def test_no_mode(self):
     with self.assertRaises(ValueError):
         with patch('sys.stdout', new=MagicMock()):
             r.write_starfile([], '', '', mode='', threshold = 6)
 def test_no_threshold(self):
     with self.assertRaises(ValueError):
         with patch('sys.stdout', new=MagicMock()):
             r.write_starfile([], '/tmp/normal.star', '/tmp/out.star',
                             mode='resolution')