From a046849438c61d989303b8d5549eaae55ed0cf77 Mon Sep 17 00:00:00 2001
From: jif-oai <jif@openai.com>
Date: Wed, 25 Feb 2026 09:59:25 +0000
Subject: [PATCH] fix: flaky test due to second-resolution for thread ordering
 (#12692)

---
 codex-rs/exec/tests/suite/resume.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/codex-rs/exec/tests/suite/resume.rs b/codex-rs/exec/tests/suite/resume.rs
index e5074da74..8cd8fffb4 100644
--- a/codex-rs/exec/tests/suite/resume.rs
+++ b/codex-rs/exec/tests/suite/resume.rs
@@ -278,6 +278,11 @@ fn exec_resume_last_respects_cwd_filter_and_all_flag() -> anyhow::Result<()> {
         .assert()
         .success();
 
+    // `resume --last` sorts by `updated_at`, which is second-granularity. Sleep so
+    // the upcoming `resume --last --all` write lands in a later second and becomes
+    // deterministically newest (instead of tying and falling back to UUID order).
+    std::thread::sleep(std::time::Duration::from_millis(1100));
+
     let marker_b2 = format!("resume-cwd-b-2-{}", Uuid::new_v4());
     let prompt_b2 = format!("echo {marker_b2}");
     test.cmd()