From 9228ecaf8c2d9abbde7d3a6490ffc5e10921f545 Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Thu, 16 Sep 2021 06:14:18 +0900
Subject: [PATCH] test: use /dev/null instead of the loop back network
 interface

It should faster to be processed. So, we can shorten the timeout.
Also, this makes the test use `udevadm trigger`.
---
 test/units/testsuite-17.03.sh | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/test/units/testsuite-17.03.sh b/test/units/testsuite-17.03.sh
index fb43aa11f0..93cbf146a1 100755
--- a/test/units/testsuite-17.03.sh
+++ b/test/units/testsuite-17.03.sh
@@ -8,10 +8,10 @@ setup() {
     mkdir -p "${test_rule%/*}"
     cp -f /etc/udev/udev.conf /etc/udev/udev.conf.bckp
     cat >"${test_rule}" <<EOF
-SUBSYSTEM=="net", KERNEL=="lo", OPTIONS="log_level=debug"
-SUBSYSTEM=="net", KERNEL=="lo", PROGRAM=="/bin/sleep 60"
+ACTION=="add", SUBSYSTEM=="mem", KERNEL=="null", OPTIONS="log_level=debug"
+ACTION=="add", SUBSYSTEM=="mem", KERNEL=="null", PROGRAM=="/bin/sleep 60"
 EOF
-    echo "event_timeout=30" >>/etc/udev/udev.conf
+    echo "event_timeout=10" >>/etc/udev/udev.conf
     echo "timeout_signal=SIGABRT" >>/etc/udev/udev.conf
 
     systemctl restart systemd-udevd.service
@@ -28,13 +28,13 @@ teardown() {
 run_test() {
     since="$(date +%T)"
 
-    echo add >/sys/class/net/lo/uevent
+    udevadm trigger -w --action add /dev/null
 
     for _ in {1..20}; do
-        sleep 5
         if coredumpctl --since "$since" --no-legend --no-pager | grep /bin/udevadm ; then
             return 0
         fi
+        sleep .5
     done
 
     return 1