/*
 * Copyright © 2016 Red Hat, Inc.
 *
 * Permission to use, copy, modify, distribute, and sell this software and
 * its documentation for any purpose is hereby granted without fee, provided
 * that the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of the copyright holders not be used in
 * advertising or publicity pertaining to distribution of the software
 * without specific, written prior permission.  The copyright holders make
 * no representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied warranty.
 *
 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
 * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <config.h>

#include <check.h>
#include <errno.h>
#include <fcntl.h>
#include <libinput.h>
#include <unistd.h>
#include <stdbool.h>

#if HAVE_LIBWACOM
#include <libwacom/libwacom.h>
#endif

#include "libinput-util.h"
#include "litest.h"

START_TEST(pad_cap)
{
	struct litest_device *dev = litest_current_device();
	struct libinput_device *device = dev->libinput_device;

	ck_assert(libinput_device_has_capability(device,
						 LIBINPUT_DEVICE_CAP_TABLET_PAD));

}
END_TEST

START_TEST(pad_no_cap)
{
	struct litest_device *dev = litest_current_device();
	struct libinput_device *device = dev->libinput_device;

	ck_assert(!libinput_device_has_capability(device,
						  LIBINPUT_DEVICE_CAP_TABLET_PAD));
}
END_TEST

START_TEST(pad_time)
{
	struct litest_device *dev = litest_current_device();
	struct libinput *li = dev->libinput;
	struct libinput_event *ev;
	struct libinput_event_tablet_pad *pev;
	unsigned int code;
	uint64_t time, time_usec, oldtime;

	litest_drain_events(li);

	for (code = BTN_0; code < KEY_MAX; code++) {
		if (!libevdev_has_event_code(dev->evdev, EV_KEY, code))
			continue;

		litest_button_click(dev, code, 1);
		litest_button_click(dev, code, 0);
		libinput_dispatch(li);

		switch (code) {
		case BTN_STYLUS:
			litest_assert_empty_queue(li);
			continue;
		default:
			break;
		}

		break;
	}

	ev = libinput_get_event(li);
	ck_assert_int_eq(libinput_event_get_type(ev),
			 LIBINPUT_EVENT_TABLET_PAD_BUTTON);
	pev = libinput_event_get_tablet_pad_event(ev);
	time = libinput_event_tablet_pad_get_time(pev);
	time_usec = libinput_event_tablet_pad_get_time_usec(pev);

	ck_assert(time != 0);
	ck_assert(time == time_usec/1000);

	libinput_event_destroy(ev);

	litest_drain_events(li);
	msleep(10);

	litest_button_click(dev, code, 1);
	litest_button_click(dev, code, 0);
	libinput_dispatch(li);

	ev = libinput_get_event(li);
	ck_assert_int_eq(libinput_event_get_type(ev),
			 LIBINPUT_EVENT_TABLET_PAD_BUTTON);
	pev = libinput_event_get_tablet_pad_event(ev);

	oldtime = time;
	time = libinput_event_tablet_pad_get_time(pev);
	time_usec = libinput_event_tablet_pad_get_time_usec(pev);

	ck_assert(time > oldtime);
	ck_assert(time != 0);
	ck_assert(time == time_usec/1000);

	libinput_event_destroy(ev);
}
END_TEST

START_TEST(pad_num_buttons_libwacom)
{
#if HAVE_LIBWACOM
	struct litest_device *dev = litest_current_device();
	struct libinput_device *device = dev->libinput_device;
	WacomDeviceDatabase *db = NULL;
	WacomDevice *wacom = NULL;
	unsigned int nb_lw, nb;

	db = libwacom_database_new();
	ck_assert_notnull(db);

	wacom = libwacom_new_from_usbid(db,
					libevdev_get_id_vendor(dev->evdev),
					libevdev_get_id_product(dev->evdev),
					NULL);
	ck_assert_notnull(wacom);

	nb_lw = libwacom_get_num_buttons(wacom);
	nb = libinput_device_tablet_pad_get_num_buttons(device);

	ck_assert_int_eq(nb, nb_lw);

	libwacom_destroy(wacom);
	libwacom_database_destroy(db);
#endif
}
END_TEST

START_TEST(pad_num_buttons)
{
	struct litest_device *dev = litest_current_device();
	struct libinput_device *device = dev->libinput_device;
	unsigned int code;
	unsigned int nbuttons = 0;

	for (code = BTN_0; code < KEY_MAX; code++) {
		/* BTN_STYLUS is set for compatibility reasons but not
		 * actually hooked up */
		if (code == BTN_STYLUS)
			continue;

		if (libevdev_has_event_code(dev->evdev, EV_KEY, code))
			nbuttons++;
	}

	ck_assert_int_eq(libinput_device_tablet_pad_get_num_buttons(device),
			 nbuttons);
}
END_TEST

START_TEST(pad_button_intuos)
{
#if !HAVE_LIBWACOM_GET_BUTTON_EVDEV_CODE
	struct litest_device *dev = litest_current_device();
	struct libinput *li = dev->libinput;
	unsigned int code;
	unsigned int expected_number = 0;
	struct libinput_event *ev;
	struct libinput_event_tablet_pad *pev;
	unsigned int count;

	/* Intuos button mapping is sequential up from BTN_0 and continues
	 * with BTN_A */
	if (!libevdev_has_event_code(dev->evdev, EV_KEY, BTN_0))
		return;

	litest_drain_events(li);

	for (code = BTN_0; code < BTN_DIGI; code++) {
		/* Skip over the BTN_MOUSE and BTN_JOYSTICK range */
		if ((code >= BTN_MOUSE && code < BTN_JOYSTICK) ||
		    (code >= BTN_DIGI)) {
			ck_assert(!libevdev_has_event_code(dev->evdev,
							   EV_KEY, code));
			continue;
		}

		if (!libevdev_has_event_code(dev->evdev, EV_KEY, code))
			continue;

		litest_button_click(dev, code, 1);
		litest_button_click(dev, code, 0);
		libinput_dispatch(li);

		count++;

		ev = libinput_get_event(li);
		pev = litest_is_pad_button_event(ev,
						 expected_number,
						 LIBINPUT_BUTTON_STATE_PRESSED);
		ev = libinput_event_tablet_pad_get_base_event(pev);
		libinput_event_destroy(ev);

		ev = libinput_get_event(li);
		pev = litest_is_pad_button_event(ev,
						 expected_number,
						 LIBINPUT_BUTTON_STATE_RELEASED);
		ev = libinput_event_tablet_pad_get_base_event(pev);
		libinput_event_destroy(ev);

		expected_number++;
	}

	litest_assert_empty_queue(li);

	ck_assert_int_gt(count, 3);
#endif
}
END_TEST

START_TEST(pad_button_bamboo)
{
#if !HAVE_LIBWACOM_GET_BUTTON_EVDEV_CODE
	struct litest_device *dev = litest_current_device();
	struct libinput *li = dev->libinput;
	unsigned int code;
	unsigned int expected_number = 0;
	struct libinput_event *ev;
	struct libinput_event_tablet_pad *pev;
	unsigned int count;

	if (!libevdev_has_event_code(dev->evdev, EV_KEY, BTN_LEFT))
		return;

	litest_drain_events(li);

	for (code = BTN_LEFT; code < BTN_JOYSTICK; code++) {
		if (!libevdev_has_event_code(dev->evdev, EV_KEY, code))
			continue;

		litest_button_click(dev, code, 1);
		litest_button_click(dev, code, 0);
		libinput_dispatch(li);

		count++;

		ev = libinput_get_event(li);
		pev = litest_is_pad_button_event(ev,
						 expected_number,
						 LIBINPUT_BUTTON_STATE_PRESSED);
		ev = libinput_event_tablet_pad_get_base_event(pev);
		libinput_event_destroy(ev);

		ev = libinput_get_event(li);
		pev = litest_is_pad_button_event(ev,
						 expected_number,
						 LIBINPUT_BUTTON_STATE_RELEASED);
		ev = libinput_event_tablet_pad_get_base_event(pev);
		libinput_event_destroy(ev);

		expected_number++;
	}

	litest_assert_empty_queue(li);

	ck_assert_int_gt(count, 3);
#endif
}
END_TEST

START_TEST(pad_button_libwacom)
{
#if HAVE_LIBWACOM_GET_BUTTON_EVDEV_CODE
	struct litest_device *dev = litest_current_device();
	struct libinput *li = dev->libinput;
	WacomDeviceDatabase *db = NULL;
	WacomDevice *wacom = NULL;

	db = libwacom_database_new();
	assert(db);

	wacom = libwacom_new_from_usbid(db,
					libevdev_get_id_vendor(dev->evdev),
					libevdev_get_id_product(dev->evdev),
					NULL);
	assert(wacom);

	litest_drain_events(li);

	for (int i = 0; i < libwacom_get_num_buttons(wacom); i++) {
		unsigned int code;

		code = libwacom_get_button_evdev_code(wacom, 'A' + i);

		litest_button_click(dev, code, 1);
		litest_button_click(dev, code, 0);
		libinput_dispatch(li);

		litest_assert_pad_button_event(li,
					       i,
					       LIBINPUT_BUTTON_STATE_PRESSED);
		litest_assert_pad_button_event(li,
					       i,
					       LIBINPUT_BUTTON_STATE_RELEASED);
	}

	libwacom_destroy(wacom);
	libwacom_database_destroy(db);
#endif
}
END_TEST

START_TEST(pad_button_mode_groups)
{
	struct litest_device *dev = litest_current_device();
	struct libinput *li = dev->libinput;
	unsigned int code;
	unsigned int expected_number = 0;
	struct libinput_event *ev;
	struct libinput_event_tablet_pad *pev;

	litest_drain_events(li);

	for (code = BTN_0; code < KEY_MAX; code++) {
		unsigned int mode, index;
		struct libinput_tablet_pad_mode_group *group;

		if (!libevdev_has_event_code(dev->evdev, EV_KEY, code))
			continue;

		litest_button_click(dev, code, 1);
		litest_button_click(dev, code, 0);
		libinput_dispatch(li);

		switch (code) {
		case BTN_STYLUS:
			litest_assert_empty_queue(li);
			continue;
		default:
			break;
		}

		ev = libinput_get_event(li);
		ck_assert_int_eq(libinput_event_get_type(ev),
				 LIBINPUT_EVENT_TABLET_PAD_BUTTON);
		pev = libinput_event_get_tablet_pad_event(ev);

		/* litest virtual devices don't have modes */
		mode = libinput_event_tablet_pad_get_mode(pev);
		ck_assert_int_eq(mode, 0);
		group = libinput_event_tablet_pad_get_mode_group(pev);
		index = libinput_tablet_pad_mode_group_get_index(group);
		ck_assert_int_eq(index, 0);

		libinput_event_destroy(ev);

		ev = libinput_get_event(li);
		ck_assert_int_eq(libinput_event_get_type(ev),
				 LIBINPUT_EVENT_TABLET_PAD_BUTTON);
		pev = libinput_event_get_tablet_pad_event(ev);

		mode = libinput_event_tablet_pad_get_mode(pev);
		ck_assert_int_eq(mode, 0);
		group = libinput_event_tablet_pad_get_mode_group(pev);
		index = libinput_tablet_pad_mode_group_get_index(group);
		ck_assert_int_eq(index, 0);
		libinput_event_destroy(ev);

		expected_number++;
	}

	litest_assert_empty_queue(li);
}
END_TEST

START_TEST(pad_has_ring)
{
	struct litest_device *dev = litest_current_device();
	struct libinput_device *device = dev->libinput_device;
	int nrings;

	nrings = libinput_device_tablet_pad_get_num_rings(device);
	ck_assert_int_ge(nrings, 1);
}
END_TEST

START_TEST(pad_ring)
{
	struct litest_device *dev = litest_current_device();
	struct libinput *li = dev->libinput;
	struct libinput_event *ev;
	struct libinput_event_tablet_pad *pev;
	int val;
	double degrees, expected;
	int min, max;
	int step_size;
	int nevents = 0;

	litest_pad_ring_start(dev, 10);

	litest_drain_events(li);

	/* Wacom's 0 value is at 275 degrees */
	expected = 270;

	min = libevdev_get_abs_minimum(dev->evdev, ABS_WHEEL);
	max = libevdev_get_abs_maximum(dev->evdev, ABS_WHEEL);
	step_size = 360/(max - min + 1);

	/* This is a bit strange because we rely on kernel filtering here.
	   The litest_*() functions take a percentage, but mapping this to
	   the pads 72 or 36 range pad ranges is lossy and a bit
	   unpredictable. So instead we increase by a small percentage,
	   expecting *most* events to be filtered by the kernel because they
	   resolve to the same integer value as the previous event. Whenever
	   an event gets through, we expect that to be the next integer
	   value in the range and thus the next step on the circle.
	 */
	for (val = 0; val < 100.0; val += 1) {
		litest_pad_ring_change(dev, val);
		libinput_dispatch(li);

		ev = libinput_get_event(li);
		if (!ev)
			continue;

		nevents++;
		pev = litest_is_pad_ring_event(ev,
					       0,
					       LIBINPUT_TABLET_PAD_RING_SOURCE_FINGER);

		degrees = libinput_event_tablet_pad_get_ring_position(pev);
		ck_assert_double_ge(degrees, 0.0);
		ck_assert_double_lt(degrees, 360.0);

		ck_assert_double_eq(degrees, expected);

		libinput_event_destroy(ev);
		expected = fmod(degrees + step_size, 360);
	}

	ck_assert_int_eq(nevents, 360/step_size - 1);

	litest_pad_ring_end(dev);
}
END_TEST

START_TEST(pad_ring_finger_up)
{
	struct litest_device *dev = litest_current_device();
	struct libinput *li = dev->libinput;
	struct libinput_event *ev;
	struct libinput_event_tablet_pad *pev;
	double degrees;

	litest_pad_ring_start(dev, 10);

	litest_drain_events(li);

	litest_pad_ring_end(dev);
	libinput_dispatch(li);

	ev = libinput_get_event(li);
	pev = litest_is_pad_ring_event(ev,
				       0,
				       LIBINPUT_TABLET_PAD_RING_SOURCE_FINGER);

	degrees = libinput_event_tablet_pad_get_ring_position(pev);
	ck_assert_double_eq(degrees, -1.0);
	libinput_event_destroy(ev);

	litest_assert_empty_queue(li);
}
END_TEST

START_TEST(pad_has_strip)
{
	struct litest_device *dev = litest_current_device();
	struct libinput_device *device = dev->libinput_device;
	int nstrips;

	nstrips = libinput_device_tablet_pad_get_num_strips(device);
	ck_assert_int_ge(nstrips, 1);
}
END_TEST

START_TEST(pad_strip)
{
	struct litest_device *dev = litest_current_device();
	struct libinput *li = dev->libinput;
	struct libinput_event *ev;
	struct libinput_event_tablet_pad *pev;
	int val;
	double pos, expected;

	litest_pad_strip_start(dev, 10);

	litest_drain_events(li);

	expected = 0;

	/* 9.5 works with the generic axis scaling without jumping over a
	 * value. */
	for (val = 0; val < 100; val += 9.5) {
		litest_pad_strip_change(dev, val);
		libinput_dispatch(li);

		ev = libinput_get_event(li);
		pev = litest_is_pad_strip_event(ev,
						0,
						LIBINPUT_TABLET_PAD_STRIP_SOURCE_FINGER);

		pos = libinput_event_tablet_pad_get_strip_position(pev);
		ck_assert_double_ge(pos, 0.0);
		ck_assert_double_lt(pos, 1.0);

		/* rounding errors, mostly caused by small physical range */
		ck_assert_double_ge(pos, expected - 0.02);
		ck_assert_double_le(pos, expected + 0.02);

		libinput_event_destroy(ev);

		expected = pos + 0.08;
	}

	litest_pad_strip_change(dev, 100);
	libinput_dispatch(li);

	ev = libinput_get_event(li);
	pev = litest_is_pad_strip_event(ev,
					   0,
					   LIBINPUT_TABLET_PAD_STRIP_SOURCE_FINGER);
	pos = libinput_event_tablet_pad_get_strip_position(pev);
	ck_assert_double_eq(pos, 1.0);
	libinput_event_destroy(ev);

	litest_pad_strip_end(dev);
}
END_TEST

START_TEST(pad_strip_finger_up)
{
	struct litest_device *dev = litest_current_device();
	struct libinput *li = dev->libinput;
	struct libinput_event *ev;
	struct libinput_event_tablet_pad *pev;
	double pos;

	litest_pad_strip_start(dev, 10);
	litest_drain_events(li);

	litest_pad_strip_end(dev);
	libinput_dispatch(li);

	ev = libinput_get_event(li);
	pev = litest_is_pad_strip_event(ev,
					0,
					LIBINPUT_TABLET_PAD_STRIP_SOURCE_FINGER);

	pos = libinput_event_tablet_pad_get_strip_position(pev);
	ck_assert_double_eq(pos, -1.0);
	libinput_event_destroy(ev);

	litest_assert_empty_queue(li);
}
END_TEST

START_TEST(pad_left_handed_default)
{
#if HAVE_LIBWACOM
	struct litest_device *dev = litest_current_device();
	struct libinput_device *device = dev->libinput_device;
	enum libinput_config_status status;

	ck_assert(libinput_device_config_left_handed_is_available(device));

	ck_assert_int_eq(libinput_device_config_left_handed_get_default(device),
			 0);
	ck_assert_int_eq(libinput_device_config_left_handed_get(device),
			 0);

	status = libinput_device_config_left_handed_set(dev->libinput_device, 1);
	ck_assert_int_eq(status, LIBINPUT_CONFIG_STATUS_SUCCESS);

	ck_assert_int_eq(libinput_device_config_left_handed_get(device),
			 1);
	ck_assert_int_eq(libinput_device_config_left_handed_get_default(device),
			 0);

	status = libinput_device_config_left_handed_set(dev->libinput_device, 0);
	ck_assert_int_eq(status, LIBINPUT_CONFIG_STATUS_SUCCESS);

	ck_assert_int_eq(libinput_device_config_left_handed_get(device),
			 0);
	ck_assert_int_eq(libinput_device_config_left_handed_get_default(device),
			 0);

#endif
}
END_TEST

START_TEST(pad_no_left_handed)
{
	struct litest_device *dev = litest_current_device();
	struct libinput_device *device = dev->libinput_device;
	enum libinput_config_status status;

	ck_assert(!libinput_device_config_left_handed_is_available(device));

	ck_assert_int_eq(libinput_device_config_left_handed_get_default(device),
			 0);
	ck_assert_int_eq(libinput_device_config_left_handed_get(device),
			 0);

	status = libinput_device_config_left_handed_set(dev->libinput_device, 1);
	ck_assert_int_eq(status, LIBINPUT_CONFIG_STATUS_UNSUPPORTED);

	ck_assert_int_eq(libinput_device_config_left_handed_get(device),
			 0);
	ck_assert_int_eq(libinput_device_config_left_handed_get_default(device),
			 0);

	status = libinput_device_config_left_handed_set(dev->libinput_device, 0);
	ck_assert_int_eq(status, LIBINPUT_CONFIG_STATUS_UNSUPPORTED);

	ck_assert_int_eq(libinput_device_config_left_handed_get(device),
			 0);
	ck_assert_int_eq(libinput_device_config_left_handed_get_default(device),
			 0);
}
END_TEST

START_TEST(pad_left_handed_ring)
{
#if HAVE_LIBWACOM
	struct litest_device *dev = litest_current_device();
	struct libinput *li = dev->libinput;
	struct libinput_event *ev;
	struct libinput_event_tablet_pad *pev;
	int val;
	double degrees, expected;

	libinput_device_config_left_handed_set(dev->libinput_device, 1);

	litest_pad_ring_start(dev, 10);

	litest_drain_events(li);

	/* Wacom's 0 value is at 275 degrees -> 90 in left-handed mode*/
	expected = 90;

	for (val = 0; val < 100; val += 10) {
		litest_pad_ring_change(dev, val);
		libinput_dispatch(li);

		ev = libinput_get_event(li);
		pev = litest_is_pad_ring_event(ev,
					       0,
					       LIBINPUT_TABLET_PAD_RING_SOURCE_FINGER);

		degrees = libinput_event_tablet_pad_get_ring_position(pev);
		ck_assert_double_ge(degrees, 0.0);
		ck_assert_double_lt(degrees, 360.0);

		/* rounding errors, mostly caused by small physical range */
		ck_assert_double_ge(degrees, expected - 2);
		ck_assert_double_le(degrees, expected + 2);

		libinput_event_destroy(ev);

		expected = fmod(degrees + 36, 360);
	}

	litest_pad_ring_end(dev);
#endif
}
END_TEST

START_TEST(pad_mode_groups)
{
	struct litest_device *dev = litest_current_device();
	struct libinput_device *device = dev->libinput_device;
	struct libinput_tablet_pad_mode_group *group;
	int ngroups;
	int i;

	ngroups = libinput_device_tablet_pad_get_num_mode_groups(device);
	ck_assert_int_eq(ngroups, 1);

	for (i = 0; i < ngroups; i++) {
		group = libinput_device_tablet_pad_get_mode_group(device, i);
		ck_assert_notnull(group);
		ck_assert_int_eq(libinput_tablet_pad_mode_group_get_index(group),
				 i);
	}

	group = libinput_device_tablet_pad_get_mode_group(device, ngroups);
	ck_assert(group == NULL);
	group = libinput_device_tablet_pad_get_mode_group(device, ngroups + 1);
	ck_assert(group == NULL);
}
END_TEST

START_TEST(pad_mode_groups_userdata)
{
	struct litest_device *dev = litest_current_device();
	struct libinput_device *device = dev->libinput_device;
	struct libinput_tablet_pad_mode_group *group;
	int rc;
	void *userdata = &rc;

	group = libinput_device_tablet_pad_get_mode_group(device, 0);
	ck_assert(libinput_tablet_pad_mode_group_get_user_data(group) ==
		  NULL);
	libinput_tablet_pad_mode_group_set_user_data(group, userdata);
	ck_assert(libinput_tablet_pad_mode_group_get_user_data(group) ==
		  &rc);

	libinput_tablet_pad_mode_group_set_user_data(group, NULL);
	ck_assert(libinput_tablet_pad_mode_group_get_user_data(group) ==
		  NULL);
}
END_TEST

START_TEST(pad_mode_groups_ref)
{
	struct litest_device *dev = litest_current_device();
	struct libinput_device *device = dev->libinput_device;
	struct libinput_tablet_pad_mode_group *group, *g;

	group = libinput_device_tablet_pad_get_mode_group(device, 0);
	g = libinput_tablet_pad_mode_group_ref(group);
	ck_assert_ptr_eq(g, group);

	/* We don't expect this to be freed. Any leaks should be caught by
	 * valgrind. */
	g = libinput_tablet_pad_mode_group_unref(group);
	ck_assert_ptr_eq(g, group);
}
END_TEST

START_TEST(pad_mode_group_mode)
{
	struct litest_device *dev = litest_current_device();
	struct libinput_device *device = dev->libinput_device;
	struct libinput_tablet_pad_mode_group *group;
	int ngroups;
	unsigned int nmodes, mode;

	ngroups = libinput_device_tablet_pad_get_num_mode_groups(device);
	ck_assert_int_ge(ngroups, 1);

	group = libinput_device_tablet_pad_get_mode_group(device, 0);

	nmodes = libinput_tablet_pad_mode_group_get_num_modes(group);
	ck_assert_int_eq(nmodes, 1);

	mode = libinput_tablet_pad_mode_group_get_mode(group);
	ck_assert_int_lt(mode, nmodes);
}
END_TEST

START_TEST(pad_mode_group_has)
{
	struct litest_device *dev = litest_current_device();
	struct libinput_device *device = dev->libinput_device;
	struct libinput_tablet_pad_mode_group *group;
	int ngroups, nbuttons, nrings, nstrips;
	int i, b, r, s;

	ngroups = libinput_device_tablet_pad_get_num_mode_groups(device);
	ck_assert_int_ge(ngroups, 1);

	nbuttons = libinput_device_tablet_pad_get_num_buttons(device);
	nrings = libinput_device_tablet_pad_get_num_rings(device);
	nstrips = libinput_device_tablet_pad_get_num_strips(device);

	for (b = 0; b < nbuttons; b++) {
		bool found = false;
		for (i = 0; i < ngroups; i++) {
			group = libinput_device_tablet_pad_get_mode_group(device,
									  i);
			if (libinput_tablet_pad_mode_group_has_button(group,
								      b)) {
				ck_assert(!found);
				found = true;
			}
		}
		ck_assert(found);
	}

	for (s = 0; s < nstrips; s++) {
		bool found = false;
		for (i = 0; i < ngroups; i++) {
			group = libinput_device_tablet_pad_get_mode_group(device,
									  i);
			if (libinput_tablet_pad_mode_group_has_strip(group,
								     s)) {
				ck_assert(!found);
				found = true;
			}
		}
		ck_assert(found);
	}

	for (r = 0; r < nrings; r++) {
		bool found = false;
		for (i = 0; i < ngroups; i++) {
			group = libinput_device_tablet_pad_get_mode_group(device,
									  i);
			if (libinput_tablet_pad_mode_group_has_ring(group,
								    r)) {
				ck_assert(!found);
				found = true;
			}
		}
		ck_assert(found);
	}
}
END_TEST

START_TEST(pad_mode_group_has_invalid)
{
	struct litest_device *dev = litest_current_device();
	struct libinput_device *device = dev->libinput_device;
	struct libinput_tablet_pad_mode_group* group;
	int ngroups, nbuttons, nrings, nstrips;
	int i;
	int rc;

	ngroups = libinput_device_tablet_pad_get_num_mode_groups(device);
	ck_assert_int_ge(ngroups, 1);

	nbuttons = libinput_device_tablet_pad_get_num_buttons(device);
	nrings = libinput_device_tablet_pad_get_num_rings(device);
	nstrips = libinput_device_tablet_pad_get_num_strips(device);

	for (i = 0; i < ngroups; i++) {
		group = libinput_device_tablet_pad_get_mode_group(device, i);
		rc = libinput_tablet_pad_mode_group_has_button(group,
							       nbuttons);
		ck_assert_int_eq(rc, 0);
		rc = libinput_tablet_pad_mode_group_has_button(group,
							       nbuttons + 1);
		ck_assert_int_eq(rc, 0);
		rc = libinput_tablet_pad_mode_group_has_button(group,
							       0x1000000);
		ck_assert_int_eq(rc, 0);
	}

	for (i = 0; i < ngroups; i++) {
		group = libinput_device_tablet_pad_get_mode_group(device, i);
		rc = libinput_tablet_pad_mode_group_has_strip(group,
							      nstrips);
		ck_assert_int_eq(rc, 0);
		rc = libinput_tablet_pad_mode_group_has_strip(group,
							       nstrips + 1);
		ck_assert_int_eq(rc, 0);
		rc = libinput_tablet_pad_mode_group_has_strip(group,
							       0x1000000);
		ck_assert_int_eq(rc, 0);
	}

	for (i = 0; i < ngroups; i++) {
		group = libinput_device_tablet_pad_get_mode_group(device, i);
		rc = libinput_tablet_pad_mode_group_has_ring(group,
							     nrings);
		ck_assert_int_eq(rc, 0);
		rc = libinput_tablet_pad_mode_group_has_ring(group,
							     nrings + 1);
		ck_assert_int_eq(rc, 0);
		rc = libinput_tablet_pad_mode_group_has_ring(group,
							     0x1000000);
		ck_assert_int_eq(rc, 0);
	}
}
END_TEST

START_TEST(pad_mode_group_has_no_toggle)
{
	struct litest_device *dev = litest_current_device();
	struct libinput_device *device = dev->libinput_device;
	struct libinput_tablet_pad_mode_group* group;
	int ngroups, nbuttons;
	int i, b;

	ngroups = libinput_device_tablet_pad_get_num_mode_groups(device);
	ck_assert_int_ge(ngroups, 1);

	/* Button must not be toggle buttons */
	nbuttons = libinput_device_tablet_pad_get_num_buttons(device);
	for (i = 0; i < ngroups; i++) {
		group = libinput_device_tablet_pad_get_mode_group(device, i);
		for (b = 0; b < nbuttons; b++) {
			ck_assert(!libinput_tablet_pad_mode_group_button_is_toggle(
								    group,
								    b));
		}
	}
}
END_TEST

TEST_COLLECTION(tablet_pad)
{
	litest_add("pad:cap", pad_cap, LITEST_TABLET_PAD, LITEST_ANY);
	litest_add("pad:cap", pad_no_cap, LITEST_ANY, LITEST_TABLET_PAD);

	litest_add("pad:time", pad_time, LITEST_TABLET_PAD, LITEST_ANY);

	litest_add("pad:button", pad_num_buttons, LITEST_TABLET_PAD, LITEST_ANY);
	litest_add("pad:button", pad_num_buttons_libwacom, LITEST_TABLET_PAD, LITEST_ANY);
	litest_add("pad:button", pad_button_intuos, LITEST_TABLET_PAD, LITEST_ANY);
	litest_add("pad:button", pad_button_bamboo, LITEST_TABLET_PAD, LITEST_ANY);
	litest_add("pad:button", pad_button_libwacom, LITEST_TABLET_PAD, LITEST_ANY);
	litest_add("pad:button", pad_button_mode_groups, LITEST_TABLET_PAD, LITEST_ANY);

	litest_add("pad:ring", pad_has_ring, LITEST_RING, LITEST_ANY);
	litest_add("pad:ring", pad_ring, LITEST_RING, LITEST_ANY);
	litest_add("pad:ring", pad_ring_finger_up, LITEST_RING, LITEST_ANY);

	litest_add("pad:strip", pad_has_strip, LITEST_STRIP, LITEST_ANY);
	litest_add("pad:strip", pad_strip, LITEST_STRIP, LITEST_ANY);
	litest_add("pad:strip", pad_strip_finger_up, LITEST_STRIP, LITEST_ANY);

	litest_add_for_device("pad:left_handed", pad_left_handed_default, LITEST_WACOM_INTUOS5_PAD);
	litest_add_for_device("pad:left_handed", pad_no_left_handed, LITEST_WACOM_INTUOS3_PAD);
	litest_add_for_device("pad:left_handed", pad_left_handed_ring, LITEST_WACOM_INTUOS5_PAD);
	/* None of the current strip tablets are left-handed */

	litest_add("pad:modes", pad_mode_groups, LITEST_TABLET_PAD, LITEST_ANY);
	litest_add("pad:modes", pad_mode_groups_userdata, LITEST_TABLET_PAD, LITEST_ANY);
	litest_add("pad:modes", pad_mode_groups_ref, LITEST_TABLET_PAD, LITEST_ANY);
	litest_add("pad:modes", pad_mode_group_mode, LITEST_TABLET_PAD, LITEST_ANY);
	litest_add("pad:modes", pad_mode_group_has, LITEST_TABLET_PAD, LITEST_ANY);
	litest_add("pad:modes", pad_mode_group_has_invalid, LITEST_TABLET_PAD, LITEST_ANY);
	litest_add("pad:modes", pad_mode_group_has_no_toggle, LITEST_TABLET_PAD, LITEST_ANY);
}