From 65d996024be65652496fda34262154453299941a Mon Sep 17 00:00:00 2001
From: droguljic <1875821+droguljic@users.noreply.github.com>
Date: Wed, 28 Jan 2026 13:42:47 +0100
Subject: [PATCH] test: wait for tasks to become available in ECS EFS
 read/write test

Wrap list tasks command, and corresponding assertion, in `backOff`
to eliminate race condition where tasks are not yet available.
---
 tests/ecs-service/persistent-storage.test.ts | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/tests/ecs-service/persistent-storage.test.ts b/tests/ecs-service/persistent-storage.test.ts
index 7088027..2812d5e 100644
--- a/tests/ecs-service/persistent-storage.test.ts
+++ b/tests/ecs-service/persistent-storage.test.ts
@@ -266,12 +266,16 @@ export function testEcsServiceWithStorage(ctx: EcsTestContext) {
     }
     const logsClient = new CloudWatchLogsClient({ region });
 
-    const listCommand = new ListTasksCommand({
-      cluster: clusterName,
-      family: ecsServiceWithStorage.taskDefinition.family,
-    });
-    const { taskArns } = await ctx.clients.ecs.send(listCommand);
-    assert.ok(taskArns && taskArns.length > 0, 'Task should be running');
+    const taskArns = await backOff(async () => {
+      const listCommand = new ListTasksCommand({
+        cluster: clusterName,
+        family: ecsServiceWithStorage.taskDefinition.family,
+      });
+      const { taskArns } = await ctx.clients.ecs.send(listCommand);
+      assert.ok(taskArns && taskArns.length > 0, 'Task should be running');
+
+      return taskArns;
+    }, ctx.config.exponentialBackOffConfig);
 
     const describeTasksCommand = new DescribeTasksCommand({
       cluster: clusterName,