def METHOD_NAME(self, data_regression):
    """
    Parse complete output of voronoi calculation and compare out_dict, grouping, warnings
    """
    out_dict = {'parser_version': 'some_version_number'}
    success, msg_list, out_dict = parse_voronoi_output(out_dict, self.outfile, self.potfile, self.atominfo,
                                                       self.radii, self.inputfile)
    out_dict['parser_warnings'] = msg_list
    assert success
    assert not msg_list
    groups = [i for i in list(out_dict.keys()) if 'group' in i]
    assert set(groups) == set(self.grouping_ref)
    data_regression.check(out_dict)