diff --git a/tests/test_data_manager.py b/tests/test_data_manager.py
deleted file mode 100644
index 82114cebfad3d4234b25fdcc0cdb029bf547b734..0000000000000000000000000000000000000000
--- a/tests/test_data_manager.py
+++ /dev/null
@@ -1,50 +0,0 @@
-# """
-# Identifier:     KSC-SJ4-tests/test_data_manager.py
-# Name:           test_data_manager.py
-# Description:    data manager unit test
-# Author:         Bo Zhang
-# Created:        2022-09-13
-# Modified-History:
-#     2022-09-13, Bo Zhang, created
-#     2022-09-29, Bo Zhang, added test for CsstMbiDataManager
-#     2022-10-28, Bo Zhang, deleted unit test for CsstMsDataManager
-# """
-# import os
-# import unittest
-#
-# from csst_common.data_manager import CsstMsDataManager
-# from csst_common.params import CSST_PARAMS as CP
-#
-# dir_unittest = "/nfsdata/share/pipeline-unittest/csst_common"
-#
-#
-# class TestCsstMsDataManager(unittest.TestCase):
-#     def setUp(self) -> None:
-#         self.dm_mbi = CsstMsDataManager.quickstart(
-#             ver_sim="C6.2", datatype="mbi", dir_l1=dir_unittest, exposure_id=100)
-#         self.dm_sls = CsstMsDataManager.quickstart(
-#             ver_sim="C6.2", datatype="sls", dir_l1=dir_unittest, exposure_id=100)
-#         self.dm_mbi.target_detectors = None
-#         self.dm_sls.target_detectors = None
-#
-#     def test_mbi_data_existence(self):
-#         self.assertTrue(self.dm_mbi.target_detectors == CP["mbi"]["detectors"])
-#         self.assertTrue(os.path.exists(self.dm_mbi.l0_detector(6)))
-#         self.assertTrue(os.path.exists(self.dm_mbi.l0_log(6)))
-#         self.assertTrue(os.path.exists(self.dm_mbi.l0_cat(6)))
-#         self.assertTrue(os.path.exists(self.dm_mbi.l0_crs(6)))
-#         self.assertTrue(isinstance(self.dm_mbi.l1_detector(6, post="img.fits"), str))
-#         self.assertTrue(isinstance(self.dm_mbi.l1_file(pipeline_id="some_file.ext", comment="a demo file"), str))
-#
-#     def test_sls_data_existence(self):
-#         self.assertTrue(self.dm_sls.target_detectors == CP["sls"]["detectors"])
-#         self.assertTrue(os.path.exists(self.dm_sls.l0_detector(1)))
-#         self.assertTrue(os.path.exists(self.dm_sls.l0_log(1)))
-#         self.assertTrue(os.path.exists(self.dm_sls.l0_cat(1)))
-#         self.assertTrue(os.path.exists(self.dm_sls.l0_crs(1)))
-#         self.assertTrue(isinstance(self.dm_sls.l1_detector(1, post="flt.fits"), str))
-#         self.assertTrue(isinstance(self.dm_sls.l1_file(pipeline_id="some_file.ext", comment="a demo file"), str))
-#
-#     # DFS is not always available
-#     # def test_dfs_is_available(self):
-#     #     self.assertTrue(self.dm_mbi.dfs_is_available())
diff --git a/tests/test_decorator.py b/tests/test_decorator.py
index 8c14d3299ffa7fe822434ce706eaf36f86932259..c0d94a8694be8862a9a9e2e14a42d5dc24d25f43 100644
--- a/tests/test_decorator.py
+++ b/tests/test_decorator.py
@@ -1,6 +1,17 @@
+"""
+Identifier:     tests/test_decorator.py
+Name:           test_decorator.py
+Description:    test decorator
+Author:         Bo Zhang
+Created:        2023-12-15
+Modified-History:
+    2023-12-10, Bo Zhang, add TestDecorator
+    2023-12-15, Bo Zhang, add module header
+"""
 import unittest
-from csst_common.status import CsstStatus, CsstResult
+
 from csst_common import parameterized_module_decorator
+from csst_common.status import CsstStatus, CsstResult
 
 
 class TestDecorator(unittest.TestCase):
diff --git a/tests/test_file.py b/tests/test_file.py
index 260f3cdb1ff7ca7a8233e70e00d142a88072c24e..97fed43f890d7f737dedf202f39c2ee39db301c9 100644
--- a/tests/test_file.py
+++ b/tests/test_file.py
@@ -1,10 +1,20 @@
+"""
+Identifier:     tests/test_file.py
+Name:           test_file.py
+Description:    test File class
+Author:         Bo Zhang
+Created:        2023-12-13
+Modified-History:
+    2023-12-13, Bo Zhang, add TestFile
+    2023-12-15, Bo Zhang, add module header
+"""
 import unittest
 
 from csst_common import File
 
 
 class TestFile(unittest.TestCase):
-    def test_parameterized_module_decorator(self):
+    def test_file(self):
         file_path = (
             "/dfs_root/L0/MSC/SCI/61605/10160000072/MS/"
             "CSST_MSC_MS_SCIE_20270719043315_20270719043545_10160000072_07_L0_V01.fits"
diff --git a/tests/test_fits_header_ops.py b/tests/test_fits_header_ops.py
index 8f298f08f5688f0a2b479a118917d0f22f5b1801..17e154e3a6b38b11815297c57a4b5bf91960d7eb 100644
--- a/tests/test_fits_header_ops.py
+++ b/tests/test_fits_header_ops.py
@@ -1,9 +1,20 @@
+"""
+Identifier:     tests/test_fits_header_ops.py
+Name:           test_fits_header_ops.py
+Description:    test append_header
+Author:         Bo Zhang
+Created:        2023-12-15
+Modified-History:
+    2023-12-15, Bo Zhang, add TestAppendHeader
+"""
 import unittest
-from csst_common.io import append_header
+
 from astropy.io import fits
 
+from csst_common.io import append_header
+
 
-class TestFile(unittest.TestCase):
+class TestAppendHeader(unittest.TestCase):
     def test_append_header(self):
         h1 = fits.Header()
         h2 = fits.Header()
diff --git a/tests/test_status.py b/tests/test_status.py
index b7efd612b9452875257aca11b9c8d7541e08b923..f9192a839de2e6256a3a0b494feac89f767c6d8d 100644
--- a/tests/test_status.py
+++ b/tests/test_status.py
@@ -3,12 +3,13 @@ Identifier:     tests/test_status.py
 Name:           test_status.py
 Description:    test CsstStatus
 Author:         Bo Zhang
-Created:        2022-09-13
+Created:        2022-10-04
 Modified-History:
-    2022-09-13, Bo Zhang, created
-    2022-09-13, Bo Zhang, added CsstMbiDataManager
+    2022-10-04, Bo Zhang, created, add CsstStatus test
+    2023-12-10, Bo Zhang, rename class
 """
 import unittest
+
 from csst_common.status import CsstStatus