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From: cyfung1031 <44498510+cyfung1031@users.noreply.github.com>
Date: Fri, 17 Jul 2026 19:20:22 +0900
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【5】大量任务、递回不死锁 用例串行 await 3000 个任务，在共享 CI runner 并发争抢下单次
实测超过全局 340ms 预算触发误报超时；本地隔离运行与全量覆盖率运行均稳定通过（~88ms），
非逻辑缺陷。比照 encoding.test.ts 的既有做法，为该重量级用例单独给予 850ms 预算，
不放宽全局超时。

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
---
 src/pkg/utils/async_queue.test.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/pkg/utils/async_queue.test.ts b/src/pkg/utils/async_queue.test.ts
index 495243344..22a70ce60 100644
--- a/src/pkg/utils/async_queue.test.ts
+++ b/src/pkg/utils/async_queue.test.ts
@@ -265,7 +265,9 @@ describe.concurrent("stackAsyncTask 测试", () => {
   });
 
   /* ------------------- 5. 压力 + 递回 ------------------- */
-  it.sequential("【5】大量任务、递回不死锁 + 返回值正确", async () => {
+  // 3000 个任务的串行 await 链在并发 worker 争抢下单次实测可达 300ms+，
+  // 逼近全局 340ms 预算；对这类真实成本用例给出显式单测预算，不放宽全局超时。
+  it.sequential("【5】大量任务、递回不死锁 + 返回值正确", { timeout: 850 }, async () => {
     const kMass = generateKey("mass");
     const kRecur = generateKey("recur");
     const gMass = setupBlockingTask(kMass);