From 077d74764fd12954ea061d8a8dc2c39a12f167d5 Mon Sep 17 00:00:00 2001
From: haelyra <49814733+haelyra@users.noreply.github.com>
Date: Thu, 1 Oct 2026 12:09:57 -0400
Subject: [PATCH] test(ecc2): assert isolated config roots

---
 ecc2/src/config/mod.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/ecc2/src/config/mod.rs b/ecc2/src/config/mod.rs
index bdfdc5a8c..6c413e6f1 100644
--- a/ecc2/src/config/mod.rs
+++ b/ecc2/src/config/mod.rs
@@ -1169,6 +1169,15 @@ focus_metrics = "e"
         assert_eq!(Config::config_path(), Config::config_path());
     }
 
+    #[test]
+    fn config_path_under_test_is_distinct_across_test_threads() {
+        let current = Config::config_path();
+        let other = std::thread::spawn(Config::config_path)
+            .join()
+            .expect("config path thread should complete");
+        assert_ne!(current, other);
+    }
+
     #[cfg(unix)]
     #[test]
     fn config_root_under_test_is_owner_only() {