diff --git a/tests/unittests/backup_api/backup_impl/svc_death_recipient_test.cpp b/tests/unittests/backup_api/backup_impl/svc_death_recipient_test.cpp
index 27cca4655154b53c066e9dc8ccab63200fb0f831..a1b1e58ebd9ceeaf5daa3836f47ac522127932b5 100644
--- a/tests/unittests/backup_api/backup_impl/svc_death_recipient_test.cpp
+++ b/tests/unittests/backup_api/backup_impl/svc_death_recipient_test.cpp
@@ -13,7 +13,9 @@
  * limitations under the License.
  */
 
+#include <condition_variable>
 #include <cstdio>
+
 #include <gtest/gtest.h>
 
 #include "iservice_registry.h"
@@ -25,6 +27,8 @@ using namespace std;
 using namespace testing;
 
 const string FILE_NAME = "temp.json";
+static condition_variable g_cv;
+static atomic<bool> g_serviceDie = false;
 
 class SvcDeathRecipientTest : public testing::Test {
 public:
@@ -32,10 +36,15 @@ public:
     static void TearDownTestCase() {};
     void SetUp() override {};
     void TearDown() override {};
+
+public:
+    mutex lock_;
 };
 
 static void CallBack(const wptr<IRemoteObject> &obj)
 {
+    g_serviceDie.store(true);
+    g_cv.notify_all();
     GTEST_LOG_(INFO) << "SvcSessionManagerTest-CallBack success";
 }
 
@@ -57,6 +66,9 @@ HWTEST_F(SvcDeathRecipientTest, SUB_backup_sa_deathecipient_OnRemoteDied_0100, t
     deathRecipient->OnRemoteDied(remote);
     remote = nullptr;
     deathRecipient = nullptr;
+    unique_lock<mutex> lk(lock_);
+    g_cv.wait(lk, [&] { return true; });
+    ASSERT_TRUE(g_serviceDie);
     GTEST_LOG_(INFO) << "SvcSessionManagerTest-end SUB_backup_sa_deathecipient_OnRemoteDied_0100";
 }
 } // namespace OHOS::FileManagement::Backup
\ No newline at end of file
diff --git a/tests/unittests/backup_utils/b_filesystem/b_file_test.cpp b/tests/unittests/backup_utils/b_filesystem/b_file_test.cpp
index 22b7c54bf7bcad67eb5f2c3e11c0152e1654b910..813e72c0cb6d86ca7e5dc59893438d0d0f4b8224 100644
--- a/tests/unittests/backup_utils/b_filesystem/b_file_test.cpp
+++ b/tests/unittests/backup_utils/b_filesystem/b_file_test.cpp
@@ -93,9 +93,11 @@ HWTEST_F(BFileTest, b_file_SendFile_0100, testing::ext::TestSize.Level1)
         TestManager tm(__func__);
         const auto [filePath, content] = GetTestFile(tm);
         TestManager tmInFile("b_file_GetFd_0100");
-        string fileInPath = tmInFile.GetRootDirCurTest().append("1.tar");
-        BFile::SendFile(UniqueFd(open(filePath.data(), O_RDWR)),
-                        UniqueFd(open(fileInPath.data(), O_RDWR | O_CREAT, S_IRWXU)));
+        string fileOutPath = tmInFile.GetRootDirCurTest().append("1.tar");
+        BFile::SendFile(UniqueFd(open(fileOutPath.data(), O_RDWR)),
+                        UniqueFd(open(filePath.data(), O_RDWR | O_CREAT, S_IRWXU)));
+        string contentTmp = BFile::ReadFile(UniqueFd(open(fileOutPath.c_str(), O_RDONLY))).get();
+        EXPECT_EQ(contentTmp, content);
     } catch (const exception &e) {
         GTEST_LOG_(INFO) << "BFileTest-an exception occurred by SendFile.";
         e.what();