diff --git a/test/unittest/datatransmitmgr/DevSLMgrTest.cpp b/test/unittest/datatransmitmgr/DevSLMgrTest.cpp
index 2e5fd646dbf9ad1b255b3eb286d84d2d19734254..1af29569e84bcab3e0e73e46fd883dc5e3241b00 100644
--- a/test/unittest/datatransmitmgr/DevSLMgrTest.cpp
+++ b/test/unittest/datatransmitmgr/DevSLMgrTest.cpp
@@ -17,7 +17,6 @@
 #include <mutex>
 #include <thread>
 #include <condition_variable>
-#include "gtest/gtest.h"
 #include "file_ex.h"
 #include "securec.h"
 #include "softbus_bus_center.h"
@@ -28,19 +27,6 @@
 #include "token_setproc.h"
 #include "accesstoken_kit.h"
 
-using namespace testing::ext;
-class DevSLMgrTest : public testing::Test {
-public:
-    DevSLMgrTest();
-    ~DevSLMgrTest();
-    static void SetUpTestCase();
-    static void TearDownTestCase();
-    void SetUp() override;
-    void TearDown() override;
-private:
-    static bool isEnforcing_;
-};
-
 static const int32_t DEV_SEC_LEVEL_ERR = 100;
 static const int32_t LIST_LENGTH = 128;
 
@@ -53,7 +39,9 @@ struct DeviceSecurityInfo {
 extern "C" {
     extern void OnApiDeviceSecInfoCallback(const DeviceIdentify *identify, struct DeviceSecurityInfo *info);
 }
-
+namespace OHOS {
+namespace Security {
+namespace DevSLMgrTest {
 static void NativeTokenGet()
 {
     uint64_t tokenId;
@@ -477,4 +465,7 @@ static HWTEST_F(DevSLMgrTest, TestGetHighestSecLevelExcept005, TestSize.Level1)
     ClearList(g_tmpList);
     g_tmpList = nullptr;
     DATASL_OnStop();
+}
+}
+}
 }
\ No newline at end of file
diff --git a/test/unittest/datatransmitmgr/DevSLMgrTest.h b/test/unittest/datatransmitmgr/DevSLMgrTest.h
index 472e5d279df0273a24207c0d86cade7261728448..e5673aaae232a9f1ef6a43285c36627f97a7401f 100644
--- a/test/unittest/datatransmitmgr/DevSLMgrTest.h
+++ b/test/unittest/datatransmitmgr/DevSLMgrTest.h
@@ -16,4 +16,25 @@
 #ifndef DATASECURITYLEVEL_TEST_H
 #define DATASECURITYLEVEL_TEST_H
 
+#include <gtest/gtest.h>
+
+namespace OHOS {
+namespace Security {
+namespace DevSLMgrTest {
+using namespace testing::ext;
+class DevSLMgrTest : public testing::Test {
+public:
+    DevSLMgrTest();
+    ~DevSLMgrTest();
+    static void SetUpTestCase();
+    static void TearDownTestCase();
+    void SetUp() override;
+    void TearDown() override;
+private:
+    static bool isEnforcing_;
+};
+}
+}
+}
+
 #endif
\ No newline at end of file