def test_fold(self): r1 = RangeSetND([["0-10", "1-2"], ["5-15,40-60", "1-3"], ["0-4", "3"]]) r1.fold() self.assertEqual(str(r1._veclist), "[[0-15,40-60, 1-3]]") self.assertEqual(str(r1), "0-15,40-60; 1-3\n")