diff --git a/frameworks/libs/distributeddb/test/unittest/common/syncer/cloud/cloud_syncer_progress_manager_test.cpp b/frameworks/libs/distributeddb/test/unittest/common/syncer/cloud/cloud_syncer_progress_manager_test.cpp
index 59ca64d9ca1897048c3b5d6e928067eb2bd8d017..6a6c4754a42a34bc6e6563896b4b0ef8f1f07b3c 100644
--- a/frameworks/libs/distributeddb/test/unittest/common/syncer/cloud/cloud_syncer_progress_manager_test.cpp
+++ b/frameworks/libs/distributeddb/test/unittest/common/syncer/cloud/cloud_syncer_progress_manager_test.cpp
@@ -61,7 +61,8 @@ void CloudSyncerProgressManagerTest::TearDown(void)
 HWTEST_F(CloudSyncerProgressManagerTest, SyncerMgrCheck001, TestSize.Level1)
 {
     // Synchronization parameter checks
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -117,7 +118,8 @@ HWTEST_F(CloudSyncerProgressManagerTest, SyncerMgrCheck001, TestSize.Level1)
  */
 HWTEST_F(CloudSyncerProgressManagerTest, SyncerMgrCheck002, TestSize.Level1)
 {
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
     TestCloudSyncer cloudSyncer3(storageProxy);
@@ -172,7 +174,8 @@ HWTEST_F(CloudSyncerProgressManagerTest, SyncerMgrCheck002, TestSize.Level1)
  */
 HWTEST_F(CloudSyncerProgressManagerTest, SyncerMgrCheck003, TestSize.Level1)
 {
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer5(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -217,7 +220,8 @@ HWTEST_F(CloudSyncerProgressManagerTest, SyncerMgrCheck003, TestSize.Level1)
 HWTEST_F(CloudSyncerProgressManagerTest, SyncerMgrCheck004, TestSize.Level1)
 {
     // Check the number of queues
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -257,7 +261,8 @@ HWTEST_F(CloudSyncerProgressManagerTest, SyncerMgrCheck004, TestSize.Level1)
 HWTEST_F(CloudSyncerProgressManagerTest, SyncerMgrCheck005, TestSize.Level1)
 {
     // Single-threaded execution of tasks
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -289,7 +294,8 @@ HWTEST_F(CloudSyncerProgressManagerTest, SyncerMgrCheck005, TestSize.Level1)
  */
 // HWTEST_F(CloudSyncerProgressManagerTest, SyncerMgrCheck004, TestSize.Level1)
 // {
-//     MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+//     MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    // 
 //     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
 //     TestCloudSyncer cloudSyncer(storageProxy);
 //     MockICloudDB *idb = new MockICloudDB();
diff --git a/frameworks/libs/distributeddb/test/unittest/common/syncer/cloud/cloud_syncer_upload_test.cpp b/frameworks/libs/distributeddb/test/unittest/common/syncer/cloud/cloud_syncer_upload_test.cpp
index 924f6154815c2920acaf31aeba86a25fe2138897..862ec270719037580cca551deebe9cd72f257e37 100644
--- a/frameworks/libs/distributeddb/test/unittest/common/syncer/cloud/cloud_syncer_upload_test.cpp
+++ b/frameworks/libs/distributeddb/test/unittest/common/syncer/cloud/cloud_syncer_upload_test.cpp
@@ -74,7 +74,8 @@ void CloudSyncerUploadTest::TearDown(void)
  */
 HWTEST_F(CloudSyncerUploadTest, UploadModeCheck001, TestSize.Level1)
 {
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -131,7 +132,8 @@ HWTEST_F(CloudSyncerUploadTest, UploadModeCheck001, TestSize.Level1)
  */
 HWTEST_F(CloudSyncerUploadTest, UploadModeCheck002, TestSize.Level1)
 {
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -166,7 +168,8 @@ HWTEST_F(CloudSyncerUploadTest, UploadModeCheck002, TestSize.Level1)
  */
 HWTEST_F(CloudSyncerUploadTest, UploadModeCheck003, TestSize.Level1)
 {
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -233,7 +236,8 @@ HWTEST_F(CloudSyncerUploadTest, UploadModeCheck003, TestSize.Level1)
  */
 HWTEST_F(CloudSyncerUploadTest, UploadModeCheck004, TestSize.Level1)
 {
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -292,7 +296,8 @@ HWTEST_F(CloudSyncerUploadTest, UploadModeCheck004, TestSize.Level1)
  */
 HWTEST_F(CloudSyncerUploadTest, UploadModeCheck005, TestSize.Level1)
 {
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -339,7 +344,8 @@ HWTEST_F(CloudSyncerUploadTest, UploadModeCheck005, TestSize.Level1)
  */
 HWTEST_F(CloudSyncerUploadTest, UploadModeCheck006, TestSize.Level1)
 {
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -394,7 +400,8 @@ HWTEST_F(CloudSyncerUploadTest, UploadModeCheck006, TestSize.Level1)
  */
 HWTEST_F(CloudSyncerUploadTest, UploadModeCheck007, TestSize.Level1)
 {
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -460,7 +467,8 @@ HWTEST_F(CloudSyncerUploadTest, UploadModeCheck007, TestSize.Level1)
  */
 HWTEST_F(CloudSyncerUploadTest, UploadModeCheck008, TestSize.Level1)
 {
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -519,7 +527,8 @@ HWTEST_F(CloudSyncerUploadTest, UploadModeCheck008, TestSize.Level1)
 HWTEST_F(CloudSyncerUploadTest, UploadModeCheck009, TestSize.Level1)
 {
     // ClouSyncData format is ok
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -582,7 +591,8 @@ HWTEST_F(CloudSyncerUploadTest, UploadModeCheck009, TestSize.Level1)
 HWTEST_F(CloudSyncerUploadTest, UploadModeCheck017, TestSize.Level1)
 {
     // ClouSyncData format is ok
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -632,7 +642,8 @@ HWTEST_F(CloudSyncerUploadTest, UploadModeCheck017, TestSize.Level1)
 HWTEST_F(CloudSyncerUploadTest, UploadModeCheck010, TestSize.Level1)
 {
     // insert has data, update has data, delete has data (check whether it is running normally and info count)
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -691,7 +702,8 @@ HWTEST_F(CloudSyncerUploadTest, UploadModeCheck010, TestSize.Level1)
  */
 HWTEST_F(CloudSyncerUploadTest, UploadModeCheck011, TestSize.Level1)
 {
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -753,7 +765,8 @@ HWTEST_F(CloudSyncerUploadTest, UploadModeCheck011, TestSize.Level1)
  */
 HWTEST_F(CloudSyncerUploadTest, UploadModeCheck012, TestSize.Level1)
 {
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -816,7 +829,8 @@ HWTEST_F(CloudSyncerUploadTest, UploadModeCheck012, TestSize.Level1)
 HWTEST_F(CloudSyncerUploadTest, UploadModeCheck013, TestSize.Level1)
 {
     // batch api all success.
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -879,7 +893,8 @@ HWTEST_F(CloudSyncerUploadTest, UploadModeCheck013, TestSize.Level1)
  */
 HWTEST_F(CloudSyncerUploadTest, UploadModeCheck014, TestSize.Level1)
 {
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer2(storageProxy);
     std::shared_ptr<MockICloudDB> idb2 = std::make_shared<MockICloudDB>();
@@ -937,7 +952,8 @@ HWTEST_F(CloudSyncerUploadTest, UploadModeCheck014, TestSize.Level1)
  */
 HWTEST_F(CloudSyncerUploadTest, UploadModeCheck015, TestSize.Level1)
 {
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer3(storageProxy);
     std::shared_ptr<MockICloudDB> idb3 = std::make_shared<MockICloudDB>();
@@ -1003,7 +1019,8 @@ HWTEST_F(CloudSyncerUploadTest, UploadModeCheck015, TestSize.Level1)
 HWTEST_F(CloudSyncerUploadTest, UploadModeCheck016, TestSize.Level1)
 {
     // update water level successful
-    MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
     TestCloudSyncer cloudSyncer(storageProxy);
     std::shared_ptr<MockICloudDB> idb = std::make_shared<MockICloudDB>();
@@ -1070,7 +1087,8 @@ HWTEST_F(CloudSyncerUploadTest, UploadModeCheck016, TestSize.Level1)
  */
 // HWTEST_F(CloudSyncerUploadTest, UploadModeCheck016, TestSize.Level1)
 // {
-//     MockICloudSyncStorageInterface *iCloud = new MockICloudSyncStorageInterface();
+//     MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
 //     std::shared_ptr<TestStorageProxy> storageProxy = std::make_shared<TestStorageProxy>(iCloud);
 //     TestCloudSyncer cloudSyncer(storageProxy);
 //     MockICloudDB *idb = new MockICloudDB();
diff --git a/frameworks/libs/distributeddb/test/unittest/common/syncer/cloud/distributeddb_cloud_db_proxy_test.cpp b/frameworks/libs/distributeddb/test/unittest/common/syncer/cloud/distributeddb_cloud_db_proxy_test.cpp
index d89b104e670822d4776564688f3c63eb00564fd4..7f47194aa32531dc3e5d9acc33563b655786e843 100644
--- a/frameworks/libs/distributeddb/test/unittest/common/syncer/cloud/distributeddb_cloud_db_proxy_test.cpp
+++ b/frameworks/libs/distributeddb/test/unittest/common/syncer/cloud/distributeddb_cloud_db_proxy_test.cpp
@@ -278,8 +278,9 @@ HWTEST_F(DistributedDBCloudDBProxyTest, CloudDBProxyTest004, TestSize.Level3)
      * @tc.steps: step1. set cloud db to proxy and sleep 5s when download
      * @tc.expected: step1. E_OK
      */
-    auto iCloud = std::make_shared<MockICloudSyncStorageInterface>();
-    auto cloudSyncer = new(std::nothrow) VirtualCloudSyncer(StorageProxy::GetCloudDb(iCloud.get()));
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    std::shared_ptr<StorageProxy> storageProxy1 = std::make_shared<StorageProxy>(iCloud);
+    auto cloudSyncer = new(std::nothrow) VirtualCloudSyncer(storageProxy1);
     EXPECT_CALL(*iCloud, StartTransaction).WillRepeatedly(testing::Return(E_OK));
     EXPECT_CALL(*iCloud, Commit).WillRepeatedly(testing::Return(E_OK));
     ASSERT_NE(cloudSyncer, nullptr);
@@ -325,6 +326,7 @@ HWTEST_F(DistributedDBCloudDBProxyTest, CloudDBProxyTest004, TestSize.Level3)
     virtualCloudDb_->ClearHeartbeatCount();
     cloudSyncer->Close();
     RefObject::KillAndDecObjRef(cloudSyncer);
+    delete iCloud;
 }
 
 /**
@@ -340,8 +342,10 @@ HWTEST_F(DistributedDBCloudDBProxyTest, CloudDBProxyTest005, TestSize.Level0)
      * @tc.steps: step1. set cloud db to proxy and sleep 5s when download
      * @tc.expected: step1. E_OK
      */
-    auto iCloud = std::make_shared<MockICloudSyncStorageInterface>();
-    auto cloudSyncer = new(std::nothrow) VirtualCloudSyncer(StorageProxy::GetCloudDb(iCloud.get()));
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
+    std::shared_ptr<StorageProxy> storageProxy1 = std::make_shared<StorageProxy>(iCloud);
+    auto cloudSyncer = new(std::nothrow) VirtualCloudSyncer(storageProxy1);
     EXPECT_CALL(*iCloud, StartTransaction).WillRepeatedly(testing::Return(E_OK));
     EXPECT_CALL(*iCloud, Commit).WillRepeatedly(testing::Return(E_OK));
     ASSERT_NE(cloudSyncer, nullptr);
@@ -362,6 +366,7 @@ HWTEST_F(DistributedDBCloudDBProxyTest, CloudDBProxyTest005, TestSize.Level0)
     virtualCloudDb_->ClearHeartbeatCount();
     cloudSyncer->Close();
     RefObject::KillAndDecObjRef(cloudSyncer);
+    delete iCloud;
 }
 
 /**
@@ -377,8 +382,10 @@ HWTEST_F(DistributedDBCloudDBProxyTest, CloudDBProxyTest006, TestSize.Level3)
      * @tc.steps: step1. set cloud db to proxy and sleep 5s when download
      * @tc.expected: step1. E_OK
      */
-    auto iCloud = std::make_shared<MockICloudSyncStorageInterface>();
-    auto cloudSyncer = new(std::nothrow) VirtualCloudSyncer(StorageProxy::GetCloudDb(iCloud.get()));
+    MockICloudSyncStorageInterface *iCloud = new(std::nothrow) MockICloudSyncStorageInterface();
+    
+    std::shared_ptr<StorageProxy> storageProxy1 = std::make_shared<StorageProxy>(iCloud);
+    auto cloudSyncer = new(std::nothrow) VirtualCloudSyncer(storageProxy1);
     EXPECT_CALL(*iCloud, StartTransaction).WillRepeatedly(testing::Return(E_OK));
     EXPECT_CALL(*iCloud, Commit).WillRepeatedly(testing::Return(E_OK));
     EXPECT_CALL(*iCloud, Rollback).WillRepeatedly(testing::Return(E_OK));
@@ -404,5 +411,6 @@ HWTEST_F(DistributedDBCloudDBProxyTest, CloudDBProxyTest006, TestSize.Level3)
     virtualCloudDb_->ClearHeartbeatCount();
     cloudSyncer->Close();
     RefObject::KillAndDecObjRef(cloudSyncer);
+    delete iCloud;
 }
 }
\ No newline at end of file
diff --git a/frameworks/libs/distributeddb/test/unittest/common/syncer/cloud/mock_icloud_sync_storage_interface.h b/frameworks/libs/distributeddb/test/unittest/common/syncer/cloud/mock_icloud_sync_storage_interface.h
index e2824fe098d0de370248a5ba7cfdf82d1f1d468f..2dc15df9bb32b636318801db196bfff8a8dd6af1 100644
--- a/frameworks/libs/distributeddb/test/unittest/common/syncer/cloud/mock_icloud_sync_storage_interface.h
+++ b/frameworks/libs/distributeddb/test/unittest/common/syncer/cloud/mock_icloud_sync_storage_interface.h
@@ -21,6 +21,7 @@
 namespace DistributedDB {
 class MockICloudSyncStorageInterface : public ICloudSyncStorageInterface {
 public:
+    MockICloudSyncStorageInterface() = default;
     MOCK_CONST_METHOD2(GetMetaData, int(const Key &, Value &));
     MOCK_METHOD2(PutMetaData, int(const Key &, const Value &));
     MOCK_METHOD1(ChkSchema, int(const TableName &));