mirror of
https://ghfast.top/https://github.com/aeroxw/easy_tdx_max.git
synced 2026-09-12 14:34:18 +08:00
Justin Gu
032f5a40c0
两个独立问题（日志证据）： 1. K线空body 500：SH600519 等正常股票偶发请求时，通达信返回 ret_count>0 但 body 完全为空（偏移2 剩余0）。v1.18.3 的容错有 'if bars:' 条件，bars 为空时 raise → 500。移除该条件，始终 return （空列表让前端分页重试比 500 友好）。GetIndexBarsCmd 同改。 2. SPA fallback 缺失：/optimize /portfolio 等前端路由刷新时 404。 子类化 StaticFiles 为 SPAStaticFiles，404 时返回 index.html。 API 路径不受影响。 测试：更新 test_security_bars_truncated_first_record（原断言 raise， 现断言返回空列表）+ 新增空 body 回归测试。902 全过。
114 lines
4.6 KiB
Python
114 lines
4.6 KiB
Python
"""坏包与解码异常回归测试。"""
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from __future__ import annotations
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import struct
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from pathlib import Path
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import pytest
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from easy_tdx.codec.frame import FrameHeader, decompress_body
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from easy_tdx.commands.company_info import GetCompanyInfoCategoryCmd
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from easy_tdx.commands.security_bars import GetSecurityBarsCmd
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from easy_tdx.commands.security_count import GetSecurityCountCmd
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from easy_tdx.commands.xdxr_info import GetXdxrInfoCmd
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from easy_tdx.exceptions import TdxDecodeError
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from easy_tdx.models.enums import KlineCategory, Market
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FIXTURES = Path(__file__).parent.parent / "fixtures"
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def _load_hex(name: str) -> bytes:
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return bytes.fromhex((FIXTURES / f"{name}.hex").read_text(encoding="utf-8").strip())
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def test_security_count_truncated_raises_tdxdecodeerror() -> None:
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with pytest.raises(TdxDecodeError):
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GetSecurityCountCmd(Market.SH).parse_response(b"")
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def test_company_info_category_truncated_raises_tdxdecodeerror() -> None:
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body = _load_hex("company_info_category")
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cmd = GetCompanyInfoCategoryCmd(Market.SH, "600000")
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with pytest.raises(TdxDecodeError):
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cmd.parse_response(body[:-10])
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def test_xdxr_info_truncated_raises_tdxdecodeerror() -> None:
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body = _load_hex("xdxr_info")
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cmd = GetXdxrInfoCmd(Market.SH, "600000")
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with pytest.raises(TdxDecodeError):
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cmd.parse_response(body[:-10])
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def test_frame_bad_zlib_raises_tdxdecodeerror() -> None:
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with pytest.raises(TdxDecodeError):
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decompress_body(FrameHeader(0, 0, 0, 4, 8), b"xxxx")
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def test_frame_unzipsize_mismatch_raises_tdxdecodeerror() -> None:
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with pytest.raises(TdxDecodeError):
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decompress_body(FrameHeader(0, 0, 0, 3, 4), b"abc")
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# --------------------------------------------------------------------------- #
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# security_bars 残缺尾记录：服务器 ret_count 与 body 实际长度偶发不匹配
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# （实测日志：SH600519 报"day datetime: 数据不足，需要 4 字节，偏移 2，
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# 实际剩余 0 字节"）。修复策略是丢弃残缺尾记录、返回已解析的完整记录，
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# 而不是让整批数据 500。
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# --------------------------------------------------------------------------- #
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def _make_day_record(yyyymmdd: int) -> bytes:
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"""构造一条合法日线记录：4B datetime + 4 price(0x00) + 8B volume(0)。"""
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return struct.pack("<I", yyyymmdd) + b"\x00" * 4 + b"\x00\x00\x00\x00" * 2
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def test_security_bars_truncated_tail_returns_partial_results() -> None:
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"""ret_count=3 但 body 只够 1 条 + 残渣 → 返回 1 条，不抛异常。"""
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body = struct.pack("<H", 3) + _make_day_record(20240101) + b"\x00\x00"
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cmd = GetSecurityBarsCmd(Market.SZ, "000001", KlineCategory.DAY, 0, 800)
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bars = cmd.parse_response(body)
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assert len(bars) == 1
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assert (bars[0].year, bars[0].month, bars[0].day) == (2024, 1, 1)
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def test_security_bars_ret_count_lies_returns_actual_count() -> None:
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"""ret_count 撒大谎（说 100 条实际 2 条）→ 按 body 实际长度截断。"""
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body = struct.pack("<H", 100) + _make_day_record(20240101) + _make_day_record(20240102)
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cmd = GetSecurityBarsCmd(Market.SH, "600519", KlineCategory.DAY, 0, 800)
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bars = cmd.parse_response(body)
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assert len(bars) == 2
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def test_security_bars_empty_body_returns_empty_list() -> None:
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"""ret_count=0 → 空列表，不抛异常。"""
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cmd = GetSecurityBarsCmd(Market.SZ, "000001", KlineCategory.DAY, 0, 800)
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bars = cmd.parse_response(struct.pack("<H", 0))
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assert bars == []
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def test_security_bars_complete_body_not_affected() -> None:
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"""正常完整 body 不受 graceful degradation 影响（不能误伤）。"""
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body = struct.pack("<H", 2) + _make_day_record(20240101) + _make_day_record(20240102)
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cmd = GetSecurityBarsCmd(Market.SZ, "000001", KlineCategory.DAY, 0, 800)
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bars = cmd.parse_response(body)
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assert len(bars) == 2
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assert (bars[1].year, bars[1].month, bars[1].day) == (2024, 1, 2)
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def test_security_bars_ret_count_lies_body_completely_empty() -> None:
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"""ret_count 撒谎说有数据但 body 只有 ret_count 头（0 条记录数据）。
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回归 v1.19.2 日志报错：SH600519 请求 count=800，服务器返回 ret_count=5
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但 body 从 pos=2 开始就为空，第 1 条 datetime 解析即崩（偏移 2，剩余 0）。
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v1.18.3 的容错有 ``if bars:`` 条件，bars 为空时走 ``raise`` → 500。
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修复后无论 bars 是否为空都 return（空列表让调用方重试比 500 好）。
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"""
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body = struct.pack("<H", 5) # ret_count=5，但 0 字节记录数据
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cmd = GetSecurityBarsCmd(Market.SH, "600519", KlineCategory.DAY, 0, 800)
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bars = cmd.parse_response(body)
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assert bars == []
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