From be9060ff9620e170a05a6353ab293efb7c704248 Mon Sep 17 00:00:00 2001
From: "Adam Perry @ OpenAI" <anp@openai.com>
Date: Sat, 10 Oct 2026 16:43:40 +0000
Subject: [PATCH] Stabilize the realtime steering timeline test (#52923)

The initial user item seals realtime transcript segments, so starting speech before it completes can split the segment under test. Wait for its `item/completed` notification and assert that it is a `ThreadItem::UserMessage` before triggering speech, so only the steering under test can split that segment.

GitOrigin-RevId: 932443f4a0d6c4284cf95f44e64912506769a180
---
 .../app-server/tests/suite/v2/realtime_conversation.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/codex-rs/app-server/tests/suite/v2/realtime_conversation.rs b/codex-rs/app-server/tests/suite/v2/realtime_conversation.rs
index 08c9545968..e4f5029ce0 100644
--- a/codex-rs/app-server/tests/suite/v2/realtime_conversation.rs
+++ b/codex-rs/app-server/tests/suite/v2/realtime_conversation.rs
@@ -1273,6 +1273,16 @@ async fn realtime_timeline_splits_accepted_steering_and_persists_promoted_artifa
         .read_notification::<TurnStartedNotification>("turn/started")
         .await?;
 
+    // The initial user item also seals realtime transcript segments. Wait for
+    // it before speaking so only the steering under test can split this segment.
+    let initial_message = harness
+        .read_notification::<ItemCompletedNotification>("item/completed")
+        .await?;
+    assert!(matches!(
+        initial_message.item,
+        ThreadItem::UserMessage { .. }
+    ));
+
     harness
         .append_text(harness.thread_id.clone(), "Trigger speech")
         .await?;