From 73da395dd10d376b48cac9f0a1c7282f9bf51f07 Mon Sep 17 00:00:00 2001
From: Ahmed Ibrahim <aibrahim@openai.com>
Date: Wed, 8 Apr 2026 20:25:11 -0700
Subject: [PATCH] codex: stabilize realtime call-create assertions on latest
 main (#17178)

Co-authored-by: Codex <noreply@openai.com>
---
 .../tests/suite/v2/realtime_conversation.rs   | 47 +++++++------------
 .../core/tests/suite/realtime_conversation.rs |  1 -
 2 files changed, 18 insertions(+), 30 deletions(-)

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 7d9c3fbb0c..18fa05f081 100644
--- a/codex-rs/app-server/tests/suite/v2/realtime_conversation.rs
+++ b/codex-rs/app-server/tests/suite/v2/realtime_conversation.rs
@@ -5,6 +5,10 @@ use app_test_support::create_final_assistant_message_sse_response;
 use app_test_support::create_mock_responses_server_sequence_unchecked;
 use app_test_support::create_shell_command_sse_response;
 use app_test_support::to_response;
+use codex_api::RealtimeEventParser;
+use codex_api::RealtimeSessionConfig;
+use codex_api::RealtimeSessionMode;
+use codex_api::session_update_session_json;
 use codex_app_server_protocol::CommandExecutionStatus;
 use codex_app_server_protocol::ItemCompletedNotification;
 use codex_app_server_protocol::ItemStartedNotification;
@@ -962,35 +966,20 @@ async fn realtime_webrtc_start_emits_sdp_notification() -> Result<()> {
         "unexpected close reason: {closed_notification:?}"
     );
 
-    let request = call_capture.single_request();
-    assert_eq!(request.url.path(), "/v1/realtime/calls");
-    assert_eq!(request.url.query(), None);
-    assert_eq!(
-        request
-            .headers
-            .get("content-type")
-            .and_then(|value| value.to_str().ok()),
-        Some("multipart/form-data; boundary=codex-realtime-call-boundary")
-    );
-    let body = String::from_utf8(request.body).context("multipart body should be utf-8")?;
-    let session = r#"{"tool_choice":"auto","model":"gpt-realtime-1.5","type":"realtime","instructions":"backend prompt\n\nstartup context","output_modalities":["audio"],"audio":{"input":{"format":{"type":"audio/pcm","rate":24000},"noise_reduction":{"type":"near_field"},"turn_detection":{"type":"server_vad","interrupt_response":true,"create_response":true}},"output":{"format":{"type":"audio/pcm","rate":24000},"voice":"marin"}},"tools":[{"type":"function","name":"codex","description":"Delegate a request to Codex and return the final result to the user. Use this as the default action. If the user asks to do something next, later, after this, or once current work finishes, call this tool so the work is actually queued instead of merely promising to do it later.","parameters":{"type":"object","properties":{"prompt":{"type":"string","description":"The user request to delegate to Codex."}},"required":["prompt"],"additionalProperties":false}}]}"#;
-    assert_eq!(
-        body,
-        format!(
-            "--codex-realtime-call-boundary\r\n\
-             Content-Disposition: form-data; name=\"sdp\"\r\n\
-             Content-Type: application/sdp\r\n\
-             \r\n\
-             v=offer\r\n\
-             \r\n\
-             --codex-realtime-call-boundary\r\n\
-             Content-Disposition: form-data; name=\"session\"\r\n\
-             Content-Type: application/json\r\n\
-             \r\n\
-             {session}\r\n\
-             --codex-realtime-call-boundary--\r\n"
-        )
-    );
+    let mut session = session_update_session_json(RealtimeSessionConfig {
+        instructions: "backend prompt".to_string(),
+        model: Some("gpt-realtime-1.5".to_string()),
+        session_id: Some("ignored".to_string()),
+        event_parser: RealtimeEventParser::RealtimeV2,
+        session_mode: RealtimeSessionMode::Conversational,
+        voice: RealtimeVoice::Marin,
+    })?;
+    session
+        .as_object_mut()
+        .expect("session should be an object")
+        .remove("id");
+    let session = serde_json::to_string(&session).expect("session should serialize");
+    assert_call_create_multipart(call_capture.single_request(), "v=offer\r\n", &session)?;
 
     realtime_server.shutdown().await;
     Ok(())
diff --git a/codex-rs/core/tests/suite/realtime_conversation.rs b/codex-rs/core/tests/suite/realtime_conversation.rs
index 3fa3c3a676..cd69ccc331 100644
--- a/codex-rs/core/tests/suite/realtime_conversation.rs
+++ b/codex-rs/core/tests/suite/realtime_conversation.rs
@@ -1,7 +1,6 @@
 use anyhow::Context;
 use anyhow::Result;
 use chrono::Utc;
-use codex_config::config_toml::RealtimeWsVersion;
 use codex_api::RealtimeEventParser;
 use codex_api::RealtimeSessionConfig;
 use codex_api::RealtimeSessionMode;