def METHOD_NAME(self):
    index = 0
    refine_flags = ['no_refinement', 'cut_x', 'cut_y', 'cut_xy']
    for cell in self.triangulation.active_cells():
        cell.refine_flag = refine_flags[index]
        index += 1
    index = 0
    for cell in self.triangulation.active_cells():
        self.assertEqual(cell.refine_flag, refine_flags[index])
        index += 1