From beebaeeb3f27a3ec46bf027cbca63333c41bc97e Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Wed, 5 Jul 2023 12:05:45 +0900
Subject: [PATCH] test: change partition label to test if the outdated devlinks
 are removed

The change is intended to reproduce the issue #27983, though the
original issue is highly racy, and the test does not reproduce it
reliably. But, anyway, it is better to change the partition label to
test the devlink removal.
---
 test/units/testsuite-64.sh | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/test/units/testsuite-64.sh b/test/units/testsuite-64.sh
index ad502a229c1..789f24f98d1 100755
--- a/test/units/testsuite-64.sh
+++ b/test/units/testsuite-64.sh
@@ -444,10 +444,14 @@ EOF
 }
 
 testcase_simultaneous_events_2() {
-    local disk expected i iterations key link num_part part partscript target timeout
+    local disk expected i iterations key link num_part part script_dir target timeout
     local -a devices symlinks
     local -A running
 
+    script_dir="$(mktemp --directory "/tmp/test-udev-storage.script.XXXXXXXXXX")"
+    # shellcheck disable=SC2064
+    trap "rm -rf '$script_dir'" RETURN
+
     if [[ -v ASAN_OPTIONS || "$(systemd-detect-virt -v)" == "qemu" ]]; then
         num_part=20
         iterations=1
@@ -469,13 +473,11 @@ testcase_simultaneous_events_2() {
         devices+=("$target")
     done
 
-    symlinks=("/dev/disk/by-partlabel/testlabel")
-
-    partscript="$(mktemp)"
-
-    cat >"$partscript" <<EOF
-$(for ((part = 1; part <= num_part; part++)); do printf 'name="testlabel", size=1M\n'; done)
+    for ((i = 1; i <= iterations; i++)); do
+        cat >"$script_dir/partscript-$i" <<EOF
+$(for ((part = 1; part <= num_part; part++)); do printf 'name="testlabel-%d", size=1M\n' "$i"; done)
 EOF
+    done
 
     echo "## $iterations iterations start: $(date '+%H:%M:%S.%N')"
     for ((i = 1; i <= iterations; i++)); do
@@ -491,7 +493,7 @@ EOF
         done
 
         for disk in {0..9}; do
-            udevadm lock --device="${devices[$disk]}" sfdisk -q -X gpt "${devices[$disk]}" <"$partscript" &
+            udevadm lock --device="${devices[$disk]}" sfdisk -q -X gpt "${devices[$disk]}" <"$script_dir/partscript-$i" &
             running[$disk]=$!
         done
 
@@ -500,7 +502,7 @@ EOF
             unset "running[$key]"
         done
 
-        udevadm wait --settle --timeout="$timeout" "${devices[@]}" "${symlinks[@]}"
+        udevadm wait --settle --timeout="$timeout" "${devices[@]}" "/dev/disk/by-partlabel/testlabel-$i"
     done
     echo "## $iterations iterations end: $(date '+%H:%M:%S.%N')"
 }
-- 
2.47.3