diff --git a/mittest/mtlenv/storage/test_medium_info_reader.cpp b/mittest/mtlenv/storage/test_medium_info_reader.cpp
index 47cf179e47..78f16b469b 100644
--- a/mittest/mtlenv/storage/test_medium_info_reader.cpp
+++ b/mittest/mtlenv/storage/test_medium_info_reader.cpp
@@ -25,7 +25,6 @@
 #include "unittest/storage/test_tablet_helper.h"
 #include "unittest/storage/test_dml_common.h"
 #include "unittest/storage/init_basic_struct.h"
-#include "unittest/storage/multi_data_source/common_define.h"
 #include "unittest/storage/schema_utils.h"
 #include "storage/tablet/ob_tablet_medium_info_reader.h"
 #include "storage/tablet/ob_tablet_persister.h"
diff --git a/mittest/mtlenv/test_buffer_ctx_node.cpp b/mittest/mtlenv/test_buffer_ctx_node.cpp
index e274e9ad74..f1c457e3cf 100644
--- a/mittest/mtlenv/test_buffer_ctx_node.cpp
+++ b/mittest/mtlenv/test_buffer_ctx_node.cpp
@@ -27,9 +27,6 @@
 #include "storage/multi_data_source/runtime_utility/mds_factory.h"
 #include "common/ob_clock_generator.h"
 #include "storage/multi_data_source/mds_node.h"
-#include "unittest/storage/multi_data_source/common_define.h"
-#include "unittest/storage/multi_data_source/example_user_data_define.h"
-#include "unittest/storage/multi_data_source/example_user_helper_define.h"
 #include "storage/multi_data_source/mds_table_handle.h"
 #include "storage/tablet/ob_tablet_meta.h"
 #define MIT_TESTCASE_LABEL
diff --git a/mittest/simple_server/test_mds_transaction.cpp b/mittest/simple_server/test_mds_transaction.cpp
index 09608578fe..8d1851d953 100644
--- a/mittest/simple_server/test_mds_transaction.cpp
+++ b/mittest/simple_server/test_mds_transaction.cpp
@@ -18,7 +18,6 @@
 #define protected public
 #define private public
 #include "ob_tablet_id.h"
-#include "storage/multi_data_source/common_define.h"
 #include "storage/tx_storage/ob_ls_service.h"
 #include "lib/utility/serialization.h"
 #include "share/cache/ob_kv_storecache.h"
@@ -27,7 +26,6 @@
 #include "storage/multi_data_source/mds_table_handle.h"
 #include "storage/tx_storage/ob_ls_handle.h"
 #include "storage/tablet/ob_tablet.h"
-#include "unittest/storage/multi_data_source/example_user_helper_define.cpp"
 #include "storage/multi_data_source/runtime_utility/mds_tenant_service.h"
 
 namespace oceanbase
diff --git a/src/share/deadlock/ob_deadlock_key_register.h b/src/share/deadlock/ob_deadlock_key_register.h
index 7df265ba26..6173c768c7 100644
--- a/src/share/deadlock/ob_deadlock_key_register.h
+++ b/src/share/deadlock/ob_deadlock_key_register.h
@@ -11,7 +11,7 @@
  */
 
 #ifdef NEED_DEFINE
-#include "../unittest/share/deadlock/test_key.h"// module unittest
+#include "share/deadlock/test/test_key.h"// module unittest
 #include "storage/tx/ob_trans_define.h"
 #include "storage/tablelock/ob_table_lock_deadlock.h"
 #endif
diff --git a/unittest/share/deadlock/test_key.h b/src/share/deadlock/test/test_key.h
similarity index 100%
rename from unittest/share/deadlock/test_key.h
rename to src/share/deadlock/test/test_key.h
diff --git a/src/storage/CMakeLists.txt b/src/storage/CMakeLists.txt
index 44c52c21cc..f5e9b233df 100755
--- a/src/storage/CMakeLists.txt
+++ b/src/storage/CMakeLists.txt
@@ -568,6 +568,7 @@ ob_set_subtarget(ob_storage multi_data_source
   multi_data_source/ob_mds_table_merge_dag.cpp
   multi_data_source/ob_mds_table_merge_dag_param.cpp
   multi_data_source/ob_mds_table_merge_task.cpp
+  multi_data_source/test/example_user_helper_define.cpp
 )
 
 ob_set_subtarget(ob_storage tablelock
diff --git a/src/storage/multi_data_source/compile_utility/mds_register.h b/src/storage/multi_data_source/compile_utility/mds_register.h
index 91f9218a1d..abe306a45e 100644
--- a/src/storage/multi_data_source/compile_utility/mds_register.h
+++ b/src/storage/multi_data_source/compile_utility/mds_register.h
@@ -9,8 +9,8 @@
 #if defined (NEED_MDS_REGISTER_DEFINE) && !defined (NEED_GENERATE_MDS_FRAME_CODE_FOR_TRANSACTION)
   #include "src/storage/multi_data_source/compile_utility/mds_dummy_key.h"
   #include "src/storage/multi_data_source/mds_ctx.h"
-  #include "unittest/storage/multi_data_source/example_user_data_define.h"
-  #include "unittest/storage/multi_data_source/example_user_helper_define.h"
+  #include "src/storage/multi_data_source/test/example_user_data_define.h"
+  #include "src/storage/multi_data_source/test/example_user_helper_define.h"
   #include "src/storage/tablet/ob_tablet_create_delete_mds_user_data.h"
   #include "src/storage/tablet/ob_tablet_create_mds_helper.h"
   #include "src/storage/tablet/ob_tablet_delete_mds_helper.h"
diff --git a/unittest/storage/multi_data_source/common_define.h b/src/storage/multi_data_source/test/common_define.h
similarity index 88%
rename from unittest/storage/multi_data_source/common_define.h
rename to src/storage/multi_data_source/test/common_define.h
index 93f026b5d2..6ca1ebc497 100644
--- a/unittest/storage/multi_data_source/common_define.h
+++ b/src/storage/multi_data_source/test/common_define.h
@@ -1,7 +1,6 @@
 #ifndef UNITTEST_STORAGE_MULTI_DATA_SOURCE_COMMON_DEFINE_H
 #define UNITTEST_STORAGE_MULTI_DATA_SOURCE_COMMON_DEFINE_H
 #include "src/share/scn.h"
-#include "example_user_data_define.h"
 
 namespace oceanbase {
 namespace unittest {
diff --git a/unittest/storage/multi_data_source/example_user_data_define.h b/src/storage/multi_data_source/test/example_user_data_define.h
similarity index 100%
rename from unittest/storage/multi_data_source/example_user_data_define.h
rename to src/storage/multi_data_source/test/example_user_data_define.h
diff --git a/unittest/storage/multi_data_source/example_user_helper_define.cpp b/src/storage/multi_data_source/test/example_user_helper_define.cpp
similarity index 100%
rename from unittest/storage/multi_data_source/example_user_helper_define.cpp
rename to src/storage/multi_data_source/test/example_user_helper_define.cpp
diff --git a/unittest/storage/multi_data_source/example_user_helper_define.h b/src/storage/multi_data_source/test/example_user_helper_define.h
similarity index 100%
rename from unittest/storage/multi_data_source/example_user_helper_define.h
rename to src/storage/multi_data_source/test/example_user_helper_define.h
diff --git a/unittest/share/deadlock/test_deadlock.cpp b/unittest/share/deadlock/test_deadlock.cpp
index dc46e19207..0823825b82 100644
--- a/unittest/share/deadlock/test_deadlock.cpp
+++ b/unittest/share/deadlock/test_deadlock.cpp
@@ -23,7 +23,7 @@
 #include "share/deadlock/ob_lcl_scheme/ob_lcl_message.h"
 #include "lib/function/ob_function.h"
 #include "common/ob_clock_generator.h"
-#include "share/deadlock/test_key.h"
+#include "share/deadlock/test/test_key.h"
 #include <string>
 #include <iostream>
 #include <thread>
diff --git a/unittest/share/deadlock/test_key_wrapper.cpp b/unittest/share/deadlock/test_key_wrapper.cpp
index 9c682eb7b6..e2ca2dee41 100644
--- a/unittest/share/deadlock/test_key_wrapper.cpp
+++ b/unittest/share/deadlock/test_key_wrapper.cpp
@@ -12,7 +12,7 @@
 
 #include "share/deadlock/ob_deadlock_key_wrapper.h"
 #include "share/deadlock/ob_deadlock_detector_mgr.h"
-#include "test_key.h"
+#include "share/deadlock/test/test_key.h"
 
 #include <gtest/gtest.h>
 #include <gmock/gmock.h>
diff --git a/unittest/share/deadlock/test_lcl_message_drop.cpp b/unittest/share/deadlock/test_lcl_message_drop.cpp
index 96d4d4f304..ba4f3b7def 100644
--- a/unittest/share/deadlock/test_lcl_message_drop.cpp
+++ b/unittest/share/deadlock/test_lcl_message_drop.cpp
@@ -16,7 +16,7 @@
 #define protected public
 #include "share/deadlock/ob_deadlock_key_wrapper.h"
 #include "share/deadlock/ob_deadlock_detector_mgr.h"
-#include "test_key.h"
+#include "share/deadlock/test/test_key.h"
 #include <string>
 #include <iostream>
 #include <thread>
diff --git a/unittest/storage/multi_data_source/test_mds_dump_kv.cpp b/unittest/storage/multi_data_source/test_mds_dump_kv.cpp
index 5518f511ae..a885fc473b 100644
--- a/unittest/storage/multi_data_source/test_mds_dump_kv.cpp
+++ b/unittest/storage/multi_data_source/test_mds_dump_kv.cpp
@@ -18,7 +18,6 @@
 #define protected public
 #include "storage/multi_data_source/compile_utility/mds_dummy_key.h"
 #include "storage/multi_data_source/compile_utility/map_type_index_in_tuple.h"
-#include "common_define.h"
 #include "storage/multi_data_source/adapter_define/mds_dump_node.h"
 #include <thread>
 #include <iostream>
@@ -27,7 +26,6 @@
 #include "storage/multi_data_source/runtime_utility/mds_factory.h"
 #include "common/ob_clock_generator.h"
 #include "storage/multi_data_source/mds_node.h"
-#include "example_user_helper_define.cpp"
 #include "storage/multi_data_source/mds_table_handle.h"
 #include "storage/tablet/ob_tablet_meta.h"
 namespace oceanbase {
diff --git a/unittest/storage/multi_data_source/test_mds_list.cpp b/unittest/storage/multi_data_source/test_mds_list.cpp
index d2c961b2a9..bf2aeaeae4 100644
--- a/unittest/storage/multi_data_source/test_mds_list.cpp
+++ b/unittest/storage/multi_data_source/test_mds_list.cpp
@@ -25,7 +25,6 @@
 #include "storage/multi_data_source/runtime_utility/mds_factory.h"
 #include "common/ob_clock_generator.h"
 #include "storage/multi_data_source/mds_node.h"
-#include "example_user_helper_define.cpp"
 #include "common/meta_programming/ob_type_traits.h"
 #include "storage/multi_data_source/mds_row.h"
 namespace oceanbase {
diff --git a/unittest/storage/multi_data_source/test_mds_node.cpp b/unittest/storage/multi_data_source/test_mds_node.cpp
index 0f5041a09b..f51bf017b8 100644
--- a/unittest/storage/multi_data_source/test_mds_node.cpp
+++ b/unittest/storage/multi_data_source/test_mds_node.cpp
@@ -25,7 +25,6 @@
 #include "storage/multi_data_source/runtime_utility/mds_factory.h"
 #include "common/ob_clock_generator.h"
 #include "storage/multi_data_source/mds_node.h"
-#include "example_user_helper_define.cpp"
 #include "common/meta_programming/ob_type_traits.h"
 #include "storage/multi_data_source/mds_row.h"
 namespace oceanbase {
diff --git a/unittest/storage/multi_data_source/test_mds_row.cpp b/unittest/storage/multi_data_source/test_mds_row.cpp
index bc8610c346..7160585e4c 100644
--- a/unittest/storage/multi_data_source/test_mds_row.cpp
+++ b/unittest/storage/multi_data_source/test_mds_row.cpp
@@ -16,7 +16,6 @@
 #include <exception>
 #define private public
 #define protected public
-#include "common_define.h"
 #include "lib/allocator/ob_malloc.h"
 #include "storage/multi_data_source/mds_node.h"
 #include <thread>
diff --git a/unittest/storage/multi_data_source/test_mds_table.cpp b/unittest/storage/multi_data_source/test_mds_table.cpp
index 6b41a59cf7..603a36f1fa 100644
--- a/unittest/storage/multi_data_source/test_mds_table.cpp
+++ b/unittest/storage/multi_data_source/test_mds_table.cpp
@@ -14,7 +14,6 @@
 #include <gtest/gtest.h>
 #define private public
 #define protected public
-#include "multi_data_source/example_user_data_define.h"
 #include "share/ob_ls_id.h"
 #include "storage/multi_data_source/mds_writer.h"
 #include <thread>
@@ -22,7 +21,6 @@
 #include <vector>
 #include <chrono>
 #include <exception>
-#include "common_define.h"
 #include "lib/ob_errno.h"
 #include "share/ob_errno.h"
 #include "storage/multi_data_source/adapter_define/mds_dump_node.h"
@@ -33,7 +31,6 @@
 #include "storage/multi_data_source/mds_unit.h"
 #include "storage/multi_data_source/mds_table_handle.h"
 #include "storage/multi_data_source/mds_table_handler.h"
-#include "example_user_helper_define.cpp"
 #include "storage/tx/ob_trans_define.h"
 #include <algorithm>
 #include <numeric>
diff --git a/unittest/storage/multi_data_source/test_mds_table_flush.cpp b/unittest/storage/multi_data_source/test_mds_table_flush.cpp
index 6a592f91f6..4d96967dd2 100644
--- a/unittest/storage/multi_data_source/test_mds_table_flush.cpp
+++ b/unittest/storage/multi_data_source/test_mds_table_flush.cpp
@@ -15,7 +15,6 @@
 #include <gtest/gtest.h>
 #define private public
 #define protected public
-#include "multi_data_source/example_user_data_define.h"
 #include "share/ob_ls_id.h"
 #include "storage/multi_data_source/mds_writer.h"
 #include <thread>
@@ -23,7 +22,6 @@
 #include <vector>
 #include <chrono>
 #include <exception>
-#include "common_define.h"
 #include "lib/ob_errno.h"
 #include "share/ob_errno.h"
 #include "storage/multi_data_source/adapter_define/mds_dump_node.h"
@@ -34,7 +32,6 @@
 #include "storage/multi_data_source/mds_unit.h"
 #include "storage/multi_data_source/mds_table_handle.h"
 #include "storage/multi_data_source/mds_table_handler.h"
-#include "example_user_helper_define.cpp"
 #include "storage/tx/ob_trans_define.h"
 #include <algorithm>
 #include <numeric>
diff --git a/unittest/storage/multi_data_source/test_mds_table_handle.cpp b/unittest/storage/multi_data_source/test_mds_table_handle.cpp
index 3e75285a19..ce5793b96f 100644
--- a/unittest/storage/multi_data_source/test_mds_table_handle.cpp
+++ b/unittest/storage/multi_data_source/test_mds_table_handle.cpp
@@ -9,8 +9,6 @@
  * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
  * See the Mulan PubL v2 for more details.
  */
-
-#include "multi_data_source/example_user_data_define.h"
 #include "share/ob_errno.h"
 #include <gtest/gtest.h>
 
diff --git a/unittest/storage/multi_data_source/test_mds_unit.cpp b/unittest/storage/multi_data_source/test_mds_unit.cpp
index 895158e94d..837d119a47 100644
--- a/unittest/storage/multi_data_source/test_mds_unit.cpp
+++ b/unittest/storage/multi_data_source/test_mds_unit.cpp
@@ -15,7 +15,6 @@
 #include "lib/utility/utility.h"
 #include "share/ob_errno.h"
 #include <exception>
-#include "common_define.h"
 #include "lib/allocator/ob_malloc.h"
 #include "storage/multi_data_source/mds_node.h"
 #include <thread>