diff --git a/test/test_fits.py b/test/test_fits.py
index 12e2daf5aba4e40392af5e9021e751367607a86a..7d916bd1418b02ee18941492c5e9d3fe7e9167ce 100644
--- a/test/test_fits.py
+++ b/test/test_fits.py
@@ -1,18 +1,12 @@
 import unittest
 from astropy.io import fits
 
-from csst_dfs_commons.utils.fits import get_header_value, get_healpix_id, get_healpix_ids, hdul_of_healpix_ids
+from csst_dfs_commons.utils.fits import get_header_value, get_healpix_id, get_healpix_ids
 
 class CommonFitsTestCase(unittest.TestCase):
 
     def setUp(self):
         pass
-
-    def test_hdul_of_healpix_ids(self):
-        # hdul = fits.open()
-        # r = hdul_of_healpix_ids(id = 1)
-        pass
-
     def test_get_header_value(self):
         # cat_image_file = ""
         # hdul = fits.open(cat_image_file)
@@ -22,4 +16,23 @@ class CommonFitsTestCase(unittest.TestCase):
         # hdul.close()
         pass
 
+    def test_healpix_id(self):
+        assert get_healpix_id(169.44857011771074, -22.386716001490132) == 402272
+        assert get_healpix_id(169.4589413632046,-22.33955353764225) == 402275
+        assert get_healpix_id(169.48469002849907,-22.286516726694472) == 402275
+        assert get_healpix_id(169.4108965845783,-22.393670092820404) == 402272
+        assert get_healpix_id(169.43237517250446,-22.3422045639634) == 402274
+        assert get_healpix_id(169.4201458422564,-22.35046889102491) == 402274
+        assert get_healpix_id(169.4246373742319,-22.31984666676682) == 402275
+        assert get_healpix_id(169.45647029099555,-22.23815703367434) == 402275
+        assert get_healpix_id(169.40007432226554, -22.34302561078609) == 402274
+        assert get_healpix_id(169.43318631346764,-22.258275712920017) == 402275
+        assert get_healpix_id(207.37598395996824,-59.699973553678625) == 667401
+
 
+        cat_image_file = "/Users/wsl/temp/csst/CSST_MSC_MS_SCI_20270810142128_20270810142358_100000101_01_L0_1.fits"
+        with fits.open(cat_image_file) as hdul:
+            print(type((hdul[0].header['RA_OBJ'])))
+            hpix = get_healpix_id(hdul[0].header['RA_OBJ'], hdul[0].header['DEC_OBJ'])
+            print(int(hpix), hpix)
+