Add test to check persistence of newly added pre-linked objects

Added a MockRegionDataPlugin to do in-memory persistence for tests since adding this to OpenSim.Data.Null.NullDataStore doesn't seem appropriate
NullDataStore can do nothing because OpenSim only ever retrieve region objects from the database on startup.  Adding an in-memory store here would be unecessary overhead.

2 files changed, 155 insertions, 2 deletions

diff --git a/OpenSim/Tests/Common/Mock/MockRegionDataPlugin.cs b/OpenSim/Tests/Common/Mock/MockRegionDataPlugin.cs
new file mode 100644
index 0000000..1c139c5
--- /dev/null
+++ b/OpenSim/Tests/Common/Mock/MockRegionDataPlugin.cs
@@ -0,0 +1,149 @@
+/*
+ * 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.Reflection;
+using System.Collections.Generic;
+using log4net;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+
+namespace OpenSim.Data.Null
+{
+    /// <summary>
+    /// Mock region data plugin.  This obeys the api contract for persistence but stores everything in memory, so that
+    /// tests can check correct persistence.
+    /// </summary>
+    public class NullDataStore : IRegionDataStore
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+        
+        protected Dictionary<UUID, RegionSettings> m_regionSettings = new Dictionary<UUID, RegionSettings>();
+        protected Dictionary<UUID, SceneObjectGroup> m_sceneObjects = new Dictionary<UUID, SceneObjectGroup>();
+        protected Dictionary<UUID, ICollection<TaskInventoryItem>> m_primItems 
+            = new Dictionary<UUID, ICollection<TaskInventoryItem>>();
+        protected Dictionary<UUID, double[,]> m_terrains = new Dictionary<UUID, double[,]>();
+        protected Dictionary<UUID, LandData> m_landData = new Dictionary<UUID, LandData>();
+        
+        public void Initialise(string dbfile)
+        {
+            return;
+        }
+
+        public void Dispose()
+        {
+        }
+
+        public void StoreRegionSettings(RegionSettings rs)
+        {
+            m_regionSettings[rs.RegionUUID] = rs;
+        }
+        
+        public RegionLightShareData LoadRegionWindlightSettings(UUID regionUUID)
+        {
+            //This connector doesn't support the windlight module yet
+            //Return default LL windlight settings
+            return new RegionLightShareData();
+        }
+        
+        public void StoreRegionWindlightSettings(RegionLightShareData wl)
+        {
+            //This connector doesn't support the windlight module yet
+        }
+        
+        public RegionSettings LoadRegionSettings(UUID regionUUID)
+        {
+            RegionSettings rs = null;
+            m_regionSettings.TryGetValue(regionUUID, out rs);
+            return rs;
+        }
+
+        public void StoreObject(SceneObjectGroup obj, UUID regionUUID)
+        {
+            m_log.DebugFormat(
+                "[MOCK REGION DATA PLUGIN]: Storing object {0} {1} in {2}", obj.Name, obj.UUID, regionUUID);
+            m_sceneObjects[obj.UUID] = obj;
+        }
+
+        public void RemoveObject(UUID obj, UUID regionUUID)
+        {
+            m_log.DebugFormat(
+                "[MOCK REGION DATA PLUGIN]: Removing object {0} from {1}", obj, regionUUID);
+            
+            if (m_sceneObjects.ContainsKey(obj))
+                m_sceneObjects.Remove(obj);
+        }
+
+        // see IRegionDatastore
+        public void StorePrimInventory(UUID primID, ICollection<TaskInventoryItem> items)
+        {
+            m_primItems[primID] = items;
+        }
+
+        public List<SceneObjectGroup> LoadObjects(UUID regionUUID)
+        {
+            m_log.DebugFormat(
+                "[MOCK REGION DATA PLUGIN]: Loading objects from {0}", regionUUID);
+            
+            return new List<SceneObjectGroup>(m_sceneObjects.Values);
+        }
+
+        public void StoreTerrain(double[,] ter, UUID regionID)
+        {
+            m_terrains[regionID] = ter;
+        }
+
+        public double[,] LoadTerrain(UUID regionID)
+        {
+            if (m_terrains.ContainsKey(regionID))
+                return m_terrains[regionID];
+            else
+                return null;
+        }
+
+        public void RemoveLandObject(UUID globalID)
+        {
+            if (m_landData.ContainsKey(globalID))
+                m_landData.Remove(globalID);
+        }
+
+        public void StoreLandObject(ILandObject land)
+        {
+            m_landData[land.LandData.GlobalID] = land.LandData;
+        }
+
+        public List<LandData> LoadLandObjects(UUID regionUUID)
+        {
+            return new List<LandData>(m_landData.Values);
+        }
+
+        public void Shutdown()
+        {
+        }
+    }
+}
\ No newline at end of file
diff --git a/OpenSim/Tests/Common/Mock/TestScene.cs b/OpenSim/Tests/Common/Mock/TestScene.cs
index 01f2c14..615e519 100644
--- a/OpenSim/Tests/Common/Mock/TestScene.cs
+++ b/OpenSim/Tests/Common/Mock/TestScene.cs
@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) Contributors, http://opensimulator.org/
  * See CONTRIBUTORS.TXT for a full list of copyright holders.
  *
@@ -29,7 +29,6 @@ using System;
 using Nini.Config;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications;
-
 using OpenSim.Framework.Servers;
 using OpenSim.Region.Framework;
 using OpenSim.Region.Framework.Scenes;
@@ -49,6 +48,11 @@ namespace OpenSim.Tests.Common.Mock
         }
         
         /// <summary>
+        /// Allow retrieval for test check purposes
+        /// </summary>
+        public StorageManager StorageManager { get { return m_storageManager; } }
+        
+        /// <summary>
         /// Temporarily override session authentication for tests (namely teleport).
         /// </summary>
         ///