fix: 防止分页漏读和上游异常快照误标 orphaned

backend/test_website_client.py

@@ -326,3 +326,76 @@ def test_list_accounts_pagination():
         assert "page=2" in str(requests_called[1].url)
     finally:
         client.close()
+
+
+def test_list_accounts_pagination_single_large_page_does_not_refetch():
+    from app.services.website_client import Sub2ApiWebsiteClient
+
+    requests_called = []
+
+    def handler(req: httpx.Request) -> httpx.Response:
+        requests_called.append(req)
+        return httpx.Response(200, json={
+            "total": 2,
+            "page": 1,
+            "page_size": 100,
+            "pages": 1,
+            "data": [
+                {"id": "a1", "name": "acc1"},
+                {"id": "a2", "name": "acc2"},
+            ],
+        }, request=req)
+
+    client = Sub2ApiWebsiteClient(
+        base_url="https://target.example",
+        api_prefix="/api/v1/admin",
+        auth_type="api_key",
+        auth_config={"key": "admin-key"},
+    )
+    client._client = httpx.Client(transport=httpx.MockTransport(handler))
+
+    try:
+        accounts = client.list_accounts("/accounts")
+        assert accounts == [
+            {"id": "a1", "name": "acc1"},
+            {"id": "a2", "name": "acc2"},
+        ]
+        assert len(requests_called) == 1
+        assert "page_size=100" in str(requests_called[0].url)
+    finally:
+        client.close()
+
+
+def test_list_accounts_pagination_returns_none_when_any_page_fails():
+    from app.services.website_client import Sub2ApiWebsiteClient
+
+    requests_called = []
+
+    def handler(req: httpx.Request) -> httpx.Response:
+        requests_called.append(req)
+        if "page=1" in str(req.url):
+            return httpx.Response(200, json={
+                "total": 3,
+                "page": 1,
+                "page_size": 2,
+                "pages": 2,
+                "data": [
+                    {"id": "a1", "name": "acc1"},
+                    {"id": "a2", "name": "acc2"},
+                ],
+            }, request=req)
+        return httpx.Response(500, json={"error": "failed"}, request=req)
+
+    client = Sub2ApiWebsiteClient(
+        base_url="https://target.example",
+        api_prefix="/api/v1/admin",
+        auth_type="api_key",
+        auth_config={"key": "admin-key"},
+    )
+    client._client = httpx.Client(transport=httpx.MockTransport(handler))
+
+    try:
+        assert client.list_accounts("/accounts") is None
+        assert len(requests_called) == 2
+    finally:
+        client.close()