test: 按模块重写测试代码，删除旧平铺结构
按"测试规则"重写 tests/：一个模块一个目录、用例按数据→过程→验证三段书写、 不保留全局 conftest.py、测试过程只调用真实生产代码。 结构（73 个文件、30 个模块目录、477 用例）： - tests/nodes/ 15 个模块目录（srt/whisper/ass/ffmpeg/frame_extract/vlm/ subtitle_ocr/llm/llm_filter/subtitle_cleanup/subtitle_correction/ proper_nouns/adaptive_pool/vad_profiler/echo）； - tests/app/ 11 个模块目录（db/scheduler/batch/maintenance/registry/seed/ storage/config/logging/main/routers 三组 API）； - tests/sdk/test_models、tests/web/test_crop、tests/shared（公共设施）。 测试数据随模块目录入库（tests/**/data/），删除根级 testdata/；.gitignore 的 data/ 改为 /data/，否则会连带忽略 tests/**/data/ 导致测试数据无法入库。 顺带发现并修复三个真实缺陷： - nodes/srt.py：相邻条目缺少空行时把下一条时间轴吞进正文（静默错位）， 改为正文行遇时间戳行即报错； - src/wov_app/scheduler.py：_file_size 只捕获 OSError，含 \x00 的产物 URI 抛 ValueError 导致任务误判失败，改为同时捕获； - nodes/subtitle_correction.py：生产代码依赖测试包解析 SRT， 改用生产模块 nodes/srt.py。 真实模型/服务集成测试按外部状态跳过：新增 tests/shared/gpu_memory.py （运行时探测显存、CUDA OOM 转跳过）与 tests/shared/llm_service.py （无 Key / 余额 / 限流转跳过）。全量 477 passed。
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"""src/wov_app/maintenance.py 的模块级测试（数据 → 测试过程 → 验证结果）。
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被测模块：`src/wov_app/maintenance.py`（孤儿数据清理：只删明确死数据），
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可独立调用。用例在临时目录构造真实存储布局与真实 SQLite 记录，验证
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"该删的删、不该删的绝不删"（R01/R03 的安全约定）。
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"""
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from __future__ import annotations
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from datetime import datetime, timedelta, timezone
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from pathlib import Path
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from wov_app.db import Database
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from wov_app.maintenance import OrphanCleaner
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def _now_iso(offset_seconds: int = 0) -> str:
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"""返回当前 UTC 时间字符串，可偏移秒数（构造过期/未过期数据）。"""
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return (datetime.now(timezone.utc) + timedelta(seconds=offset_seconds)).isoformat()
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def _db_with_workflow(tmp_path: Path) -> Database:
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"""建好工作流（任务表对 workflow_id 有外键约束）的临时库。"""
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db = Database(tmp_path / "wov.db")
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db.upsert_workflow({"id": "wf", "name": "流程", "description": ""})
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db.create_workflow_version("wf", 1, {"nodes": []})
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return db
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def _run(run_id: str, **overrides) -> dict:
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"""构造真实任务记录。"""
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record = {
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"id": run_id, "workflow_id": "wf", "workflow_version": 1, "status": "COMPLETED",
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"current_node_id": None, "progress": 1.0, "error": None, "input_uri": None,
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"param_overrides": None, "source": "upload",
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"created_at": _now_iso(-7200), "updated_at": _now_iso(-7200),
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}
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record.update(overrides)
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return record
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def _cleaner(db: Database, storage: Path, grace_seconds: int = 3600) -> OrphanCleaner:
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"""构造清理器（不启动后台线程，直接调用 clean_once）。"""
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return OrphanCleaner(db, storage, interval_seconds=999, grace_seconds=grace_seconds)
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# ---------------------------------------------------------------------------
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# 残留目录清理
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# ---------------------------------------------------------------------------
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def test_removes_dangling_upload_and_run_dirs(tmp_path: Path) -> None:
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"""无对应任务记录的 uploads/runs 残留目录被删除。"""
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# 数据：两个残留目录（库中无记录）。
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storage = tmp_path / "storage"
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(storage / "uploads" / "ghost-1").mkdir(parents=True)
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(storage / "runs" / "ghost-2").mkdir(parents=True)
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(storage / "uploads" / "ghost-1" / "video.mp4").write_bytes(b"data")
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db = _db_with_workflow(tmp_path)
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# 测试过程
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removed = _cleaner(db, storage).clean_once()
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# 验证结果：两个目录都被清除。
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assert removed == 2
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assert not (storage / "uploads" / "ghost-1").exists()
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assert not (storage / "runs" / "ghost-2").exists()
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def test_keeps_dirs_with_task_records(tmp_path: Path) -> None:
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"""有任务记录的目录不删（即使任务已完成）。"""
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# 数据：一个有效任务及其目录。
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storage = tmp_path / "storage"
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db = _db_with_workflow(tmp_path)
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db.create_run(_run("run-1"))
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(storage / "runs" / "run-1").mkdir(parents=True)
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(storage / "runs" / "run-1" / "out.srt").write_text("字幕", encoding="utf-8")
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# 测试过程
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_cleaner(db, storage).clean_once()
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# 验证结果：目录与任务记录都保留。
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assert (storage / "runs" / "run-1" / "out.srt").is_file()
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assert db.get_run("run-1") is not None
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# ---------------------------------------------------------------------------
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# 任务记录清理
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# ---------------------------------------------------------------------------
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def test_removes_expired_completed_run_without_files(tmp_path: Path) -> None:
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"""COMPLETED、超过宽限期、产物文件全失的任务记录被删除。"""
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# 数据：过期完成任务，目录为空。
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storage = tmp_path / "storage"
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db = _db_with_workflow(tmp_path)
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db.create_run(_run("run-1"))
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(storage / "runs" / "run-1").mkdir(parents=True)
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# 测试过程
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removed = _cleaner(db, storage).clean_once()
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# 验证结果
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assert removed == 1
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assert db.get_run("run-1") is None
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def test_keeps_failed_run(tmp_path: Path) -> None:
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"""FAILED 任务绝不自动删除（用户可重试）。"""
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# 数据：过期失败任务，无产物文件。
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storage = tmp_path / "storage"
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db = _db_with_workflow(tmp_path)
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db.create_run(_run("run-failed", status="FAILED", error="boom"))
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# 测试过程
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removed = _cleaner(db, storage).clean_once()
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# 验证结果
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assert removed == 0
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assert db.get_run("run-failed") is not None
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def test_keeps_running_and_queued_runs(tmp_path: Path) -> None:
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"""QUEUED / RUNNING 任务不删（可能仍在执行或等待执行）。"""
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# 数据：排队中与运行中的任务。
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storage = tmp_path / "storage"
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db = _db_with_workflow(tmp_path)
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db.create_run(_run("run-q", status="QUEUED"))
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db.create_run(_run("run-r", status="RUNNING"))
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# 测试过程
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removed = _cleaner(db, storage).clean_once()
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# 验证结果
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assert removed == 0
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assert db.get_run("run-q") is not None
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assert db.get_run("run-r") is not None
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def test_keeps_completed_run_within_grace_period(tmp_path: Path) -> None:
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"""宽限期内的完成任务不删（下载可能还在进行）。"""
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# 数据：刚完成、无产物文件的任务。
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storage = tmp_path / "storage"
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db = _db_with_workflow(tmp_path)
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db.create_run(_run("run-fresh", updated_at=_now_iso(-10)))
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# 测试过程
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removed = _cleaner(db, storage, grace_seconds=3600).clean_once()
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# 验证结果
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assert removed == 0
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assert db.get_run("run-fresh") is not None
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def test_keeps_completed_run_with_existing_files(tmp_path: Path) -> None:
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"""仍有产物文件的完成任务不删（下载仍可用）。"""
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# 数据：过期但产物仍存在的任务。
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storage = tmp_path / "storage"
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db = _db_with_workflow(tmp_path)
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db.create_run(_run("run-1"))
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payload = storage / "runs" / "run-1" / "finals" / "out.srt"
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payload.parent.mkdir(parents=True)
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payload.write_text("字幕", encoding="utf-8")
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# 测试过程
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removed = _cleaner(db, storage).clean_once()
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# 验证结果
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assert removed == 0
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assert payload.is_file()
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def test_skips_batch_source_runs(tmp_path: Path) -> None:
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"""source=batch 的运行跳过清理（工作空间在私有层级，用户媒体目录必须保留）。"""
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# 数据：过期完成的批量运行，产物不在主 runs 目录下。
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storage = tmp_path / "storage"
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db = _db_with_workflow(tmp_path)
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db.create_run(_run("run-batch", source="batch"))
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# 用户媒体目录（若被误删会造成数据丢失）。
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media_dir = tmp_path / "user-videos"
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media_dir.mkdir()
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(media_dir / "movie.mp4").write_bytes(b"video")
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# 测试过程
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removed = _cleaner(db, storage).clean_once()
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# 验证结果：批量 run 与用户媒体都保留。
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assert removed == 0
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assert db.get_run("run-batch") is not None
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assert (media_dir / "movie.mp4").is_file()
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def test_keeps_external_input_directory(tmp_path: Path) -> None:
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"""删除孤儿任务时不动其 input_uri 指向的外部目录（R01：不误删媒体库）。"""
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# 数据：过期完成、无产物的任务，但 input_uri 指向用户媒体目录。
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storage = tmp_path / "storage"
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db = _db_with_workflow(tmp_path)
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media_dir = tmp_path / "media"
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media_dir.mkdir()
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video = media_dir / "movie.mp4"
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video.write_bytes(b"video")
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db.create_run(_run("run-1", input_uri=str(video)))
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# 测试过程
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_cleaner(db, storage).clean_once()
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# 验证结果：任务记录被清理，但用户媒体目录完整保留。
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assert db.get_run("run-1") is None
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assert video.is_file()
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def test_invalid_timestamp_is_kept(tmp_path: Path) -> None:
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"""时间戳无法解析时保守保留（不因数据损坏误删）。"""
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# 数据：updated_at 非法。
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storage = tmp_path / "storage"
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db = _db_with_workflow(tmp_path)
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db.create_run(_run("run-1", updated_at="not-a-timestamp"))
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# 测试过程
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removed = _cleaner(db, storage).clean_once()
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# 验证结果
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assert removed == 0
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assert db.get_run("run-1") is not None
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# ---------------------------------------------------------------------------
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# 线程生命周期
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# ---------------------------------------------------------------------------
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def test_start_and_stop_are_idempotent(tmp_path: Path) -> None:
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"""start 重复调用不产生多个线程；stop 能正常结束线程。"""
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# 数据：清理器（间隔很大，循环来不及真正清理）。
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storage = tmp_path / "storage"
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db = _db_with_workflow(tmp_path)
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cleaner = OrphanCleaner(db, storage, interval_seconds=999, grace_seconds=3600)
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# 测试过程
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cleaner.start()
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first_thread = cleaner._thread
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cleaner.start()
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second_thread = cleaner._thread
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cleaner.stop()
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# 验证结果：同一线程对象，停止后引用清空。
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assert first_thread is second_thread
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assert cleaner._thread is None
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def test_stop_without_start_is_safe(tmp_path: Path) -> None:
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"""未启动就 stop 不报错。"""
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# 数据：未启动的清理器。
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db = _db_with_workflow(tmp_path)
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# 测试过程与验证结果：不抛异常。
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OrphanCleaner(db, tmp_path / "storage").stop()
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