diff --git a/common/include/input_hub.cpp b/common/include/input_hub.cpp
index 8c1b0ffcb7aa113e6273c582f82c8d7d8ed70fe9..6ef5d72329340eda9c2bd94ed99189c4cbbcb73e 100644
--- a/common/include/input_hub.cpp
+++ b/common/include/input_hub.cpp
@@ -42,6 +42,7 @@ namespace DistributedInput {
 namespace {
 const uint32_t SLEEP_TIME_US = 100 * 1000;
 const std::string MOUSE_NODE_KEY = "mouse";
+const int32_t SPACE_LENGTH = 1024;
 }
 
 InputHub::InputHub(bool isPluginMonitor) : epollFd_(-1), iNotifyFd_(-1), inputWd_(-1),
@@ -914,8 +915,7 @@ int32_t InputHub::QueryLocalTouchScreenInfo(int fd, std::unique_ptr<Device> &dev
 
 std::string InputHub::StringPrintf(const char *format, ...) const
 {
-    static const int kSpaceLength = 1024;
-    char space[kSpaceLength];
+    char space[SPACE_LENGTH] = {0};
 
     va_list ap;
     va_start(ap, format);
diff --git a/common/include/test/whitelistunittest/white_list_test.h b/common/include/test/whitelistunittest/white_list_test.h
index 029aaedee301148cf3767ed8ed09a840eed6f6ef..eca804d931ce015fcee9a0df16992627e5246626 100644
--- a/common/include/test/whitelistunittest/white_list_test.h
+++ b/common/include/test/whitelistunittest/white_list_test.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
+ * Copyright (c) 2021-2024 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -25,8 +25,8 @@ class WhiteListTest : public testing::Test {
 public:
     static void SetUpTestCase();
     static void TearDownTestCase();
-    virtual void SetUp() override;
-    virtual void TearDown() override;
+    void SetUp() override;
+    void TearDown() override;
 };
 } // namespace DistributedInput
 } // namespace DistributedHardware
diff --git a/interfaces/inner_kits/test/unittest/distributed_input_inner_test.h b/interfaces/inner_kits/test/unittest/distributed_input_inner_test.h
index 206089754f93a9731447a64351dabe0cbbd54e15..f23ce61105ef0c2433078f4576730da68010ddca 100644
--- a/interfaces/inner_kits/test/unittest/distributed_input_inner_test.h
+++ b/interfaces/inner_kits/test/unittest/distributed_input_inner_test.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2023 Huawei Device Co., Ltd.
+ * Copyright (c) 2021-2024 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -46,8 +46,8 @@ class DistributedInputInnerTest : public testing::Test {
 public:
     static void SetUpTestCase();
     static void TearDownTestCase();
-    virtual void SetUp() override;
-    virtual void TearDown() override;
+    void SetUp() override;
+    void TearDown() override;
     int CheckSourceProxy() const;
     int CheckSinkProxy() const;
 
diff --git a/services/sink/inputcollector/test/sinkcollectorunittest/distributed_input_collector_test.h b/services/sink/inputcollector/test/sinkcollectorunittest/distributed_input_collector_test.h
index e48f8790f5165dde9b00655b5152e317a2e1ac74..ed3dff1d5b9283de249d18c2b7142cf3fa78d898 100644
--- a/services/sink/inputcollector/test/sinkcollectorunittest/distributed_input_collector_test.h
+++ b/services/sink/inputcollector/test/sinkcollectorunittest/distributed_input_collector_test.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Copyright (c) 2022-2024 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -19,9 +19,7 @@
 #include <gtest/gtest.h>
 
 #include "constants_dinput.h"
-#define private public
 #include "distributed_input_collector.h"
-#undef private
 
 namespace OHOS {
 namespace DistributedHardware {
@@ -30,8 +28,8 @@ class DistributedInputCollectorTest : public testing::Test {
 public:
     static void SetUpTestCase();
     static void TearDownTestCase();
-    virtual void SetUp() override;
-    virtual void TearDown() override;
+    void SetUp() override;
+    void TearDown() override;
 
     class DInputSinkCollectorEventHandler : public AppExecFwk::EventHandler {
     public:
diff --git a/services/sink/sinkmanager/test/sinkmanagerunittest/distributed_input_sinkmanager_test.h b/services/sink/sinkmanager/test/sinkmanagerunittest/distributed_input_sinkmanager_test.h
index 4abf0486a0111a0a6fc343dc82bea669f88fdd6f..b730a3c857f6ef312835d15ffad2d953aae70fdc 100644
--- a/services/sink/sinkmanager/test/sinkmanagerunittest/distributed_input_sinkmanager_test.h
+++ b/services/sink/sinkmanager/test/sinkmanagerunittest/distributed_input_sinkmanager_test.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2023 Huawei Device Co., Ltd.
+ * Copyright (c) 2021-2024 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -36,8 +36,8 @@ class DistributedInputSinkManagerTest : public testing::Test {
 public:
     static void SetUpTestCase();
     static void TearDownTestCase();
-    virtual void SetUp() override;
-    virtual void TearDown() override;
+    void SetUp() override;
+    void TearDown() override;
 
     class TestGetSinkScreenInfosCb : public
         OHOS::DistributedHardware::DistributedInput::GetSinkScreenInfosCallbackStub {
diff --git a/services/sink/sinkmanager/test/sinkmanagerunittest/mock/mock_process.cpp b/services/sink/sinkmanager/test/sinkmanagerunittest/mock/mock_process.cpp
index 05c4750510a32f6d56bb8535bddbcec7bfb55a72..e5796b31aa82072091ba5cafa366c6a9bf264de5 100644
--- a/services/sink/sinkmanager/test/sinkmanagerunittest/mock/mock_process.cpp
+++ b/services/sink/sinkmanager/test/sinkmanagerunittest/mock/mock_process.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Copyright (c) 2023-2024 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -23,7 +23,7 @@ namespace DistributedHardware {
 namespace DistributedInput {
 void MockProcess::MockDinputProcess(const char* processName)
 {
-    static const char *PERMS[] = {
+    static const char *perms[] = {
         "ohos.permission.DISTRIBUTED_DATASYNC"
     };
     uint64_t tokenId;
@@ -32,7 +32,7 @@ void MockProcess::MockDinputProcess(const char* processName)
         .permsNum = 1,
         .aclsNum = 0,
         .dcaps = nullptr,
-        .perms = PERMS,
+        .perms = perms,
         .acls = nullptr,
         .processName = processName,
         .aplStr = "system_core",
diff --git a/services/sink/transport/src/distributed_input_sink_transport.cpp b/services/sink/transport/src/distributed_input_sink_transport.cpp
index bedd63b185526603b35c518f1e8e7b572c3f203f..edc00ae99ac919a4fce2358e67c8c3f1df4ae4c3 100644
--- a/services/sink/transport/src/distributed_input_sink_transport.cpp
+++ b/services/sink/transport/src/distributed_input_sink_transport.cpp
@@ -253,7 +253,7 @@ void DistributedInputSinkTransport::SendKeyStateNodeMsgBatch(const int32_t sessi
 
 void DistributedInputSinkTransport::DoSendMsgBatch(const int32_t sessionId, const std::vector<struct RawEvent> &events)
 {
-    int64_t currentTimeNs = GetCurrentTimeUs() * 1000LL;
+    int64_t currentTimeNs = *(reinterpret_cast<int64_t *>(GetCurrentTimeUs())) * 1000LL;
     std::shared_ptr<nlohmann::json> eventsJsonArr = std::make_shared<nlohmann::json>();
     for (const auto &ev : events) {
         nlohmann::json tmpJson;
diff --git a/services/sink/transport/test/sinktransunittest/distributed_input_sinktrans_test.h b/services/sink/transport/test/sinktransunittest/distributed_input_sinktrans_test.h
index 46d44bc0faeaf274b60d154505eafc6b7ddb0b51..22e6a735f116c3bac4eb72422ba6c34108abeae6 100644
--- a/services/sink/transport/test/sinktransunittest/distributed_input_sinktrans_test.h
+++ b/services/sink/transport/test/sinktransunittest/distributed_input_sinktrans_test.h
@@ -33,8 +33,8 @@ class DistributedInputSinkTransTest : public testing::Test {
 public:
     static void SetUpTestCase();
     static void TearDownTestCase();
-    virtual void SetUp() override;
-    virtual void TearDown() override;
+    void SetUp() override;
+    void TearDown() override;
 private:
     nlohmann::json jsonStr_;
     nlohmann::json jsonStr1_;
diff --git a/services/source/inputinject/test/sourceinjectunittest/distributed_input_sourceinject_test.h b/services/source/inputinject/test/sourceinjectunittest/distributed_input_sourceinject_test.h
index c97fab483a88e4a8a53392c2544eac1bcdcef7c9..3f59f4a40a41bbe730893239b8fd343a8da32538 100644
--- a/services/source/inputinject/test/sourceinjectunittest/distributed_input_sourceinject_test.h
+++ b/services/source/inputinject/test/sourceinjectunittest/distributed_input_sourceinject_test.h
@@ -36,8 +36,8 @@ class DistributedInputSourceInjectTest : public testing::Test {
 public:
     static void SetUpTestCase();
     static void TearDownTestCase();
-    virtual void SetUp() override;
-    virtual void TearDown() override;
+    void SetUp() override;
+    void TearDown() override;
     class TestInputNodeListener : public OHOS::DistributedHardware::DistributedInput::InputNodeListenerStub {
     public:
         TestInputNodeListener() = default;
diff --git a/services/source/sourcemanager/test/sourcemanagerunittest/distributed_input_sourcemanager_test.h b/services/source/sourcemanager/test/sourcemanagerunittest/distributed_input_sourcemanager_test.h
index c47d5e0981e5ca0cba7fe60b6e2baf601d990f0c..d1001d322b75000669d1e93f7711fc1996c0cc38 100644
--- a/services/source/sourcemanager/test/sourcemanagerunittest/distributed_input_sourcemanager_test.h
+++ b/services/source/sourcemanager/test/sourcemanagerunittest/distributed_input_sourcemanager_test.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2023 Huawei Device Co., Ltd.
+ * Copyright (c) 2021-2024 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -48,8 +48,8 @@ class DistributedInputSourceManagerTest : public testing::Test {
 public:
     static void SetUpTestCase();
     static void TearDownTestCase();
-    virtual void SetUp() override;
-    virtual void TearDown() override;
+    void SetUp() override;
+    void TearDown() override;
 
     class TestPrepareDInputCallback : public
         OHOS::DistributedHardware::DistributedInput::PrepareDInputCallbackStub {
diff --git a/services/source/transport/test/sourcetransunittest/distributed_input_sourcetrans_test.h b/services/source/transport/test/sourcetransunittest/distributed_input_sourcetrans_test.h
index 7b4428805d3cc5013ecc36da94b8b3ef7ac38e2d..eaa0fa2fd233956053a8e2450b758140d75369e4 100644
--- a/services/source/transport/test/sourcetransunittest/distributed_input_sourcetrans_test.h
+++ b/services/source/transport/test/sourcetransunittest/distributed_input_sourcetrans_test.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
+ * Copyright (c) 2021-2024 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -33,8 +33,8 @@ class DistributedInputSourceTransTest : public testing::Test {
 public:
     static void SetUpTestCase();
     static void TearDownTestCase();
-    virtual void SetUp() override;
-    virtual void TearDown() override;
+    void SetUp() override;
+    void TearDown() override;
 };
 } // namespace DistributedInput
 } // namespace DistributedHardware
diff --git a/sinkhandler/test/unittest/distributed_input_sinkhandler_test.h b/sinkhandler/test/unittest/distributed_input_sinkhandler_test.h
index 0a3577b64b72da5379a72673ca684c9bff43e5f2..c69afe2b4d71c1c776125f86f47e8385688b50eb 100644
--- a/sinkhandler/test/unittest/distributed_input_sinkhandler_test.h
+++ b/sinkhandler/test/unittest/distributed_input_sinkhandler_test.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
+ * Copyright (c) 2021-2024 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -35,8 +35,8 @@ class DistributedInputSinkHandlerTest : public testing::Test {
 public:
     static void SetUpTestCase();
     static void TearDownTestCase();
-    virtual void SetUp() override;
-    virtual void TearDown() override;
+    void SetUp() override;
+    void TearDown() override;
     int32_t CheckSystemAbility();
 };
 } // namespace DistributedInput
diff --git a/sourcehandler/test/unittest/distributed_input_sourcehandler_test.h b/sourcehandler/test/unittest/distributed_input_sourcehandler_test.h
index 9060f8344c6465e89b1abe25863a3ad574ad78f5..105e0b6abfef84d4fe48b09b9868472621e84a79 100644
--- a/sourcehandler/test/unittest/distributed_input_sourcehandler_test.h
+++ b/sourcehandler/test/unittest/distributed_input_sourcehandler_test.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
+ * Copyright (c) 2021-2024 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -40,8 +40,8 @@ class DistributedInputSourceHandlerTest : public testing::Test {
 public:
     static void SetUpTestCase();
     static void TearDownTestCase();
-    virtual void SetUp() override;
-    virtual void TearDown() override;
+    void SetUp() override;
+    void TearDown() override;
     int32_t CheckSystemAbility();
 
     class TestRegisterDInputCallback : public OHOS::DistributedHardware::RegisterCallback {
diff --git a/utils/test/unittest/dinput_context_test.h b/utils/test/unittest/dinput_context_test.h
index 0a471de69a24d9736e5bdb7242bb672ffb906fad..d8d53700aba77767b35a62eb0bd10265b75409ed 100644
--- a/utils/test/unittest/dinput_context_test.h
+++ b/utils/test/unittest/dinput_context_test.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Copyright (c) 2022-2024 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -25,8 +25,8 @@ class DInputContextTest : public testing::Test {
 public:
     static void SetUpTestCase();
     static void TearDownTestCase();
-    virtual void SetUp() override;
-    virtual void TearDown() override;
+    void SetUp() override;
+    void TearDown() override;
 };
 } // namespace DistributedInput
 } // namespace DistributedHardware