if not.
+        /// </returns>
         protected int HaveNeighbor(Cardinals car, ref int[] fix)
         {
             uint neighbourx = m_regionInfo.RegionLocX;
diff --git a/OpenSim/Region/Framework/Scenes/Tests/AttachmentTests.cs b/OpenSim/Region/Framework/Scenes/Tests/AttachmentTests.cs
new file mode 100644
index 0000000..af44640
--- /dev/null
+++ b/OpenSim/Region/Framework/Scenes/Tests/AttachmentTests.cs
@@ -0,0 +1,174 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+using System.Text;
+using System.Threading;
+using System.Timers;
+using Timer=System.Timers.Timer;
+using Nini.Config;
+using NUnit.Framework;
+using NUnit.Framework.SyntaxHelpers;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Framework.Communications;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.CoreModules.World.Serialiser;
+using OpenSim.Region.CoreModules.ServiceConnectorsOut.Simulation;
+using OpenSim.Tests.Common;
+using OpenSim.Tests.Common.Mock;
+using OpenSim.Tests.Common.Setup;
+
+namespace OpenSim.Region.Framework.Scenes.Tests
+{
+    /// <summary>
+    /// Attachment tests
+    /// </summary>
+    [TestFixture]
+    public class AttachmentTests
+    {
+        public Scene scene, scene2;
+        public UUID agent1;
+        public static Random random;
+        public ulong region1, region2;
+        public AgentCircuitData acd1;
+        public SceneObjectGroup sog1, sog2, sog3;
+
+        [TestFixtureSetUp]
+        public void Init()
+        {
+            TestHelper.InMethod();
+            
+            scene = SceneSetupHelpers.SetupScene("Neighbour x", UUID.Random(), 1000, 1000);
+            scene2 = SceneSetupHelpers.SetupScene("Neighbour x+1", UUID.Random(), 1001, 1000);
+
+            ISharedRegionModule interregionComms = new LocalSimulationConnectorModule();
+            interregionComms.Initialise(new IniConfigSource());
+            interregionComms.PostInitialise();
+            SceneSetupHelpers.SetupSceneModules(scene, new IniConfigSource(), interregionComms);
+            SceneSetupHelpers.SetupSceneModules(scene2, new IniConfigSource(), interregionComms);
+
+            agent1 = UUID.Random();
+            random = new Random();
+            sog1 = NewSOG(UUID.Random(), scene, agent1);
+            sog2 = NewSOG(UUID.Random(), scene, agent1);
+            sog3 = NewSOG(UUID.Random(), scene, agent1);
+
+            //ulong neighbourHandle = Utils.UIntsToLong((uint)(neighbourx * Constants.RegionSize), (uint)(neighboury * Constants.RegionSize));
+            region1 = scene.RegionInfo.RegionHandle;
+            region2 = scene2.RegionInfo.RegionHandle;
+            
+            SceneSetupHelpers.AddRootAgent(scene, agent1);
+        }     
+        
+        [Test]
+        public void T030_TestAddAttachments()
+        {
+            TestHelper.InMethod();
+
+            ScenePresence presence = scene.GetScenePresence(agent1);
+
+            presence.AddAttachment(sog1);
+            presence.AddAttachment(sog2);
+            presence.AddAttachment(sog3);
+
+            Assert.That(presence.HasAttachments(), Is.True);
+            Assert.That(presence.ValidateAttachments(), Is.True);
+        }
+
+        [Test]
+        public void T031_RemoveAttachments()
+        {
+            TestHelper.InMethod();
+
+            ScenePresence presence = scene.GetScenePresence(agent1);
+            presence.RemoveAttachment(sog1);
+            presence.RemoveAttachment(sog2);
+            presence.RemoveAttachment(sog3);
+            Assert.That(presence.HasAttachments(), Is.False);
+        }
+
+        // I'm commenting this test because scene setup NEEDS InventoryService to 
+        // be non-null
+        //[Test]
+        public void T032_CrossAttachments()
+        {
+            TestHelper.InMethod();
+
+            ScenePresence presence = scene.GetScenePresence(agent1);
+            ScenePresence presence2 = scene2.GetScenePresence(agent1);
+            presence2.AddAttachment(sog1);
+            presence2.AddAttachment(sog2);
+
+            ISharedRegionModule serialiser = new SerialiserModule();
+            SceneSetupHelpers.SetupSceneModules(scene, new IniConfigSource(), serialiser);
+            SceneSetupHelpers.SetupSceneModules(scene2, new IniConfigSource(), serialiser);
+
+            Assert.That(presence.HasAttachments(), Is.False, "Presence has attachments before cross");
+
+            //Assert.That(presence2.CrossAttachmentsIntoNewRegion(region1, true), Is.True, "Cross was not successful");
+            Assert.That(presence2.HasAttachments(), Is.False, "Presence2 objects were not deleted");
+            Assert.That(presence.HasAttachments(), Is.True, "Presence has not received new objects");
+        }   
+        
+        private SceneObjectGroup NewSOG(UUID uuid, Scene scene, UUID agent)
+        {
+            SceneObjectPart sop = new SceneObjectPart();
+            sop.Name = RandomName();
+            sop.Description = RandomName();
+            sop.Text = RandomName();
+            sop.SitName = RandomName();
+            sop.TouchName = RandomName();
+            sop.UUID = uuid;
+            sop.Shape = PrimitiveBaseShape.Default;
+            sop.Shape.State = 1;
+            sop.OwnerID = agent;
+
+            SceneObjectGroup sog = new SceneObjectGroup(sop);
+            sog.SetScene(scene);
+
+            return sog;
+        }        
+        
+        private static string RandomName()
+        {
+            StringBuilder name = new StringBuilder();
+            int size = random.Next(5,12);
+            char ch;
+            for (int i = 0; i < size; i++)
+            {
+                ch = Convert.ToChar(Convert.ToInt32(Math.Floor(26 * random.NextDouble() + 65))) ;
+                name.Append(ch);
+            }
+            
+            return name.ToString();
+        }        
+    }
+}
\ No newline at end of file
diff --git a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceTests.cs b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceTests.cs
index ef52363..fd2d6fa 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceTests.cs
@@ -40,6 +40,7 @@ using OpenSim.Framework;
 using OpenSim.Framework.Communications;
 using OpenSim.Region.Framework.Scenes;
 using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.CoreModules.Framework.EntityTransfer;
 using OpenSim.Region.CoreModules.World.Serialiser;
 using OpenSim.Region.CoreModules.ServiceConnectorsOut.Simulation;
 using OpenSim.Tests.Common;
@@ -116,9 +117,6 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             agent.ChildrenCapSeeds = new Dictionary<ulong, string>();
             agent.child = true;
 
-            if (scene.PresenceService == null)
-                Console.WriteLine("Presence Service is null");
-
             scene.PresenceService.LoginAgent(agent.AgentID.ToString(), agent.SessionID, agent.SecureSessionID);
 
             string reason;
@@ -175,25 +173,6 @@ namespace OpenSim.Region.Framework.Scenes.Tests
 
             Assert.That(neighbours.Count, Is.EqualTo(2));
         }
-        
-        public void fixNullPresence()
-        {
-            string firstName = "testfirstname";
-
-            AgentCircuitData agent = new AgentCircuitData();
-            agent.AgentID = agent1;
-            agent.firstname = firstName;
-            agent.lastname = "testlastname";
-            agent.SessionID = UUID.Zero;
-            agent.SecureSessionID = UUID.Zero;
-            agent.circuitcode = 123;
-            agent.BaseFolder = UUID.Zero;
-            agent.InventoryFolder = UUID.Zero;
-            agent.startpos = Vector3.Zero;
-            agent.CapsPath = GetRandomCapsObjectPath();
-
-            acd1 = agent;
-        }
 
         [Test]
         public void T013_TestRemoveNeighbourRegion()
@@ -211,24 +190,36 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             CompleteAvatarMovement
             */
         }
-
-        // I'm commenting this test, because this is not supposed to happen here
-        //[Test]
-        public void T020_TestMakeRootAgent()
+        
+        /// <summary>
+        /// Test that if a root agent logs into a region, a child agent is also established in the neighbouring region
+        /// </summary>
+        /// <remarks>
+        /// Please note that unlike the other tests here, this doesn't rely on structures
+        /// </remarks>
+        [Test]
+        public void TestChildAgentEstablished()
         {
             TestHelper.InMethod();
-
-            ScenePresence presence = scene.GetScenePresence(agent1);
-            Assert.That(presence.IsChildAgent, Is.False, "Starts out as a root agent");
-
-            presence.MakeChildAgent();
-            Assert.That(presence.IsChildAgent, Is.True, "Did not change to child agent after MakeChildAgent");
-
-            // Accepts 0 but rejects Constants.RegionSize
-            Vector3 pos = new Vector3(0,unchecked(Constants.RegionSize-1),0);
-            presence.MakeRootAgent(pos,true);
-            Assert.That(presence.IsChildAgent, Is.False, "Did not go back to root agent");
-            Assert.That(presence.AbsolutePosition, Is.EqualTo(pos), "Position is not the same one entered");
+//            log4net.Config.XmlConfigurator.Configure();
+            
+            UUID agent1Id = UUID.Parse("00000000-0000-0000-0000-000000000001");
+            
+            TestScene myScene1 = SceneSetupHelpers.SetupScene("Neighbour y", UUID.Random(), 1000, 1000);
+            TestScene myScene2 = SceneSetupHelpers.SetupScene("Neighbour y + 1", UUID.Random(), 1001, 1000);            
+            
+            IConfigSource configSource = new IniConfigSource();
+            configSource.AddConfig("Modules").Set("EntityTransferModule", "BasicEntityTransferModule");                      
+            EntityTransferModule etm = new EntityTransferModule();
+            
+            SceneSetupHelpers.SetupSceneModules(myScene1, configSource, etm);            
+            
+            SceneSetupHelpers.AddRootAgent(myScene1, agent1Id);
+            ScenePresence childPresence = myScene2.GetScenePresence(agent1);
+            
+            // TODO: Need to do a fair amount of work to allow synchronous establishment of child agents
+//            Assert.That(childPresence, Is.Not.Null);
+//            Assert.That(childPresence.IsChildAgent, Is.True);
         }
 
         // I'm commenting this test because it does not represent
@@ -333,63 +324,26 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             Assert.That(presence2.IsChildAgent, Is.True, "Did not return from region as expected.");
             Assert.That(presence.IsChildAgent, Is.False, "Presence was not made root in old region again.");
         }
-
-        [Test]
-        public void T030_TestAddAttachments()
-        {
-            TestHelper.InMethod();
-
-            ScenePresence presence = scene.GetScenePresence(agent1);
-
-            presence.AddAttachment(sog1);
-            presence.AddAttachment(sog2);
-            presence.AddAttachment(sog3);
-
-            Assert.That(presence.HasAttachments(), Is.True);
-            Assert.That(presence.ValidateAttachments(), Is.True);
-        }
-
-        [Test]
-        public void T031_RemoveAttachments()
-        {
-            TestHelper.InMethod();
-
-            ScenePresence presence = scene.GetScenePresence(agent1);
-            presence.RemoveAttachment(sog1);
-            presence.RemoveAttachment(sog2);
-            presence.RemoveAttachment(sog3);
-            Assert.That(presence.HasAttachments(), Is.False);
-        }
-
-        // I'm commenting this test because scene setup NEEDS InventoryService to 
-        // be non-null
-        //[Test]
-        public void T032_CrossAttachments()
+        
+        public void fixNullPresence()
         {
-            TestHelper.InMethod();
-
-            ScenePresence presence = scene.GetScenePresence(agent1);
-            ScenePresence presence2 = scene2.GetScenePresence(agent1);
-            presence2.AddAttachment(sog1);
-            presence2.AddAttachment(sog2);
-
-            ISharedRegionModule serialiser = new SerialiserModule();
-            SceneSetupHelpers.SetupSceneModules(scene, new IniConfigSource(), serialiser);
-            SceneSetupHelpers.SetupSceneModules(scene2, new IniConfigSource(), serialiser);
-
-            Assert.That(presence.HasAttachments(), Is.False, "Presence has attachments before cross");
+            string firstName = "testfirstname";
 
-            //Assert.That(presence2.CrossAttachmentsIntoNewRegion(region1, true), Is.True, "Cross was not successful");
-            Assert.That(presence2.HasAttachments(), Is.False, "Presence2 objects were not deleted");
-            Assert.That(presence.HasAttachments(), Is.True, "Presence has not received new objects");
-        }
+            AgentCircuitData agent = new AgentCircuitData();
+            agent.AgentID = agent1;
+            agent.firstname = firstName;
+            agent.lastname = "testlastname";
+            agent.SessionID = UUID.Zero;
+            agent.SecureSessionID = UUID.Zero;
+            agent.circuitcode = 123;
+            agent.BaseFolder = UUID.Zero;
+            agent.InventoryFolder = UUID.Zero;
+            agent.startpos = Vector3.Zero;
+            agent.CapsPath = GetRandomCapsObjectPath();
 
-        [TearDown]
-        public void TearDown()
-        {
-            if (MainServer.Instance != null) MainServer.Instance.Stop();
+            acd1 = agent;
         }
-
+        
         public static string GetRandomCapsObjectPath()
         {
             UUID caps = UUID.Random();
diff --git a/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs b/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs
new file mode 100644
index 0000000..9aba8a8
--- /dev/null
+++ b/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+using System.Text;
+using System.Threading;
+using System.Timers;
+using Timer=System.Timers.Timer;
+using Nini.Config;
+using NUnit.Framework;
+using NUnit.Framework.SyntaxHelpers;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Framework.Communications;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.CoreModules.World.Serialiser;
+using OpenSim.Region.CoreModules.ServiceConnectorsOut.Simulation;
+using OpenSim.Tests.Common;
+using OpenSim.Tests.Common.Mock;
+using OpenSim.Tests.Common.Setup;
+
+namespace OpenSim.Region.Framework.Scenes.Tests
+{
+    /// <summary>
+    /// Scene presence tests
+    /// </summary>
+    [TestFixture]
+    public class SceneTests
+    {
+        /// <summary>
+        /// Very basic scene update test.  Should become more elaborate with time.
+        /// </summary>
+        [Test]
+        public void TestUpdateScene()
+        {
+            TestHelper.InMethod();
+
+            Scene scene = SceneSetupHelpers.SetupScene();
+            scene.Update();
+            
+            Assert.That(scene.Frame, Is.EqualTo(1));
+        }
+    }
+}
\ No newline at end of file