gunicorn/tests/test_companion_manager.py
Tanmoy Sarkar 5639d467f3 feat(companion): Add CompanionManager skeleton and single-companion spawn
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-09 16:57:18 +05:30

49 lines
1.4 KiB
Python

#
# This file is part of gunicorn released under the MIT license.
# See the NOTICE for more information.
from unittest import mock
import pytest
from gunicorn.companion.manager import CompanionManager
from gunicorn.companion.process import CompanionConfig, State
def make_manager(*names):
configs = [CompanionConfig(name=n, target=lambda: None) for n in names]
return CompanionManager(configs, log=mock.Mock())
def test_manager_builds_one_process_per_config():
mgr = make_manager("rq", "scheduler")
assert set(mgr.processes) == {"rq", "scheduler"}
assert mgr.processes["rq"].state == State.STOPPED
def test_resolve_target_accepts_callable():
fn = lambda: None
assert CompanionManager._resolve_target(fn) is fn
def test_resolve_target_import_string():
# os.getpid is a real "module:attr" target.
assert CompanionManager._resolve_target("os:getpid") is __import__("os").getpid
def test_resolve_target_rejects_bad_string():
with pytest.raises(ValueError):
CompanionManager._resolve_target("no_colon")
def test_spawn_parent_records_pid_and_starting():
mgr = make_manager("rq")
proc = mgr.processes["rq"]
with mock.patch("os.fork", return_value=4321):
pid = mgr.spawn_process(proc)
assert pid == 4321
assert proc.pid == 4321
assert proc.state == State.STARTING
assert proc.started_at is not None
assert proc.manual_stop is False