fix(test): 修复test_dedup_pure收集阶段db连接副作用(P0) #894

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CI Bot c10552dae1 fix(test): 修复test_dedup_pure收集阶段db连接副作用
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根因:video_processing/dedup.py 顶层import worker_app.db,
而 db.py 模块加载时就执行 ensure_database_exists() 触发数据库连接。
纯函数测试不需要任何db/celery/cv2依赖。

修复:在测试模块顶部预先mock掉所有有副作用的模块
(cv2/celery/sqlalchemy/worker_app/packages.adapters/packages.shared),
确保 import dedup 时不会触发真实的数据库连接。

20 passed 
2026-07-25 16:49:47 +08:00