input-remapper/tests/testcases/test_daemon.py

449 lines
16 KiB
Python

#!/usr/bin/python3
# -*- coding: utf-8 -*-
# key-mapper - GUI for device specific keyboard mappings
# Copyright (C) 2021 sezanzeb <proxima@hip70890b.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 os
import multiprocessing
import unittest
import time
import subprocess
import json
import evdev
from evdev.ecodes import EV_KEY, EV_ABS
from gi.repository import Gtk
from pydbus import SystemBus
from keymapper.state import custom_mapping, system_mapping
from keymapper.config import config
from keymapper.getdevices import get_devices
from keymapper.paths import get_preset_path, get_config_path
from keymapper.key import Key
from keymapper.mapping import Mapping
from keymapper.injection.injector import STARTING, RUNNING, STOPPED, UNKNOWN
from keymapper.daemon import Daemon, get_dbus_interface, BUS_NAME, \
path_to_device_name
from tests.test import cleanup, uinput_write_history_pipe, new_event, \
pending_events, is_service_running, fixtures, tmp
def gtk_iteration():
"""Iterate while events are pending."""
while Gtk.events_pending():
Gtk.main_iteration()
class TestDBusDaemon(unittest.TestCase):
def setUp(self):
self.process = multiprocessing.Process(
target=os.system,
args=('key-mapper-service -d',)
)
self.process.start()
time.sleep(0.5)
self.interface = get_dbus_interface()
def tearDown(self):
self.interface.stop_all()
os.system('pkill -f key-mapper-service')
for _ in range(10):
time.sleep(0.1)
if not is_service_running():
break
self.assertFalse(is_service_running())
def test_can_connect(self):
# it's a remote dbus object
self.assertEqual(self.interface._bus_name, BUS_NAME)
self.assertFalse(isinstance(self.interface, Daemon))
self.assertEqual(self.interface.hello('foo'), 'foo')
check_output = subprocess.check_output
dbus_get = type(SystemBus()).get
class TestDaemon(unittest.TestCase):
new_fixture = '/dev/input/event9876'
def setUp(self):
self.grab = evdev.InputDevice.grab
self.daemon = None
def tearDown(self):
# avoid race conditions with other tests, daemon may run processes
if self.daemon is not None:
self.daemon.stop_all()
self.daemon = None
evdev.InputDevice.grab = self.grab
subprocess.check_output = check_output
type(SystemBus()).get = dbus_get
cleanup()
def test_path_to_device_name(self):
self.assertEqual(path_to_device_name('/dev/input/event13'), 'device 1')
self.assertEqual(path_to_device_name('/dev/input/event30'), 'gamepad')
self.assertEqual(path_to_device_name('/dev/input/event1234'), None)
self.assertEqual(path_to_device_name('asdf'), 'asdf')
def test_get_dbus_interface(self):
# no daemon runs, should return an instance of the object instead
self.assertFalse(is_service_running())
self.assertIsInstance(get_dbus_interface(), Daemon)
self.assertIsNone(get_dbus_interface(False))
subprocess.check_output = lambda *args: None
self.assertTrue(is_service_running())
# now it actually tries to use the dbus, but it fails
# because none exists, so it returns an instance again
self.assertIsInstance(get_dbus_interface(), Daemon)
self.assertIsNone(get_dbus_interface(False))
class FakeConnection:
pass
type(SystemBus()).get = lambda *args: FakeConnection()
self.assertIsInstance(get_dbus_interface(), FakeConnection)
self.assertIsInstance(get_dbus_interface(False), FakeConnection)
def test_daemon(self):
# remove the existing system mapping to force our own into it
os.remove(get_config_path('xmodmap.json'))
ev_1 = (EV_KEY, 9)
ev_2 = (EV_ABS, 12)
keycode_to_1 = 100
keycode_to_2 = 101
device = 'device 2'
custom_mapping.change(Key(*ev_1, 1), 'a')
custom_mapping.change(Key(*ev_2, -1), 'b')
system_mapping.clear()
# since this is in the same memory as the daemon, there is no need
# to save it to disk
system_mapping._set('a', keycode_to_1)
system_mapping._set('b', keycode_to_2)
preset = 'foo'
custom_mapping.save(get_preset_path(device, preset))
config.set_autoload_preset(device, preset)
"""injection 1"""
# should forward the event unchanged
pending_events[device] = [
new_event(EV_KEY, 13, 1)
]
self.daemon = Daemon()
self.daemon.set_config_dir(get_config_path())
self.assertFalse(uinput_write_history_pipe[0].poll())
self.daemon.start_injecting(device, preset)
self.assertEqual(self.daemon.get_state(device), STARTING)
self.assertEqual(self.daemon.get_state('device 1'), UNKNOWN)
event = uinput_write_history_pipe[0].recv()
self.assertEqual(self.daemon.get_state(device), RUNNING)
self.assertEqual(event.type, EV_KEY)
self.assertEqual(event.code, 13)
self.assertEqual(event.value, 1)
self.daemon.stop_injecting(device)
self.assertEqual(self.daemon.get_state(device), STOPPED)
time.sleep(0.1)
try:
self.assertFalse(uinput_write_history_pipe[0].poll())
except AssertionError:
print('Unexpected', uinput_write_history_pipe[0].recv())
# possibly a duplicate write!
raise
"""injection 2"""
# -1234 will be normalized to -1 by the injector
pending_events[device] = [
new_event(*ev_2, -1234)
]
self.daemon.start_injecting(device, preset)
time.sleep(0.1)
self.assertTrue(uinput_write_history_pipe[0].poll())
# the written key is a key-down event, not the original
# event value of -1234
event = uinput_write_history_pipe[0].recv()
self.assertEqual(event.type, EV_KEY)
self.assertEqual(event.code, keycode_to_2)
self.assertEqual(event.value, 1)
def test_refresh_devices_on_start(self):
os.remove(get_config_path('xmodmap.json'))
ev = (EV_KEY, 9)
keycode_to = 100
device = '9876 name'
# this test only makes sense if this device is unknown yet
self.assertIsNone(get_devices().get(device))
custom_mapping.change(Key(*ev, 1), 'a')
system_mapping.clear()
system_mapping._set('a', keycode_to)
# make the daemon load the file instead
with open(get_config_path('xmodmap.json'), 'w') as file:
json.dump(system_mapping._mapping, file, indent=4)
system_mapping.clear()
preset = 'foo'
custom_mapping.save(get_preset_path(device, preset))
config.set_autoload_preset(device, preset)
pending_events[device] = [
new_event(*ev, 1)
]
self.daemon = Daemon()
# make sure the devices are populated
get_devices()
fixtures[self.new_fixture] = {
'capabilities': {evdev.ecodes.EV_KEY: [ev[1]]},
'phys': '9876 phys',
'info': evdev.device.DeviceInfo(4, 5, 6, 7),
'name': device
}
self.daemon.set_config_dir(get_config_path())
self.daemon.start_injecting(device, preset)
# test if the injector called refresh_devices successfully
self.assertIsNotNone(get_devices().get(device))
time.sleep(0.1)
self.assertTrue(uinput_write_history_pipe[0].poll())
event = uinput_write_history_pipe[0].recv()
self.assertEqual(event.t, (EV_KEY, keycode_to, 1))
self.daemon.stop_injecting(device)
self.assertEqual(self.daemon.get_state(device), STOPPED)
def test_refresh_devices_for_unknown_paths(self):
device = '9876 name'
# this test only makes sense if this device is unknown yet
self.assertIsNone(get_devices().get(device))
self.daemon = Daemon()
# make sure the devices are populated
get_devices()
self.daemon.refresh_devices()
fixtures[self.new_fixture] = {
'capabilities': {evdev.ecodes.EV_KEY: [evdev.ecodes.KEY_A]},
'phys': '9876 phys',
'info': evdev.device.DeviceInfo(4, 5, 6, 7),
'name': device
}
self.daemon._autoload(self.new_fixture)
# test if the injector called refresh_devices successfully
self.assertIsNotNone(get_devices().get(device))
def test_xmodmap_file(self):
from_keycode = evdev.ecodes.KEY_A
to_name = 'qux'
to_keycode = 100
event = (EV_KEY, from_keycode, 1)
device = 'device 2'
preset = 'foo'
config_dir = os.path.join(tmp, 'foo')
path = os.path.join(config_dir, 'presets', device, f'{preset}.json')
custom_mapping.change(Key(event), to_name)
custom_mapping.save(path)
system_mapping.clear()
pending_events[device] = [
new_event(*event)
]
# an existing config file is needed otherwise set_config_dir refuses
# to use the directory
config_path = os.path.join(config_dir, 'config.json')
config.path = config_path
config.save_config()
xmodmap_path = os.path.join(config_dir, 'xmodmap.json')
with open(xmodmap_path, 'w') as file:
file.write(f'{{"{to_name}":{to_keycode}}}')
self.daemon = Daemon()
self.daemon.set_config_dir(config_dir)
self.daemon.start_injecting(device, preset)
time.sleep(0.1)
self.assertTrue(uinput_write_history_pipe[0].poll())
event = uinput_write_history_pipe[0].recv()
self.assertEqual(event.type, EV_KEY)
self.assertEqual(event.code, to_keycode)
self.assertEqual(event.value, 1)
def test_start_stop(self):
device = 'device 1'
preset = 'preset8'
path = '/dev/input/event11'
daemon = Daemon()
self.daemon = daemon
mapping = Mapping()
mapping.change(Key(3, 2, 1), 'a')
mapping.save(get_preset_path(device, preset))
# the daemon needs set_config_dir first before doing anything
daemon.start_injecting(device, preset)
self.assertNotIn(device, daemon.autoload_history._autoload_history)
self.assertNotIn(device, daemon.injectors)
self.assertTrue(daemon.autoload_history.may_autoload(device, preset))
# start
daemon.set_config_dir(get_config_path())
daemon.start_injecting(path, preset)
# explicit start, not autoload, so the history stays empty
self.assertNotIn(device, daemon.autoload_history._autoload_history)
self.assertTrue(daemon.autoload_history.may_autoload(device, preset))
# path got translated to the device name
self.assertIn(device, daemon.injectors)
# after passing device and preset, the correct preset is read
# from the path
injector = daemon.injectors[device]
self.assertEqual(injector.context.mapping.get_character(Key(3, 2, 1)), 'a')
# start again
previous_injector = daemon.injectors[device]
self.assertNotEqual(previous_injector.get_state(), STOPPED)
daemon.start_injecting(device, preset)
self.assertNotIn(device, daemon.autoload_history._autoload_history)
self.assertTrue(daemon.autoload_history.may_autoload(device, preset))
self.assertIn(device, daemon.injectors)
self.assertEqual(previous_injector.get_state(), STOPPED)
# a different injetor is now running
self.assertNotEqual(previous_injector, daemon.injectors[device])
self.assertNotEqual(daemon.injectors[device].get_state(), STOPPED)
injector = daemon.injectors[device]
self.assertEqual(injector.context.mapping.get_character(Key(3, 2, 1)), 'a')
# trying to inject a non existing preset keeps the previous inejction
# alive
injector = daemon.injectors[device]
daemon.start_injecting(device, 'qux')
self.assertEqual(injector, daemon.injectors[device])
self.assertNotEqual(daemon.injectors[device].get_state(), STOPPED)
# trying to start injecting for an unknown device also just does
# nothing
daemon.start_injecting('quux', 'qux')
self.assertNotEqual(daemon.injectors[device].get_state(), STOPPED)
# after all that stuff autoload_history is still unharmed
self.assertNotIn(device, daemon.autoload_history._autoload_history)
self.assertTrue(daemon.autoload_history.may_autoload(device, preset))
# stop
daemon.stop_injecting(device)
self.assertNotIn(device, daemon.autoload_history._autoload_history)
self.assertEqual(daemon.injectors[device].get_state(), STOPPED)
self.assertTrue(daemon.autoload_history.may_autoload(device, preset))
def test_autoload(self):
device = 'device 1'
preset = 'preset7'
path = '/dev/input/event11'
daemon = Daemon()
self.daemon = daemon
self.daemon.set_config_dir(get_config_path())
mapping = Mapping()
mapping.change(Key(3, 2, 1), 'a')
mapping.save(get_preset_path(device, preset))
# no autoloading is configured yet
self.daemon._autoload(device)
self.daemon._autoload(path)
self.assertNotIn(device, daemon.autoload_history._autoload_history)
self.assertTrue(daemon.autoload_history.may_autoload(device, preset))
config.set_autoload_preset(device, preset)
config.save_config()
self.daemon.set_config_dir(get_config_path())
len_before = len(self.daemon.autoload_history._autoload_history)
self.daemon._autoload(path)
len_after = len(self.daemon.autoload_history._autoload_history)
self.assertEqual(daemon.autoload_history._autoload_history[device][1], preset)
self.assertFalse(daemon.autoload_history.may_autoload(device, preset))
injector = daemon.injectors[device]
self.assertEqual(len_before + 1, len_after)
# calling duplicate _autoload does nothing
self.daemon._autoload(path)
self.assertEqual(daemon.autoload_history._autoload_history[device][1], preset)
self.assertEqual(injector, daemon.injectors[device])
self.assertFalse(daemon.autoload_history.may_autoload(device, preset))
# explicit start_injecting clears the autoload history
self.daemon.start_injecting(device, preset)
self.assertTrue(daemon.autoload_history.may_autoload(device, preset))
# calling autoload for (yet) unknown devices does nothing
len_before = len(self.daemon.autoload_history._autoload_history)
self.daemon._autoload('/dev/input/qux')
len_after = len(self.daemon.autoload_history._autoload_history)
self.assertEqual(len_before, len_after)
# autoloading key-mapper devices does nothing
len_before = len(self.daemon.autoload_history._autoload_history)
self.daemon.autoload_single('/dev/input/event40')
len_after = len(self.daemon.autoload_history._autoload_history)
self.assertEqual(len_before, len_after)
if __name__ == "__main__":
unittest.main()