diff --git a/UnitTests/test_loading.py b/UnitTests/test_loading.py
index 1265aa7..d2e8035 100644
--- a/UnitTests/test_loading.py
+++ b/UnitTests/test_loading.py
@@ -76,22 +76,31 @@ def test_load_df(self, mock_read_csv):
         pd.testing.assert_frame_equal(df, mock_df)
 
     @patch('numpy.load')
-    def test_load_scaler(self, mock_np_load):
-        # Set up the mock return values
+    @patch('os.path.dirname')
+    def test_load_scaler(self, mock_dirname, mock_np_load):
+        # Mock the current directory
+        mock_dirname.return_value = '/path/to/current/dir'
+
+        # Set up the mock return values for numpy.load
         mean_array = np.random.rand(10)  # Create an array with 10 elements
         std_array = np.random.rand(10)   # Create an array with 10 elements
         mock_np_load.return_value = {'mean': mean_array, 'scale': std_array}
 
-        mean, std = mm.load_scaler()
+        # Update the function call to include scaler_path
+        mean, std = mm.load_scaler('scaler_ae.npz')
 
         expected_index = ['SiO2', 'TiO2', 'Al2O3', 'FeOt', 'MnO', 'MgO', 'CaO', 'Na2O', 'K2O', 'Cr2O3']
         self.assertTrue((mean == pd.Series(mean_array, index=expected_index)).all())
         self.assertTrue((std == pd.Series(std_array, index=expected_index)).all())
 
+        # Assert numpy.load was called with the correct full file path
+        full_scaler_path = '/path/to/current/dir/scaler_ae.npz'
+        mock_np_load.assert_called_with(full_scaler_path)
+
         # Test for FileNotFoundError
         mock_np_load.side_effect = FileNotFoundError
         with self.assertRaises(FileNotFoundError):
-            mm.load_scaler()
+            mm.load_scaler('non_existing_path.npz')
 
 
 if __name__ == '__main__':