from __future__ import annotations

import os
from argparse import ArgumentParser
from contextlib import suppress
from unittest.mock import patch

os.environ["FORCE_COLOR"] = "1"

parser = ArgumentParser(description="argparse tester", prog="complex")
parser.add_argument("--root", action="store_true", help="root flag")
sub = parser.add_subparsers(dest="command")
sub.add_parser("demo")

with suppress(SystemExit):
    parser.parse_args(["demo", "--help"])

with patch.dict(os.environ, {"NO_COLOR": "1"}, clear=False):
    parser.parse_args(["demo", "--help"])