diff --git a/miniprogram/pages/signin-lottery/detail/index.test.ts b/miniprogram/pages/signin-lottery/detail/index.test.ts
index 8edc184..4c445ba 100644
--- a/miniprogram/pages/signin-lottery/detail/index.test.ts
+++ b/miniprogram/pages/signin-lottery/detail/index.test.ts
@@ -48,6 +48,8 @@ const baseLottery = {
   title: '签到抽奖',
   status: 'active',
   start_date: '2026-08-01',
+  // 详情页会校验「今天在 start_date~end_date 窗口内」；end_date 缺失时窗口判定恒 false
+  end_date: '2099-12-31',
   threshold_days: 3,
   prizes: [],
 } as any