diff --git a/Storage/Storage.Test/ACLTest.cs b/Storage/Storage.Test/ACLTest.cs
new file mode 100644
index 0000000..5659687
--- /dev/null
+++ b/Storage/Storage.Test/ACLTest.cs
@@ -0,0 +1,54 @@
+using NUnit.Framework;
+using System.Threading.Tasks;
+using LeanCloud.Storage;
+
+namespace LeanCloud.Test {
+    public class ACLTest {
+        [SetUp]
+        public void SetUp() {
+            Logger.LogDelegate += Utils.Print;
+            LeanCloud.Initialize("ikGGdRE2YcVOemAaRbgp1xGJ-gzGzoHsz", "NUKmuRbdAhg1vrb2wexYo1jo", "https://ikggdre2.lc-cn-n1-shared.com");
+        }
+
+        [TearDown]
+        public void TearDown() {
+            Logger.LogDelegate -= Utils.Print;
+        }
+
+        [Test]
+        public async Task PrivateReadAndWrite() {
+            LCObject account = new LCObject("Account");
+            LCACL acl = new LCACL();
+            acl.PublicReadAccess = false;
+            acl.PublicWriteAccess = false;
+            account.ACL = acl;
+            account["balance"] = 1024;
+            await account.Save();
+            Assert.IsFalse(acl.PublicReadAccess);
+            Assert.IsFalse(acl.PublicWriteAccess);
+        }
+
+        [Test]
+        public async Task UserReadAndWrite() {
+            //await LCUser.Login('hello', 'world');
+            //LCObject account = new LCObject('Account');
+            //LCUser currentUser = await LCUser.getCurrent();
+            //LCACL acl = LCACL.createWithOwner(currentUser);
+            //account.acl = acl;
+            //account['balance'] = 512;
+            //await account.save();
+
+            //assert(acl.getUserReadAccess(currentUser) == true);
+            //assert(acl.getUserWriteAccess(currentUser) == true);
+
+            //LCQuery<LCObject> query = new LCQuery('Account');
+            //LCObject result = await query.get(account.objectId);
+            //print(result.objectId);
+            //assert(result.objectId != null);
+
+            //LCUser.logout();
+            //result = await query.get(account.objectId);
+            //assert(result == null);
+        }
+    }
+}
diff --git a/Storage/Storage.Test/QueryTest.cs b/Storage/Storage.Test/QueryTest.cs
index a661cf2..66dee5b 100644
--- a/Storage/Storage.Test/QueryTest.cs
+++ b/Storage/Storage.Test/QueryTest.cs
@@ -1,121 +1,267 @@
 using NUnit.Framework;
 using System.Collections.Generic;
 using System.Threading.Tasks;
-using System.Linq;
-using Newtonsoft.Json;
+using LeanCloud.Storage;
 
 namespace LeanCloud.Test {
     public class QueryTest {
         [SetUp]
         public void SetUp() {
-            Utils.InitNorthChina();
+            Logger.LogDelegate += Utils.Print;
+            LeanCloud.Initialize("ikGGdRE2YcVOemAaRbgp1xGJ-gzGzoHsz", "NUKmuRbdAhg1vrb2wexYo1jo", "https://ikggdre2.lc-cn-n1-shared.com");
+        }
+
+        [TearDown]
+        public void TearDown() {
+            Logger.LogDelegate -= Utils.Print;
         }
 
         [Test]
-        public async Task BasicQuery() {
-            var query = new AVQuery<AVObject>("Account");
-            query.WhereGreaterThanOrEqualTo("balance", 100);
-            query.WhereLessThanOrEqualTo("balance", 100);
-            var results = await query.FindAsync();
-            foreach (var result in results) {
-                TestContext.Out.WriteLine(result.ObjectId);
+        public async Task BaseQuery() {
+            LCQuery<LCObject> query = new LCQuery<LCObject>("Hello");
+            query.Limit(2);
+            List<LCObject> list = await query.Find();
+            TestContext.WriteLine(list.Count);
+            Assert.AreEqual(list.Count, 2);
+
+            foreach (LCObject item in list) {
+                Assert.NotNull(item.ClassName);
+                Assert.NotNull(item.ObjectId);
+                Assert.NotNull(item.CreatedAt);
+                Assert.NotNull(item.UpdatedAt);
+
+                TestContext.WriteLine(item.ClassName);
+                TestContext.WriteLine(item.ObjectId);
+                TestContext.WriteLine(item.CreatedAt);
+                TestContext.WriteLine(item.UpdatedAt);
+                TestContext.WriteLine(item["intValue"]);
+                TestContext.WriteLine(item["boolValue"]);
+                TestContext.WriteLine(item["stringValue"]);
             }
         }
 
         [Test]
         public async Task Count() {
-            var query = new AVQuery<AVObject>("Foo");
-            query.WhereEqualTo("content", "hello, world");
-            var count = await query.CountAsync();
-            Assert.Greater(count, 8);
+            LCQuery<LCObject> query = new LCQuery<LCObject>("Account");
+            query.WhereGreaterThan("balance", 200);
+            int count = await query.Count();
+            TestContext.WriteLine(count);
+            Assert.Greater(count, 0);
         }
 
         [Test]
-        public async Task Or() {
-            AVQuery<AVObject> q1 = new AVQuery<AVObject>("Foo");
-            q1.WhereEqualTo("content", "hello");
-            AVQuery<AVObject> q2 = new AVQuery<AVObject>("Foo");
-            q2.WhereEqualTo("content", "world");
-            AVQuery<AVObject> query = AVQuery<AVObject>.Or(new List<AVQuery<AVObject>> { q1, q2 });
-            IEnumerable<AVObject> results = await query.FindAsync();
-            foreach (AVObject result in results) {
-                TestContext.Out.WriteLine(result.ObjectId);
-            }
+        public async Task OrderBy() {
+            LCQuery<LCObject> query = new LCQuery<LCObject>("Account");
+            query.OrderBy("balance");
+            List<LCObject> results = await query.Find();
+            Assert.LessOrEqual((int)results[0]["balance"], (int)results[1]["balance"]);
+
+            query = new LCQuery<LCObject>("Account");
+            query.OrderByDescending("balance");
+            results = await query.Find();
+            Assert.GreaterOrEqual((int)results[0]["balance"], (int)results[1]["balance"]);
+        }
+
+        [Test]
+        public async Task Include() {
+            LCQuery<LCObject> query = new LCQuery<LCObject>("Hello");
+            query.Include("objectValue");
+            LCObject hello = await query.Get("5e0d55aedd3c13006a53cd87");
+            LCObject world = hello["objectValue"] as LCObject;
+            TestContext.WriteLine(world["content"]);
+            Assert.AreEqual(world["content"], "7788");
+        }
+
+        [Test]
+        public async Task Get() {
+            LCQuery<LCObject> query = new LCQuery<LCObject>("Account");
+            LCObject account = await query.Get("5e0d9f7fd4b56c008e5d048a");
+            Assert.AreEqual(account["balance"], 400);
+        }
+
+        [Test]
+        public async Task First() {
+            LCQuery<LCObject> query = new LCQuery<LCObject>("Account");
+            LCObject account = await query.First();
+            Assert.NotNull(account.ObjectId);
+        }
+
+        [Test]
+        public async Task GreaterQuery() {
+            LCQuery<LCObject> query = new LCQuery<LCObject>("Account");
+            query.WhereGreaterThan("balance", 200);
+            List<LCObject> list = await query.Find();
+            TestContext.WriteLine(list.Count);
+            Assert.Greater(list.Count, 0);
         }
 
         [Test]
         public async Task And() {
-            AVQuery<AVObject> q1 = new AVQuery<AVObject>("Foo");
-            q1.WhereContains("content", "hello");
-            AVQuery<AVObject> q2 = new AVQuery<AVObject>("Foo");
-            q2.WhereContains("content", "world");
-            AVQuery<AVObject> query = AVQuery<AVObject>.And(new List<AVQuery<AVObject>> { q1, q2 });
-            IEnumerable<AVObject> results = await query.FindAsync();
-            TestContext.Out.WriteLine($"Count: {results.Count()}");
-            foreach (AVObject result in results) {
-                TestContext.Out.WriteLine(result.ObjectId);
-            }
+            LCQuery<LCObject> q1 = new LCQuery<LCObject>("Account");
+            q1.WhereGreaterThan("balance", 100);
+            LCQuery<LCObject> q2 = new LCQuery<LCObject>("Account");
+            q2.WhereLessThan("balance", 500);
+            LCQuery<LCObject> query = LCQuery<LCObject>.And(new List<LCQuery<LCObject>> { q1, q2 });
+            List<LCObject> results = await query.Find();
+            TestContext.WriteLine(results.Count);
+            results.ForEach(item => {
+                int balance = (int)item["balance"];
+                Assert.IsTrue(balance >= 100 || balance <= 500);
+            });
         }
 
         [Test]
-        public async Task OrPro() {
-            AVQuery<AVObject> q1 = AVQuery<AVObject>.Or(new List<AVQuery<AVObject>> {
-                new AVQuery<AVObject>("Account").WhereEqualTo("balance", 100)
+        public async Task Or() {
+            LCQuery<LCObject> q1 = new LCQuery<LCObject>("Account");
+            q1.WhereLessThanOrEqualTo("balance", 100);
+            LCQuery<LCObject> q2 = new LCQuery<LCObject>("Account");
+            q2.WhereGreaterThanOrEqualTo("balance", 500);
+            LCQuery<LCObject> query = LCQuery<LCObject>.Or(new List<LCQuery<LCObject>> { q1, q2 });
+            List<LCObject> results = await query.Find();
+            TestContext.WriteLine(results.Count);
+            results.ForEach(item => {
+                int balance = (int)item["balance"];
+                Assert.IsTrue(balance <= 100 || balance >= 500);
             });
-            AVQuery<AVObject> q2 = AVQuery<AVObject>.Or(new List<AVQuery<AVObject>> {
-                new AVQuery<AVObject>("Account").WhereEqualTo("balance", 200)
-            });
-            AVQuery<AVObject> query = AVQuery<AVObject>.Or(new List<AVQuery<AVObject>> {
-                q1, q2
-            });
-            query.WhereEqualTo("balance", 100);
-            IEnumerable<AVObject> results = await query.FindAsync();
-            foreach (AVObject result in results) {
-                TestContext.Out.WriteLine(result.ObjectId);
-            }
         }
 
         [Test]
-        public async Task Related() {
-            AVObject todo = AVObject.CreateWithoutData("Todo", "5d71f798d5de2b006c0136bc");
-            AVQuery<AVObject> query = new AVQuery<AVObject>("Tag");
-            query.WhereRelatedTo(todo, "tags");
-            IEnumerable<AVObject> results = await query.FindAsync();
-            foreach (AVObject tag in results) {
-                TestContext.Out.WriteLine(tag.ObjectId);
-            }
+        public async Task WhereObjectEquals() {
+            LCQuery<LCObject> worldQuery = new LCQuery<LCObject>("World");
+            LCObject world = await worldQuery.Get("5e0d55ae21460d006a1ec931");
+            LCQuery<LCObject> helloQuery = new LCQuery<LCObject>("Hello");
+            helloQuery.WhereEqualTo("objectValue", world);
+            LCObject hello = await helloQuery.First();
+            TestContext.WriteLine(hello.ObjectId);
+            Assert.AreEqual(hello.ObjectId, "5e0d55aedd3c13006a53cd87");
         }
 
         [Test]
-        public void Where() {
-            AVQuery<AVObject> q1 = new AVQuery<AVObject>();
-            q1.WhereEqualTo("aa", "bb");
-            AVQuery<AVObject> q2 = new AVQuery<AVObject>();
-            q2.WhereEqualTo("cc", "dd");
-            q2.WhereEqualTo("ee", "ff");
-            List<AVQuery<AVObject>> queryList = new List<AVQuery<AVObject>> {
-                q1, q2
-            };
-            AVQuery<AVObject> query = AVQuery<AVObject>.Or(queryList);
-            IDictionary<string, object> obj = query.BuildWhere();
-            TestContext.Out.WriteLine(JsonConvert.SerializeObject(obj));
+        public async Task Exist() {
+            LCQuery<LCObject> query = new LCQuery<LCObject>("Account");
+            query.WhereExists("user");
+            List<LCObject> results = await query.Find();
+            results.ForEach(item => {
+                Assert.NotNull(item["user"]);
+            });
 
-            AVQuery<AVObject> q3 = new AVQuery<AVObject>();
-            q3.WhereEqualTo("xx", "yy");
-            IDictionary<string, object> q3Obj = q3.BuildWhere();
-            TestContext.Out.WriteLine(JsonConvert.SerializeObject(q3Obj));
+            query = new LCQuery<LCObject>("Account");
+            query.WhereDoesNotExist("user");
+            results = await query.Find();
+            results.ForEach(item => {
+                Assert.IsNull(item["user"]);
+            });
+        }
 
-            AVQuery<AVObject> q4 = new AVQuery<AVObject>();
-            q4.WhereEqualTo("aaa", "bbb");
-            q4.WhereEqualTo("ccc", "ddd");
-            IDictionary<string, object> q4Obj = q4.BuildWhere();
-            TestContext.Out.WriteLine(JsonConvert.SerializeObject(q4Obj));
+        [Test]
+        public async Task Select() {
+            LCQuery<LCObject> query = new LCQuery<LCObject>("Account");
+            query.Select("balance");
+            List<LCObject> results = await query.Find();
+            results.ForEach(item => {
+                Assert.NotNull(item["balance"]);
+                Assert.IsNull(item["user"]);
+            });
+        }
 
-            AVQuery<AVObject> q5 = new AVQuery<AVObject>();
-            q5.WhereEqualTo("aaa", "bbb");
-            q5.WhereEqualTo("aaa", "ccc");
-            IDictionary<string, object> q5Obj = q5.BuildWhere();
-            TestContext.Out.WriteLine(JsonConvert.SerializeObject(q5Obj));
+        [Test]
+        public async Task String() {
+            // Start
+            LCQuery<LCObject> query = new LCQuery<LCObject>("Hello");
+            query.WhereStartsWith("stringValue", "hello");
+            List<LCObject> results = await query.Find();
+            results.ForEach(item => {
+                string str = item["stringValue"] as string;
+                Assert.IsTrue(str.StartsWith("hello"));
+            });
+
+            // End
+            query = new LCQuery<LCObject>("Hello");
+            query.WhereEndsWith("stringValue", "world");
+            results = await query.Find();
+            results.ForEach(item => {
+                string str = item["stringValue"] as string;
+                Assert.IsTrue(str.EndsWith("world"));
+            });
+
+            // Contains
+            query = new LCQuery<LCObject>("Hello");
+            query.WhereContains("stringValue", ",");
+            results = await query.Find();
+            results.ForEach(item => {
+                string str = item["stringValue"] as string;
+                Assert.IsTrue(str.Contains(','));
+            });
+        }
+
+        [Test]
+        public async Task Array() {
+            // equal
+            LCQuery<LCObject> query = new LCQuery<LCObject>("Book");
+            query.WhereEqualTo("pages", 3);
+            List<LCObject>results = await query.Find();
+            results.ForEach(item => {
+                List<object> pages = item["pages"] as List<object>;
+                Assert.IsTrue(pages.Contains(3));
+            });
+
+            // contain all
+            List<int> containAlls = new List<int> { 1, 2, 3, 4, 5, 6, 7 };
+            query = new LCQuery<LCObject>("Book");
+            query.WhereContainsAll("pages", containAlls);
+            results = await query.Find();
+            results.ForEach(item => {
+                List<object> pages = item["pages"] as List<object>;
+                pages.ForEach(i => {
+                    Assert.IsTrue(pages.Contains(i));
+                });
+            });
+
+            // contain in
+            List<int> containIns = new List<int> { 4, 5, 6 };
+            query = new LCQuery<LCObject>("Book");
+            query.WhereContainedIn("pages", containIns);
+            results = await query.Find();
+            results.ForEach(item => {
+                List<object> pages = item["pages"] as List<object>;
+                bool f = false;
+                containIns.ForEach(i => {
+                    f |= pages.Contains(i);
+                });
+                Assert.IsTrue(f);
+            });
+
+            // size
+            query = new LCQuery<LCObject>("Book");
+            query.WhereSizeEqualTo("pages", 7);
+            results = await query.Find();
+            results.ForEach(item => {
+                List<object> pages = item["pages"] as List<object>;
+                Assert.AreEqual(pages.Count, 7);
+            });
+        }
+
+        [Test]
+        public async Task Geo() {
+            LCObject obj = new LCObject("Todo");
+            LCGeoPoint location = new LCGeoPoint(39.9, 116.4);
+            obj["location"] = location;
+            await obj.Save();
+
+            // near
+            LCQuery<LCObject> query = new LCQuery<LCObject>("Todo");
+            LCGeoPoint point = new LCGeoPoint(39.91, 116.41);
+            query.WhereNear("location", point);
+            List<LCObject> results = await query.Find();
+            Assert.Greater(results.Count, 0);
+
+            // in box
+            query = new LCQuery<LCObject>("Todo");
+            LCGeoPoint southwest = new LCGeoPoint(30, 115);
+            LCGeoPoint northeast = new LCGeoPoint(40, 118);
+            query.WhereWithinGeoBox("location", southwest, northeast);
+            results = await query.Find();
+            Assert.Greater(results.Count, 0);
         }
     }
 }
diff --git a/Storage/Storage/Internal/Http/LCHttpClient.cs b/Storage/Storage/Internal/Http/LCHttpClient.cs
index d5e1741..424a1b3 100644
--- a/Storage/Storage/Internal/Http/LCHttpClient.cs
+++ b/Storage/Storage/Internal/Http/LCHttpClient.cs
@@ -118,7 +118,7 @@ namespace LeanCloud.Storage.Internal.Http {
             try {
                 // 尝试获取 LeanCloud 返回错误信息
                 Dictionary<string, object> error = JsonConvert.DeserializeObject<Dictionary<string, object>>(resultString, new LeanCloudJsonConverter());
-                code = (int)(long)error["code"];
+                code = (int)error["code"];
                 message = error["error"].ToString();
             } catch (Exception e) {
                 Logger.Error(e.Message);
@@ -162,7 +162,7 @@ namespace LeanCloud.Storage.Internal.Http {
             try {
                 // 尝试获取 LeanCloud 返回错误信息
                 Dictionary<string, object> error = JsonConvert.DeserializeObject<Dictionary<string, object>>(resultString, new LeanCloudJsonConverter());
-                code = (int)(long)error["code"];
+                code = (int)error["code"];
                 message = error["error"].ToString();
             } catch (Exception e) {
                 Logger.Error(e.Message);
diff --git a/Storage/Storage/Internal_/Utilities/LeanCloudJsonConverter.cs b/Storage/Storage/Internal/Http/LeanCloudJsonConverter.cs
similarity index 83%
rename from Storage/Storage/Internal_/Utilities/LeanCloudJsonConverter.cs
rename to Storage/Storage/Internal/Http/LeanCloudJsonConverter.cs
index 0d17eab..ed5fd05 100644
--- a/Storage/Storage/Internal_/Utilities/LeanCloudJsonConverter.cs
+++ b/Storage/Storage/Internal/Http/LeanCloudJsonConverter.cs
@@ -23,6 +23,11 @@ namespace LeanCloud.Storage.Internal {
                 serializer.Populate(reader, arr);
                 return arr;
             }
+            if (reader.TokenType == JsonToken.Integer) {
+                if ((long)reader.Value < int.MaxValue) {
+                    return Convert.ToInt32(reader.Value);
+                }
+            }
 
             return serializer.Deserialize(reader);
         }
diff --git a/Storage/Storage/Internal/Query/LCCompositionalCondition.cs b/Storage/Storage/Internal/Query/LCCompositionalCondition.cs
index 79af22d..917b2bf 100644
--- a/Storage/Storage/Internal/Query/LCCompositionalCondition.cs
+++ b/Storage/Storage/Internal/Query/LCCompositionalCondition.cs
@@ -72,7 +72,7 @@ namespace LeanCloud.Storage.Internal.Query {
         }
 
         internal void WhereLessThan(string key, object value) {
-            AddOperation(key, "$lt$lt", value);
+            AddOperation(key, "$lt", value);
         }
 
         internal void WhereLessThanOrEqualTo(string key, object value) {
diff --git a/Storage/Storage/LCObject.cs b/Storage/Storage/LCObject.cs
index d6c74c9..059ab0f 100644
--- a/Storage/Storage/LCObject.cs
+++ b/Storage/Storage/LCObject.cs
@@ -57,6 +57,8 @@ namespace LeanCloud.Storage {
         public LCACL ACL {
             get {
                 return this["ACL"] as LCACL ;
+            } set {
+                this["ACL"] = value;
             }
         }