diff --git a/src/block_service/test/block_service_manager_test.cpp b/src/block_service/test/block_service_manager_test.cpp
index 73b2933fa6..de088f2d69 100644
--- a/src/block_service/test/block_service_manager_test.cpp
+++ b/src/block_service/test/block_service_manager_test.cpp
@@ -112,13 +112,17 @@ TEST_P(block_service_manager_test, local_file_exist)
     {
         int64_t size;
         std::string md5;
-    } tests[]{{2333, "bad_md5"}, {2333, _file_meta.md5}, {_file_meta.size, "bad_md5"}};
+    } tests[]{
+        {2333, "bad_md5"},           // wrong size and md5
+        {2333, _file_meta.md5},      // wrong size
+        {_file_meta.size, "bad_md5"} // wrong md5
+    };
     for (const auto &test : tests) {
         // The remote file will be overwritten when repeatedly created.
         create_remote_file(FILE_NAME, test.size, test.md5);
         uint64_t download_size = 0;
-        ASSERT_EQ(test_download_file(download_size), ERR_PATH_ALREADY_EXIST);
-        ASSERT_EQ(download_size, 0);
+        ASSERT_EQ(ERR_PATH_ALREADY_EXIST, test_download_file(download_size));
+        ASSERT_EQ(0, download_size);
     }
 }
 
diff --git a/src/replica/bulk_load/test/replica_bulk_loader_test.cpp b/src/replica/bulk_load/test/replica_bulk_loader_test.cpp
index 0c7bcc54a6..6354432c8b 100644
--- a/src/replica/bulk_load/test/replica_bulk_loader_test.cpp
+++ b/src/replica/bulk_load/test/replica_bulk_loader_test.cpp
@@ -261,9 +261,9 @@ class replica_bulk_loader_test : public replica_test_base
                                             /* should_sync */ true);
         ASSERT_TRUE(s.ok()) << s.ToString();
         _file_meta.name = whole_name;
-        utils::filesystem::md5sum(whole_name, _file_meta.md5);
-        utils::filesystem::file_size(
-            whole_name, dsn::utils::FileDataType::kSensitive, _file_meta.size);
+        ASSERT_EQ(ERR_OK, utils::filesystem::md5sum(whole_name, _file_meta.md5));
+        ASSERT_TRUE(utils::filesystem::file_size(
+            whole_name, dsn::utils::FileDataType::kSensitive, _file_meta.size));
     }
 
     error_code create_local_metadata_file()
diff --git a/src/replica/duplication/test/load_from_private_log_test.cpp b/src/replica/duplication/test/load_from_private_log_test.cpp
index f3e12e798c..2782f55f11 100644
--- a/src/replica/duplication/test/load_from_private_log_test.cpp
+++ b/src/replica/duplication/test/load_from_private_log_test.cpp
@@ -72,7 +72,6 @@
 #include "duplication_test_base.h"
 #include "replica/duplication/load_from_private_log.h"
 #include "replica/mutation_log_utils.h"
-#include "test_util/test_util.h"
 
 namespace dsn {
 namespace replication {
@@ -311,13 +310,6 @@ TEST_F(load_from_private_log_test, handle_real_private_log)
     std::vector<std::string> log_files({"log.1.0.handle_real_private_log",
                                         "log.1.0.handle_real_private_log2",
                                         "log.1.0.all_loaded_are_write_empties"});
-    if (FLAGS_encrypt_data_at_rest) {
-        for (int i = 0; i < log_files.size(); i++) {
-            auto s = dsn::utils::encrypt_file(log_files[i], log_files[i] + ".encrypted");
-            ASSERT_TRUE(s.ok()) << s.ToString();
-            log_files[i] += ".encrypted";
-        }
-    }
 
     struct test_data
     {