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input-remapper/tests/testcases/test_reader.py
sezanzeb a5b5f562c8 #37 mapping left mouse buttons
2021-04-02 16:33:20 +02:00

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#!/usr/bin/python3
# -*- coding: utf-8 -*-
# key-mapper - GUI for device specific keyboard mappings
# Copyright (C) 2021 sezanzeb <proxima@sezanzeb.de>
#
# This file is part of key-mapper.
#
# key-mapper is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# key-mapper is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with key-mapper. If not, see <https://www.gnu.org/licenses/>.
import unittest
from unittest import mock
import time
import multiprocessing
from evdev.ecodes import EV_KEY, EV_ABS, ABS_HAT0X, KEY_COMMA, \
BTN_LEFT, BTN_TOOL_DOUBLETAP, ABS_Z, ABS_Y, KEY_A, \
EV_REL, REL_WHEEL, REL_X, ABS_X, ABS_RZ
from keymapper.gui.reader import reader, will_report_up
from keymapper.state import custom_mapping
from keymapper.config import BUTTONS, MOUSE
from keymapper.key import Key
from keymapper.gui.helper import RootHelper
from keymapper.getdevices import set_devices, get_devices, refresh_devices
from tests.test import new_event, push_events, send_event_to_reader, \
EVENT_READ_TIMEOUT, START_READING_DELAY, quick_cleanup, MAX_ABS
CODE_1 = 100
CODE_2 = 101
CODE_3 = 102
def wait(func, timeout=1.0):
"""Wait for func to return True."""
iterations = 0
sleepytime = 0.1
while not func():
time.sleep(sleepytime)
iterations += 1
if iterations * sleepytime > timeout:
break
class TestReader(unittest.TestCase):
def setUp(self):
self.helper = None
def tearDown(self):
quick_cleanup()
if self.helper is not None:
self.helper.join()
refresh_devices()
def create_helper(self):
# this will cause pending events to be copied over to the helper
# process
def start_helper():
helper = RootHelper()
helper.run()
self.helper = multiprocessing.Process(target=start_helper)
self.helper.start()
time.sleep(0.1)
def test_will_report_up(self):
self.assertFalse(will_report_up(EV_REL))
self.assertTrue(will_report_up(EV_ABS))
self.assertTrue(will_report_up(EV_KEY))
def test_reading_1(self):
# a single event
push_events('device 1', [new_event(EV_ABS, ABS_HAT0X, 1)])
push_events('device 1', [new_event(EV_ABS, REL_X, 1)]) # mouse movements are ignored
self.create_helper()
reader.start_reading('device 1')
time.sleep(0.2)
self.assertEqual(reader.read(), (EV_ABS, ABS_HAT0X, 1))
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 1)
def test_reading_wheel(self):
# will be treated as released automatically at some point
self.create_helper()
reader.start_reading('device 1')
send_event_to_reader(new_event(EV_REL, REL_WHEEL, 0))
self.assertIsNone(reader.read())
send_event_to_reader(new_event(EV_REL, REL_WHEEL, 1))
result = reader.read()
self.assertIsInstance(result, Key)
self.assertEqual(result, (EV_REL, REL_WHEEL, 1))
self.assertEqual(result, ((EV_REL, REL_WHEEL, 1),))
self.assertNotEqual(result, ((EV_REL, REL_WHEEL, 1), (1, 1, 1)))
self.assertEqual(result.keys, ((EV_REL, REL_WHEEL, 1),))
# it won't return the same event twice
self.assertEqual(reader.read(), None)
# but it is still remembered unreleased
self.assertEqual(len(reader._unreleased), 1)
self.assertEqual(reader.get_unreleased_keys(), (EV_REL, REL_WHEEL, 1))
self.assertIsInstance(reader.get_unreleased_keys(), Key)
# as long as new wheel events arrive, it is considered unreleased
for _ in range(10):
send_event_to_reader(new_event(EV_REL, REL_WHEEL, 1))
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 1)
# read a few more times, at some point it is treated as unreleased
for _ in range(4):
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 0)
self.assertIsNone(reader.get_unreleased_keys())
"""combinations"""
send_event_to_reader(new_event(EV_REL, REL_WHEEL, 1, 1000))
send_event_to_reader(new_event(EV_KEY, KEY_COMMA, 1, 1001))
combi_1 = ((EV_REL, REL_WHEEL, 1), (EV_KEY, KEY_COMMA, 1))
combi_2 = ((EV_KEY, KEY_COMMA, 1), (EV_KEY, KEY_A, 1))
read = reader.read()
self.assertEqual(read, combi_1)
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 2)
self.assertEqual(reader.get_unreleased_keys(), combi_1)
# don't send new wheel down events, it should get released again
i = 0
while len(reader._unreleased) == 2:
read = reader.read()
if i == 100:
raise AssertionError('Did not release the wheel')
i += 1
# and only the comma remains. However, a changed combination is
# only returned when a new key is pressed. Only then the pressed
# down keys are collected in a new Key object.
self.assertEqual(read, None)
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 1)
self.assertEqual(reader.get_unreleased_keys(), combi_1[1])
# press down a new key, now it will return a different combination
send_event_to_reader(new_event(EV_KEY, KEY_A, 1, 1002))
self.assertEqual(reader.read(), combi_2)
self.assertEqual(len(reader._unreleased), 2)
# release all of them
send_event_to_reader(new_event(EV_KEY, KEY_COMMA, 0))
send_event_to_reader(new_event(EV_KEY, KEY_A, 0))
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 0)
self.assertEqual(reader.get_unreleased_keys(), None)
def test_change_wheel_direction(self):
# not just wheel, anything that suddenly reports a different value.
# as long as type and code are equal its the same key, so there is no
# way both directions can be held down.
self.assertEqual(reader.read(), None)
self.create_helper()
self.assertEqual(reader.read(), None)
reader.start_reading('device 1')
self.assertEqual(reader.read(), None)
send_event_to_reader(new_event(EV_REL, REL_WHEEL, 1))
self.assertEqual(reader.read(), (EV_REL, REL_WHEEL, 1))
self.assertEqual(len(reader._unreleased), 1)
self.assertEqual(reader.read(), None)
send_event_to_reader(new_event(EV_REL, REL_WHEEL, -1))
self.assertEqual(reader.read(), (EV_REL, REL_WHEEL, -1))
# notice that this is no combination of two sides, the previous
# entry in unreleased has to get overwritten. So there is still only
# one element in it.
self.assertEqual(len(reader._unreleased), 1)
self.assertEqual(reader.read(), None)
def test_change_device(self):
push_events('device 1', [
new_event(EV_KEY, 1, 1),
] * 100)
push_events('device 2', [
new_event(EV_KEY, 2, 1),
] * 100)
self.create_helper()
reader.start_reading('device 1')
time.sleep(0.1)
self.assertEqual(reader.read(), Key(EV_KEY, 1, 1))
reader.start_reading('device 2')
# it's plausible that right after sending the new read command more
# events from the old device might still appear. Give the helper
# some time to handle the new command.
time.sleep(0.1)
reader.clear()
time.sleep(0.1)
self.assertEqual(reader.read(), Key(EV_KEY, 2, 1))
def test_reading_2(self):
# a combination of events
push_events('device 1', [
new_event(EV_KEY, CODE_1, 1, 10000.1234),
new_event(EV_KEY, CODE_3, 1, 10001.1234),
new_event(EV_ABS, ABS_HAT0X, -1, 10002.1234)
])
self.create_helper()
reader.start_reading('device 1')
# sending anything arbitrary does not stop the helper
reader._commands.send(856794)
time.sleep(0.2)
self.assertEqual(reader.read(), (
(EV_KEY, CODE_1, 1),
(EV_KEY, CODE_3, 1),
(EV_ABS, ABS_HAT0X, -1)
))
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 3)
def test_reading_3(self):
self.create_helper()
# a combination of events via Socket with reads inbetween
reader.start_reading('gamepad')
send_event_to_reader(new_event(EV_KEY, CODE_1, 1, 1001))
self.assertEqual(reader.read(), (
(EV_KEY, CODE_1, 1)
))
custom_mapping.set('gamepad.joystick.left_purpose', BUTTONS)
send_event_to_reader(new_event(EV_ABS, ABS_Y, 1, 1002))
self.assertEqual(reader.read(), (
(EV_KEY, CODE_1, 1),
(EV_ABS, ABS_Y, 1)
))
send_event_to_reader(new_event(EV_ABS, ABS_HAT0X, -1, 1003))
self.assertEqual(reader.read(), (
(EV_KEY, CODE_1, 1),
(EV_ABS, ABS_Y, 1),
(EV_ABS, ABS_HAT0X, -1)
))
# adding duplicate down events won't report a different combination.
# import for triggers, as they keep reporting more down-events before
# they are released
send_event_to_reader(new_event(EV_ABS, ABS_Y, 1, 1005))
self.assertEqual(reader.read(), None)
send_event_to_reader(new_event(EV_ABS, ABS_HAT0X, -1, 1006))
self.assertEqual(reader.read(), None)
send_event_to_reader(new_event(EV_KEY, CODE_1, 0, 1004))
read = reader.read()
self.assertEqual(read, None)
send_event_to_reader(new_event(EV_ABS, ABS_Y, 0, 1007))
self.assertEqual(reader.read(), None)
send_event_to_reader(new_event(EV_KEY, ABS_HAT0X, 0, 1008))
self.assertEqual(reader.read(), None)
def test_reads_joysticks(self):
# if their purpose is "buttons"
custom_mapping.set('gamepad.joystick.left_purpose', BUTTONS)
push_events('gamepad', [
new_event(EV_ABS, ABS_Y, MAX_ABS),
# the value of that one is interpreted as release, because
# it is too small
new_event(EV_ABS, ABS_X, MAX_ABS // 10)
])
self.create_helper()
reader.start_reading('gamepad')
time.sleep(0.2)
self.assertEqual(reader.read(), (EV_ABS, ABS_Y, 1))
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 1)
reader._unreleased = {}
custom_mapping.set('gamepad.joystick.left_purpose', MOUSE)
push_events('gamepad', [
new_event(EV_ABS, ABS_Y, MAX_ABS)
])
self.create_helper()
reader.start_reading('gamepad')
time.sleep(0.1)
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 0)
def test_combine_triggers(self):
reader.start_reading('device 1')
i = 0
def next_timestamp():
nonlocal i
i += 1
return time.time() + i
# based on an observed bug
send_event_to_reader(new_event(3, 1, 0, next_timestamp()))
send_event_to_reader(new_event(3, 0, 0, next_timestamp()))
send_event_to_reader(new_event(3, 2, 1, next_timestamp()))
self.assertEqual(reader.read(), (EV_ABS, ABS_Z, 1))
send_event_to_reader(new_event(3, 0, 0, next_timestamp()))
send_event_to_reader(new_event(3, 5, 1, next_timestamp()))
self.assertEqual(reader.read(), ((EV_ABS, ABS_Z, 1), (EV_ABS, ABS_RZ, 1)))
send_event_to_reader(new_event(3, 5, 0, next_timestamp()))
send_event_to_reader(new_event(3, 0, 0, next_timestamp()))
send_event_to_reader(new_event(3, 1, 0, next_timestamp()))
self.assertEqual(reader.read(), None)
send_event_to_reader(new_event(3, 2, 1, next_timestamp()))
send_event_to_reader(new_event(3, 1, 0, next_timestamp()))
send_event_to_reader(new_event(3, 0, 0, next_timestamp()))
# due to not properly handling the duplicate down event it cleared
# the combination and returned it. Instead it should report None
# and by doing that keep the previous combination.
self.assertEqual(reader.read(), None)
def test_blacklist(self):
push_events('device 1', [
new_event(EV_KEY, BTN_TOOL_DOUBLETAP, 1),
new_event(EV_KEY, CODE_2, 1),
new_event(EV_KEY, BTN_TOOL_DOUBLETAP, 1),
])
self.create_helper()
reader.start_reading('device 1')
time.sleep(0.1)
self.assertEqual(reader.read(), (EV_KEY, CODE_2, 1))
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 1)
def test_ignore_value_2(self):
# this is not a combination, because (EV_KEY CODE_3, 2) is ignored
push_events('device 1', [
new_event(EV_ABS, ABS_HAT0X, 1),
new_event(EV_KEY, CODE_3, 2)
])
self.create_helper()
reader.start_reading('device 1')
time.sleep(0.2)
self.assertEqual(reader.read(), (EV_ABS, ABS_HAT0X, 1))
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 1)
def test_reading_ignore_up(self):
push_events('device 1', [
new_event(EV_KEY, CODE_1, 0, 10),
new_event(EV_KEY, CODE_2, 1, 11),
new_event(EV_KEY, CODE_3, 0, 12),
])
self.create_helper()
reader.start_reading('device 1')
time.sleep(0.1)
self.assertEqual(reader.read(), (EV_KEY, CODE_2, 1))
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 1)
def test_reading_ignore_duplicate_down(self):
send_event_to_reader(new_event(EV_ABS, ABS_Z, 1, 10))
self.assertEqual(reader.read(), (EV_ABS, ABS_Z, 1))
self.assertEqual(reader.read(), None)
# duplicate
send_event_to_reader(new_event(EV_ABS, ABS_Z, 1, 10))
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 1)
self.assertEqual(len(reader.get_unreleased_keys()), 1)
self.assertIsInstance(reader.get_unreleased_keys(), Key)
# release
send_event_to_reader(new_event(EV_ABS, ABS_Z, 0, 10))
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 0)
self.assertIsNone(reader.get_unreleased_keys())
def test_wrong_device(self):
push_events('device 1', [
new_event(EV_KEY, CODE_1, 1),
new_event(EV_KEY, CODE_2, 1),
new_event(EV_KEY, CODE_3, 1)
])
self.create_helper()
reader.start_reading('device 2')
time.sleep(EVENT_READ_TIMEOUT * 5)
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 0)
def test_keymapper_devices(self):
# Don't read from keymapper devices, their keycodes are not
# representative for the original key. As long as this is not
# intentionally programmed it won't even do that. But it was at some
# point.
push_events('key-mapper device 2', [
new_event(EV_KEY, CODE_1, 1),
new_event(EV_KEY, CODE_2, 1),
new_event(EV_KEY, CODE_3, 1)
])
self.create_helper()
reader.start_reading('device 2')
time.sleep(EVENT_READ_TIMEOUT * 5)
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 0)
def test_clear(self):
push_events('device 1', [
new_event(EV_KEY, CODE_1, 1),
new_event(EV_KEY, CODE_2, 1),
new_event(EV_KEY, CODE_3, 1)
] * 15)
self.create_helper()
reader.start_reading('device 1')
time.sleep(START_READING_DELAY + EVENT_READ_TIMEOUT * 3)
reader.read()
self.assertEqual(len(reader._unreleased), 3)
self.assertIsNotNone(reader.previous_event)
self.assertIsNotNone(reader.previous_result)
# make the helper send more events to the reader
time.sleep(EVENT_READ_TIMEOUT * 2)
self.assertTrue(reader._results.poll())
reader.clear()
self.assertFalse(reader._results.poll())
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 0)
self.assertIsNone(reader.get_unreleased_keys())
self.assertIsNone(reader.previous_event)
self.assertIsNone(reader.previous_result)
self.tearDown()
def test_switch_device(self):
push_events('device 2', [new_event(EV_KEY, CODE_1, 1)])
push_events('device 1', [new_event(EV_KEY, CODE_3, 1)])
self.create_helper()
reader.start_reading('device 2')
self.assertFalse(reader._results.poll())
self.assertEqual(reader.device_name, 'device 2')
time.sleep(EVENT_READ_TIMEOUT * 5)
self.assertTrue(reader._results.poll())
reader.start_reading('device 1')
self.assertEqual(reader.device_name, 'device 1')
self.assertFalse(reader._results.poll()) # pipe resets
time.sleep(EVENT_READ_TIMEOUT * 5)
self.assertTrue(reader._results.poll())
self.assertEqual(reader.read(), (EV_KEY, CODE_3, 1))
self.assertEqual(reader.read(), None)
self.assertEqual(len(reader._unreleased), 1)
def test_terminate(self):
self.create_helper()
reader.start_reading('device 1')
push_events('device 1', [new_event(EV_KEY, CODE_3, 1)])
time.sleep(START_READING_DELAY + EVENT_READ_TIMEOUT)
self.assertTrue(reader._results.poll())
reader.terminate()
reader.clear()
time.sleep(EVENT_READ_TIMEOUT)
# no new events arrive after terminating
push_events('device 1', [new_event(EV_KEY, CODE_3, 1)])
time.sleep(EVENT_READ_TIMEOUT * 3)
self.assertFalse(reader._results.poll())
def test_are_new_devices_available(self):
self.create_helper()
set_devices({})
# read stuff from the helper, which includes the devices
self.assertFalse(reader.are_new_devices_available())
reader.read()
self.assertTrue(reader.are_new_devices_available())
# a bit weird, but it assumes the gui handled that and returns
# false afterwards
self.assertFalse(reader.are_new_devices_available())
# send the same devices again
reader._get_event({
'type': 'devices',
'message': get_devices()
})
self.assertFalse(reader.are_new_devices_available())
# send changed devices
message = {**get_devices()}
del message['device 1']
reader._get_event({
'type': 'devices',
'message': message
})
self.assertTrue(reader.are_new_devices_available())
self.assertFalse(reader.are_new_devices_available())
if __name__ == "__main__":
unittest.main()
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