diff --git a/test/fuzztest/devicediscovery_fuzzer/device_discovery_fuzzer.cpp b/test/fuzztest/devicediscovery_fuzzer/device_discovery_fuzzer.cpp
index 0551bde0fb4dcb0bec5b36bf0c772058f3c35a26..b9d78f841fc30f80c71bb5f2ec3f30de82648a6a 100644
--- a/test/fuzztest/devicediscovery_fuzzer/device_discovery_fuzzer.cpp
+++ b/test/fuzztest/devicediscovery_fuzzer/device_discovery_fuzzer.cpp
@@ -47,7 +47,9 @@ void DeviceDiscoveryFuzzTest(const uint8_t* data, size_t size)
     subInfo.freq = *(reinterpret_cast<const DmExchangeFreq*>(data));
     subInfo.isSameAccount = *(reinterpret_cast<const bool*>(data));
     subInfo.isWakeRemote = *(reinterpret_cast<const bool*>(data));
-    strncpy_s(subInfo.capability, DM_MAX_DEVICE_CAPABILITY_LEN, (char*)data, DM_MAX_DEVICE_CAPABILITY_LEN);
+    if (strncpy_s(subInfo.capability, DM_MAX_DEVICE_CAPABILITY_LEN, (char*)data, DM_MAX_DEVICE_CAPABILITY_LEN) != 0) {
+        return;
+    }
     std::string extra(reinterpret_cast<const char*>(data), size);
     int16_t subscribeId = *(reinterpret_cast<const int16_t*>(data));
 
diff --git a/test/unittest/UTTest_device_manager_service.cpp b/test/unittest/UTTest_device_manager_service.cpp
index d3d40c4247b9a4ef157f3e5a6b6c0e72b9e76f31..1e97a25b99f437033123a5d8546a94ac9f1f11d4 100644
--- a/test/unittest/UTTest_device_manager_service.cpp
+++ b/test/unittest/UTTest_device_manager_service.cpp
@@ -128,48 +128,6 @@ HWTEST_F(DeviceManagerServiceTest, StopDeviceDiscovery_002, testing::ext::TestSi
     EXPECT_EQ(ret, ERR_DM_INPUT_PARAMETER_EMPTY);
 }
 
-/**
- * @tc.name: GetLocalDeviceInfo_001
- * @tc.desc: Set the flag bit of GetLocalDeviceInfo to intFlag_ to false; The return value is ERR_DM_NOT_INIT
- * @tc.type: FUNC
- * @tc.require: AR000GHSJK
- */
-HWTEST_F(DeviceManagerServiceTest, GetLocalDeviceInfo_001, testing::ext::TestSize.Level0)
-{
-    DmDeviceInfo info;
-    int ret = DeviceManagerService::GetInstance().GetLocalDeviceInfo(info);
-    EXPECT_EQ(ret, DM_OK);
-}
-
-/**
- * @tc.name:GetLocalDeviceInfo_002
- * @tc.desc: Initialize the GetLocalDeviceInfo function with the return value DM_OK
- * @tc.type: FUNC
- * @tc.require: AR000GHSJK
- */
-HWTEST_F(DeviceManagerServiceTest, GetLocalDeviceInfo_002, testing::ext::TestSize.Level0)
-{
-    DmDeviceInfo info;
-    int ret = DeviceManagerService::GetInstance().GetLocalDeviceInfo(info);
-    EXPECT_EQ(ret, DM_OK);
-}
-
-/**
- * @tc.name: GetTrustedDeviceList_001
- * @tc.desc: Set the intFlag of GetTrustedDeviceList to false. The return value is ERR_DM_NOT_INIT
- * @tc.type: FUNC
- * @tc.require: AR000GHSJK
- */
-
-HWTEST_F(DeviceManagerServiceTest, GetTrustedDeviceList_001, testing::ext::TestSize.Level0)
-{
-    std::string pkgName = "com.ohos.test";
-    std::string extra = "jdddd";
-    std::vector<DmDeviceInfo> deviceList;
-    int ret = DeviceManagerService::GetInstance().GetTrustedDeviceList(pkgName, extra, deviceList);
-    EXPECT_EQ(ret, DM_OK);
-}
-
 /**
  * @tc.name: GetTrustedDeviceList_002
  * @tc.desc:Set the intFlag of GetTrustedDeviceList to true and pkgName = null; Return ERR_DM_INPUT_PARAMETER_EMPTY
diff --git a/test/unittest/UTTest_softbus_connector.cpp b/test/unittest/UTTest_softbus_connector.cpp
index 0188a30fd2ef827fdc2b77ab4e4db4d997f7edc3..e7f16c256078af10c0396ac9e16a958acf1101ed 100644
--- a/test/unittest/UTTest_softbus_connector.cpp
+++ b/test/unittest/UTTest_softbus_connector.cpp
@@ -230,33 +230,6 @@ HWTEST_F(SoftbusConnectorTest, UnRegisterSoftbusStateCallback_001, testing::ext:
     EXPECT_EQ(ret, DM_OK);
 }
 
-/**
- * @tc.name: GetTrustedDeviceList_001
- * @tc.desc: create GetAllNodeDeviceInfo  not equal 0, and return DM_OK
- * @tc.type: FUNC
- * @tc.require: AR000GHSJK
- */
-HWTEST_F(SoftbusConnectorTest, GetTrustedDeviceList_001, testing::ext::TestSize.Level0)
-{
-    std::vector<DmDeviceInfo> deviceInfoList;
-    int ret = softbusListener->GetTrustedDeviceList(deviceInfoList);
-    EXPECT_EQ(ret, DM_OK);
-}
-
-/**
- * @tc.name: GetLocalDeviceInfo_001
- * @tc.desc: set pkgName to com.softbus.test,define deviceInfo,and return DM_OK.
- * @tc.type: FUNC
- * @tc.require: AR000GHSJK
- */
-HWTEST_F(SoftbusConnectorTest, GetLocalDeviceInfo_001, testing::ext::TestSize.Level0)
-{
-    std::string pkgName = "com.softbus.test";
-    DmDeviceInfo deviceInfo;
-    int ret = softbusListener->GetLocalDeviceInfo(deviceInfo);
-    EXPECT_EQ(ret, DM_OK);
-}
-
 /**
  * @tc.name: StartDiscovery_001
  * @tc.desc: get StartDiscovery to wroing master and return ERR_DM_DISCOVERY_FAILED
diff --git a/test/unittest/UTTest_softbus_listener.cpp b/test/unittest/UTTest_softbus_listener.cpp
index 9f70b1dd811ee9986146ede6a7cca8852e4a4067..88a276421ba67833d296aae22736e76503d367c8 100644
--- a/test/unittest/UTTest_softbus_listener.cpp
+++ b/test/unittest/UTTest_softbus_listener.cpp
@@ -51,36 +51,6 @@ HWTEST_F(SoftbusListenerTest, Init_001, testing::ext::TestSize.Level0)
     int ret = softbusListener->Init();
     EXPECT_EQ(ret, DM_OK);
 }
-
-/**
- * @tc.name: GetTrustedDeviceList_001
- * @tc.desc:  Returns a new pointer to the constructor
- * to construct an environment where the device has been discovered, and stop discovering
- * the device. Its return value is ERR_DM_INPUT_PARAMETER_EMPTY
- * @tc.type: FUNC
- * @tc.require: AR000GHSJK
- */
-HWTEST_F(SoftbusListenerTest, GetTrustedDeviceList_001, testing::ext::TestSize.Level0)
-{
-    std::vector<DmDeviceInfo> deviceList;
-    int32_t ret = softbusListener->GetTrustedDeviceList(deviceList);
-    ASSERT_EQ(ret, DM_OK);
-}
-
-/**
- * @tc.name: GetLocalDeviceInfo_001
- * @tc.desc:  Returns a new pointer to the constructor
- * to construct an environment where the device has been discovered, and stop discovering
- * the device. Its return value is ERR_DM_INPUT_PARAMETER_EMPTY
- * @tc.type: FUNC
- * @tc.require: AR000GHSJK
- */
-HWTEST_F(SoftbusListenerTest, GetLocalDeviceInfo_001, testing::ext::TestSize.Level0)
-{
-    DmDeviceInfo deviceInfo;
-    int32_t ret = softbusListener->GetLocalDeviceInfo(deviceInfo);
-    ASSERT_EQ(ret, DM_OK);
-}
 }
 } // namespace DistributedHardware
 } // namespace OHOS