From d4b948c1d4faa425c35491f0b04a2e21a4171e9f Mon Sep 17 00:00:00 2001
From: mikewong23571 <mikewong23571@gmail.com>
Date: Sat, 14 Mar 2026 01:18:40 +0800
Subject: [PATCH] test: fix flaky test_launch_options_from_env_defaults due to
 missing EnvGuard (#763)

The test was reading AGENT_BROWSER_HEADED without holding ENV_MUTEX,
causing a race with test_launch_options_from_env_headed_flag when
tests run in parallel.
---
 cli/src/native/actions.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cli/src/native/actions.rs b/cli/src/native/actions.rs
index 8f04acc..4d6d13b 100644
--- a/cli/src/native/actions.rs
+++ b/cli/src/native/actions.rs
@@ -5267,6 +5267,7 @@ mod tests {
 
     #[test]
     fn test_launch_options_from_env_defaults() {
+        let _guard = EnvGuard::new(&["AGENT_BROWSER_HEADED"]);
         let opts = launch_options_from_env();
         assert!(opts.headless);
         assert!(opts.args.is_empty());