feat(HEL-402): 接通网站首批只读 datahub 并建立双路对比
默认全部读取/影子开关关闭,网站继续走旧 Tushare 链路;开启单项时只替换该类原料并在失败时回旧,问天保持旧路径。 Co-authored-by: Cursor <cursoragent@cursor.com> Co-authored-by: multica-agent <github@multica.ai>
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co-authored by
Cursor
multica-agent
parent
f5dc0f8076
commit
0d13066386
@@ -67,6 +67,9 @@ class DataGatewayTests(unittest.TestCase):
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"TushareClient": {"backend/features/market/service.py"},
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"TushareProvider": {"backend/data/gateway.py"},
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"WebRealtimeAggregator": {"backend/data/gateway.py"},
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"DatahubClient": {"backend/data/gateway.py"},
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"DatahubAwareTushareClient": {"backend/data/gateway.py"},
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"DatahubBridge": {"backend/data/gateway.py"},
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}
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found = {name: set() for name in owners}
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for path in (root / "backend").rglob("*.py"):
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@@ -0,0 +1,254 @@
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from __future__ import annotations
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import ast
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import json
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import unittest
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from pathlib import Path
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from typing import Any
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from backend.data import build_data_gateway
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from backend.data.datahub.bridge import DatahubAwareTushareClient, DatahubBridge, looks_like_heaven
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from backend.data.datahub.client import DatahubClient, DatahubResponse
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from backend.data.datahub.compare import compare_rows
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from backend.data.datahub.errors import DatahubError
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from backend.data.datahub.native import to_canonical_row, to_native_row
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from backend.data.datahub.settings import DATASETS, DatahubSettings, DatasetFlags
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ROOT = Path(__file__).resolve().parents[1]
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TOKEN = "super-secret-datahub-token"
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LEGACY_DAILY = {
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"ts_code": "600000.SH",
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"trade_date": "20240902",
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"open": 10.11,
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"high": 10.25,
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"low": 10.01,
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"close": 10.20,
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"pct_chg": 1.2345,
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"vol": 1000.0,
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"amount": 2000.0,
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}
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HUB_DAILY = {
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"ts_code": "600000.SH",
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"trade_date": "20240902",
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"open": 10.11,
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"high": 10.25,
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"low": 10.01,
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"close": 10.20,
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"pct_chg": 1.2345,
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"volume": 100000.0,
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"amount": 2000000.0,
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}
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class FakeLegacy:
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def __init__(self, rows: list[dict[str, Any]] | Exception | None = None) -> None:
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self.token = "legacy-token"
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self.timeout = 30
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self.rows = [] if rows is None else rows
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self.calls: list[tuple[str, dict[str, Any] | None, str]] = []
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def query(self, api_name: str, params: dict[str, Any] | None = None, fields: str = "") -> list[dict[str, Any]]:
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self.calls.append((api_name, params, fields))
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if isinstance(self.rows, Exception):
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raise self.rows
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return [dict(row) for row in self.rows]
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class FakeClient(DatahubClient):
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def __init__(self, error: DatahubError | None = None, response: DatahubResponse | None = None) -> None:
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super().__init__(DatahubSettings(base_url="http://127.0.0.1:9", token=TOKEN))
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self.error = error
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self.response = response or DatahubResponse(
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data=[dict(HUB_DAILY)],
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meta={"tier": "official", "trade_date": "20240902", "stale": False, "staleness_seconds": 0},
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)
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self.paths: list[str] = []
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def get(self, path: str, params: dict[str, Any] | None = None) -> DatahubResponse:
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self.paths.append(path)
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if TOKEN in json.dumps(params or {}) or TOKEN in path:
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raise AssertionError("token leaked into url")
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if self.error:
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raise self.error
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return self.response
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def flags(**enabled: tuple[bool, bool]) -> DatahubSettings:
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datasets = {name: DatasetFlags(name) for name in DATASETS}
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for name, pair in enabled.items():
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datasets[name] = DatasetFlags(name, read=pair[0], shadow=pair[1])
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return DatahubSettings(base_url="http://127.0.0.1:9", token=TOKEN, datasets=datasets)
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class DatahubBridgeTests(unittest.TestCase):
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def test_default_config_keeps_legacy_and_does_not_call_datahub(self) -> None:
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settings = DatahubSettings.load(environ={}, credentials={})
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self.assertFalse(settings.any_enabled())
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self.assertTrue(all(not settings.flags(name).read and not settings.flags(name).shadow for name in DATASETS))
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client = FakeClient(error=DatahubError("INTERNAL", "should not be called"))
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legacy = FakeLegacy([LEGACY_DAILY])
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wrapped = DatahubAwareTushareClient(legacy, DatahubBridge(settings, client))
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rows = wrapped.query("daily", {"trade_date": "20240902"}, "ts_code,close,vol,amount")
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self.assertEqual(rows[0]["amount"], 2000.0)
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self.assertEqual(client.paths, [])
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self.assertEqual(len(legacy.calls), 1)
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def test_each_dataset_has_independent_read_flag(self) -> None:
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settings = flags(daily=(True, False), auction=(False, False))
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self.assertTrue(settings.flags("daily").read)
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self.assertFalse(settings.flags("auction").read)
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self.assertFalse(any(settings.flags(name).read for name in DATASETS if name != "daily"))
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source = (ROOT / "config" / "datahub.config.json").read_text(encoding="utf-8")
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self.assertNotIn("master", source)
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self.assertNotIn("DATAHUB_READ_ALL", source)
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def test_read_flag_replaces_only_that_dataset_and_converts_units(self) -> None:
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shadows: list[dict[str, Any]] = []
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client = FakeClient()
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legacy = FakeLegacy([LEGACY_DAILY])
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wrapped = DatahubAwareTushareClient(
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legacy,
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DatahubBridge(flags(daily=(True, False)), client, shadow_sink=shadows.append),
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)
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rows = wrapped.query("daily", {"trade_date": "20240902"}, "ts_code,vol,amount")
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self.assertEqual(rows[0]["vol"], 1000.0)
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self.assertEqual(rows[0]["amount"], 2000.0)
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self.assertEqual(legacy.calls, [])
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self.assertEqual(client.paths, ["/v1/bars/daily"])
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calendar_legacy = FakeLegacy([{"cal_date": "20240902", "is_open": 1}])
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calendar_client = FakeClient(error=DatahubError("INTERNAL", "nope"))
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calendar_wrapped = DatahubAwareTushareClient(
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calendar_legacy,
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DatahubBridge(flags(daily=(True, False)), calendar_client),
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)
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calendar = calendar_wrapped.query("trade_cal", {"start_date": "20240902", "end_date": "20240902"}, "")
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self.assertEqual(calendar[0]["is_open"], 1)
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self.assertEqual(calendar_client.paths, [])
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def test_fallback_on_down_401_timeout_empty_unpublished_and_stale(self) -> None:
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cases = [
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DatahubError("UNAVAILABLE", "down"),
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DatahubError("UNAUTHORIZED", "401"),
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DatahubError("TIMEOUT", "late"),
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DatahubError("EMPTY", "no rows"),
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DatahubError("DATASET_NOT_PUBLISHED", "not ready"),
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DatahubError("STALE", "old"),
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]
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for error in cases:
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with self.subTest(error=error.code):
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if error.code == "EMPTY":
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client = FakeClient(response=DatahubResponse(data=[], meta={"stale": False, "staleness_seconds": 0}))
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elif error.code == "STALE":
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client = FakeClient(response=DatahubResponse(
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data=[dict(HUB_DAILY)],
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meta={"stale": True, "staleness_seconds": 999999},
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))
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else:
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client = FakeClient(error=error)
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legacy = FakeLegacy([LEGACY_DAILY])
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wrapped = DatahubAwareTushareClient(legacy, DatahubBridge(flags(daily=(True, False)), client))
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rows = wrapped.query("daily", {"trade_date": "20240902"}, "ts_code,amount")
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self.assertEqual(rows[0]["amount"], 2000.0)
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self.assertEqual(len(legacy.calls), 1)
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def test_shadow_compares_without_replacing_and_survives_hub_failure(self) -> None:
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reports: list[dict[str, Any]] = []
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client = FakeClient()
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legacy = FakeLegacy([LEGACY_DAILY])
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wrapped = DatahubAwareTushareClient(
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legacy,
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DatahubBridge(flags(daily=(False, True)), client, shadow_sink=reports.append),
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)
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rows = wrapped.query("daily", {"trade_date": "20240902"}, "ts_code,amount,vol")
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self.assertEqual(rows[0]["amount"], 2000.0)
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self.assertEqual(len(legacy.calls), 1)
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self.assertEqual(reports[0]["equal"], True)
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self.assertEqual(reports[0]["matched"], 1)
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failed = FakeClient(error=DatahubError("UNAVAILABLE", TOKEN))
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fail_reports: list[dict[str, Any]] = []
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fail_legacy = FakeLegacy([LEGACY_DAILY])
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fail_wrapped = DatahubAwareTushareClient(
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fail_legacy,
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DatahubBridge(flags(daily=(False, True)), failed, shadow_sink=fail_reports.append),
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)
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again = fail_wrapped.query("daily", {"trade_date": "20240902"}, "amount")
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self.assertEqual(again[0]["amount"], 2000.0)
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self.assertTrue(fail_reports[0]["hub_error"])
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self.assertNotIn(TOKEN, json.dumps(fail_reports[0]))
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def test_compare_classifies_unit_conversion_missing_row_and_value_diff(self) -> None:
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equal = compare_rows("daily", [LEGACY_DAILY], [HUB_DAILY], {"stale": False, "staleness_seconds": 0})
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self.assertTrue(equal["equal"])
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unit = compare_rows("daily", [LEGACY_DAILY], [{**HUB_DAILY, "amount": 2000.0, "volume": 1000.0}])
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self.assertGreater(unit["unit_conversion_count"], 0)
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missing = compare_rows("daily", [LEGACY_DAILY], [])
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self.assertEqual(missing["missing_hub_count"], 1)
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value = compare_rows("daily", [LEGACY_DAILY], [{**HUB_DAILY, "close": 99.0}])
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self.assertEqual(value["value_diff_count"], 1)
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skew = compare_rows("daily", [LEGACY_DAILY], [HUB_DAILY], {"stale": False, "staleness_seconds": 12})
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self.assertTrue(skew["time_skew"])
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def test_native_roundtrip_matches_known_scales(self) -> None:
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native = to_native_row("daily", HUB_DAILY)
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self.assertEqual(native["vol"], 1000.0)
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self.assertEqual(native["amount"], 2000.0)
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canonical = to_canonical_row("daily", native)
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self.assertEqual(canonical["vol"], 100000.0)
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self.assertEqual(canonical["amount"], 2000000.0)
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def test_heaven_keeps_legacy_even_when_read_flag_is_on(self) -> None:
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self.assertTrue(looks_like_heaven("backend.features.heaven.market_context", "backend/features/heaven/market_context.py"))
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self.assertFalse(looks_like_heaven("backend.features.market.service", "backend/features/market/service.py"))
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client = FakeClient()
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legacy = FakeLegacy([LEGACY_DAILY])
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wrapped = DatahubAwareTushareClient(
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legacy,
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DatahubBridge(flags(daily=(True, False)), client, heaven_guard=lambda: True),
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)
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rows = wrapped.query("daily", {"trade_date": "20240902"}, "amount")
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self.assertEqual(rows[0]["amount"], 2000.0)
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self.assertEqual(client.paths, [])
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def test_status_flag_does_not_run_when_off_and_falls_back_when_on(self) -> None:
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off = DatahubBridge(flags(), FakeClient(error=DatahubError("UNAVAILABLE", "down")))
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self.assertIsNone(off.dataset_status("20240902"))
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reports: list[dict[str, Any]] = []
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failed = DatahubBridge(
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flags(status=(True, True)),
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FakeClient(error=DatahubError("UNAUTHORIZED", "nope")),
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shadow_sink=reports.append,
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)
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self.assertIsNone(failed.dataset_status("20240902"))
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self.assertTrue(reports[0]["hub_error"])
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ok = DatahubBridge(
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flags(status=(True, False)),
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FakeClient(response=DatahubResponse(data=[{"dataset": "daily", "state": "published"}], meta={"stale": False, "staleness_seconds": 0})),
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)
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self.assertEqual(ok.dataset_status("20240902")[0]["state"], "published")
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def test_default_gateway_wraps_tushare_without_calling_datahub(self) -> None:
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gateway = build_data_gateway({}, datahub_settings=flags())
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client = gateway.tushare()
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self.assertIsInstance(client, DatahubAwareTushareClient)
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self.assertFalse(gateway.datahub.settings.any_enabled())
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def test_features_do_not_import_datahub_client(self) -> None:
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violations = []
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for path in (ROOT / "backend" / "features").rglob("*.py"):
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tree = ast.parse(path.read_text(encoding="utf-8"), filename=str(path))
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for node in ast.walk(tree):
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names = []
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if isinstance(node, ast.Import):
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names = [alias.name for alias in node.names]
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elif isinstance(node, ast.ImportFrom) and node.module:
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names = [node.module]
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for name in names:
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if "datahub" in name.split("."):
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violations.append(f"{path.relative_to(ROOT)} -> {name}")
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self.assertEqual(violations, [])
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if __name__ == "__main__":
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unittest.main()
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@@ -0,0 +1,185 @@
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from __future__ import annotations
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import io
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import json
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import logging
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import threading
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import unittest
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from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
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from urllib.parse import parse_qs, urlparse
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from backend.data.datahub.client import DatahubClient
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from backend.data.datahub.errors import DatahubError
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from backend.data.datahub.redact import redact_text
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from backend.data.datahub.settings import DatahubSettings
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TOKEN = "super-secret-datahub-token"
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class FakeHubState:
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def __init__(self) -> None:
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self.mode = "ok"
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self.hits = 0
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self.paths: list[str] = []
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STATE = FakeHubState()
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class FakeHubHandler(BaseHTTPRequestHandler):
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def log_message(self, format: str, *args: object) -> None:
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return
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def do_GET(self) -> None: # noqa: N802
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STATE.hits += 1
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parsed = urlparse(self.path)
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STATE.paths.append(parsed.path)
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token = self.headers.get("X-Datahub-Token", "")
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if STATE.mode == "timeout":
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raise TimeoutError("simulated timeout")
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if token != TOKEN:
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self._json(401, {"error": {"code": "UNAUTHORIZED", "message": "missing or invalid X-Datahub-Token"}})
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return
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if STATE.mode == "unpublished":
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self._json(404, {"error": {"code": "DATASET_NOT_PUBLISHED", "message": "daily 19990101 尚未发布", "expected_at": "15:05+08:00"}})
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return
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if STATE.mode == "empty":
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self._json(200, {"schema_version": 1, "data": [], "meta": {"tier": "official", "stale": False, "staleness_seconds": 0}})
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return
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if STATE.mode == "stale":
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self._json(200, {"schema_version": 1, "data": [{"ts_code": "600000.SH", "trade_date": "20240902", "close": 10.2, "volume": 100000, "amount": 2000000}], "meta": {"tier": "official", "stale": True, "staleness_seconds": 999999}})
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return
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if STATE.mode == "invalid":
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self.send_response(200)
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self.send_header("Content-Type", "application/json")
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self.end_headers()
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self.wfile.write(b"not-json")
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return
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if parsed.path == "/v1/health":
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self._json(200, {"schema_version": 1, "data": {"status": "ok"}, "meta": {"tier": "official", "source": "datahub", "stale": False, "staleness_seconds": 0}})
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return
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if parsed.path == "/v1/calendar":
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self._json(200, {"schema_version": 1, "data": [{"cal_date": "20240902", "is_open": True, "pretrade_date": "20240830"}], "meta": {"tier": "official", "trade_date": "20240902", "stale": False, "staleness_seconds": 0}})
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return
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if parsed.path == "/v1/bars/daily":
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query = {key: values[-1] for key, values in parse_qs(parsed.query).items()}
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self._json(200, {
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"schema_version": 1,
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"data": [{
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"ts_code": "600000.SH",
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"trade_date": query.get("date") or "20240902",
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"open": 10.11, "high": 10.25, "low": 10.01, "close": 10.20,
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"pct_chg": 1.2345, "volume": 100000.0, "amount": 2000000.0, "adj_factor": 1.1,
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}],
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"meta": {"tier": "official", "trade_date": "20240902", "stale": False, "staleness_seconds": 0, "source": "tushare:daily"},
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})
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return
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if parsed.path == "/v1/datasets/status":
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self._json(200, {"schema_version": 1, "data": [{"dataset": "daily", "state": "published", "trade_date": "20240902"}], "meta": {"tier": "official", "stale": False, "staleness_seconds": 0}})
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return
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self._json(400, {"error": {"code": "INVALID_ARGUMENT", "message": f"unknown endpoint: {parsed.path}"}})
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def _json(self, status: int, payload: dict) -> None:
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body = json.dumps(payload).encode("utf-8")
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self.send_response(status)
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self.send_header("Content-Type", "application/json; charset=utf-8")
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self.send_header("Content-Length", str(len(body)))
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self.end_headers()
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self.wfile.write(body)
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class DatahubClientTests(unittest.TestCase):
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@classmethod
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def setUpClass(cls) -> None:
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cls.server = ThreadingHTTPServer(("127.0.0.1", 0), FakeHubHandler)
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cls.thread = threading.Thread(target=cls.server.serve_forever, daemon=True)
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cls.thread.start()
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cls.base = f"http://127.0.0.1:{cls.server.server_address[1]}"
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@classmethod
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def tearDownClass(cls) -> None:
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cls.server.shutdown()
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cls.server.server_close()
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def setUp(self) -> None:
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STATE.mode = "ok"
|
||||
STATE.hits = 0
|
||||
STATE.paths = []
|
||||
self.client = DatahubClient(DatahubSettings(base_url=self.base, token=TOKEN, retries=1, timeout_seconds=2))
|
||||
|
||||
def test_health_envelope(self) -> None:
|
||||
response = self.client.health()
|
||||
self.assertEqual(response.schema_version, 1)
|
||||
self.assertEqual(response.data["status"], "ok")
|
||||
self.assertIn("stale", response.meta)
|
||||
|
||||
def test_missing_and_bad_token_401(self) -> None:
|
||||
missing = DatahubClient(DatahubSettings(base_url=self.base, token=""))
|
||||
with self.assertRaises(DatahubError) as raised:
|
||||
missing.health()
|
||||
self.assertEqual(raised.exception.code, "NOT_CONFIGURED")
|
||||
bad = DatahubClient(DatahubSettings(base_url=self.base, token="wrong"))
|
||||
with self.assertRaises(DatahubError) as raised:
|
||||
bad.health()
|
||||
self.assertEqual(raised.exception.code, "UNAUTHORIZED")
|
||||
self.assertNotIn(TOKEN, str(raised.exception))
|
||||
|
||||
def test_unpublished_and_empty_and_stale_codes(self) -> None:
|
||||
STATE.mode = "unpublished"
|
||||
with self.assertRaises(DatahubError) as raised:
|
||||
self.client.daily_bars(date="19990101")
|
||||
self.assertEqual(raised.exception.code, "DATASET_NOT_PUBLISHED")
|
||||
STATE.mode = "empty"
|
||||
response = self.client.daily_bars(date="20240902")
|
||||
self.assertEqual(response.data, [])
|
||||
STATE.mode = "stale"
|
||||
stale = self.client.daily_bars(date="20240902")
|
||||
self.assertTrue(stale.meta["stale"])
|
||||
|
||||
def test_invalid_json_maps_to_internal(self) -> None:
|
||||
STATE.mode = "invalid"
|
||||
with self.assertRaises(DatahubError) as raised:
|
||||
self.client.health()
|
||||
self.assertEqual(raised.exception.code, "INTERNAL")
|
||||
|
||||
def test_timeout_maps_and_retries(self) -> None:
|
||||
hits = {"n": 0}
|
||||
|
||||
def boom(_request, timeout=None):
|
||||
hits["n"] += 1
|
||||
raise TimeoutError("late")
|
||||
|
||||
client = DatahubClient(
|
||||
DatahubSettings(base_url=self.base, token=TOKEN, retries=1, timeout_seconds=1),
|
||||
urlopen=boom,
|
||||
)
|
||||
with self.assertRaises(DatahubError) as raised:
|
||||
client.health()
|
||||
self.assertEqual(raised.exception.code, "TIMEOUT")
|
||||
self.assertEqual(hits["n"], 2)
|
||||
|
||||
def test_token_never_appears_in_error_text_or_logs(self) -> None:
|
||||
stream = io.StringIO()
|
||||
logger = logging.getLogger("xiaobai.datahub")
|
||||
handler = logging.StreamHandler(stream)
|
||||
logger.addHandler(handler)
|
||||
logger.setLevel(logging.DEBUG)
|
||||
try:
|
||||
with self.assertRaises(DatahubError):
|
||||
DatahubClient(DatahubSettings(base_url=self.base, token="wrong")).health()
|
||||
blob = stream.getvalue() + redact_text("header " + TOKEN, (TOKEN,))
|
||||
self.assertNotIn(TOKEN, blob)
|
||||
self.assertIn("***", redact_text(TOKEN, (TOKEN,)))
|
||||
finally:
|
||||
logger.removeHandler(handler)
|
||||
|
||||
def test_calendar_and_status_contract(self) -> None:
|
||||
calendar = self.client.calendar("20240901", "20240902")
|
||||
self.assertEqual(calendar.data[0]["cal_date"], "20240902")
|
||||
status = self.client.dataset_status("20240902")
|
||||
self.assertEqual(status.data[0]["dataset"], "daily")
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
unittest.main()
|
||||
Reference in New Issue
Block a user