test: add a typical PS/2 wheel mouse

Notably without a high-resoulution wheel to ensure we run the tests on
those devices too.

Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1275>

meson.build

@@ -840,6 +840,7 @@ if get_option('tests')
 		'test/litest-device-magic-trackpad.c',
 		'test/litest-device-mouse.c',
 		'test/litest-device-mouse-wheel-tilt.c',
+		'test/litest-device-mouse-ps2.c',
 		'test/litest-device-mouse-roccat.c',
 		'test/litest-device-mouse-low-dpi.c',
 		'test/litest-device-mouse-virtual.c',

test/litest-device-mouse-ps2.c

@@ -0,0 +1,58 @@
+
+/*
+ * Copyright © 2013 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "config.h"
+
+#include "litest-int.h"
+#include "litest.h"
+
+static struct input_id input_id = {
+	.bustype = 0x11,
+	.vendor = 0x0002,
+	.product = 0x0006,
+};
+
+/* clang-format off */
+static int events[] = {
+	EV_KEY, BTN_LEFT,
+	EV_KEY, BTN_RIGHT,
+	EV_KEY, BTN_MIDDLE,
+	EV_KEY, BTN_SIDE,
+	EV_KEY, BTN_EXTRA,
+	EV_REL, REL_X,
+	EV_REL, REL_Y,
+	EV_REL, REL_WHEEL,
+	EV_REL, REL_HWHEEL,
+	-1 , -1,
+};
+/* clang-format on */
+
+TEST_DEVICE(LITEST_MOUSE_PS2,
+	    .features = LITEST_RELATIVE | LITEST_BUTTON | LITEST_WHEEL,
+	    .interface = NULL,
+
+	    .name = "ImExPS/2 Generic Explorer Mouse",
+	    .id = &input_id,
+	    .absinfo = NULL,
+	    .events = events, )

test/litest.h

@@ -450,6 +450,7 @@ enum litest_device_type {
 
 	/* Pointing devices and keyboards */
 	LITEST_MOUSE,
+	LITEST_MOUSE_PS2,
 	LITEST_KEYBOARD,
 	LITEST_TRACKPOINT,
 	LITEST_ABSINFO_OVERRIDE,