tweaks

tests/test_fits_header_ops.py

@@ -5,7 +5,8 @@ Description:    test append_header
 Author:         Bo Zhang
 Created:        2023-12-15
 Modified-History:
-    2023-12-15, Bo Zhang, add TestAppendHeader
+    2023-12-15, Bo Zhang, add TestFitsHeaderOps.test_append_header
+    2023-12-15, Bo Zhang, add TestFitsHeaderOps.test_reformat_header
 """
 import unittest
 
@@ -14,7 +15,7 @@ from astropy.io import fits
 from csst_common.io import append_header, reformat_header
 
 
-class TestAppendHeader(unittest.TestCase):
+class TestFitsHeaderOps(unittest.TestCase):
     def test_append_header(self):
         h1 = fits.Header()
         h2 = fits.Header()