wip: qa7920 sidecar + rag stream timeout

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

tests/unit/test_rag_stream_frontend_contract.py

@@ -0,0 +1,39 @@
+from pathlib import Path
+
+import pytest
+
+
+FRONTEND_DIR = Path(__file__).resolve().parents[2] / "apps" / "web" / "vue3"
+PAGE_NAMES = ("index.html", "index_ml.html")
+PAGE_SOURCES = {
+    name: (FRONTEND_DIR / name).read_text(encoding="utf-8")
+    for name in PAGE_NAMES
+}
+
+
+def _source(name: str) -> str:
+    return PAGE_SOURCES[name]
+
+
+@pytest.mark.parametrize("name", PAGE_NAMES)
+def test_rag_mode_uses_streaming_request(name: str) -> None:
+    source = _source(name)
+    start = source.index("// V2: RAG模式")
+    end = source.index("} catch (err)", start)
+    rag_block = source[start:end]
+
+    assert "requestRagWithProgress(" in rag_block
+    assert "fetchJsonWithTimeout('/api/agent/rag'" not in rag_block
+
+
+@pytest.mark.parametrize("name", PAGE_NAMES)
+def test_rag_stream_timeout_is_reset_after_each_received_chunk(name: str) -> None:
+    source = _source(name)
+    start = source.index("const readRagEventStream")
+    end = source.index("const requestRagWithProgress", start)
+    stream_block = source[start:end]
+    read_position = stream_block.index("const { value, done } = await reader.read();")
+
+    assert "const resetIdleTimer = () =>" in stream_block
+    assert stream_block.index("resetIdleTimer();", read_position) > read_position
+    assert "知识库检索连接空闲超时" in stream_block

tests/unit/test_rag_stream_proxy_contract.py

@@ -0,0 +1,28 @@
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[2]
+MAIN = ROOT / "apps" / "web" / "vue3" / "main.py"
+MAIN_SOURCE = MAIN.read_text(encoding="utf-8")
+
+
+def _rag_routes() -> str:
+    start = MAIN_SOURCE.index('@app.post("/api/agent/rag")')
+    end = MAIN_SOURCE.index("# ==================== DiagnosisAgent API", start)
+    return MAIN_SOURCE[start:end]
+
+
+def test_rag_proxy_has_no_inline_150_second_timeout() -> None:
+    routes = _rag_routes()
+
+    assert "timeout=150.0" not in routes
+    assert "complete QA exceeded 150 seconds" not in routes
+    assert "完整知识图谱问答超过 150 秒" not in routes
+
+
+def test_rag_stream_proxy_preserves_upstream_sse_frames() -> None:
+    routes = _rag_routes()
+
+    assert "for frame in stream_dual_kb_qa(" in routes
+    assert "yield frame" in routes
+    assert 'media_type="text/event-stream"' in routes