diff --git a/webgeodyn/tests/test_covobs_splines.py b/webgeodyn/tests/test_covobs_splines.py
index 6f79f9ddfe6ea758bc367b9c7cb7147d431d3338..91686d3f3b9c2c1d4bbd65e18faa8a121b2c60b5 100644
--- a/webgeodyn/tests/test_covobs_splines.py
+++ b/webgeodyn/tests/test_covobs_splines.py
@@ -45,13 +45,13 @@ class TestBuildingFromSplines(unittest.TestCase):
                     self.assertEqual(covspl.eval_spline(eval_date, center_date, self.spl_order, self.knot_sp), 0.)
 
     def test_building_gnm_few_splines(self):
-        """ Test the method building from the splines around the date asked """
+        """ Test the method building from the splines  """
         dates_gnm, gnm = covspl.build_gnm_from_spline_coeffs(self.dates_benchmark, self.spl_dates, self.spl_coeffs, self.spl_order, with_derivative=False)
         self.assertTrue(np.alltrue(np.abs(gnm - self.gnm_benchmark) < ABS_TOL))
 
     def test_building_gnm_all_splines(self):
-        """ Test the method building from all the splines """
-        dates_gnm, gnm = covspl.build_gnm_from_spline_coeffs_all_splines(self.dates_benchmark, self.spl_dates, self.spl_coeffs, self.spl_order)
+        """ Test the old method building from all the splines """
+        dates_gnm, gnm = covspl.build_gnm_from_spline_coeffs_old(self.dates_benchmark, self.spl_dates, self.spl_coeffs, self.spl_order, with_derivative=False, all_splines=True)
         self.assertTrue(np.alltrue(np.abs(gnm - self.gnm_benchmark) < ABS_TOL))
 
     def test_building_methods(self):