diff --git a/tests/test_BF_CTE.py b/tests/test_BF_CTE.py
index 01817636d8a96347517b1900afac4685cb8f4023..35ed176de3fdbcad8fc9193a3b526c6200a21429 100644
--- a/tests/test_BF_CTE.py
+++ b/tests/test_BF_CTE.py
@@ -79,7 +79,8 @@ def defineFilt(chip):
 class detModule_coverage(unittest.TestCase):
     def __init__(self, methodName='runTest'):
         super(detModule_coverage, self).__init__(methodName)
-        self.dataPath = "/public/home/chengliang/CSSOSDataProductsSims/csst-simulation/tests/UNIT_TEST_DATA" ##os.path.join(os.getenv('UNIT_TEST_DATA_ROOT'), 'csst_fz_gc1')
+        ##self.dataPath = "/public/home/chengliang/CSSOSDataProductsSims/csst-simulation/tests/UNIT_TEST_DATA" ##os.path.join(os.getenv('UNIT_TEST_DATA_ROOT'), 'csst_fz_gc1')
+        self.dataPath = os.path.join(os.getenv('UNIT_TEST_DATA_ROOT'), 'csst_fz_msc')
         self.iccd = 1
 
 
@@ -132,11 +133,11 @@ class detModule_coverage(unittest.TestCase):
         rho_trap = np.array([0.6,1.6,1.4],dtype=np.float32)
         trap_seeds = np.array([0,100,1000],dtype=np.int32)
         release_seed = 500
-        image = fits.getdata("UNIT_TEST_DATA/testCTE_image_before.fits").astype(np.int32)
+        image = fits.getdata(os.path.join(self.dataPath, "testCTE_image_before.fits")).astype(np.int32) 
         #get_trap_map(trap_seeds,nx,ny,nmax,rho_trap,beta,c,".")
         #bin2fits("trap.bin",".",nsp,nx,ny,nmax)
         image_cti = CTI_sim(image,nx,ny,noverscan,nsp,nmax,beta,w,c,t,rho_trap,trap_seeds,release_seed)
-        fits.writeto("UNIT_TEST_DATA/testCTE_image_after.fits",data=image_cti,overwrite=True)
+        fits.writeto(os.path.join(self.dataPath, "testCTE_image_after.fits"),data=image_cti,overwrite=True)
 
 
 if __name__ == '__main__':
diff --git a/tests/test_PSFmodule.py b/tests/test_PSFmodule.py
index 1d878d4224341d0b3395fbb8bee1421e5f0cb61a..de8bf27555161fc96c6c79c9a2f7e978690d054b 100644
--- a/tests/test_PSFmodule.py
+++ b/tests/test_PSFmodule.py
@@ -39,8 +39,8 @@ def defineFilt(chip):
 class PSFInterpModule_coverage(unittest.TestCase):
     def __init__(self, methodName='runTest'):
         super(PSFInterpModule_coverage, self).__init__(methodName)
-        self.dataPath = "/public/home/chengliang/CSSOSDataProductsSims/csst-simulation/tests/UNIT_TEST_DATA" ##os.path.join(os.getenv('UNIT_TEST_DATA_ROOT'), 'csst_fz_gc1')
-        self.iccd = 1
+        self.dataPath = os.path.join(os.getenv('UNIT_TEST_DATA_ROOT'), 'csst_fz_msc')
+        self.iccd = 8
 
     def test_loadPSFSet(self):
         config_file = os.path.join(self.dataPath, 'config_test.yaml')
@@ -49,7 +49,7 @@ class PSFInterpModule_coverage(unittest.TestCase):
         print(chip.chipID)
         print(chip.cen_pix_x, chip.cen_pix_y)
         
-        pathTemp = "/public/share/yangxuliu/CSSOSDataProductsSims/psfCube/set1_dynamic/"
+        pathTemp = self.dataPath #"/public/share/yangxuliu/CSSOSDataProductsSims/psfCube/set1_dynamic/"
         psfModel= PSFInterp(chip, npsf=900, PSF_data_file=pathTemp, PSF_data_prefix="", HocBuild=True, LOG_DEBUG=True)
         
         x, y = 4096, 4096 #imgPos[iobj, :] # try get the PSF at some location (1234, 1234) on the chip
diff --git a/tests/test_darknoise_func.py b/tests/test_darknoise_func.py
index 93d5e65742987eb60f2e2b27bac342ef223d31d7..680ce7b1879ac55f3b01a841d22dc99dfbd371ae 100644
--- a/tests/test_darknoise_func.py
+++ b/tests/test_darknoise_func.py
@@ -60,7 +60,7 @@ def defineFilt(chip):
 class detModule_coverage(unittest.TestCase):
     def __init__(self, methodName='runTest'):
         super(detModule_coverage, self).__init__(methodName)
-        self.dataPath = "/public/home/chengliang/CSSOSDataProductsSims/csst-simulation/tests/UNIT_TEST_DATA" ##os.path.join(os.getenv('UNIT_TEST_DATA_ROOT'), 'csst_fz_gc1')
+        self.dataPath = os.path.join(os.getenv('UNIT_TEST_DATA_ROOT'), 'csst_fz_msc')
         self.iccd = 1
 
     def test_add_dark(self):
diff --git a/tests/test_prescan_overscan_func.py b/tests/test_prescan_overscan_func.py
index 9e8667bdad3677b54c4078b7becb215651fe6ca5..f3b17576c4a51573107939877a46e931476adad3 100644
--- a/tests/test_prescan_overscan_func.py
+++ b/tests/test_prescan_overscan_func.py
@@ -81,7 +81,7 @@ def defineFilt(chip):
 class detModule_coverage(unittest.TestCase):
     def __init__(self, methodName='runTest'):
         super(detModule_coverage, self).__init__(methodName)
-        self.dataPath = "/public/home/chengliang/CSSOSDataProductsSims/csst-simulation/tests/UNIT_TEST_DATA" ##os.path.join(os.getenv('UNIT_TEST_DATA_ROOT'), 'csst_fz_gc1')
+        self.dataPath = os.path.join(os.getenv('UNIT_TEST_DATA_ROOT'), 'csst_fz_msc')
         self.iccd = 1
 
     def test_add_prescan_overscan(self):