"""The one test that proves the timeout is real.

`bash -c "sleep 300 & sleep 300"` is a miniature helm: a process that forks a child and
waits on another. Kill the direct child only and the backgrounded `sleep` reparents to init
and keeps running — which, when the process is helm, means a timed-out task retries while
the original helm is still mutating the same release.

This test needs a real process tree, so it lives in integration/. It needs no database:
the `pool` fixture in conftest is not autouse.
"""

from __future__ import annotations

import asyncio
import subprocess

import pytest

from svcforge_core.adapters.helm import _run


@pytest.mark.asyncio
async def test_timeout_kills_the_whole_process_group() -> None:
    argv = ["bash", "-c", "sleep 300 & sleep 300"]  # child forks a grandchild
    with pytest.raises(TimeoutError):
        await _run(argv, timeout_s=1)
    await asyncio.sleep(0.5)
    out = subprocess.run(["pgrep", "-f", "sleep 300"], capture_output=True, text=True)  # noqa: S607
    assert out.stdout.strip() == "", "grandchild survived: you killed the child, not the group"