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bot-bottle/tests/unit/test_macos_rootless_docker.py
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fix(macos): normalize rootless Docker subordinate IDs
2026-07-21 06:09:41 +00:00

78 lines
3.2 KiB
Python

"""Unit coverage for the fail-closed macOS rootless-Docker spike."""
from __future__ import annotations
import unittest
from pathlib import Path
from types import SimpleNamespace
from unittest.mock import patch
from bot_bottle.backend.macos_container import rootless_docker
class _Bottle:
def __init__(self, results: list[SimpleNamespace]) -> None:
self.results = results
self.commands: list[str] = []
def exec(self, command: str) -> SimpleNamespace:
self.commands.append(command)
return self.results.pop(0)
def _result(returncode: int, *, stdout: str = "", stderr: str = "") -> SimpleNamespace:
return SimpleNamespace(returncode=returncode, stdout=stdout, stderr=stderr)
class TestRootlessDockerStart(unittest.TestCase):
def test_bootstraps_then_waits_for_guest_local_daemon(self) -> None:
bottle = _Bottle([_result(0), _result(1), _result(0)])
with patch.object(rootless_docker.time, "sleep"):
rootless_docker.start(bottle)
self.assertIn("rootless-docker-init", bottle.commands[0])
self.assertEqual(2, bottle.commands.count("docker info >/dev/null 2>&1"))
def test_bootstrap_failure_is_fatal_without_privilege_fallback(self) -> None:
bottle = _Bottle([_result(1, stderr="newuidmap missing")])
with patch.object(rootless_docker, "die", side_effect=RuntimeError) as die:
with self.assertRaises(RuntimeError):
rootless_docker.start(bottle)
self.assertIn("newuidmap missing", die.call_args.args[0])
self.assertEqual(1, len(bottle.commands))
def test_timeout_reports_guest_log(self) -> None:
bottle = _Bottle(
[_result(0)]
+ [_result(1) for _ in range(rootless_docker.READY_RETRIES)]
+ [_result(0, stdout="operation not permitted")]
)
with patch.object(rootless_docker.time, "sleep"), \
patch.object(rootless_docker, "die", side_effect=RuntimeError) as die:
with self.assertRaises(RuntimeError):
rootless_docker.start(bottle)
self.assertIn("operation not permitted", die.call_args.args[0])
class TestRootlessDockerImage(unittest.TestCase):
def test_layers_tooling_without_changing_base_image(self) -> None:
calls: list[tuple[str, str, str]] = []
def build(image: str, context: str, *, dockerfile: str) -> None:
calls.append((image, context, dockerfile))
text = Path(dockerfile).read_text(encoding="utf-8")
self.assertIn("FROM agent:base", text)
self.assertIn("docker.io uidmap rootlesskit slirp4netns", text)
self.assertIn("sed -i '/^node:/d' /etc/subuid /etc/subgid", text)
self.assertEqual(1, text.count("node:100000:65536\\n' >> /etc/subuid"))
self.assertEqual(1, text.count("node:100000:65536\\n' >> /etc/subgid"))
self.assertIn("USER node", text)
self.assertTrue((Path(context) / "rootless-docker-init.sh").is_file())
image = rootless_docker.build_image("agent:base", build)
self.assertEqual("agent:base-rootless-docker", image)
self.assertEqual("agent:base-rootless-docker", calls[0][0])
if __name__ == "__main__":
unittest.main()