Files
docker-volume-backup/tests/unit/backup/test_cli.py
2026-08-02 09:10:55 +02:00

84 lines
2.8 KiB
Python

"""Contract of the backup CLI, in particular the snapshot flag pairing."""
from __future__ import annotations
import unittest
from unittest import mock
from baudolo.backup.cli import parse_args
REQUIRED = ["--compose-dir", "/compose", "--backups-dir", "/backups"]
def parse(*extra: str):
with mock.patch("sys.argv", ["baudolo", *REQUIRED, *extra]):
return parse_args()
class TestSnapshotFlags(unittest.TestCase):
def test_no_snapshot_by_default(self) -> None:
args = parse()
self.assertIsNone(args.snapshot)
self.assertIsNone(args.snapshot_subject)
def test_both_flags_together_are_accepted(self) -> None:
args = parse("--snapshot", "btrfs", "--snapshot-subject", "/var/lib/docker")
self.assertEqual(args.snapshot, "btrfs")
self.assertEqual(args.snapshot_subject, "/var/lib/docker")
def test_the_kind_alone_is_rejected(self) -> None:
with self.assertRaises(SystemExit):
parse("--snapshot", "btrfs")
def test_the_subject_alone_is_rejected(self) -> None:
with self.assertRaises(SystemExit):
parse("--snapshot-subject", "/var/lib/docker")
def test_an_unsupported_kind_is_rejected(self) -> None:
with self.assertRaises(SystemExit):
parse("--snapshot", "ext4", "--snapshot-subject", "/var/lib/docker")
def test_zfs_is_accepted(self) -> None:
self.assertEqual(
parse("--snapshot", "zfs", "--snapshot-subject", "/d").snapshot, "zfs"
)
def test_shutdown_is_rejected_because_nothing_is_stopped(self) -> None:
with self.assertRaises(SystemExit):
parse("--snapshot", "btrfs", "--snapshot-subject", "/d", "--shutdown")
def test_shutdown_stays_available_without_a_snapshot(self) -> None:
self.assertTrue(parse("--shutdown").shutdown)
def test_hard_restart_is_rejected_because_nothing_is_stopped(self) -> None:
with self.assertRaises(SystemExit):
parse(
"--snapshot",
"btrfs",
"--snapshot-subject",
"/d",
"--hard-restart-projects",
"mailu",
)
def test_hard_restart_stays_available_without_a_snapshot(self) -> None:
self.assertEqual(
parse("--hard-restart-projects", "mailu").hard_restart_projects, ["mailu"]
)
class TestRequiredFlags(unittest.TestCase):
def test_backups_dir_is_required(self) -> None:
with mock.patch("sys.argv", ["baudolo", "--compose-dir", "/compose"]):
with self.assertRaises(SystemExit):
parse_args()
def test_compose_dir_is_required(self) -> None:
with mock.patch("sys.argv", ["baudolo", "--backups-dir", "/backups"]):
with self.assertRaises(SystemExit):
parse_args()
if __name__ == "__main__":
unittest.main()