From 0027704169ff7430ffa1403e1d5850ab4f917ea5 Mon Sep 17 00:00:00 2001
From: hezhaohui <hezhaohui0807@163.com>
Date: Wed, 29 Jul 2026 14:47:31 +0800
Subject: [PATCH] =?UTF-8?q?fix(server):=20=E4=BF=AE=E5=A4=8D=20TestSubscri?=
 =?UTF-8?q?beTask=5FConcurrentSafety=20=E6=95=B0=E6=8D=AE=E7=AB=9E?=
 =?UTF-8?q?=E4=BA=89=E9=97=AE=E9=A2=98?=
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- 修复多个 goroutine 并发 append 同一 slice 导致的 DATA RACE
- 使用预分配 slice + 索引赋值替代并发 append
- 通过 go test -race 验证
---
 server/internal/service/delivery_task_test.go | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/server/internal/service/delivery_task_test.go b/server/internal/service/delivery_task_test.go
index 77c5ea4..b1f2b2f 100644
--- a/server/internal/service/delivery_task_test.go
+++ b/server/internal/service/delivery_task_test.go
@@ -354,14 +354,14 @@ func TestSubscribeTask_ConcurrentSafety(t *testing.T) {
 	const goroutines = 50
 
 	// 并发订阅
-	cancels := make([]func(), 0, goroutines)
+	cancels := make([]func(), goroutines)
 	for i := 0; i < goroutines; i++ {
 		wg.Add(1)
-		go func() {
+		go func(idx int) {
 			defer wg.Done()
 			_, cancel := svc.SubscribeTask(taskID)
-			cancels = append(cancels, cancel)
-		}()
+			cancels[idx] = cancel
+		}(i)
 	}
 	wg.Wait()