Merge branch 'master' into careminster

Conflicts:
	OpenSim/Region/Framework/Scenes/Scene.cs

4 files changed, 469 insertions, 86 deletions

diff --git a/OpenSim/Region/ClientStack/Linden/UDP/Tests/LLImageManagerTests.cs b/OpenSim/Region/ClientStack/Linden/UDP/Tests/LLImageManagerTests.cs
index 7d9f581..a0e0078 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/Tests/LLImageManagerTests.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/Tests/LLImageManagerTests.cs
@@ -75,6 +75,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP.Tests
         [SetUp]
         public void SetUp()
         {
+            base.SetUp();
+
             UUID userId = TestHelpers.ParseTail(0x3);
 
             J2KDecoderModule j2kdm = new J2KDecoderModule();
diff --git a/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs b/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
index ae58dfd..e285f21 100644
--- a/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
@@ -47,10 +47,8 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
 
         /// <summary>
         private List<Scene> m_Scenelist = new List<Scene>();
-//        private Dictionary<UUID, Scene> m_AgentRegions =
-//                new Dictionary<UUID, Scene>();
 
-        private IMessageTransferModule m_TransferModule = null;
+        private IMessageTransferModule m_TransferModule;
         private bool m_Enabled = true;
 
         #region Region Module interface
@@ -81,9 +79,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
 //            scene.RegisterModuleInterface<IInventoryTransferModule>(this);
 
             scene.EventManager.OnNewClient += OnNewClient;
-//            scene.EventManager.OnClientClosed += ClientLoggedOut;
             scene.EventManager.OnIncomingInstantMessage += OnGridInstantMessage;
-//            scene.EventManager.OnSetRootAgentScene += OnSetRootAgentScene;
         }
 
         public void RegionLoaded(Scene scene)
@@ -96,11 +92,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
                     m_log.Error("[INVENTORY TRANSFER]: No Message transfer module found, transfers will be local only");
                     m_Enabled = false;
 
-                    m_Scenelist.Clear();
-                    scene.EventManager.OnNewClient -= OnNewClient;
-//                    scene.EventManager.OnClientClosed -= ClientLoggedOut;
+//                    m_Scenelist.Clear();
+//                    scene.EventManager.OnNewClient -= OnNewClient;
                     scene.EventManager.OnIncomingInstantMessage -= OnGridInstantMessage;
-//                    scene.EventManager.OnSetRootAgentScene -= OnSetRootAgentScene;
                 }
             }
         }
@@ -108,9 +102,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
         public void RemoveRegion(Scene scene)
         {
             scene.EventManager.OnNewClient -= OnNewClient;
-//            scene.EventManager.OnClientClosed -= ClientLoggedOut;
             scene.EventManager.OnIncomingInstantMessage -= OnGridInstantMessage;
-//            scene.EventManager.OnSetRootAgentScene -= OnSetRootAgentScene;
             m_Scenelist.Remove(scene);
         }
 
@@ -139,11 +131,6 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
             // Inventory giving is conducted via instant message
             client.OnInstantMessage += OnInstantMessage;
         }
-        
-//        protected void OnSetRootAgentScene(UUID id, Scene scene)
-//        {
-//            m_AgentRegions[id] = scene;
-//        }
 
         private Scene FindClientScene(UUID agentId)
         {
@@ -188,9 +175,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
                 {
                     UUID folderID = new UUID(im.binaryBucket, 1);
                     
-                    m_log.DebugFormat("[INVENTORY TRANSFER]: Inserting original folder {0} "+
-                            "into agent {1}'s inventory",
-                            folderID, new UUID(im.toAgentID));
+                    m_log.DebugFormat(
+                        "[INVENTORY TRANSFER]: Inserting original folder {0} into agent {1}'s inventory",
+                        folderID, new UUID(im.toAgentID));
                     
                     InventoryFolderBase folderCopy 
                         = scene.GiveInventoryFolder(recipientID, client.AgentId, folderID, UUID.Zero);
@@ -213,7 +200,10 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
                         user.ControllingClient.SendBulkUpdateInventory(folderCopy);
 
                     // HACK!!
-                    im.imSessionID = folderID.Guid;
+                    // Insert the ID of the copied folder into the IM so that we know which item to move to trash if it
+                    // is rejected.
+                    // XXX: This is probably a misuse of the session ID slot.
+                    im.imSessionID = copyID.Guid;
                 }
                 else
                 {
@@ -243,7 +233,10 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
                         user.ControllingClient.SendBulkUpdateInventory(itemCopy);
 
                     // HACK!!
-                    im.imSessionID = itemID.Guid;
+                    // Insert the ID of the copied item into the IM so that we know which item to move to trash if it
+                    // is rejected.
+                    // XXX: This is probably a misuse of the session ID slot.
+                    im.imSessionID = copyID.Guid;
                 }
 
                 im.offline = 0;
@@ -419,7 +412,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
                 {
                     folder = new InventoryFolderBase(inventoryID, client.AgentId);
                     folder = invService.GetFolder(folder);
-                    
+
                     if (folder != null & trashFolder != null)
                     {
                         previousParentFolderID = folder.ParentID;
@@ -471,70 +464,6 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
             }
         }
 
-//        public bool NeedSceneCacheClear(UUID agentID, Scene scene)
-//        {
-//            if (!m_AgentRegions.ContainsKey(agentID))
-//            {
-//                // Since we can get here two ways, we need to scan
-//                // the scenes here. This is somewhat more expensive
-//                // but helps avoid a nasty bug
-//                //
-//
-//                foreach (Scene s in m_Scenelist)
-//                {
-//                    ScenePresence presence;
-//
-//                    if (s.TryGetScenePresence(agentID, out presence))
-//                    {
-//                        // If the agent is in this scene, then we
-//                        // are being called twice in a single
-//                        // teleport. This is wasteful of cycles
-//                        // but harmless due to this 2nd level check
-//                        //
-//                        // If the agent is found in another scene
-//                        // then the list wasn't current
-//                        //
-//                        // If the agent is totally unknown, then what
-//                        // are we even doing here??
-//                        //
-//                        if (s == scene)
-//                        {
-//                            //m_log.Debug("[INVTRANSFERMOD]: s == scene. Returning true in " + scene.RegionInfo.RegionName);
-//                            return true;
-//                        }
-//                        else
-//                        {
-//                            //m_log.Debug("[INVTRANSFERMOD]: s != scene. Returning false in " + scene.RegionInfo.RegionName);
-//                            return false;
-//                        }
-//                    }
-//                }
-//                //m_log.Debug("[INVTRANSFERMOD]: agent not in scene. Returning true in " + scene.RegionInfo.RegionName);
-//                return true;
-//            }
-//
-//            // The agent is left in current Scene, so we must be
-//            // going to another instance
-//            //
-//            if (m_AgentRegions[agentID] == scene)
-//            {
-//                //m_log.Debug("[INVTRANSFERMOD]: m_AgentRegions[agentID] == scene. Returning true in " + scene.RegionInfo.RegionName);
-//                m_AgentRegions.Remove(agentID);
-//                return true;
-//            }
-//
-//            // Another region has claimed the agent
-//            //
-//            //m_log.Debug("[INVTRANSFERMOD]: last resort. Returning false in " + scene.RegionInfo.RegionName);
-//            return false;
-//        }
-//
-//        public void ClientLoggedOut(UUID agentID, Scene scene)
-//        {
-//            if (m_AgentRegions.ContainsKey(agentID))
-//                m_AgentRegions.Remove(agentID);
-//        }
-
         /// <summary>
         ///
         /// </summary>
diff --git a/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/Tests/InventoryTransferModuleTests.cs b/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/Tests/InventoryTransferModuleTests.cs
new file mode 100644
index 0000000..162a0c3
--- /dev/null
+++ b/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/Tests/InventoryTransferModuleTests.cs
@@ -0,0 +1,449 @@
+/*
+ * 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 log4net.Config;
+using Nini.Config;
+using NUnit.Framework;
+using OpenMetaverse;
+using OpenMetaverse.Assets;
+using OpenSim.Framework;
+using OpenSim.Region.CoreModules.Avatar.Inventory.Transfer;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Services.Interfaces;
+using OpenSim.Tests.Common;
+using OpenSim.Tests.Common.Mock;
+
+namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer.Tests
+{
+    [TestFixture]
+    public class InventoryTransferModuleTests : OpenSimTestCase
+    {    
+        protected TestScene m_scene;       
+            
+        [SetUp]
+        public override void SetUp()
+        {
+            base.SetUp();
+
+            IConfigSource config = new IniConfigSource();
+            config.AddConfig("Messaging");
+            config.Configs["Messaging"].Set("InventoryTransferModule", "InventoryTransferModule");
+
+            m_scene = new SceneHelpers().SetupScene();            
+            SceneHelpers.SetupSceneModules(m_scene, config, new InventoryTransferModule());
+        } 
+
+        [Test]
+        public void TestAcceptGivenItem()
+        {
+//            TestHelpers.EnableLogging();
+
+            UUID initialSessionId = TestHelpers.ParseTail(0x10);
+            UUID itemId = TestHelpers.ParseTail(0x100);
+            UUID assetId = TestHelpers.ParseTail(0x200);
+
+            UserAccount ua1 
+                = UserAccountHelpers.CreateUserWithInventory(m_scene, "User", "One", TestHelpers.ParseTail(0x1), "pw");
+            UserAccount ua2 
+                = UserAccountHelpers.CreateUserWithInventory(m_scene, "User", "Two", TestHelpers.ParseTail(0x2), "pw");
+
+            ScenePresence giverSp = SceneHelpers.AddScenePresence(m_scene, ua1);
+            TestClient giverClient = (TestClient)giverSp.ControllingClient;
+
+            ScenePresence receiverSp = SceneHelpers.AddScenePresence(m_scene, ua2);
+            TestClient receiverClient = (TestClient)receiverSp.ControllingClient;
+
+            // Create the object to test give
+            InventoryItemBase originalItem 
+                = UserInventoryHelpers.CreateInventoryItem(
+                    m_scene, "givenObj", itemId, assetId, giverSp.UUID, InventoryType.Object);
+
+            byte[] giveImBinaryBucket = new byte[17];
+            byte[] itemIdBytes = itemId.GetBytes();
+            Array.Copy(itemIdBytes, 0, giveImBinaryBucket, 1, itemIdBytes.Length);
+
+            GridInstantMessage giveIm 
+                = new GridInstantMessage(
+                    m_scene, 
+                    giverSp.UUID, 
+                    giverSp.Name, 
+                    receiverSp.UUID, 
+                    (byte)InstantMessageDialog.InventoryOffered,
+                    false,
+                    "inventory offered msg", 
+                    initialSessionId,
+                    false, 
+                    Vector3.Zero,
+                    giveImBinaryBucket,
+                    true);
+
+            giverClient.HandleImprovedInstantMessage(giveIm);
+
+            // These details might not all be correct.  
+            GridInstantMessage acceptIm 
+                = new GridInstantMessage(
+                    m_scene, 
+                    receiverSp.UUID, 
+                    receiverSp.Name, 
+                    giverSp.UUID, 
+                    (byte)InstantMessageDialog.InventoryAccepted, 
+                    false,
+                    "inventory accepted msg", 
+                    initialSessionId,
+                    false, 
+                    Vector3.Zero,
+                    null,
+                    true);
+
+            receiverClient.HandleImprovedInstantMessage(acceptIm);
+
+            // Test for item remaining in the giver's inventory (here we assume a copy item)
+            // TODO: Test no-copy items.
+            InventoryItemBase originalItemAfterGive
+                = UserInventoryHelpers.GetInventoryItem(m_scene.InventoryService, giverSp.UUID, "Objects/givenObj");
+
+            Assert.That(originalItemAfterGive, Is.Not.Null);
+            Assert.That(originalItemAfterGive.ID, Is.EqualTo(originalItem.ID));
+
+            // Test for item successfully making it into the receiver's inventory
+            InventoryItemBase receivedItem 
+                = UserInventoryHelpers.GetInventoryItem(m_scene.InventoryService, receiverSp.UUID, "Objects/givenObj");
+
+            Assert.That(receivedItem, Is.Not.Null);
+            Assert.That(receivedItem.ID, Is.Not.EqualTo(originalItem.ID));
+
+            // Test that on a delete, item still exists and is accessible for the giver.
+            m_scene.InventoryService.DeleteItems(receiverSp.UUID, new List<UUID>() { receivedItem.ID });
+
+            InventoryItemBase originalItemAfterDelete
+                = UserInventoryHelpers.GetInventoryItem(m_scene.InventoryService, giverSp.UUID, "Objects/givenObj");
+
+            Assert.That(originalItemAfterDelete, Is.Not.Null);
+
+            // TODO: Test scenario where giver deletes their item first.
+        }       
+
+        /// <summary>
+        /// Test user rejection of a given item.
+        /// </summary>
+        /// <remarks>
+        /// A rejected item still ends up in the user's trash folder.
+        /// </remarks>
+        [Test]
+        public void TestRejectGivenItem()
+        {
+//            TestHelpers.EnableLogging();
+
+            UUID initialSessionId = TestHelpers.ParseTail(0x10);
+            UUID itemId = TestHelpers.ParseTail(0x100);
+            UUID assetId = TestHelpers.ParseTail(0x200);
+
+            UserAccount ua1 
+                = UserAccountHelpers.CreateUserWithInventory(m_scene, "User", "One", TestHelpers.ParseTail(0x1), "pw");
+            UserAccount ua2 
+                = UserAccountHelpers.CreateUserWithInventory(m_scene, "User", "Two", TestHelpers.ParseTail(0x2), "pw");
+
+            ScenePresence giverSp = SceneHelpers.AddScenePresence(m_scene, ua1);
+            TestClient giverClient = (TestClient)giverSp.ControllingClient;
+
+            ScenePresence receiverSp = SceneHelpers.AddScenePresence(m_scene, ua2);
+            TestClient receiverClient = (TestClient)receiverSp.ControllingClient;
+
+            // Create the object to test give
+            InventoryItemBase originalItem 
+                = UserInventoryHelpers.CreateInventoryItem(
+                    m_scene, "givenObj", itemId, assetId, giverSp.UUID, InventoryType.Object);
+
+            GridInstantMessage receivedIm = null;
+            receiverClient.OnReceivedInstantMessage += im => receivedIm = im;
+
+            byte[] giveImBinaryBucket = new byte[17];
+            byte[] itemIdBytes = itemId.GetBytes();
+            Array.Copy(itemIdBytes, 0, giveImBinaryBucket, 1, itemIdBytes.Length);
+
+            GridInstantMessage giveIm 
+                = new GridInstantMessage(
+                    m_scene, 
+                    giverSp.UUID, 
+                    giverSp.Name, 
+                    receiverSp.UUID, 
+                    (byte)InstantMessageDialog.InventoryOffered,
+                    false,
+                    "inventory offered msg", 
+                    initialSessionId,
+                    false, 
+                    Vector3.Zero,
+                    giveImBinaryBucket,
+                    true);
+
+            giverClient.HandleImprovedInstantMessage(giveIm);
+
+            // These details might not all be correct.  
+            // Session ID is now the created item ID (!)
+            GridInstantMessage rejectIm 
+                = new GridInstantMessage(
+                    m_scene, 
+                    receiverSp.UUID, 
+                    receiverSp.Name, 
+                    giverSp.UUID, 
+                    (byte)InstantMessageDialog.InventoryDeclined, 
+                    false,
+                    "inventory declined msg", 
+                    new UUID(receivedIm.imSessionID),
+                    false, 
+                    Vector3.Zero,
+                    null,
+                    true);
+
+            receiverClient.HandleImprovedInstantMessage(rejectIm);
+
+            // Test for item remaining in the giver's inventory (here we assume a copy item)
+            // TODO: Test no-copy items.
+            InventoryItemBase originalItemAfterGive
+                = UserInventoryHelpers.GetInventoryItem(m_scene.InventoryService, giverSp.UUID, "Objects/givenObj");
+
+            Assert.That(originalItemAfterGive, Is.Not.Null);
+            Assert.That(originalItemAfterGive.ID, Is.EqualTo(originalItem.ID));
+
+            // Test for item successfully making it into the receiver's inventory
+            InventoryItemBase receivedItem 
+                = UserInventoryHelpers.GetInventoryItem(m_scene.InventoryService, receiverSp.UUID, "Trash/givenObj");
+
+            InventoryFolderBase trashFolder 
+                = m_scene.InventoryService.GetFolderForType(receiverSp.UUID, AssetType.TrashFolder);
+
+            Assert.That(receivedItem, Is.Not.Null);
+            Assert.That(receivedItem.ID, Is.Not.EqualTo(originalItem.ID));
+            Assert.That(receivedItem.Folder, Is.EqualTo(trashFolder.ID));
+
+            // Test that on a delete, item still exists and is accessible for the giver.
+            m_scene.InventoryService.PurgeFolder(trashFolder);
+
+            InventoryItemBase originalItemAfterDelete
+                = UserInventoryHelpers.GetInventoryItem(m_scene.InventoryService, giverSp.UUID, "Objects/givenObj");
+
+            Assert.That(originalItemAfterDelete, Is.Not.Null);
+        }  
+
+        [Test]
+        public void TestAcceptGivenFolder()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            UUID initialSessionId = TestHelpers.ParseTail(0x10);
+            UUID folderId = TestHelpers.ParseTail(0x100);
+
+            UserAccount ua1 
+                = UserAccountHelpers.CreateUserWithInventory(m_scene, "User", "One", TestHelpers.ParseTail(0x1), "pw");
+            UserAccount ua2 
+                = UserAccountHelpers.CreateUserWithInventory(m_scene, "User", "Two", TestHelpers.ParseTail(0x2), "pw");
+
+            ScenePresence giverSp = SceneHelpers.AddScenePresence(m_scene, ua1);
+            TestClient giverClient = (TestClient)giverSp.ControllingClient;
+
+            ScenePresence receiverSp = SceneHelpers.AddScenePresence(m_scene, ua2);
+            TestClient receiverClient = (TestClient)receiverSp.ControllingClient;
+
+            InventoryFolderBase originalFolder 
+                = UserInventoryHelpers.CreateInventoryFolder(
+                    m_scene.InventoryService, giverSp.UUID, folderId, "f1", true);
+
+            byte[] giveImBinaryBucket = new byte[17];
+            giveImBinaryBucket[0] = (byte)AssetType.Folder;
+            byte[] itemIdBytes = folderId.GetBytes();
+            Array.Copy(itemIdBytes, 0, giveImBinaryBucket, 1, itemIdBytes.Length);
+
+            GridInstantMessage giveIm 
+                = new GridInstantMessage(
+                    m_scene, 
+                    giverSp.UUID, 
+                    giverSp.Name, 
+                    receiverSp.UUID, 
+                    (byte)InstantMessageDialog.InventoryOffered,
+                    false,
+                    "inventory offered msg", 
+                    initialSessionId,
+                    false, 
+                    Vector3.Zero,
+                    giveImBinaryBucket,
+                    true);
+
+            giverClient.HandleImprovedInstantMessage(giveIm);
+
+            // These details might not all be correct.  
+            GridInstantMessage acceptIm 
+                = new GridInstantMessage(
+                    m_scene, 
+                    receiverSp.UUID, 
+                    receiverSp.Name, 
+                    giverSp.UUID, 
+                    (byte)InstantMessageDialog.InventoryAccepted, 
+                    false,
+                    "inventory accepted msg", 
+                    initialSessionId,
+                    false, 
+                    Vector3.Zero,
+                    null,
+                    true);
+
+            receiverClient.HandleImprovedInstantMessage(acceptIm);
+
+            // Test for item remaining in the giver's inventory (here we assume a copy item)
+            // TODO: Test no-copy items.
+            InventoryFolderBase originalFolderAfterGive
+                = UserInventoryHelpers.GetInventoryFolder(m_scene.InventoryService, giverSp.UUID, "f1");
+
+            Assert.That(originalFolderAfterGive, Is.Not.Null);
+            Assert.That(originalFolderAfterGive.ID, Is.EqualTo(originalFolder.ID));
+
+            // Test for item successfully making it into the receiver's inventory
+            InventoryFolderBase receivedFolder 
+                = UserInventoryHelpers.GetInventoryFolder(m_scene.InventoryService, receiverSp.UUID, "f1");
+
+            Assert.That(receivedFolder, Is.Not.Null);
+            Assert.That(receivedFolder.ID, Is.Not.EqualTo(originalFolder.ID));
+
+            // Test that on a delete, item still exists and is accessible for the giver.
+            m_scene.InventoryService.DeleteFolders(receiverSp.UUID, new List<UUID>() { receivedFolder.ID });
+
+            InventoryFolderBase originalFolderAfterDelete
+                = UserInventoryHelpers.GetInventoryFolder(m_scene.InventoryService, giverSp.UUID, "f1");
+
+            Assert.That(originalFolderAfterDelete, Is.Not.Null);
+
+            // TODO: Test scenario where giver deletes their item first.
+        }       
+
+        /// <summary>
+        /// Test user rejection of a given item.
+        /// </summary>
+        /// <remarks>
+        /// A rejected item still ends up in the user's trash folder.
+        /// </remarks>
+        [Test]
+        public void TestRejectGivenFolder()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            UUID initialSessionId = TestHelpers.ParseTail(0x10);
+            UUID folderId = TestHelpers.ParseTail(0x100);
+
+            UserAccount ua1 
+                = UserAccountHelpers.CreateUserWithInventory(m_scene, "User", "One", TestHelpers.ParseTail(0x1), "pw");
+            UserAccount ua2 
+                = UserAccountHelpers.CreateUserWithInventory(m_scene, "User", "Two", TestHelpers.ParseTail(0x2), "pw");
+
+            ScenePresence giverSp = SceneHelpers.AddScenePresence(m_scene, ua1);
+            TestClient giverClient = (TestClient)giverSp.ControllingClient;
+
+            ScenePresence receiverSp = SceneHelpers.AddScenePresence(m_scene, ua2);
+            TestClient receiverClient = (TestClient)receiverSp.ControllingClient;
+
+            // Create the folder to test give
+            InventoryFolderBase originalFolder 
+                = UserInventoryHelpers.CreateInventoryFolder(
+                    m_scene.InventoryService, giverSp.UUID, folderId, "f1", true);
+
+            GridInstantMessage receivedIm = null;
+            receiverClient.OnReceivedInstantMessage += im => receivedIm = im;
+
+            byte[] giveImBinaryBucket = new byte[17];
+            giveImBinaryBucket[0] = (byte)AssetType.Folder;
+            byte[] itemIdBytes = folderId.GetBytes();
+            Array.Copy(itemIdBytes, 0, giveImBinaryBucket, 1, itemIdBytes.Length);
+
+            GridInstantMessage giveIm 
+                = new GridInstantMessage(
+                    m_scene, 
+                    giverSp.UUID, 
+                    giverSp.Name, 
+                    receiverSp.UUID, 
+                    (byte)InstantMessageDialog.InventoryOffered,
+                    false,
+                    "inventory offered msg", 
+                    initialSessionId,
+                    false, 
+                    Vector3.Zero,
+                    giveImBinaryBucket,
+                    true);
+
+            giverClient.HandleImprovedInstantMessage(giveIm);
+
+            // These details might not all be correct.  
+            // Session ID is now the created item ID (!)
+            GridInstantMessage rejectIm 
+                = new GridInstantMessage(
+                    m_scene, 
+                    receiverSp.UUID, 
+                    receiverSp.Name, 
+                    giverSp.UUID, 
+                    (byte)InstantMessageDialog.InventoryDeclined, 
+                    false,
+                    "inventory declined msg", 
+                    new UUID(receivedIm.imSessionID),
+                    false, 
+                    Vector3.Zero,
+                    null,
+                    true);
+
+            receiverClient.HandleImprovedInstantMessage(rejectIm);
+
+            // Test for item remaining in the giver's inventory (here we assume a copy item)
+            // TODO: Test no-copy items.
+            InventoryFolderBase originalFolderAfterGive
+                = UserInventoryHelpers.GetInventoryFolder(m_scene.InventoryService, giverSp.UUID, "f1");
+
+            Assert.That(originalFolderAfterGive, Is.Not.Null);
+            Assert.That(originalFolderAfterGive.ID, Is.EqualTo(originalFolder.ID));
+
+            // Test for folder successfully making it into the receiver's inventory
+            InventoryFolderBase receivedFolder 
+                = UserInventoryHelpers.GetInventoryFolder(m_scene.InventoryService, receiverSp.UUID, "Trash/f1");
+
+            InventoryFolderBase trashFolder 
+                = m_scene.InventoryService.GetFolderForType(receiverSp.UUID, AssetType.TrashFolder);
+
+            Assert.That(receivedFolder, Is.Not.Null);
+            Assert.That(receivedFolder.ID, Is.Not.EqualTo(originalFolder.ID));
+            Assert.That(receivedFolder.ParentID, Is.EqualTo(trashFolder.ID));
+
+            // Test that on a delete, item still exists and is accessible for the giver.
+            m_scene.InventoryService.PurgeFolder(trashFolder);
+
+            InventoryFolderBase originalFolderAfterDelete
+                = UserInventoryHelpers.GetInventoryFolder(m_scene.InventoryService, giverSp.UUID, "f1");
+
+            Assert.That(originalFolderAfterDelete, Is.Not.Null);
+        }  
+    }
+}
\ No newline at end of file
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs
index 309d004..f047176 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs
@@ -97,6 +97,9 @@ public abstract class BSPhysObject : PhysicsActor
 
         CollisionCollection = new CollisionEventUpdate();
         CollisionsLastReported = CollisionCollection;
+        CollisionsLastTick = new CollisionEventUpdate();
+        CollisionsLastTickStep = -1;
+
         SubscribedEventsMs = 0;
         CollidingStep = 0;
         CollidingGroundStep = 0;