From 6104fe44f12480761c60e3d18cf59a23b8b9b816 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Wed, 2 Jul 2025 15:29:23 +1000
Subject: [PATCH] test: if we fail to receive our udev device, abort with a
 useful error

This frequently fails when the runners are busy, so let's at least print
the errno to have *some* idea of what is failing.

Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1257>
---
 test/litest.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/test/litest.c b/test/litest.c
index 3947accc..759c5510 100644
--- a/test/litest.c
+++ b/test/litest.c
@@ -2340,7 +2340,12 @@ udev_wait_for_device_event(struct udev_monitor *udev_monitor,
 		const char *udev_action;
 
 		udev_device = udev_monitor_receive_device(udev_monitor);
-		litest_assert_notnull(udev_device);
+		if (!udev_device) {
+			litest_abort_msg(
+				"Failed to receive udev device from monitor: %s (%d)",
+				strerror(errno),
+				errno);
+		}
 		udev_action = udev_device_get_action(udev_device);
 		if (!udev_action || !streq(udev_action, udev_event)) {
 			continue;