- 项目文档/互换计算口径一致性_残留问题与治理路线.md:定义 BUG 本质(分散计算/字段重叠/硬编码精度), 定位 income 页缺 longRatio 导致空头符号相反的残留点,并给出如何确认 income 错/unwind 对 的裁决链与改动安全性论证。 - YLErpWeb/fe-tests/_proof_short_income.js:纯 Node 红测试原型,证明多头两页一致(掩盖)、空头符号相反、补 longRatio 后一致。 - YLErpWeb/fe-tests/markClosePnlShortConsistency.test.js:jest 格式红测试(与 parity.test.js 同风格),作为后续修复的回归护栏。 说明:仅审计与测试资产,本次未修改任何生产代码(前端页面/后端 C# 均未改动)。
76 lines
3.9 KiB
JavaScript
76 lines
3.9 KiB
JavaScript
/**
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* _proof_short_income.js — 红测试原型(纯 Node 可跑,无需 jest 依赖)
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* ============================================================================
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* 目的:证明"income 页 MarkClosePnl 缺 longRatio"是一个真实存在、但当前测试未覆盖的不一致。
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*
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* 公式逐字抄录自团队金标准 YLErpDAL/Helpers/FrontendCalcReference.cs:
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* CalcUnwind (unwindSwapTrade.js) : 含 longRatio
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* CalcIncome (incomeSwapTrade.js) : 无 longRatio ← 差异点
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*
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* 跑法:node YLErpWeb/fe-tests/_proof_short_income.js
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*/
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'use strict';
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// ---- unwind 页公式(对应 FrontendCalcReference.CalcUnwind:42-47,含 longRatio)----
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function calcUnwindMarkClosePnl(input) {
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const scale = input.multiplier === 100 ? 0.01 : 1;
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const floatRatio = input.payDirection === 1 ? 1 : -1;
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const longRatio = input.positionType === 1 ? 1 : -1;
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const v = input.closeQty * (input.tradingAmountAvg * scale - input.posiGrossPrice) * floatRatio * longRatio * 10000;
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const rounded = Math.round(v) / 10000;
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return Math.round(rounded * 100) / 100; // toFixed(2)
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}
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// ---- income 页公式(对应 FrontendCalcReference.CalcIncome:105-108,无 longRatio)----
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function calcIncomeMarkClosePnl(input) {
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const scale = input.multiplier === 100 ? 0.01 : 1;
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const floatRatio = input.payDirection === 1 ? 1 : -1;
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// 注意:此处按照当前生产代码,没有乘以 longRatio
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const v = input.positionQty * input.contractSize * (input.tradingAmountAvg * scale - input.posiGrossPrice) * floatRatio;
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return Math.round(v * 100) / 100;
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}
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// ---- 修复后 income 公式(补上 longRatio,与 unwind / 后端一致)----
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function calcIncomeMarkClosePnlFixed(input) {
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const scale = input.multiplier === 100 ? 0.01 : 1;
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const floatRatio = input.payDirection === 1 ? 1 : -1;
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const longRatio = input.positionType === 1 ? 1 : -1;
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const v = input.positionQty * input.contractSize * (input.tradingAmountAvg * scale - input.posiGrossPrice) * floatRatio * longRatio;
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return Math.round(v * 100) / 100;
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}
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// 同一笔债券 TRS:期初全价 1.02,期末(互换/平仓价)105(×100形态→1.05),价差 0.03
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const base = { multiplier: 100, posiGrossPrice: 1.02, tradingAmountAvg: 105, contractSize: 1 };
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const longCase = { ...base, closeQty: 10000, positionQty: 10000, payDirection: 1, positionType: 1 };
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const shortCase = { ...base, closeQty: 10000, positionQty: 10000, payDirection: 1, positionType: 2 };
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function check(name, cond) {
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console.log(` [${cond ? 'PASS' : 'FAIL'}] ${name}`);
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return cond;
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}
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console.log('=== 场景A:多头(PositionType=1)—— 两页理应一致 ===');
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const aU = calcUnwindMarkClosePnl(longCase);
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const aI = calcIncomeMarkClosePnl(longCase);
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console.log(` unwind=${aU} income=${aI}`);
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let allPass = true;
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allPass &= check('多头:unwind == income', aU === aI);
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console.log('=== 场景B:空头(PositionType=2)—— 当前代码两页符号相反(红)===');
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const bU = calcUnwindMarkClosePnl(shortCase);
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const bI = calcIncomeMarkClosePnl(shortCase);
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console.log(` unwind=${bU} income=${bI} (空头价格涨应亏损,unwind 正确为负,income 错为正)`);
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allPass &= check('空头:unwind == income (当前代码会 FAIL → 证明 bug 存在)', bU === bI);
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console.log('=== 场景C:空头 + 修复后 income(补 longRatio)—— 应一致(绿)===');
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const bIf = calcIncomeMarkClosePnlFixed(shortCase);
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console.log(` unwind=${bU} incomeFixed=${bIf}`);
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allPass &= check('空头:unwind == incomeFixed (修复后 PASS → 证明改动可修复)', bU === bIf);
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console.log('');
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if (allPass) {
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console.log('✅ 全部通过(若场景B也PASS,说明已修复或无空头场景)');
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} else {
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console.log('❌ 场景B 失败 = 当前代码在「空头+income」下两页算出相反符号 → 真实不一致,且现有 FC_001~009 全为多头未覆盖。');
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}
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