From c7ec39f51edd13dc0a0de81c120fe2de3e2da346 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Mon, 14 Jul 2025 11:00:32 +1000
Subject: [PATCH] test: tighten a helper function

Make sure we can pass only the right axis in

Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1268>
---
 test/test-pointer.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/test/test-pointer.c b/test/test-pointer.c
index 8e842851..38498d69 100644
--- a/test/test-pointer.c
+++ b/test/test-pointer.c
@@ -704,6 +704,15 @@ test_wheel_event(struct litest_device *dev, int which, int amount)
 	struct libinput *li = dev->libinput;
 	int event_amount = amount;
 
+	switch (which) {
+	case REL_WHEEL:
+	case REL_HWHEEL:
+		break;
+	default:
+		litest_assert_msg("Invalid axis for %s", __func__);
+		break;
+	}
+
 	/* mouse scroll wheels are 'upside down' */
 	if (which == REL_WHEEL)
 		event_amount *= -1;