diff --git a/Test/Storage.Test/ACLTest.cs b/Test/Storage.Test/ACLTest.cs
index 6eddc29..9614cd1 100644
--- a/Test/Storage.Test/ACLTest.cs
+++ b/Test/Storage.Test/ACLTest.cs
@@ -7,13 +7,13 @@ namespace LeanCloud.Test {
     public class ACLTest {
         [SetUp]
         public void SetUp() {
-            Logger.LogDelegate += Utils.Print;
+            LCLogger.LogDelegate += Utils.Print;
             LCApplication.Initialize("ikGGdRE2YcVOemAaRbgp1xGJ-gzGzoHsz", "NUKmuRbdAhg1vrb2wexYo1jo", "https://ikggdre2.lc-cn-n1-shared.com");
         }
 
         [TearDown]
         public void TearDown() {
-            Logger.LogDelegate -= Utils.Print;
+            LCLogger.LogDelegate -= Utils.Print;
         }
 
         [Test]
diff --git a/Test/Storage.Test/CloudTest.cs b/Test/Storage.Test/CloudTest.cs
index 0e699f1..71df58d 100644
--- a/Test/Storage.Test/CloudTest.cs
+++ b/Test/Storage.Test/CloudTest.cs
@@ -9,13 +9,13 @@ namespace LeanCloud.Test {
     public class CloudTest {
         [SetUp]
         public void SetUp() {
-            Logger.LogDelegate += Utils.Print;
+            LCLogger.LogDelegate += Utils.Print;
             LCApplication.Initialize("ikGGdRE2YcVOemAaRbgp1xGJ-gzGzoHsz", "NUKmuRbdAhg1vrb2wexYo1jo", "https://ikggdre2.lc-cn-n1-shared.com");
         }
 
         [TearDown]
         public void TearDown() {
-            Logger.LogDelegate -= Utils.Print;
+            LCLogger.LogDelegate -= Utils.Print;
         }
 
         [Test]
diff --git a/Test/Storage.Test/FileTest.cs b/Test/Storage.Test/FileTest.cs
index 48a2b38..19852da 100644
--- a/Test/Storage.Test/FileTest.cs
+++ b/Test/Storage.Test/FileTest.cs
@@ -12,13 +12,13 @@ namespace LeanCloud.Test {
 
         [SetUp]
         public void SetUp() {
-            Logger.LogDelegate += Utils.Print;
+            LCLogger.LogDelegate += Utils.Print;
             LCApplication.Initialize("ikGGdRE2YcVOemAaRbgp1xGJ-gzGzoHsz", "NUKmuRbdAhg1vrb2wexYo1jo", "https://ikggdre2.lc-cn-n1-shared.com");
         }
 
         [TearDown]
         public void TearDown() {
-            Logger.LogDelegate -= Utils.Print;
+            LCLogger.LogDelegate -= Utils.Print;
         }
 
         [Test]
diff --git a/Test/Storage.Test/ObjectTest.cs b/Test/Storage.Test/ObjectTest.cs
index ab6e22f..81bcf54 100644
--- a/Test/Storage.Test/ObjectTest.cs
+++ b/Test/Storage.Test/ObjectTest.cs
@@ -9,13 +9,13 @@ namespace LeanCloud.Test {
     public class ObjectTest {
         [SetUp]
         public void SetUp() {
-            Logger.LogDelegate += Utils.Print;
+            LCLogger.LogDelegate += Utils.Print;
             LCApplication.Initialize("ikGGdRE2YcVOemAaRbgp1xGJ-gzGzoHsz", "NUKmuRbdAhg1vrb2wexYo1jo", "https://ikggdre2.lc-cn-n1-shared.com");
         }
 
         [TearDown]
         public void TearDown() {
-            Logger.LogDelegate -= Utils.Print;
+            LCLogger.LogDelegate -= Utils.Print;
         }
 
         [Test]
diff --git a/Test/Storage.Test/OperationTest.cs b/Test/Storage.Test/OperationTest.cs
index 1e2f277..5e70100 100644
--- a/Test/Storage.Test/OperationTest.cs
+++ b/Test/Storage.Test/OperationTest.cs
@@ -8,13 +8,13 @@ namespace LeanCloud.Test {
     public class OperationTest {
         [SetUp]
         public void SetUp() {
-            Logger.LogDelegate += Utils.Print;
+            LCLogger.LogDelegate += Utils.Print;
             LCApplication.Initialize("ikGGdRE2YcVOemAaRbgp1xGJ-gzGzoHsz", "NUKmuRbdAhg1vrb2wexYo1jo", "https://ikggdre2.lc-cn-n1-shared.com");
         }
 
         [TearDown]
         public void TearDown() {
-            Logger.LogDelegate -= Utils.Print;
+            LCLogger.LogDelegate -= Utils.Print;
         }
 
         [Test]
diff --git a/Test/Storage.Test/QueryTest.cs b/Test/Storage.Test/QueryTest.cs
index 6b5c705..de6041e 100644
--- a/Test/Storage.Test/QueryTest.cs
+++ b/Test/Storage.Test/QueryTest.cs
@@ -8,13 +8,13 @@ namespace LeanCloud.Test {
     public class QueryTest {
         [SetUp]
         public void SetUp() {
-            Logger.LogDelegate += Utils.Print;
+            LCLogger.LogDelegate += Utils.Print;
             LCApplication.Initialize("ikGGdRE2YcVOemAaRbgp1xGJ-gzGzoHsz", "NUKmuRbdAhg1vrb2wexYo1jo", "https://ikggdre2.lc-cn-n1-shared.com");
         }
 
         [TearDown]
         public void TearDown() {
-            Logger.LogDelegate -= Utils.Print;
+            LCLogger.LogDelegate -= Utils.Print;
         }
 
         [Test]
diff --git a/Test/Storage.Test/RelationTest.cs b/Test/Storage.Test/RelationTest.cs
index c060c40..f66c1e2 100644
--- a/Test/Storage.Test/RelationTest.cs
+++ b/Test/Storage.Test/RelationTest.cs
@@ -9,13 +9,13 @@ namespace LeanCloud.Test {
     public class RelationTest {
         [SetUp]
         public void SetUp() {
-            Logger.LogDelegate += Utils.Print;
+            LCLogger.LogDelegate += Utils.Print;
             LCApplication.Initialize("ikGGdRE2YcVOemAaRbgp1xGJ-gzGzoHsz", "NUKmuRbdAhg1vrb2wexYo1jo", "https://ikggdre2.lc-cn-n1-shared.com");
         }
 
         [TearDown]
         public void TearDown() {
-            Logger.LogDelegate -= Utils.Print;
+            LCLogger.LogDelegate -= Utils.Print;
         }
 
         [Test]
diff --git a/Test/Storage.Test/RoleTest.cs b/Test/Storage.Test/RoleTest.cs
index 9360afe..49c0179 100644
--- a/Test/Storage.Test/RoleTest.cs
+++ b/Test/Storage.Test/RoleTest.cs
@@ -11,13 +11,13 @@ namespace LeanCloud.Test {
     public class RoleTest {
         [SetUp]
         public void SetUp() {
-            Logger.LogDelegate += Utils.Print;
+            LCLogger.LogDelegate += Utils.Print;
             LCApplication.Initialize("ikGGdRE2YcVOemAaRbgp1xGJ-gzGzoHsz", "NUKmuRbdAhg1vrb2wexYo1jo", "https://ikggdre2.lc-cn-n1-shared.com");
         }
 
         [TearDown]
         public void TearDown() {
-            Logger.LogDelegate -= Utils.Print;
+            LCLogger.LogDelegate -= Utils.Print;
         }
 
         [Test]
diff --git a/Test/Storage.Test/SubClassTest.cs b/Test/Storage.Test/SubClassTest.cs
index 663247a..a06595f 100644
--- a/Test/Storage.Test/SubClassTest.cs
+++ b/Test/Storage.Test/SubClassTest.cs
@@ -39,13 +39,13 @@ namespace LeanCloud.Test {
     public class SubClassTest {
         [SetUp]
         public void SetUp() {
-            Logger.LogDelegate += Utils.Print;
+            LCLogger.LogDelegate += Utils.Print;
             LCApplication.Initialize("ikGGdRE2YcVOemAaRbgp1xGJ-gzGzoHsz", "NUKmuRbdAhg1vrb2wexYo1jo", "https://ikggdre2.lc-cn-n1-shared.com");
         }
 
         [TearDown]
         public void TearDown() {
-            Logger.LogDelegate -= Utils.Print;
+            LCLogger.LogDelegate -= Utils.Print;
         }
 
         [Test]
diff --git a/Test/Storage.Test/UserTest.cs b/Test/Storage.Test/UserTest.cs
index 9f6d9e3..3af8c44 100644
--- a/Test/Storage.Test/UserTest.cs
+++ b/Test/Storage.Test/UserTest.cs
@@ -9,13 +9,13 @@ namespace LeanCloud.Test {
     public class UserTest {
         [SetUp]
         public void SetUp() {
-            Logger.LogDelegate += Utils.Print;
+            LCLogger.LogDelegate += Utils.Print;
             LCApplication.Initialize("ikGGdRE2YcVOemAaRbgp1xGJ-gzGzoHsz", "NUKmuRbdAhg1vrb2wexYo1jo", "https://ikggdre2.lc-cn-n1-shared.com");
         }
 
         [TearDown]
         public void TearDown() {
-            Logger.LogDelegate -= Utils.Print;
+            LCLogger.LogDelegate -= Utils.Print;
         }
 
         [Test]
diff --git a/Test/Storage.Test/Utils.cs b/Test/Storage.Test/Utils.cs
index 739b4aa..91e0a9b 100644
--- a/Test/Storage.Test/Utils.cs
+++ b/Test/Storage.Test/Utils.cs
@@ -5,15 +5,15 @@ using NUnit.Framework;
 
 namespace LeanCloud.Test {
     public static class Utils {
-        internal static void Print(LogLevel level, string info) {
+        internal static void Print(LCLogLevel level, string info) {
             switch (level) {
-                case LogLevel.Debug:
+                case LCLogLevel.Debug:
                     TestContext.Out.WriteLine($"[DEBUG] {info}");
                     break;
-                case LogLevel.Warn:
+                case LCLogLevel.Warn:
                     TestContext.Out.WriteLine($"[WARNING] {info}");
                     break;
-                case LogLevel.Error:
+                case LCLogLevel.Error:
                     TestContext.Out.WriteLine($"[ERROR] {info}");
                     break;
                 default: