Merge remote-tracking branch 'origin/glms/feature/1.4.2' into glms/feature/1.4.2

2026-07-17 13:17:39 +08:00
parent 7fac6e13a8 42602055de
commit c41e677042
8 changed files with 423 additions and 12 deletions
@@ -170,6 +170,18 @@ describe('多次部分平仓：全部↔部分切换 CloseQty 不跳变（占期
    test('除零保护：PositionQty=0 → ClosePercent=0', () => {
        expect(SwapCalc.calcOriginalClosePercentByQty(100, 0, oriClosePercent)).toBe(0);
    });
+
+    // GLMS-20260701-0006 生产 bug：第二次部分平仓 50%(占期初) 时
+    // 32500000 * (0.5 / 0.65) = 24999999.999999996（JS 浮点精度偏差）
+    // roundHalfAwayFromZero 应正确舍入为 25000000
+    test('GLMS-20260701-0006：32500000×(0.5/0.65) 应=25000000 而非 24999999.999999996', () => {
+        const closePercent = 0.5;        // 占期初 50%
+        const oriClosePercent = 0.65;    // 剩余/期初 = 32500000/50000000
+        const positionQty = 32500000;    // 剩余持仓
+        const closeQty = SwapCalc.calcCloseQtyByOriginalPercent(closePercent, oriClosePercent, positionQty);
+        expectClose(closeQty, 25000000, '应=25000000 不受 JS 浮点偏差影响');
+        expect(closeQty).not.toBe(24999999.999999996);
+    });
 });

 describe('交叉校验：对齐 C# FrontendCalcCharacterizationTest 金标准', () => {