* csharp-sdk.sln: chore: 循环引用检测及测试；保存批次算法调整

* Test.cs:
* Utils.cs:
* AVObject.cs:
* AppRouterTest.cs:
* ObjectTest.cs:
* AVObject.cs:
* Common.Test.csproj:
* AVObjectTest.cs:
* AVException.cs:

Storage/Source/Public/AVObject.cs

@@ -1181,7 +1181,7 @@ string propertyName
                 // The task produced by taskStart. By running this immediately, we allow everything prior
                 // to toAwait to run before waiting for all of the queues on all of the objects.
                 Task<T> fullTask = taskStart(readyToStart.Task);
-
+                
                 // Add fullTask to each of the objects' queues.
                 var childTasks = new List<Task>();
                 foreach (AVObject obj in objects)

Storage/Storage.Test/AVObjectTest.cs

@@ -0,0 +1,189 @@
+using NUnit.Framework;
+using System;
+using System.Text;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using System.Collections;
+using System.Collections.Generic;
+
+namespace LeanCloud.Test {
+    public class LCObject {
+        public string Id {
+            get; set;
+        }
+
+        public Dictionary<string, object> Data {
+            get; set;
+        }
+
+        public LCObject(string id) {
+            Data = new Dictionary<string, object>();
+            Id = id;
+        }
+
+        public static Stack<Batch> Batch(IEnumerable<LCObject> objects) {
+            Stack<Batch> batches = new Stack<Batch>();
+            
+            IEnumerable<object> deps = objects;
+            do {
+                // 只添加本层依赖的 LCObject
+                IEnumerable<LCObject> avObjects = deps.OfType<LCObject>();
+                if (avObjects.Any()) {
+                    batches.Push(new Batch(avObjects));
+                }
+                
+                HashSet<object> childSets = new HashSet<object>();
+                foreach (object dep in deps) {
+                    IEnumerable children = null;
+                    if (dep is IList) {
+                        children = dep as IList;
+                    } else if (dep is IDictionary) {
+                        children = dep as IDictionary;
+                    } else if (dep is LCObject) {
+                        children = (dep as LCObject).Data.Values;
+                    }
+                    if (children != null) {
+                        foreach (object child in children) {
+                            childSets.Add(child);
+                        }
+                    }
+                }
+                deps = childSets;
+            } while (deps != null && deps.Any());
+
+            return batches;
+        }
+
+        public static bool HasCircleReference(object obj, HashSet<LCObject> parents) {
+            if (parents.Contains(obj)) {
+                return true;
+            }
+            IEnumerable deps = null;
+            if (obj is IList) {
+                deps = obj as IList;
+            } else if (obj is IDictionary) {
+                deps = (obj as IDictionary).Values;
+            } else if (obj is LCObject) {
+                deps = (obj as LCObject).Data.Values;
+            }
+            HashSet<LCObject> depParent = new HashSet<LCObject>(parents);
+            if (obj is LCObject) {
+                depParent.Add((LCObject) obj);
+            }
+            if (deps != null) {
+                foreach (object dep in deps) {
+                    HashSet<LCObject> set = new HashSet<LCObject>(depParent);
+                    if (HasCircleReference(dep, set)) {
+                        return true;
+                    }
+                }
+            }
+            return false;
+        }
+
+        public Stack<Batch> Batch() {
+            return Batch(new List<LCObject> { this });
+        }
+
+        public bool HasCircleReference() {
+            return HasCircleReference(this, new HashSet<LCObject>());
+        }
+    }
+
+    public class Batch {
+        HashSet<LCObject> ObjectSet {
+            get; set;
+        }
+
+        public Batch() {
+            ObjectSet = new HashSet<LCObject>();
+        }
+
+        public Batch(IEnumerable<LCObject> objects) : this() {
+            foreach (LCObject obj in objects) {
+                ObjectSet.Add(obj);
+            }
+        }
+
+        public override string ToString() {
+            StringBuilder sb = new StringBuilder();
+            sb.AppendLine("----------------------------");
+            foreach (LCObject obj in ObjectSet) {
+                sb.AppendLine(obj.Id);
+            }
+            sb.AppendLine("----------------------------");
+            return sb.ToString();
+        }
+    }
+
+    public class AVObjectTest {
+        void PrintBatches(Stack<Batch> batches) {
+            while (batches.Any()) {
+                Batch batch = batches.Pop();
+                TestContext.WriteLine(batch);
+            }
+        }
+
+        [Test]
+        public void Simple() {
+            LCObject a = new LCObject("a");
+            LCObject b = new LCObject("b");
+            LCObject c = new LCObject("c");
+            a.Data["child"] = b;
+            b.Data["child"] = c;
+
+            Assert.IsFalse(a.HasCircleReference());
+
+            Stack<Batch> batches = a.Batch();
+            PrintBatches(batches);
+        }
+
+        [Test]
+        public void Array() {
+            LCObject a = new LCObject("a");
+            LCObject b = new LCObject("b");
+            LCObject c = new LCObject("c");
+            a.Data["children"] = new List<LCObject> { b, c };
+
+            Assert.IsFalse(a.HasCircleReference());
+
+            Stack<Batch> batches = a.Batch();
+            PrintBatches(batches);
+        }
+
+        [Test]
+        public void SimpleCircleReference() {
+            LCObject a = new LCObject("a");
+            LCObject b = new LCObject("b");
+            a.Data["child"] = b;
+            b.Data["child"] = a;
+
+            Assert.IsTrue(a.HasCircleReference());
+        }
+
+        [Test]
+        public void ComplexCircleReference() {
+            LCObject a = new LCObject("a");
+            LCObject b = new LCObject("b");
+            LCObject c = new LCObject("c");
+            a.Data["arr"] = new List<object> { 1, b };
+            a.Data["child"] = c;
+            b.Data["arr"] = new List<object> { 2, a };
+
+            Assert.IsTrue(a.HasCircleReference());
+        }
+
+        [Test]
+        public void ComplexCircleReference2() {
+            LCObject a = new LCObject("a");
+            LCObject b = new LCObject("b");
+            List<object> list = new List<object>();
+            a.Data["list"] = list;
+            b.Data["list"] = list;
+            a.Data["child"] = b;
+
+            Assert.IsFalse(a.HasCircleReference());
+        }
+    }
+}

Storage/Storage.Test/ObjectTest.cs

@@ -3,14 +3,21 @@ using System;
 using System.Threading;
 using System.Threading.Tasks;
 using System.Collections.Generic;
+using LeanCloud.Common;
 
 namespace LeanCloud.Test {
     public class ObjectTests {
         [SetUp]
         public void SetUp() {
+            Logger.LogDelegate += Utils.Print;
             Utils.InitNorthChina();
         }
 
+        [TearDown]
+        public void TearDown() {
+            Logger.LogDelegate -= Utils.Print;
+        }
+
         [Test]
         public async Task Save() {
             AVObject obj = AVObject.Create("Foo");
@@ -20,7 +27,7 @@ namespace LeanCloud.Test {
                 { "hello", 1 },
                 { "world", 2 }
             };
-            await obj.SaveAsync();
+            await obj.Save();
             Assert.NotNull(obj.ObjectId);
             Assert.NotNull(obj.CreatedAt);
             Assert.NotNull(obj.UpdatedAt);
@@ -38,32 +45,57 @@ namespace LeanCloud.Test {
             TestContext.Out.WriteLine($"balance: {account["balance"]}");
         }
 
+        //[Test]
+        //public async Task SaveWithPointer() {
+        //    AVObject comment = new AVObject("Comment") {
+        //        { "content", "Hello, Comment" }
+        //    };
+
+        //    AVObject post = new AVObject("Post") {
+        //        { "name", "New Post" },
+        //        { "category", new AVObject("Category") {
+        //            { "name", "new post category" }
+        //        } }
+        //    };
+        //    comment["post"] = post;
+
+        //    AVObject testPost = new AVObject("Post") {
+        //        { "name", "Test Post" },
+        //        { "category", new AVObject("Category") {
+        //            { "name", "test post category" }
+        //        } }
+        //    };
+        //    comment["test_post"] = testPost;
+
+        //    await comment.Save();
+        //    TestContext.Out.WriteLine(post);
+        //    TestContext.Out.WriteLine(testPost);
+        //    TestContext.Out.WriteLine(comment);
+        //}
+
         [Test]
         public async Task SaveWithPointer() {
-            AVObject comment = new AVObject("Comment") {
-                { "content", "Hello, Comment" }
-            };
+            AVObject parent = new AVObject("Parent");
+            AVObject c1 = new AVObject("C1");
+            AVObject c2 = new AVObject("C2");
+            parent["c1"] = c1;
+            parent["c2"] = c2;
+            await parent.Save();
+        }
 
-            AVObject post = new AVObject("Post") {
-                { "name", "New Post" },
-                { "category", new AVObject("Category") {
-                    { "name", "new post category" }
-                } }
+        [Test]
+        public async Task SaveWithPointerArray() {
+            AVObject parent = new AVObject("Parent");
+            AVObject c1 = new AVObject("C1");
+            AVObject c2 = new AVObject("C2");
+            parent["iList"] = new List<int> { 1, 1, 2, 3 };
+            parent["cList"] = new List<AVObject> { c1, c2 };
+            parent["cDict"] = new Dictionary<string, AVObject> {
+                { "c1", c1 },
+                { "c2", c2 }
             };
-            comment["post"] = post;
+            await parent.SaveAsync();
 
-            AVObject testPost = new AVObject("Post") {
-                { "name", "Test Post" },
-                { "category", new AVObject("Category") {
-                    { "name", "test post category" }
-                } }
-            };
-            comment["test_post"] = testPost;
-
-            await comment.SaveAsync();
-            TestContext.Out.WriteLine(post);
-            TestContext.Out.WriteLine(testPost);
-            TestContext.Out.WriteLine(comment);
         }
 
         [Test]
@@ -199,5 +231,54 @@ namespace LeanCloud.Test {
                 }
             });
         }
+
+        [Test]
+        public void SimpleCircleReference() {
+            AVObject a = new AVObject("A");
+            AVObject b = new AVObject("B");
+            a["b"] = b;
+            b["a"] = a;
+
+            Assert.ThrowsAsync<AVException>(async () => await a.Save());
+        }
+
+        [Test]
+        public void IndirectCircleReference() {
+            AVObject a = new AVObject("A");
+            AVObject b = new AVObject("B");
+            AVObject c = new AVObject("C");
+            a["b"] = b;
+            b["c"] = c;
+            c["a"] = a;
+
+            Assert.ThrowsAsync<AVException>(async () => await a.Save());
+        }
+
+        [Test]
+        public void SimpleCollectionPointerCircleReference() {
+            AVObject a = new AVObject("A");
+            AVObject b = new AVObject("B");
+            a["children"] = new List<object> { 1, b };
+            b["children"] = new Dictionary<string, object> {
+                { "c", a }
+            };
+
+            Assert.ThrowsAsync<AVException>(async () => await a.Save());
+        }
+
+        [Test]
+        public void IndirectCollectionPointerCircleReference() {
+            AVObject a = new AVObject("A");
+            AVObject b = new AVObject("B");
+            AVObject c = new AVObject("C");
+
+            a["children"] = new List<object> { 1, b };
+            b["children"] = new List<object> { 2, c };
+            c["children"] = new Dictionary<string, object> {
+                { "c", a }
+            };
+
+            Assert.ThrowsAsync<AVException>(async () => await a.Save());
+        }
     }
 }

Storage/Storage.Test/Utils.cs

@@ -1,5 +1,6 @@
 using System;
 using LeanCloud;
+using LeanCloud.Common;
 using NUnit.Framework;
 
 namespace LeanCloud.Test {
@@ -47,5 +48,22 @@ namespace LeanCloud.Test {
             AVClient.UseMasterKey = !string.IsNullOrEmpty(masterKey);
             AVClient.HttpLog(TestContext.Out.WriteLine);
         }
+
+        internal static void Print(LogLevel level, string info) {
+            switch (level) {
+                case LogLevel.Debug:
+                    TestContext.Out.WriteLine($"[DEBUG] {info}");
+                    break;
+                case LogLevel.Warn:
+                    TestContext.Out.WriteLine($"[WARNING] {info}");
+                    break;
+                case LogLevel.Error:
+                    TestContext.Out.WriteLine($"[ERROR] {info}");
+                    break;
+                default:
+                    TestContext.Out.WriteLine(info);
+                    break;
+            }
+        }
     }
 }

Storage/Storage/Public/AVException.cs

@@ -264,6 +264,11 @@ namespace LeanCloud
             /// 按条件更新/删除失败
             /// </summary>
             NoEffectOnUpdatingOrDeleting = 305,
+
+            /// <summary>
+            /// 循环引用
+            /// </summary>
+            CircleReference = 400,
         }
 
         internal AVException(ErrorCode code, string message, Exception cause = null)

Storage/Storage/Public/AVObject.cs

@@ -1,6 +1,7 @@
 using LeanCloud.Storage.Internal;
 using LeanCloud.Utilities;
 using System;
+using System.Text;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Linq;
@@ -8,19 +9,49 @@ using System.Runtime.CompilerServices;
 using System.Threading;
 using System.Threading.Tasks;
 using System.Collections;
+using System.Collections.Concurrent;
 
 namespace LeanCloud {
     /// <summary>
     /// AVObject
     /// </summary>
     public class AVObject : IEnumerable<KeyValuePair<string, object>>, INotifyPropertyChanged, INotifyPropertyUpdated, INotifyCollectionPropertyUpdated {
+        internal class Batch {
+            internal HashSet<AVObject> Objects {
+                get; set;
+            }
+
+            public Batch() {
+                Objects = new HashSet<AVObject>();
+            }
+
+            public Batch(IEnumerable<AVObject> objects) : this() {
+                foreach (AVObject obj in objects) {
+                    Objects.Add(obj);
+                }
+            }
+
+            public override string ToString() {
+                StringBuilder sb = new StringBuilder();
+                sb.AppendLine("----------------------------");
+                foreach (AVObject obj in Objects) {
+                    sb.AppendLine(obj.ClassName);
+                }
+                sb.AppendLine("----------------------------");
+                return sb.ToString();
+            }
+        }
+
+
         private static readonly string AutoClassName = "_Automatic";
 
         internal readonly object mutex = new object();
 
         private readonly LinkedList<IDictionary<string, IAVFieldOperation>> operationSetQueue =
             new LinkedList<IDictionary<string, IAVFieldOperation>>();
-        private readonly IDictionary<string, object> estimatedData = new Dictionary<string, object>();
+
+        private readonly ConcurrentDictionary<string, IAVFieldOperation> operationDict = new ConcurrentDictionary<string, IAVFieldOperation>();
+        private readonly ConcurrentDictionary<string, object> estimatedData = new ConcurrentDictionary<string, object>();
 
         private static readonly ThreadLocal<bool> isCreatingPointer = new ThreadLocal<bool>(() => false);
 
@@ -210,7 +241,7 @@ namespace LeanCloud {
             this[GetFieldForPropertyName(ClassName, propertyName)] = value;
         }
 
-        /// <summary>
+        /// <summar、y>
         /// Gets a relation for a property based upon its associated AVFieldName attribute.
         /// </summary>
         /// <returns>The AVRelation for the property.</returns>
@@ -974,9 +1005,9 @@ string propertyName
                         if (oldValue != value) {
                             converdKeys.Add(key);
                         }
-                        estimatedData.Remove(key);
+                        estimatedData.TryRemove(key, out _);
                     }
-                    estimatedData.Add(item);
+                    estimatedData.TryAdd(item.Key, item.Value);
                 }
                 changedKeys = converdKeys;
                 foreach (var operations in operationSetQueue) {
@@ -1003,7 +1034,7 @@ string propertyName
                 if (newValue != AVDeleteOperation.DeleteToken) {
                     estimatedData[key] = newValue;
                 } else {
-                    estimatedData.Remove(key);
+                    estimatedData.TryRemove(key, out _);
                 }
 
                 IAVFieldOperation oldOperation;
@@ -1622,6 +1653,106 @@ string propertyName
         protected virtual void OnCollectionPropertyUpdated(string propertyName, NotifyCollectionUpdatedAction action, IEnumerable oldValues, IEnumerable newValues) {
             collectionUpdated?.Invoke(this, new CollectionPropertyUpdatedEventArgs(propertyName, action, oldValues, newValues));
         }
+
+
+
+
+
+
+
+
+
+        #region refactor
+
+        static bool HasCircleReference(object obj, HashSet<AVObject> parents) {
+            if (parents.Contains(obj)) {
+                return true;
+            }
+            IEnumerable deps = null;
+            if (obj is IList) {
+                deps = obj as IList;
+            } else if (obj is IDictionary) {
+                deps = (obj as IDictionary).Values;
+            } else if (obj is AVObject) {
+                deps = (obj as AVObject).estimatedData.Values;
+            }
+            HashSet<AVObject> depParent = new HashSet<AVObject>(parents);
+            if (obj is AVObject) {
+                depParent.Add(obj as AVObject);
+            }
+            if (deps != null) {
+                foreach (object dep in deps) {
+                    HashSet<AVObject> p = new HashSet<AVObject>(depParent);
+                    if (HasCircleReference(dep, p)) {
+                        return true;
+                    }
+                }
+            }
+            return false;
+        }
+
+        static Stack<Batch> BatchObjects(IEnumerable<AVObject> avObjects) {
+            Stack<Batch> batches = new Stack<Batch>();
+
+            IEnumerable<object> deps = avObjects;
+            do {
+                // 只添加本层依赖的 LCObject
+                IEnumerable<AVObject> depAVObjs = deps.OfType<AVObject>();
+                if (depAVObjs.Any()) {
+                    batches.Push(new Batch(depAVObjs));
+                }
+
+                HashSet<object> childSets = new HashSet<object>();
+                foreach (object dep in deps) {
+                    IEnumerable children = null;
+                    if (dep is IList) {
+                        children = dep as IList;
+                    } else if (dep is IDictionary) {
+                        children = (dep as IDictionary).Values;
+                    } else if (dep is AVObject && (dep as AVObject).ObjectId == null) {
+                        // 如果依赖是 AVObject 类型并且还没有保存过，则应该遍历其依赖
+                        children = (dep as AVObject).estimatedData.Values;
+                    }
+                    if (children != null) {
+                        foreach (object child in children) {
+                            childSets.Add(child);
+                        }
+                    }
+                }
+                deps = childSets;
+            } while (deps != null && deps.Any());
+
+            return batches;
+        }
+
+        public virtual async Task Save() {
+            if (HasCircleReference(this, new HashSet<AVObject>())) {
+                throw new AVException(AVException.ErrorCode.CircleReference, "Found a circle dependency when save");
+            }
+            Stack<Batch> batches = BatchObjects(new List<AVObject> { this });
+            while (batches.Any()) {
+                Batch batch = batches.Pop();
+                IList<AVObject> dirtyObjects = batch.Objects.Where(o => o.IsDirty).ToList();
+                IList<IObjectState> states = (from item in dirtyObjects
+                                             select item.state).ToList();
+                IList<IDictionary<string, IAVFieldOperation>> operationList = (from item in dirtyObjects
+                                                                               select item.StartSave()).ToList();
+                var serverStates = await ObjectController.SaveAllAsync(states, operationList, CancellationToken.None);
+
+                try {
+                    foreach (var pair in dirtyObjects.Zip(serverStates, (item, state) => new { item, state })) {
+                        pair.item.HandleSave(pair.state);
+                    }
+                } catch (Exception e) {
+                    foreach (var pair in dirtyObjects.Zip(operationList, (item, ops) => new { item, ops })) {
+                        pair.item.HandleFailedSave(pair.ops);
+                    }
+                    throw e;
+                }
+            }
+        }
+
+        #endregion
     }
 
     public interface INotifyPropertyUpdated {

Test/Common.Test/AppRouterTest.cs

@@ -1,9 +1,10 @@
+using System;
 using System.Threading.Tasks;
 using NUnit.Framework;
 using LeanCloud.Common;
 
 namespace Common.Test {
-    public class Tests {
+    public class AppRouterTest {
         static void Print(LogLevel level, string info) {
             switch (level) {
                 case LogLevel.Debug:
@@ -23,23 +24,43 @@ namespace Common.Test {
 
         [SetUp]
         public void SetUp() {
-            TestContext.Out.WriteLine("Set up");
             Logger.LogDelegate += Print;
         }
 
         [TearDown]
         public void TearDown() {
-            TestContext.Out.WriteLine("Tear down");
             Logger.LogDelegate -= Print;
         }
 
         [Test]
-        public async Task AppRouter() {
-            var appRouter = new AppRouterController();
-            for (int i = 0; i < 100; i++) {
-                var state = await appRouter.Get("BMYV4RKSTwo8WSqt8q9ezcWF-gzGzoHsz");
-                TestContext.Out.WriteLine(state.ApiServer);
-            }
+        public void ChineseApp() {
+            Exception e = Assert.Catch(() => {
+                string appId = "BMYV4RKSTwo8WSqt8q9ezcWF-gzGzoHsz";
+                AppRouterController appRouter = new AppRouterController(appId, null);
+                TestContext.WriteLine("init done");
+            });
+            TestContext.WriteLine(e.Message);
+        }
+
+        [Test]
+        public async Task ChineseAppWithDomain() {
+            string appId = "BMYV4RKSTwo8WSqt8q9ezcWF-gzGzoHsz";
+            string server = "https://bmyv4rks.lc-cn-n1-shared.com";
+            AppRouterController appRouterController = new AppRouterController(appId, server);
+            AppRouter appRouterState = await appRouterController.Get();
+            Assert.AreEqual(appRouterState.ApiServer, server);
+            Assert.AreEqual(appRouterState.EngineServer, server);
+            Assert.AreEqual(appRouterState.PushServer, server);
+            Assert.AreEqual(appRouterState.RTMServer, server);
+            Assert.AreEqual(appRouterState.StatsServer, server);
+            Assert.AreEqual(appRouterState.PlayServer, server);
+        }
+
+        [Test]
+        public void InternationalApp() {
+            string appId = "BMYV4RKSTwo8WSqt8q9ezcWF-MdYXbMMI";
+            _ = new AppRouterController(appId, null);
+            TestContext.WriteLine("International app init done");
         }
     }
 }

Test/Common.Test/Common.Test.csproj

@@ -4,6 +4,7 @@
     <TargetFramework>netcoreapp3.0</TargetFramework>
 
     <IsPackable>false</IsPackable>
+    <ReleaseVersion>0.1.0</ReleaseVersion>
   </PropertyGroup>
 
   <ItemGroup>

Test/Common.Test/Test.cs

@@ -1,7 +1,73 @@
 using System;
+using System.Linq;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.Concurrent;
+using System.Threading.Tasks;
+using NUnit.Framework;
+
 namespace Common.Test {
     public class Test {
-        public Test() {
+        [Test]
+        public async Task AsyncFor() {
+            for (int i = 0; i < 5; i++) {
+                await Task.Delay(1000);
+                TestContext.WriteLine($"{i} done at {DateTimeOffset.UtcNow}");
+            }
+        }
+
+        [Test]
+        public void ConcurrentCollection() {
+            List<int> list = new List<int>();
+            for (int i = 0; i < 1000; i++) {
+                Task.Run(() => {
+                    list.Add(i);
+                });
+            }
+            TestContext.WriteLine($"{list.Count}");
+
+            ConcurrentQueue<int> queue = new ConcurrentQueue<int>();
+            for (int i = 0; i < 1000; i++) {
+                Task.Run(() => {
+                    queue.Enqueue(i);
+                });
+            }
+            TestContext.WriteLine($"{queue.Count}");
+        }
+
+        [Test]
+        public void ObjectType() {
+            List<object> list = new List<object> { 1, "hello", 2, "world" };
+            TestContext.WriteLine(list is IList);
+            object[] objs = { 1, "hi", 3 };
+            TestContext.WriteLine(objs is IList);
+            List<object> subList = list.OfType<string>().ToList<object>();
+            foreach (object obj in subList) {
+                TestContext.WriteLine(obj);
+            }
+        }
+
+        [Test]
+        public void CollectionExcept() {
+            List<int> list1 = new List<int> { 1, 2, 3, 4, 5 };
+            List<int> list2 = new List<int> { 4, 5, 6 };
+            IEnumerable<int> deltaList = list1.Except(list2).ToList();
+            foreach (int delta in deltaList) {
+                TestContext.WriteLine(delta);
+            }
+
+            Dictionary<string, object> dict1 = new Dictionary<string, object> {
+                { "a", 1 },
+                { "b", 2 }
+            };
+            Dictionary<string, object> dict2 = new Dictionary<string, object> {
+                { "b", 2 },
+                { "c", 3 }
+            };
+            IEnumerable<KeyValuePair<string, object>> deltaDict = dict1.Except(dict2);
+            foreach (KeyValuePair<string, object> delta in deltaDict) {
+                TestContext.WriteLine($"{delta.Key} : {delta.Value}");
+            }
         }
     }
 }

csharp-sdk.sln

@@ -31,12 +31,12 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Storage", "Storage\Storage\
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RTM", "RTM\RTM\RTM.csproj", "{D4A30F70-AAED-415D-B940-023B3D7241EE}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Common", "Common\Common.csproj", "{14EC150A-EF90-4E0B-B6D7-C2CF1945F6E5}"
-EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Test", "Test", "{C827DA2F-6AB4-48D8-AB5B-6DAB925F8933}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Common.Test", "Test\Common.Test\Common.Test.csproj", "{4DF4E0F4-1013-477F-ADA6-BFAFD9312335}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Common", "Common\Common.csproj", "{758DE75D-37D7-4392-B564-9484348B505C}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -87,14 +87,14 @@ Global
 		{D4A30F70-AAED-415D-B940-023B3D7241EE}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{D4A30F70-AAED-415D-B940-023B3D7241EE}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{D4A30F70-AAED-415D-B940-023B3D7241EE}.Release|Any CPU.Build.0 = Release|Any CPU
-		{14EC150A-EF90-4E0B-B6D7-C2CF1945F6E5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{14EC150A-EF90-4E0B-B6D7-C2CF1945F6E5}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{14EC150A-EF90-4E0B-B6D7-C2CF1945F6E5}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{14EC150A-EF90-4E0B-B6D7-C2CF1945F6E5}.Release|Any CPU.Build.0 = Release|Any CPU
 		{4DF4E0F4-1013-477F-ADA6-BFAFD9312335}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{4DF4E0F4-1013-477F-ADA6-BFAFD9312335}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{4DF4E0F4-1013-477F-ADA6-BFAFD9312335}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{4DF4E0F4-1013-477F-ADA6-BFAFD9312335}.Release|Any CPU.Build.0 = Release|Any CPU
+		{758DE75D-37D7-4392-B564-9484348B505C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{758DE75D-37D7-4392-B564-9484348B505C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{758DE75D-37D7-4392-B564-9484348B505C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{758DE75D-37D7-4392-B564-9484348B505C}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
 		{659D19F0-9A40-42C0-886C-555E64F16848} = {CD6B6669-1A56-437A-932E-BCE7F5D4CD18}
@@ -105,9 +105,7 @@ Global
 		{EA1C601E-D853-41F7-B9EB-276CBF7D1FA5} = {5B895B7A-1F6E-40A5-8081-43B334D2C076}
 		{3251B4D8-D11A-4D90-8626-27FEE266B066} = {5B895B7A-1F6E-40A5-8081-43B334D2C076}
 		{F907012C-74DF-4575-AFE6-E8DAACC26D24} = {5B895B7A-1F6E-40A5-8081-43B334D2C076}
-		{BE05B492-78CD-47CA-9F48-C3E9B4813AFF} = {CD6B6669-1A56-437A-932E-BCE7F5D4CD18}
-		{59DA32A0-4CD3-424A-8584-D08B8D1E2B98} = {CD6B6669-1A56-437A-932E-BCE7F5D4CD18}
-		{D4A30F70-AAED-415D-B940-023B3D7241EE} = {64D8F9A1-BA44-459C-817C-788B4EBC0B9F}
+		{BE05B492-78CD-47CA-9F48-C3E9B4813AFF} = {C827DA2F-6AB4-48D8-AB5B-6DAB925F8933}
 		{4DF4E0F4-1013-477F-ADA6-BFAFD9312335} = {C827DA2F-6AB4-48D8-AB5B-6DAB925F8933}
 	EndGlobalSection
 	GlobalSection(MonoDevelopProperties) = preSolution