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backend/smoke_test.py

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+"""开发自检脚本：跑一遍 /health 与 /backtest，打印结果。
+
+用 FastAPI TestClient（无需起服务器，同进程验证全链路）。
+用法： uv run --with httpx --directory backend python smoke_test.py
+"""
+import json
+
+from fastapi.testclient import TestClient
+
+from app.main import app
+
+# 必须用 with：lifespan（建表）只在进入上下文时执行
+with TestClient(app) as c:
+    r = c.get("/api/health")
+    print("== /api/health ==", r.status_code, r.json())
+
+    r = c.post(
+        "/api/backtest",
+        json={
+            "symbol": "DEMO",
+            "strategy": "macd_cross",
+            "params": {"fast": 12, "slow": 26, "signal": 9},
+            "initial_cash": 100000.0,
+            "fast_mode": False,
+        },
+    )
+    print("== /api/backtest ==", r.status_code)
+    if r.status_code != 200:
+        print("ERROR:", r.text)
+        raise SystemExit(1)
+
+    d = r.json()
+    print("candles      :", len(d["candles"]))
+    print("signals      :", len(d["signals"]), "(买卖点)")
+    print("equity pts   :", len(d["equity"]))
+    print("final_cash   :", round(d["final_cash"], 2))
+    print("final_pos    :", d["final_position"])
+    print("metrics      :", json.dumps(d["metrics"], ensure_ascii=False, indent=2))
+    print("first signal :", d["signals"][0] if d["signals"] else None)
+
+    assert len(d["candles"]) > 100
+
+    # 周期聚合：周线 K 线数应明显少于日线
+    rw = c.post(
+        "/api/backtest",
+        json={"symbol": "DEMO", "timeframe": "1w", "strategy": "macd_cross",
+              "params": {"fast": 12, "slow": 26, "signal": 9}, "initial_cash": 100000.0},
+    )
+    wd = rw.json()
+    print("== weekly ==", rw.status_code, "candles:", len(wd["candles"]), "vs daily", len(d["candles"]))
+    assert rw.status_code == 200
+    assert len(wd["candles"]) < len(d["candles"])
+
+    print("\n✅ 后端全链路自检通过（含周期聚合）")