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285 lines
10 KiB
Python
285 lines
10 KiB
Python
"""baostock 自动兜底数据源单测（离线，注入假 baostock 模块）。
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覆盖：参数映射（代码/周期/复权）、offset 切片语义、停牌日剔除、
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可用性门控（环境变量 / 未安装）、/bars 与 /bars/index 的端到端兜底、
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TDX 正常时绝不触发兜底。
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"""
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from __future__ import annotations
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import sys
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import types
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import pandas as pd
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import pytest
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# ---------------------------------------------------------------------------
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# 假 baostock 模块
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# ---------------------------------------------------------------------------
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class _FakeLoginResult:
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error_code = "0"
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error_msg = ""
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class _FakeResultData:
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def __init__(self, rows: list[list[str]]):
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self._rows = rows
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self._i = 0
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self.error_code = "0"
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self.error_msg = ""
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def next(self) -> bool:
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if self._i < len(self._rows):
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self._i += 1
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return True
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return False
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def get_row_data(self) -> list[str]:
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return self._rows[self._i - 1]
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def _fake_rows(n: int, end: str = "2026-09-04") -> list[list[str]]:
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"""n 个交易日的日线行：date, open, high, low, close, volume, amount, tradestatus。"""
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dates = pd.bdate_range(end=end, periods=n).strftime("%Y-%m-%d")
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return [[d, "10.0", "11.0", "9.5", "10.5", "100000", "1050000.0", "1"] for d in dates]
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def _install_fake_bs(
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rows: list[list[str]] | None,
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captured: dict,
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*,
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query_error: bool = False,
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) -> types.ModuleType:
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mod = types.ModuleType("baostock")
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def _login(): # type: ignore[no-untyped-def]
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captured["login"] = captured.get("login", 0) + 1
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return _FakeLoginResult()
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mod.login = _login # type: ignore[attr-defined]
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mod.logout = lambda: None # type: ignore[attr-defined]
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def query_history_k_data_plus(**kwargs): # type: ignore[no-untyped-def]
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captured.update(kwargs)
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captured["calls"] = captured.get("calls", 0) + 1
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if query_error:
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result = _FakeResultData([])
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result.error_code = "10001"
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result.error_msg = "网络异常"
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return result
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return _FakeResultData(rows or [])
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mod.query_history_k_data_plus = query_history_k_data_plus # type: ignore[attr-defined]
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sys.modules["baostock"] = mod
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return mod
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@pytest.fixture()
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def fake_bs(monkeypatch: pytest.MonkeyPatch):
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"""注入假模块 + 复位模块级登录态；测试结束移除。"""
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from easy_tdx.sources import baostock as bs_source
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captured: dict = {}
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monkeypatch.setattr(bs_source, "_logged_in", False)
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monkeypatch.delenv(bs_source.BAOSTOCK_DISABLE_ENV, raising=False)
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_install_fake_bs(_fake_rows(10), captured)
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yield captured
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sys.modules.pop("baostock", None)
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# ---------------------------------------------------------------------------
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# 源模块行为
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# ---------------------------------------------------------------------------
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def test_fetch_maps_args_and_matches_contract(fake_bs):
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"""代码/周期/复权映射正确；输出列序与 vol 单位（股，不换算）符合 /bars 契约。"""
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from easy_tdx.sources import baostock as bs_source
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df = bs_source.fetch_bars("SH", "600519", "DAY", 0, 5, "QFQ")
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assert df is not None and len(df) == 5
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assert list(df.columns) == ["date", "open", "close", "high", "low", "vol", "amount"]
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assert fake_bs["code"] == "sh.600519"
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assert fake_bs["frequency"] == "d"
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assert fake_bs["adjustflag"] == "2" # QFQ
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# 时间升序，最后一根是最新交易日
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assert df["date"].iloc[-1] == pd.Timestamp("2026-09-04")
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assert (df["vol"] == 100000).all() # baostock volume=股，与 /bars 契约一致，不换算
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def test_offset_slice_matches_tdx_semantics(fake_bs):
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"""start=跳过最新 N 根：30 根里 start=5, count=10 → 返回第 16~25 根。"""
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from easy_tdx.sources import baostock as bs_source
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_install_fake_bs(_fake_rows(30), fake_bs)
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df = bs_source.fetch_bars("SZ", "000001", "DAY", 5, 10, "QFQ")
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assert df is not None and len(df) == 10
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dates = df["date"].dt.strftime("%Y-%m-%d").tolist()
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expected = pd.bdate_range(end="2026-09-04", periods=30).strftime("%Y-%m-%d").tolist()
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assert dates[0] == expected[15]
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assert dates[-1] == expected[24]
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def test_suspension_rows_dropped(fake_bs):
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"""停牌日（tradestatus=0 / volume=0）剔除，对齐通达信 K 线口径。"""
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rows = _fake_rows(6)
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rows[2] = [rows[2][0], "0", "0", "0", "0", "0", "0", "0"] # 停牌日
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_install_fake_bs(rows, fake_bs)
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from easy_tdx.sources import baostock as bs_source
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df = bs_source.fetch_bars("SZ", "000001", "DAY", 0, 10, "QFQ")
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assert df is not None and len(df) == 5
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assert (df["vol"] > 0).all()
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def test_disabled_via_env(fake_bs, monkeypatch: pytest.MonkeyPatch):
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"""EASY_TDX_BAOSTOCK=0 显式关闭：不安装也不调用。"""
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from easy_tdx.sources import baostock as bs_source
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monkeypatch.setenv(bs_source.BAOSTOCK_DISABLE_ENV, "0")
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assert bs_source.is_enabled() is False
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assert bs_source.fetch_bars("SH", "600519", "DAY", 0, 5, "QFQ") is None
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assert "login" not in fake_bs
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def test_missing_module_returns_none(monkeypatch: pytest.MonkeyPatch):
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"""未安装 baostock：静默返回 None（兜底环自动关闭）。"""
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monkeypatch.delenv("EASY_TDX_BAOSTOCK", raising=False)
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monkeypatch.setitem(sys.modules, "baostock", None) # import 时抛 ImportError
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from easy_tdx.sources import baostock as bs_source
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assert bs_source.is_enabled() is False
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assert bs_source.fetch_bars("SH", "600519", "DAY", 0, 5, "QFQ") is None
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def test_unsupported_inputs(fake_bs):
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"""BJ 市场 / 分钟线周期 / 非法复权 / 超大窗口：不适用即 None。"""
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from easy_tdx.sources import baostock as bs_source
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assert bs_source.fetch_bars("BJ", "430047", "DAY", 0, 5, "QFQ") is None
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assert bs_source.fetch_bars("SH", "600519", "MIN_5", 0, 5, "QFQ") is None
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assert bs_source.fetch_bars("SH", "600519", "SEASON", 0, 5, "QFQ") is None
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assert bs_source.fetch_bars("SH", "600519", "DAY", 0, 5, "FOO") is None
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assert bs_source.fetch_bars("SH", "600519", "DAY", 99999, 800, "QFQ") is None
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assert "calls" not in fake_bs
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def test_query_error_returns_none(fake_bs):
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"""baostock 查询失败：返回 None 且不向上抛（兜底失败不改变原错误路径）。"""
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_install_fake_bs([], fake_bs, query_error=True)
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from easy_tdx.sources import baostock as bs_source
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assert bs_source.fetch_bars("SH", "600519", "DAY", 0, 5, "QFQ") is None
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# ---------------------------------------------------------------------------
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# /bars 与 /bars/index 端到端兜底
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# ---------------------------------------------------------------------------
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def _bars_app(mac_client, tdx_client):
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from fastapi import FastAPI
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from easy_tdx.web.errors import register_exception_handlers
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from easy_tdx.web.routers import bars
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app = FastAPI()
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register_exception_handlers(app)
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app.include_router(bars.router, prefix="/api/v1")
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app.state.tdx_client = tdx_client
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app.state.mac_client = mac_client
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return app
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class _RaisingMac:
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async def get_stock_kline(self, *args, **kwargs): # noqa: ANN002, ANN003
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raise RuntimeError("MAC 连接失败")
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class _RaisingTdx:
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async def get_security_bars(self, *args, **kwargs): # noqa: ANN002, ANN003
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raise RuntimeError("标准协议连接失败")
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async def get_index_bars(self, *args, **kwargs): # noqa: ANN002, ANN003
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raise RuntimeError("标准协议连接失败")
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class _OkMac:
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async def get_stock_kline(self, *args, **kwargs): # noqa: ANN002, ANN003
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return pd.DataFrame(
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{
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"datetime": pd.bdate_range(end="2026-09-04", periods=5),
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"open": [10.0] * 5,
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"close": [10.5] * 5,
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"high": [11.0] * 5,
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"low": [9.5] * 5,
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"vol": [100000] * 5,
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"amount": [1050000.0] * 5,
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"float_shares": [0.0] * 5,
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}
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)
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def test_bars_endpoint_falls_back_to_baostock(fake_bs, monkeypatch: pytest.MonkeyPatch):
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"""MAC 与标准协议都失败 → baostock 兜底命中，响应带 source 字段。"""
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pytest.importorskip("fastapi")
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from fastapi.testclient import TestClient
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_install_fake_bs(_fake_rows(10), fake_bs)
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with TestClient(_bars_app(_RaisingMac(), _RaisingTdx())) as client:
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resp = client.get("/api/v1/bars", params={"market": "SH", "code": "600519"})
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assert resp.status_code == 200
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body = resp.json()
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assert body["source"] == "baostock"
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assert body["count"] == 10
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assert "date" in body["data"][0]
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assert "change_pct" in body["data"][0]
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def test_bars_endpoint_tdx_ok_never_calls_baostock(fake_bs):
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"""TDX 正常出数时兜底绝不触发：source 为 None，baostock 零调用。"""
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pytest.importorskip("fastapi")
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from fastapi.testclient import TestClient
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with TestClient(_bars_app(_OkMac(), _RaisingTdx())) as client:
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resp = client.get("/api/v1/bars", params={"market": "SH", "code": "600519"})
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assert resp.status_code == 200
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body = resp.json()
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assert body["source"] is None
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assert body["count"] == 5
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assert "login" not in fake_bs
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def test_bars_endpoint_no_fallback_available_keeps_error(fake_bs, monkeypatch: pytest.MonkeyPatch):
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"""TDX 全败且兜底不可用：维持原错误语义（500），不返回空数据伪装成功。"""
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pytest.importorskip("fastapi")
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from fastapi.testclient import TestClient
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monkeypatch.delenv("EASY_TDX_BAOSTOCK", raising=False)
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monkeypatch.setitem(sys.modules, "baostock", None)
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# raise_server_exceptions=False：模拟生产环境由服务端中间件返回 500
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with TestClient(
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_bars_app(_RaisingMac(), _RaisingTdx()), raise_server_exceptions=False
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) as client:
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resp = client.get("/api/v1/bars", params={"market": "SH", "code": "600519"})
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assert resp.status_code == 500
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assert "连接失败" in resp.json()["detail"]
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def test_index_endpoint_falls_back_to_baostock(fake_bs):
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"""/bars/index：TDX 失败 → baostock 兜底（指数代码同格式）。"""
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pytest.importorskip("fastapi")
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from fastapi.testclient import TestClient
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_install_fake_bs(_fake_rows(10), fake_bs)
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with TestClient(_bars_app(None, _RaisingTdx())) as client:
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resp = client.get(
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"/api/v1/bars/index", params={"market": "SH", "code": "000001", "category": "DAY"}
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)
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assert resp.status_code == 200
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body = resp.json()
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assert body["source"] == "baostock"
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assert fake_bs["code"] == "sh.000001"
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