From 08a5bc4f48938383374595a4fd121f5fed566ee7 Mon Sep 17 00:00:00 2001
From: Mike Yuan <me@yhndnzj.com>
Date: Mon, 28 Aug 2023 17:29:31 +0800
Subject: [PATCH] Revert "Revert "test: add test case for systemd-update-utmp
 vs daemon-reexec""

This reverts commit 837773add465bd0a0d1f598203d297cf0129468b.

The original issue #27287 is fixed by #28123. Let's
reintroduce the test for systemd-update-utmp.
---
 test/units/testsuite-01.sh | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/test/units/testsuite-01.sh b/test/units/testsuite-01.sh
index 780f37ee128..870b62da9ab 100755
--- a/test/units/testsuite-01.sh
+++ b/test/units/testsuite-01.sh
@@ -45,4 +45,17 @@ systemctl daemon-reload
 # of systemd-analyze blame. See issue #27187.
 systemd-analyze blame
 
+# Test for 'systemd-update-utmp runlevel' vs 'systemctl daemon-reexec'.
+# See issue #27163.
+# shellcheck disable=SC2034
+for _ in {0..10}; do
+    systemctl daemon-reexec &
+    pid_reexec=$!
+    # shellcheck disable=SC2034
+    for _ in {0..10}; do
+        SYSTEMD_LOG_LEVEL=debug /usr/lib/systemd/systemd-update-utmp runlevel
+    done
+    wait "$pid_reexec"
+done
+
 touch /testok
-- 
2.39.5