feat: add adversarial_verdicts table with resume and terminal-verdict query

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tests/unit/test_adversarial_verdicts_store.py

@@ -0,0 +1,93 @@
+"""adversarial_verdicts 表：写入 / 续跑查询 / agent_config 作废 / 正确率聚合。"""
+
+from app.question_gen.run_store import QuestionGenStore
+
+
+def _store(tmp_path):
+    return QuestionGenStore(str(tmp_path / "q.db"))
+
+
+def _row(**kw):
+    base = {
+        "question_id": "v1_Action Recognition_0001", "round": 0, "stage": "cheat",
+        "question_hash": "h1", "agent_prediction": "B", "agent_correct": False,
+        "verdict": "passed", "pair_id": None, "agent_config": "cfg1",
+    }
+    base.update(kw)
+    return base
+
+
+def test_table_created(tmp_path):
+    store = _store(tmp_path)
+    cols = {r[1] for r in store._conn.execute("PRAGMA table_info(adversarial_verdicts)")}
+    assert {"question_id", "round", "stage", "question_hash", "agent_prediction",
+            "agent_correct", "verdict", "pair_id", "agent_config"} <= cols
+    store.close()
+
+
+def test_record_and_resume_lookup(tmp_path):
+    store = _store(tmp_path)
+    store.record_verdict(**_row(stage="cheat"))
+    done = store.completed_stages("v1_Action Recognition_0001", "h1", "cfg1")
+    assert done == {"cheat"}
+    # 不同 hash 视为未完成
+    assert store.completed_stages("v1_Action Recognition_0001", "h2", "cfg1") == set()
+    store.close()
+
+
+def test_agent_config_change_invalidates(tmp_path):
+    store = _store(tmp_path)
+    store.record_verdict(**_row(stage="cheat"))
+    store.invalidate_stale_config("v1_Action Recognition_0001", "cfg2")
+    # 旧 config 行必须被真正删除（不能只靠 cfg2 查空——no-op 也满足那个弱断言）
+    assert store.completed_stages("v1_Action Recognition_0001", "h1", "cfg1") == set()
+    cfg1_rows = store._conn.execute(
+        "SELECT COUNT(*) FROM adversarial_verdicts WHERE agent_config='cfg1'"
+    ).fetchone()[0]
+    assert cfg1_rows == 0
+    assert store.completed_stages("v1_Action Recognition_0001", "h1", "cfg2") == set()
+    store.close()
+
+
+def test_upsert_same_key_overwrites(tmp_path):
+    store = _store(tmp_path)
+    store.record_verdict(**_row(agent_prediction="A"))
+    store.record_verdict(**_row(agent_prediction="C"))
+    rows = store._conn.execute(
+        "SELECT agent_prediction FROM adversarial_verdicts "
+        "WHERE question_id=? AND question_hash=? AND stage=?",
+        ("v1_Action Recognition_0001", "h1", "cheat"),
+    ).fetchall()
+    assert len(rows) == 1 and rows[0][0] == "C"
+    store.close()
+
+
+def test_cheat_accuracy_aggregation(tmp_path):
+    store = _store(tmp_path)
+    store.record_verdict(**_row(question_id="q1", question_hash="a", agent_correct=True))
+    store.record_verdict(**_row(question_id="q2", question_hash="b", agent_correct=False))
+    store.record_verdict(**_row(question_id="q3", question_hash="c", agent_correct=True))
+    assert store.cheat_agent_accuracy(round_no=0) == 2 / 3
+    store.close()
+
+
+def test_final_passed_question_ids_survives_both_gates(tmp_path):
+    store = _store(tmp_path)
+    # q1 太简单被作弊门剔除；q2 过两门；q3 被翻转门剔除（filtered_no_flip）
+    store.record_verdict(**_row(question_id="q1", question_hash="a", stage="cheat",
+                                verdict="filtered_too_easy"))
+    store.record_verdict(**_row(question_id="q2", question_hash="b", stage="cheat",
+                                verdict="passed"))
+    store.record_verdict(**_row(question_id="q3", question_hash="c", stage="cheat",
+                                verdict="passed"))
+    store.record_verdict(**_row(question_id="q3", question_hash="c", stage="flip_mirror",
+                                verdict="filtered_no_flip"))
+    passed = store.final_passed_question_ids(
+        {"q1": "a", "q2": "b", "q3": "c"}, "cfg1"
+    )
+    assert passed == {"q2"}  # 仅 q2：cheat=passed 且无 filtered_no_flip
+    # stale hash 不泄漏（当前 hash 不匹配旧行）
+    assert store.final_passed_question_ids({"q2": "stale"}, "cfg1") == set()
+    # stale config 不泄漏
+    assert store.final_passed_question_ids({"q2": "b"}, "cfgX") == set()
+    store.close()