def test_check_filter(): res, pos, msg = WinDivert.check_filter('true') assert res assert pos == 0 assert msg is not None res, pos, msg = WinDivert.check_filter('something wrong here') assert not res assert pos == 0 assert msg is not None res, pos, msg = WinDivert.check_filter('outbound and something wrong here') assert not res assert pos == 13