diff --git a/tests/unittests/backup_ext/ext_extension_test.cpp b/tests/unittests/backup_ext/ext_extension_test.cpp
index 906817edfa998cd2541877ebc7473412acf76985..9a73d1a97b1b0b50e0106cbf8a477b3808972fd8 100644
--- a/tests/unittests/backup_ext/ext_extension_test.cpp
+++ b/tests/unittests/backup_ext/ext_extension_test.cpp
@@ -589,4 +589,30 @@ HWTEST_F(ExtExtensionTest, Ext_Extension_Test_0900, testing::ext::TestSize.Level
     }
     GTEST_LOG_(INFO) << "ExtExtensionTest-end Ext_Extension_Test_0900";
 }
+
+/**
+ * @tc.number: SUB_Ext_Extension_1000
+ * @tc.name: Ext_Extension_Test_1000
+ * @tc.desc: 测试 GetFileHandleForSpecialCloneCloud
+ * @tc.size: MEDIUM
+ * @tc.type: FUNC
+ * @tc.level Level 1
+ * @tc.require: I9P3Y3
+ */
+HWTEST_F(ExtExtensionTest, Ext_Extension_Test_1000, testing::ext::TestSize.Level1)
+{
+    GTEST_LOG_(INFO) << "ExtExtensionTest-begin Ext_Extension_Test_1000";
+    try {
+        std::string fileName = "test.txt";
+        auto ret = GetIncreFileHandleForSpecialVersion(fileName);
+        EXPECT_EQ(ret, ERR_OK);
+        fileName = "/test.txt";
+        ret = GetIncreFileHandleForSpecialVersion(fileName);
+        EXPECT_EQ(ret, ERR_OK);
+    } catch (...) {
+        EXPECT_TRUE(false);
+        GTEST_LOG_(INFO) << "ExtExtensionTest-an exception occurred by construction.";
+    }
+    GTEST_LOG_(INFO) << "ExtExtensionTest-end Ext_Extension_Test_1000";
+}
 } // namespace OHOS::FileManagement::Backup
\ No newline at end of file
diff --git a/tests/unittests/backup_utils/b_json/b_json_clear_data_config_test.cpp b/tests/unittests/backup_utils/b_json/b_json_clear_data_config_test.cpp
index 1c4672ed61430ecd9c16ccb7c03c51c8d102944d..f18f1c1dfdebd816064d9a62852299091f44d4e5 100644
--- a/tests/unittests/backup_utils/b_json/b_json_clear_data_config_test.cpp
+++ b/tests/unittests/backup_utils/b_json/b_json_clear_data_config_test.cpp
@@ -411,4 +411,84 @@ HWTEST_F(BJsonClearDataConfigTest, Clear_Data_Config_Test_0600, testing::ext::Te
     }
     GTEST_LOG_(INFO) << "BJsonClearDataConfigTest-end Clear_Data_Config_Test_0600";
 }
+
+/**
+ * @tc.number: SUB_Clear_Data_Config_Test_0700
+ * @tc.name: Clear_Data_Config_Test_0700
+ * @tc.desc: 测试 InsertClearBundleRecord 接口
+ * @tc.size: MEDIUM
+ * @tc.type: FUNC
+ * @tc.level Level 1
+ * @tc.require: IAAMIK
+ */
+HWTEST_F(BJsonClearDataConfigTest, Clear_Data_Config_Test_0700, testing::ext::TestSize.Level1)
+{
+    GTEST_LOG_(INFO) << "BJsonClearDataConfigTest-begin Clear_Data_Config_Test_0700";
+    try {
+        string bundleName = "test1";
+        string filePath = PATH + CONFIG_NAME;
+        int cjson = 0;
+        EXPECT_CALL(*cJsonMock, cJSON_CreateObject()).WillOnce(Return(reinterpret_cast<cJSON *>(&cjson)));
+        EXPECT_CALL(*cJsonMock, cJSON_CreateArray()).WillOnce(Return(reinterpret_cast<cJSON *>(&cjson)));
+        EXPECT_CALL(*cJsonMock, cJSON_AddItemToObject(_, _, _)).WillOnce(Return(true));
+        EXPECT_CALL(*cJsonMock, cJSON_Print(_)).WillOnce(Return(nullptr));
+        EXPECT_CALL(*cJsonMock, cJSON_Delete(_)).WillOnce(Return());
+        BJsonClearDataConfig config;
+        EXPECT_EQ(access(filePath.c_str(), F_OK), 0);
+
+        EXPECT_CALL(*cJsonMock, cJSON_Parse(_)).WillOnce(Return(nullptr));
+        auto ret = config.InsertClearBundleRecord(bundleName);
+        EXPECT_FALSE(ret);
+
+        EXPECT_CALL(*cJsonMock, cJSON_Parse(_)).WillOnce(Return(reinterpret_cast<cJSON *>(&cjson)));
+        EXPECT_CALL(*cJsonMock, cJSON_GetObjectItem(_, _)).WillOnce(Return(nullptr));
+        EXPECT_CALL(*cJsonMock, cJSON_Delete(_)).WillOnce(Return());
+        ret = config.InsertClearBundleRecord(bundleName);
+        EXPECT_FALSE(ret);
+    } catch (...) {
+        EXPECT_TRUE(false);
+        GTEST_LOG_(INFO) << "BJsonClearDataConfigTest-an exception occurred by construction.";
+    }
+    GTEST_LOG_(INFO) << "BJsonClearDataConfigTest-end Clear_Data_Config_Test_0700";
+}
+
+/**
+ * @tc.number: SUB_Clear_Data_Config_Test_0800
+ * @tc.name: Clear_Data_Config_Test_0800
+ * @tc.desc: 测试 GetAllClearBundleRecords 接口
+ * @tc.size: MEDIUM
+ * @tc.type: FUNC
+ * @tc.level Level 1
+ * @tc.require: IAAMIK
+ */
+HWTEST_F(BJsonClearDataConfigTest, Clear_Data_Config_Test_0800, testing::ext::TestSize.Level1)
+{
+    GTEST_LOG_(INFO) << "BJsonClearDataConfigTest-begin Clear_Data_Config_Test_0800";
+    try {
+        string bundleName = "test1";
+        string filePath = PATH + CONFIG_NAME;
+        int cjson = 0;
+        EXPECT_CALL(*cJsonMock, cJSON_CreateObject()).WillOnce(Return(reinterpret_cast<cJSON *>(&cjson)));
+        EXPECT_CALL(*cJsonMock, cJSON_CreateArray()).WillOnce(Return(reinterpret_cast<cJSON *>(&cjson)));
+        EXPECT_CALL(*cJsonMock, cJSON_AddItemToObject(_, _, _)).WillOnce(Return(true));
+        EXPECT_CALL(*cJsonMock, cJSON_Print(_)).WillOnce(Return(nullptr));
+        EXPECT_CALL(*cJsonMock, cJSON_Delete(_)).WillOnce(Return());
+        BJsonClearDataConfig config;
+        EXPECT_EQ(access(filePath.c_str(), F_OK), 0);
+
+        EXPECT_CALL(*cJsonMock, cJSON_Parse(_)).WillOnce(Return(nullptr));
+        auto ret = config.GetAllClearBundleRecords();
+        EXPECT_EQ(ret.size(), 0);
+
+        EXPECT_CALL(*cJsonMock, cJSON_Parse(_)).WillOnce(Return(reinterpret_cast<cJSON *>(&cjson)));
+        EXPECT_CALL(*cJsonMock, cJSON_GetObjectItem(_, _)).WillOnce(Return(nullptr));
+        EXPECT_CALL(*cJsonMock, cJSON_Delete(_)).WillOnce(Return());
+        ret = config.GetAllClearBundleRecords();
+        EXPECT_EQ(ret.size(), 0);
+    } catch (...) {
+        EXPECT_TRUE(false);
+        GTEST_LOG_(INFO) << "BJsonClearDataConfigTest-an exception occurred by construction.";
+    }
+    GTEST_LOG_(INFO) << "BJsonClearDataConfigTest-end Clear_Data_Config_Test_0800";
+}
 } // namespace OHOS::FileManagement::Backup
\ No newline at end of file
diff --git a/tests/unittests/backup_utils/b_jsonutil/b_jsonutil_other_test.cpp b/tests/unittests/backup_utils/b_jsonutil/b_jsonutil_other_test.cpp
index 5607da2f35190f1de10cc62f3371e2a45434fd07..d4a18214c1f4225ccccd388f59fdbce5efc41839 100644
--- a/tests/unittests/backup_utils/b_jsonutil/b_jsonutil_other_test.cpp
+++ b/tests/unittests/backup_utils/b_jsonutil/b_jsonutil_other_test.cpp
@@ -30,6 +30,9 @@
 namespace OHOS::FileManagement::Backup {
 using namespace std;
 using namespace testing;
+namespace {
+    const static int BUNDLE_INDEX_DEFAULT_VAL = 0;
+}
 
 class BJsonUtilTest : public testing::Test {
 public:
@@ -284,4 +287,88 @@ HWTEST_F(BJsonUtilTest, b_jsonutil_BuildBundleInfoJson_0402, testing::ext::TestS
     }
     GTEST_LOG_(INFO) << "BJsonUtilTest-end BuildBundleInfoJson_0402";
 }
+
+/**
+ * @tc.number: b_jsonutil_BuildOnProcessErrInfo_0501
+ * @tc.name: b_jsonutil_BuildOnProcessErrInfo_0501
+ * @tc.desc: Test function of BuildOnProcessErrInfo interface.
+ * @tc.size: MEDIUM
+ * @tc.type: FUNC
+ * @tc.level Level 0
+ * @tc.require: I6F3GV
+ */
+HWTEST_F(BJsonUtilTest, b_jsonutil_BuildOnProcessErrInfo_0501, testing::ext::TestSize.Level0)
+{
+    GTEST_LOG_(INFO) << "BJsonUtilTest-begin BuildOnProcessErrInfo_0501";
+    try {
+        std::string reportInfo;
+        std::string path;
+        int err = 0;
+        int cjson = 0;
+        EXPECT_CALL(*cJsonMock, cJSON_CreateObject()).WillOnce(Return(nullptr));
+        bool result = BJsonUtil::BuildOnProcessErrInfo(reportInfo, path, err);
+        EXPECT_FALSE(result);
+
+        EXPECT_CALL(*cJsonMock, cJSON_CreateObject())
+            .WillOnce(Return(reinterpret_cast<cJSON *>(&cjson)))
+            .WillOnce(Return(nullptr));
+        EXPECT_CALL(*cJsonMock, cJSON_Delete(_)).WillOnce(Return());
+        result = BJsonUtil::BuildOnProcessErrInfo(reportInfo, path, err);
+        EXPECT_FALSE(result);
+
+        EXPECT_CALL(*cJsonMock, cJSON_CreateObject())
+            .WillOnce(Return(reinterpret_cast<cJSON *>(&cjson)))
+            .WillOnce(Return(reinterpret_cast<cJSON *>(&cjson)))
+            .WillOnce(Return(nullptr));
+        EXPECT_CALL(*cJsonMock, cJSON_Delete(_)).WillOnce(Return()).WillOnce(Return());
+        result = BJsonUtil::BuildOnProcessErrInfo(reportInfo, path, err);
+        EXPECT_FALSE(result);
+
+        EXPECT_CALL(*cJsonMock, cJSON_CreateObject())
+            .WillOnce(Return(reinterpret_cast<cJSON *>(&cjson)))
+            .WillOnce(Return(reinterpret_cast<cJSON *>(&cjson)))
+            .WillOnce(Return(reinterpret_cast<cJSON *>(&cjson)));
+        EXPECT_CALL(*cJsonMock, cJSON_AddStringToObject(_, _, _))
+            .WillOnce(Return(nullptr))
+            .WillOnce(Return(nullptr))
+            .WillOnce(Return(nullptr));
+        EXPECT_CALL(*cJsonMock, cJSON_AddItemToObject(_, _, _)).WillOnce(Return(true)).WillOnce(Return(true));
+        EXPECT_CALL(*cJsonMock, cJSON_Print(_)).WillOnce(Return(nullptr));
+        EXPECT_CALL(*cJsonMock, cJSON_Delete(_)).WillOnce(Return());
+        result = BJsonUtil::BuildOnProcessErrInfo(reportInfo, path, err);
+        EXPECT_FALSE(result);
+    } catch (...) {
+        EXPECT_TRUE(false);
+        GTEST_LOG_(INFO) << "BJsonUtilTest-an exception occurred.";
+    }
+    GTEST_LOG_(INFO) << "BJsonUtilTest-end BuildOnProcessErrInfo_0501";
+}
+
+/**
+ * @tc.number: b_jsonutil_BuildBundleNameIndexInfo_0601
+ * @tc.name: b_jsonutil_BuildBundleNameIndexInfo_0601
+ * @tc.desc: Test function of BuildBundleNameIndexInfo interface.
+ * @tc.size: MEDIUM
+ * @tc.type: FUNC
+ * @tc.level Level 0
+ * @tc.require: I6F3GV
+ */
+HWTEST_F(BJsonUtilTest, b_jsonutil_BuildBundleNameIndexInfo_0601, testing::ext::TestSize.Level0)
+{
+    GTEST_LOG_(INFO) << "BJsonUtilTest-begin BuildBundleNameIndexInfo_0601";
+    try {
+        std::string bundleName = "test";
+        int appIndex = BUNDLE_INDEX_DEFAULT_VAL;
+        auto ret = BJsonUtil::BuildBundleNameIndexInfo(bundleName, appIndex);
+        EXPECT_EQ(ret, bundleName);
+
+        appIndex = -1;
+        ret = BJsonUtil::BuildBundleNameIndexInfo(bundleName, appIndex);
+        EXPECT_NE(ret, bundleName);
+    } catch (...) {
+        EXPECT_TRUE(false);
+        GTEST_LOG_(INFO) << "BJsonUtilTest-an exception occurred.";
+    }
+    GTEST_LOG_(INFO) << "BJsonUtilTest-end BuildBundleNameIndexInfo_0601";
+}
 }
\ No newline at end of file