From 2d978bf44a7a8126198cd97b43fe8a8deac1af4a Mon Sep 17 00:00:00 2001
From: kshitijk4poor <82637225+kshitijk4poor@users.noreply.github.com>
Date: Sat, 20 Jun 2026 00:22:55 +0530
Subject: [PATCH] test(cron): make env-sanitize probe var deterministic

next(iter(frozenset)) picked a different blocklist var each run
(PYTHONHASHSEED-dependent), hurting reproducibility. sorted()[0]
keeps the invariant-style assertion (any real blocklisted var)
while making failures reproducible.

Follow-up to salvaged PR #49207.
---
 tests/cron/test_cron_script.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tests/cron/test_cron_script.py b/tests/cron/test_cron_script.py
index 783320728bd..ee02d043017 100644
--- a/tests/cron/test_cron_script.py
+++ b/tests/cron/test_cron_script.py
@@ -137,7 +137,9 @@ class TestRunJobScript:
         from tools.environments.local import _HERMES_PROVIDER_ENV_BLOCKLIST
         from cron.scheduler import _run_job_script
 
-        blocked_var = next(iter(_HERMES_PROVIDER_ENV_BLOCKLIST))
+        # sorted() so the probed var is deterministic across runs
+        # (frozenset iteration order varies with PYTHONHASHSEED).
+        blocked_var = sorted(_HERMES_PROVIDER_ENV_BLOCKLIST)[0]
         monkeypatch.setenv(blocked_var, "must_not_leak")
 
         script = cron_env / "scripts" / "env_probe.py"