diff --git a/UnitTestProject/Modules/SwapModule/SwapSpanPriceSourceTest.cs b/UnitTestProject/Modules/SwapModule/SwapSpanPriceSourceTest.cs
index 17cd942e..94faf26b 100644
--- a/UnitTestProject/Modules/SwapModule/SwapSpanPriceSourceTest.cs
+++ b/UnitTestProject/Modules/SwapModule/SwapSpanPriceSourceTest.cs
@@ -1,5 +1,6 @@
 using YLErp.DBModels;
 using YLErp.Modules.DataProviderModule;
+using YLErp.QdpModule;
 
 namespace YLErp.Modules.SwapModule
 {
@@ -40,17 +41,22 @@ namespace YLErp.Modules.SwapModule
         public void SP_002_ETF收盘价源_可取()
         {
             using var db = DbContextFactory.GetYLDbContext();
-            var latest = db.eod_stock_price
-                .Where(x => x.ClosePrice > 0)
-                .OrderByDescending(x => x.ValueDate)
-                .Select(x => new { x.ValueDate, x.UnderlyingCode })
-                .FirstOrDefault();
+            //join underlying_manager：取数链路 InnerGetEodPrice 从标的表出发 join 价格表，
+            //价格表里未登记为标的的代码（同步进来的非管理标的）取数必返回 null，冒烟样本须限定在已登记标的上
+            var latest = (from ep in db.eod_stock_price
+                          where ep.ClosePrice > 0
+                          join um in db.underlying_manager on ep.UnderlyingCode equals um.UnderlyingCode
+                          orderby ep.ValueDate descending
+                          select new { ep.ValueDate, ep.UnderlyingCode }).FirstOrDefault();
             if (latest == null)
             {
                 Assert.Inconclusive("dev 库无股票/ETF日终价格数据，跳过");
             }
 
-            Assert.IsTrue(EodPriceQueryService.TryGetEodPrice(latest.ValueDate, latest.UnderlyingCode, out var price));
+            //价格表可能混有非交易日/未来日期的脏行（如 2026-08-30 周日），而取数链路会按交易日历调整日期
+            //（非国君环境向后滚到下一交易日，脏行日期之后无数据 → 取不到）；查询日期回退到最近交易日再验
+            var queryDate = QdpCalendarHelper.GetNonHolidayDefore(latest.ValueDate.Date);
+            Assert.IsTrue(EodPriceQueryService.TryGetEodPrice(queryDate, latest.UnderlyingCode, out var price));
             Assert.IsTrue(price.GetPrice(SettlementTypeEnum.ClosePrice) > 0);
         }
     }