test(cheap): test_a11_m3/m4 模块级 game_dir/dedup 替换收进可恢复 autouse fixture——根除 game_dir 跨模块隔离污染(基线二分钉死:5 个失败,非 12) (尾波小单)

test_a11_m3_deterministic 与 test_a11_m4_regenerate 在 import 时无恢复地替换
cheap_run.game_dir(两文件同构),污染同会话后续测试模块:受害者按真 games/ 根校验
write 边界,game_dir 被改指临时目录后一写即判越界。改为 module 级 autouse fixture
(yield 后恢复原值),__main__ 独立运行路径同装(单进程无需恢复),dedup 登记表一并收拢。

证据:全套 12→7 failed、三种文件顺序结果恒定(7 failed / 322 passed);二分钉死纯
game_dir 污染 = 5 个,均已恢复 = test_run::test_scaffold + test_toolkit::{write_l1_rejected,
write_l3_ok,check_shape_drawbutton_ok,check_shape_define_fail}。

余 7 个非本污染、隔离下同红,系环境前置:worktree 无 esbuild →
test_run::{test_stage,test_play_real}、test_toolkit::test_check_and_build_clean_pass;
缺真实 e2e 产物 → test_studio_smoke×4(须先跑 cheap_studio 单局)。须集成段 mini-desktop
才具备,未纳入本单。同族但未致失败的 test_worker_service 模块级 dedup 泄漏按最小改动未动。

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

cheap-worker/tests/test_a11_m3_deterministic.py

@@ -20,13 +20,30 @@ import cheap_run  # noqa: E402
 import cheap_modify as M  # noqa: E402
 import worker_service as W  # noqa: E402
 import dedup  # noqa: E402
+import pytest  # noqa: E402
 
-# 把 game_dir 重定向到临时目录:materialize / worker 接线测试落盘免污染真 games/(与 cheap_modify、worker_service
-#   同引用一个 cheap_run 模块对象 → patch 模块属性即对二者生效)。
-_TMP_GAMES = Path(tempfile.mkdtemp(prefix="a11-m3-games-"))
-cheap_run.game_dir = lambda gid: _TMP_GAMES / f"amgen-{gid}"  # noqa: E731
-# create 路会调 D9 dedup.check_similarity(写 FS 登记表)→ 重定向防污染真登记表(与 test_worker_service 同范式)。
-dedup.DEDUP_REGISTRY = Path(tempfile.mkdtemp(prefix="a11m3-dedup-")) / "_dedup_registry.jsonl"
+# game_dir 与 dedup 登记表在本模块测试期间重定向到临时目录:materialize、worker 接线、create 路(D9 dedup)
+# 的落盘都进临时目录,不碰真 games/ 与真登记表(cheap_modify、worker_service 与本模块同引用一个 cheap_run
+# 模块对象,改模块属性即对三者同时生效)。重定向收进 autouse fixture:只在本模块测试期间生效、跑完即恢复
+# 原值,不再像早先那样在 import 时无恢复地替换 cheap_run.game_dir——那样会污染同会话后续的 test_run /
+# test_studio_smoke / test_toolkit(它们按真 games/ 根校验 write 边界,game_dir 被换后一写就判越界)。
+def _install_tmp_redirect():
+    """把 cheap_run.game_dir、dedup.DEDUP_REGISTRY 指向新建临时目录,返回二者原值供恢复。"""
+    orig = (cheap_run.game_dir, dedup.DEDUP_REGISTRY)
+    tmp_games = Path(tempfile.mkdtemp(prefix="a11-m3-games-"))
+    cheap_run.game_dir = lambda gid: tmp_games / f"amgen-{gid}"  # noqa: E731
+    dedup.DEDUP_REGISTRY = Path(tempfile.mkdtemp(prefix="a11m3-dedup-")) / "_dedup_registry.jsonl"
+    return orig
+
+
+@pytest.fixture(autouse=True, scope="module")
+def _tmp_redirect():
+    orig_game_dir, orig_registry = _install_tmp_redirect()
+    try:
+        yield
+    finally:
+        cheap_run.game_dir = orig_game_dir
+        dedup.DEDUP_REGISTRY = orig_registry
 
 _GOOD_BUNDLE = "var __GameBundle=(function(){return{bootGameHost(){}}})();"
 
@@ -287,6 +304,7 @@ def test_create_path_unaffected_by_modify_wiring():
 
 
 if __name__ == "__main__":
+    _install_tmp_redirect()  # 独立运行(非 pytest,autouse fixture 不触发):单进程一次性装重定向,退出即释放、无需恢复
     _fns = [v for k, v in sorted(globals().items()) if k.startswith("test_") and callable(v)]
     _failed = 0
     for _fn in _fns:

cheap-worker/tests/test_a11_m4_regenerate.py

@@ -22,13 +22,29 @@ import cheap_run  # noqa: E402
 import cheap_modify as M  # noqa: E402
 import worker_service as W  # noqa: E402
 import dedup  # noqa: E402
+import pytest  # noqa: E402
 
-# game_dir 重定向到临时目录:materialize / 接线落盘免污染真 games/(cheap_modify、worker_service 同引用一个
-#   cheap_run 模块对象 → patch 模块属性即对二者生效;与 test_a11_m3 同范式)。
-_TMP_GAMES = Path(tempfile.mkdtemp(prefix="a11-m4-games-"))
-cheap_run.game_dir = lambda gid: _TMP_GAMES / f"amgen-{gid}"  # noqa: E731
-# 防 D9 dedup 写真登记表(本测不走 create 路、稳妥起见仍重定向)。
-dedup.DEDUP_REGISTRY = Path(tempfile.mkdtemp(prefix="a11m4-dedup-")) / "_dedup_registry.jsonl"
+# game_dir 与 dedup 登记表在本模块测试期间重定向到临时目录:materialize、worker 接线的落盘都进临时目录,
+# 不碰真 games/(cheap_modify、worker_service 与本模块同引用一个 cheap_run 模块对象,改模块属性即对三者同时
+# 生效);本测虽不走 create 路,dedup 登记表仍一并重定向以防万一。重定向收进 autouse fixture:只在本模块测试
+# 期间生效、跑完即恢复原值,不再在 import 时无恢复地替换 cheap_run.game_dir 而污染同会话后续测试模块。
+def _install_tmp_redirect():
+    """把 cheap_run.game_dir、dedup.DEDUP_REGISTRY 指向新建临时目录,返回二者原值供恢复。"""
+    orig = (cheap_run.game_dir, dedup.DEDUP_REGISTRY)
+    tmp_games = Path(tempfile.mkdtemp(prefix="a11-m4-games-"))
+    cheap_run.game_dir = lambda gid: tmp_games / f"amgen-{gid}"  # noqa: E731
+    dedup.DEDUP_REGISTRY = Path(tempfile.mkdtemp(prefix="a11m4-dedup-")) / "_dedup_registry.jsonl"
+    return orig
+
+
+@pytest.fixture(autouse=True, scope="module")
+def _tmp_redirect():
+    orig_game_dir, orig_registry = _install_tmp_redirect()
+    try:
+        yield
+    finally:
+        cheap_run.game_dir = orig_game_dir
+        dedup.DEDUP_REGISTRY = orig_registry
 
 _GOOD_BUNDLE = "var __GameBundle=(function(){return{bootGameHost(){}}})();"
 _BASE_LOGIC = "// base game-logic\nexport function createGame({ plugins, bundle, viewport }) { return {}; }\n"
@@ -262,6 +278,7 @@ def test_worker_unknown_mode_still_failed():
 
 
 if __name__ == "__main__":
+    _install_tmp_redirect()  # 独立运行(非 pytest,autouse fixture 不触发):单进程一次性装重定向,退出即释放、无需恢复
     _fns = [v for k, v in sorted(globals().items()) if k.startswith("test_") and callable(v)]
     _failed = 0
     for _fn in _fns: