diff --git a/services/distributeddataservice/framework/test/app_id_mapping_config_manager_test.cpp b/services/distributeddataservice/framework/test/app_id_mapping_config_manager_test.cpp
index c441ba91092d0f02833e7407498dedaf0a90c818..5d99495c8565a325f5287689b22df192fdf33fdd 100644
--- a/services/distributeddataservice/framework/test/app_id_mapping_config_manager_test.cpp
+++ b/services/distributeddataservice/framework/test/app_id_mapping_config_manager_test.cpp
@@ -14,6 +14,7 @@
 */
 
 #include "app_id_mapping/app_id_mapping_config_manager.h"
+#include "access_check/app_access_check_config_manager.h"
 
 #include <gtest/gtest.h>
 
@@ -22,6 +23,8 @@ using namespace OHOS::DistributedData;
 namespace OHOS::Test {
 class AppIdMappingConfigManagerTest : public testing::Test {};
 
+class AppAccessCheckConfigManagerTest : public testing::Test {};
+
 /**
 * @tc.name: Convert
 * @tc.desc: Generate a pair based on the input appId and accountId.
@@ -61,4 +64,19 @@ HWTEST_F(AppIdMappingConfigManagerTest, Convert02, TestSize.Level1)
     result = AppIdMappingConfigManager::GetInstance().Convert("src1");
     EXPECT_EQ(result, "dst1");
 }
+
+/**
+* @tc.name: IsTrust
+* @tc.desc: Test the IsTrust function.
+* Cover the cases where the appid does not exist, exists, and exists with the same value as the saved one.
+* @tc.type: FUNC
+*/
+HWTEST_F(AppAccessCheckConfigManagerTest, IsTrust, TestSize.Level1)
+{
+    ASSERT_FALSE(AppAccessCheckConfigManager::GetInstance().IsTrust("123"));
+    AppAccessCheckConfigManager::GetInstance().appMapper_["123"] = "321";
+    ASSERT_FALSE(AppAccessCheckConfigManager::GetInstance().IsTrust("123"));
+    AppAccessCheckConfigManager::GetInstance().appMapper_["321"] = "321";
+    ASSERT_TRUE(AppAccessCheckConfigManager::GetInstance().IsTrust("321"));
+}
 } // namespace OHOS::Test
\ No newline at end of file
diff --git a/services/distributeddataservice/service/test/BUILD.gn b/services/distributeddataservice/service/test/BUILD.gn
index 7c20c4aa2ad038db6804228edef4467b3de9a991..eaac9fbd7caf85db928fe11b546f8b5af1cf6808 100644
--- a/services/distributeddataservice/service/test/BUILD.gn
+++ b/services/distributeddataservice/service/test/BUILD.gn
@@ -53,6 +53,7 @@ config("module_private_config") {
 }
 
 ohos_unittest("CloudDataTest") {
+  branch_protector_ret = "pac_ret"
   sanitize = {
     cfi = true
     cfi_cross_dso = true
diff --git a/services/distributeddataservice/service/test/cloud_data_test.cpp b/services/distributeddataservice/service/test/cloud_data_test.cpp
index 40d39394640128d486d1f61fc2476fa29ca4ab90..8b8ae80350a4e178abef9081f8a7b118f9e83b6e 100644
--- a/services/distributeddataservice/service/test/cloud_data_test.cpp
+++ b/services/distributeddataservice/service/test/cloud_data_test.cpp
@@ -55,6 +55,7 @@
 #include "store/general_value.h"
 #include "store/store_info.h"
 #include "sync_manager.h"
+#include "sync_strategies/network_sync_strategy.h"
 #include "token_setproc.h"
 
 using namespace testing::ext;
@@ -841,7 +842,6 @@ HWTEST_F(CloudDataTest, UpdateStartSyncInfo, TestSize.Level0)
     MetaDataManager::GetInstance().LoadMeta(CloudLastSyncInfo::GetKey(user, TEST_CLOUD_BUNDLE,
          ""), lastSyncInfos, true);
     EXPECT_TRUE(!lastSyncInfos.empty());
-    printf("code: %d", lastSyncInfos[0].code);
     EXPECT_TRUE(lastSyncInfos[0].code == -1);
     EXPECT_TRUE(lastSyncInfos[0].startTime != 0);
     EXPECT_TRUE(lastSyncInfos[0].finishTime != 0);
@@ -3151,5 +3151,71 @@ HWTEST_F(CloudDataTest, GetValidGeneralCode, TestSize.Level0)
     ret = CloudData::SyncManager::ConvertValidGeneralCode(E_SYNC_TASK_MERGED);
     EXPECT_TRUE(ret == E_ERROR);
 }
+
+/**
+* @tc.name: CheckSyncAction01
+* @tc.desc: Test the CheckSyncAction function,
+* covering scenarios where the network is unavailable branches.
+* @tc.type: FUNC
+*/
+HWTEST_F(CloudDataTest, CheckSyncAction01, TestSize.Level1)
+{
+    delegate_.isNetworkAvailable_ = false;
+    CloudData::NetworkSyncStrategy strategy;
+    StoreInfo storeInfo;
+    auto result = strategy.CheckSyncAction(storeInfo);
+    EXPECT_EQ(result, E_NETWORK_ERROR);
+}
+
+/**
+* @tc.name: CheckSyncAction02
+* @tc.desc: Test the CheckSyncAction function,
+* covering scenarios where  user is 0 branches.
+* @tc.type: FUNC
+*/
+HWTEST_F(CloudDataTest, CheckSyncAction02, TestSize.Level1)
+{
+    CloudData::NetworkSyncStrategy strategy;
+    StoreInfo storeInfo;
+    storeInfo.user = 0;
+    delegate_.isNetworkAvailable_ = true;
+    auto result = strategy.CheckSyncAction(storeInfo);
+    EXPECT_EQ(result, E_OK);
+}
+
+/**
+* @tc.name: CheckSyncAction03
+* @tc.desc: Test the CheckSyncAction function,
+* covering scenarios where both equal user branches.
+* @tc.type: FUNC
+*/
+HWTEST_F(CloudDataTest, CheckSyncAction03, TestSize.Level1)
+{
+    CloudData::NetworkSyncStrategy strategy;
+    StoreInfo storeInfo;
+    storeInfo.user = 0;
+    delegate_.isNetworkAvailable_ = true;
+    storeInfo.user = 100;
+    auto result = strategy.CheckSyncAction(storeInfo);
+    EXPECT_EQ(result, E_BLOCKED_BY_NETWORK_STRATEGY);
+}
+
+/**
+* @tc.name: CheckSyncAction04
+* @tc.desc: Test the CheckSyncAction function,
+* covering scenarios where both unequal user branches.
+* @tc.type: FUNC
+*/
+HWTEST_F(CloudDataTest, CheckSyncAction04, TestSize.Level1)
+{
+    delegate_.isNetworkAvailable_ = false;
+    CloudData::NetworkSyncStrategy strategy;
+    StoreInfo storeInfo;
+    delegate_.isNetworkAvailable_ = true;
+    storeInfo.user = 100;
+    strategy.user_ = 100;
+    auto result = strategy.CheckSyncAction(storeInfo);
+    EXPECT_EQ(result, E_BLOCKED_BY_NETWORK_STRATEGY);
+}
 } // namespace DistributedDataTest
 } // namespace OHOS::Test
\ No newline at end of file
diff --git a/services/distributeddataservice/service/test/mock/network_delegate_mock.cpp b/services/distributeddataservice/service/test/mock/network_delegate_mock.cpp
index cfab2309bdb8df8927d2991961301889bb038938..d0b435bda83eeb70f2522d317700af787c754a2f 100644
--- a/services/distributeddataservice/service/test/mock/network_delegate_mock.cpp
+++ b/services/distributeddataservice/service/test/mock/network_delegate_mock.cpp
@@ -23,7 +23,7 @@ bool NetworkDelegateMock::IsNetworkAvailable()
 
 NetworkDelegate::NetworkType NetworkDelegateMock::GetNetworkType(bool retrieve)
 {
-    return NetworkDelegate::NONE;
+    return networkType;
 }
 
 void NetworkDelegateMock::RegOnNetworkChange()
diff --git a/services/distributeddataservice/service/test/mock/network_delegate_mock.h b/services/distributeddataservice/service/test/mock/network_delegate_mock.h
index 0fcea3d287c291d3f87929eff26337fdcac7fc63..24e894aaddc2054dc4d82f8b631a5f5937d964c5 100644
--- a/services/distributeddataservice/service/test/mock/network_delegate_mock.h
+++ b/services/distributeddataservice/service/test/mock/network_delegate_mock.h
@@ -26,6 +26,7 @@ public:
     void RegOnNetworkChange() override;
     void BindExecutor(std::shared_ptr<ExecutorPool> executors) override;
     bool isNetworkAvailable_ = true;
+    NetworkType networkType = NetworkType::NONE;
     virtual ~NetworkDelegateMock() = default;
 };
 } // namespace DistributedData