補 PPT AiderHeal 去重鎖

tests/test_admin_observability_routes.py

@@ -565,6 +565,51 @@ def test_ppt_audit_trigger_aider_heal_accepts_issue_summary(client, monkeypatch)
     assert captured['context']['issue_summary'] == 'S1: 圖表被切掉：右側圖例超出邊界'
 
 
+def test_ppt_audit_trigger_aider_heal_dedupes_same_file(client, monkeypatch):
+    """同一份 PPT 已在背景修復時，重複按鈕不應重開第二條 AiderHeal。"""
+    from routes import admin_observability_routes as mod
+    from services import aider_heal_executor as svc
+
+    calls = []
+
+    def fake_execute_code_fix(**kwargs):
+        calls.append(kwargs)
+        return {
+            'success': True,
+            'action': 'CODE_FIX',
+            'message': '不應在此測試執行',
+            'commit_sha': None,
+            'reverted': False,
+        }
+
+    class HoldingThread:
+        def __init__(self, target, **_kwargs):
+            self.target = target
+
+        def start(self):
+            return None
+
+    monkeypatch.setattr(svc, 'execute_code_fix', fake_execute_code_fix)
+    monkeypatch.setattr(mod.threading, 'Thread', HoldingThread)
+    mod._PPT_AIDER_HEAL_ACTIVE.clear()
+
+    payload = {
+        'pptx_filename': 'ocbot_daily_20260517.pptx',
+        'issue_summary': 'S1: 圖表被切掉：右側圖例超出邊界',
+    }
+    first = client.post('/observability/ppt_audit/trigger_aider_heal', json=payload)
+    second = client.post('/observability/ppt_audit/trigger_aider_heal', json=payload)
+
+    try:
+        assert first.status_code == 202
+        assert first.get_json()['status'] == 'queued'
+        assert second.status_code == 202
+        assert second.get_json()['status'] == 'already_running'
+        assert calls == []
+    finally:
+        mod._PPT_AIDER_HEAL_ACTIVE.clear()
+
+
 # ──────────────────────────────────────────────────────────────────────────
 # /observability/host_health
 # ──────────────────────────────────────────────────────────────────────────