Files
MoviePilot/tests/test_database_backup_service.py
T

116 lines
3.4 KiB
Python

from __future__ import annotations
import stat
from dataclasses import dataclass
from datetime import datetime
from pathlib import Path
import pytest
from app.application.backup import BackupPolicy, DatabaseBackupService
@dataclass(frozen=True, slots=True)
class _Check:
valid: bool
method: str = "test-check"
detail: str | None = None
class _Backend:
db_type = "sqlite"
suffix = ".db"
def __init__(self, *, valid: bool = True) -> None:
self.valid = valid
self.restored: Path | None = None
def create(self, destination: Path) -> None:
destination.write_bytes(b"database snapshot")
def verify(self, artifact: Path) -> _Check:
return _Check(self.valid and artifact.read_bytes() == b"database snapshot")
def restore(self, artifact: Path) -> None:
self.restored = artifact
def _service(
root: Path,
*,
backend: _Backend | None = None,
now: datetime | None = None,
retention_days: int = 0,
max_count: int = 0,
) -> DatabaseBackupService:
return DatabaseBackupService(
backend=backend or _Backend(),
policy_reader=lambda: BackupPolicy(root, retention_days, max_count),
clock=lambda: now or datetime(2026, 8, 19, 13, 45, 26),
)
def test_create_publishes_one_readable_private_file(tmp_path: Path) -> None:
artifact = _service(tmp_path).create()
assert artifact.name == "sqlite_20260819_134526.db"
assert artifact.path.read_bytes() == b"database snapshot"
assert stat.S_IMODE(tmp_path.stat().st_mode) == 0o700
assert stat.S_IMODE(artifact.path.stat().st_mode) == 0o600
assert not list(tmp_path.glob("*.partial"))
def test_failed_verification_does_not_publish_artifact(tmp_path: Path) -> None:
with pytest.raises(RuntimeError, match="数据库备份校验失败"):
_service(tmp_path, backend=_Backend(valid=False)).create()
assert list(tmp_path.iterdir()) == []
def test_same_second_backups_receive_short_sequence_suffix(tmp_path: Path) -> None:
service = _service(tmp_path)
first = service.create()
second = service.create()
assert first.name == "sqlite_20260819_134526.db"
assert second.name == "sqlite_20260819_134526_1.db"
def test_retention_applies_after_new_artifact_is_available(tmp_path: Path) -> None:
old = _service(tmp_path, now=datetime(2026, 8, 1, 3, 0, 0)).create()
current = _service(
tmp_path,
now=datetime(2026, 8, 19, 3, 0, 0),
retention_days=7,
max_count=1,
).create()
assert current.path.exists()
assert not old.path.exists()
def test_list_ignores_unmanaged_files_and_rejects_paths(tmp_path: Path) -> None:
artifact = _service(tmp_path).create()
(tmp_path / "notes.txt").write_text("ignore", encoding="utf-8")
assert [item.name for item in _service(tmp_path).list()] == [artifact.name]
with pytest.raises(ValueError, match="文件名"):
_service(tmp_path).verify("../user.db")
def test_restore_requires_matching_database_type(tmp_path: Path) -> None:
backend = _Backend()
service = _service(tmp_path, backend=backend)
artifact = service.create()
restored = service.restore(artifact.name)
assert restored.name == artifact.name
assert backend.restored == artifact.path
postgres = tmp_path / "postgresql_20260819_134526.dump"
postgres.write_bytes(b"database snapshot")
with pytest.raises(ValueError, match="当前数据库类型"):
service.restore(postgres.name)