input-remapper/tests/test.py
2021-02-22 19:48:20 +01:00

545 lines
15 KiB
Python

#!/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/>.
"""Sets up key-mapper for the tests and runs them."""
import os
import sys
import shutil
import time
import copy
import unittest
import subprocess
import multiprocessing
import asyncio
import evdev
import gi
gi.require_version('Gtk', '3.0')
gi.require_version('GLib', '2.0')
assert not os.getcwd().endswith('tests')
def is_service_running():
"""Check if the daemon is running."""
try:
subprocess.check_output(['pgrep', '-f', 'key-mapper-service'])
return True
except subprocess.CalledProcessError:
return False
if is_service_running():
# let tests control daemon existance
raise Exception('Expected the service not to be running already.')
# make sure the "tests" module visible
sys.path.append(os.getcwd())
# give tests some time to test stuff while the process
# is still running
EVENT_READ_TIMEOUT = 0.01
MAX_ABS = 2 ** 15
tmp = '/tmp/key-mapper-test'
uinput_write_history = []
# for tests that makes the injector create its processes
uinput_write_history_pipe = multiprocessing.Pipe()
pending_events = {}
if os.path.exists(tmp):
shutil.rmtree(tmp)
def read_write_history_pipe():
"""convert the write history from the pipe to some easier to manage list"""
history = []
while uinput_write_history_pipe[0].poll():
event = uinput_write_history_pipe[0].recv()
history.append((event.type, event.code, event.value))
return history
# key-mapper is only interested in devices that have EV_KEY, add some
# random other stuff to test that they are ignored.
phys_1 = 'usb-0000:03:00.0-1/input2'
info_1 = evdev.device.DeviceInfo(1, 1, 1, 1)
fixtures = {
# device 1
'/dev/input/event11': {
'capabilities': {evdev.ecodes.EV_KEY: [], evdev.ecodes.EV_REL: [
evdev.ecodes.REL_WHEEL,
evdev.ecodes.REL_HWHEEL
]},
'phys': f'{phys_1}/input2',
'info': info_1,
'name': 'device 1 foo',
'group': 'device 1'
},
'/dev/input/event10': {
'capabilities': {evdev.ecodes.EV_KEY: list(evdev.ecodes.keys.keys())},
'phys': f'{phys_1}/input3',
'info': info_1,
'name': 'device 1',
'group': 'device 1'
},
'/dev/input/event13': {
'capabilities': {evdev.ecodes.EV_KEY: [], evdev.ecodes.EV_SYN: []},
'phys': f'{phys_1}/input1',
'info': info_1,
'name': 'device 1',
'group': 'device 1'
},
'/dev/input/event14': {
'capabilities': {evdev.ecodes.EV_SYN: []},
'phys': f'{phys_1}/input0',
'info': info_1,
'name': 'device 1 qux',
'group': 'device 1'
},
# device 2
'/dev/input/event20': {
'capabilities': {evdev.ecodes.EV_KEY: list(evdev.ecodes.keys.keys())},
'phys': 'usb-0000:03:00.0-2/input1',
'info': evdev.device.DeviceInfo(2, 1, 2, 1),
'name': 'device 2'
},
'/dev/input/event30': {
'capabilities': {
evdev.ecodes.EV_SYN: [],
evdev.ecodes.EV_ABS: [
evdev.ecodes.ABS_X,
evdev.ecodes.ABS_Y,
evdev.ecodes.ABS_RX,
evdev.ecodes.ABS_RY,
evdev.ecodes.ABS_HAT0X
],
evdev.ecodes.EV_KEY: [
evdev.ecodes.BTN_A
]
},
'phys': 'usb-0000:03:00.0-3/input1',
'info': evdev.device.DeviceInfo(3, 1, 3, 1),
'name': 'gamepad'
},
# device that is completely ignored
'/dev/input/event31': {
'capabilities': {evdev.ecodes.EV_SYN: []},
'phys': 'usb-0000:03:00.0-4/input1',
'info': evdev.device.DeviceInfo(4, 1, 4, 1),
'name': 'Power Button'
},
# key-mapper devices are not displayed in the ui, some instance
# of key-mapper started injecting apparently.
'/dev/input/event40': {
'capabilities': {evdev.ecodes.EV_KEY: list(evdev.ecodes.keys.keys())},
'phys': 'key-mapper/input1',
'info': evdev.device.DeviceInfo(5, 1, 5, 1),
'name': 'key-mapper device 2'
},
}
def get_events():
"""Get all events written by the injector."""
return uinput_write_history
def push_event(device, event):
"""Emit a fake event for a device.
Parameters
----------
device : string
For example 'device 1'
event : InputEvent
"""
if pending_events.get(device) is None:
pending_events[device] = []
pending_events[device].append(event)
def new_event(type, code, value, timestamp=None):
"""Create a new input_event."""
if timestamp is None:
timestamp = time.time()
sec = int(timestamp)
usec = timestamp % 1 * 1000000
event = evdev.InputEvent(sec, usec, type, code, value)
return event
def patch_paths():
from keymapper import paths
paths.CONFIG_PATH = '/tmp/key-mapper-test'
def patch_select():
# goes hand in hand with patch_evdev, which makes InputDevices return
# their names for `.fd`.
# rlist contains device names therefore, so select.select returns the
# name of the device for which events are pending.
import select
def new_select(rlist, *args):
ret = []
for thing in rlist:
if hasattr(thing, 'poll') and thing.poll():
# the reader receives msgs through pipes. If there is one
# ready, provide the pipe
ret.append(thing)
continue
if len(pending_events.get(thing, [])) > 0:
ret.append(thing)
# avoid a fast iterating infinite loop in the reader
time.sleep(0.01)
return [ret, [], []]
select.select = new_select
class InputDevice:
# expose as existing attribute, otherwise the patch for
# evdev < 1.0.0 will crash the test
path = None
def __init__(self, path):
if path != 'justdoit' and path not in fixtures:
raise FileNotFoundError()
self.path = path
fixture = fixtures.get(path, {})
self.phys = fixture.get('phys', 'unset')
self.info = fixture.get('info', evdev.device.DeviceInfo(None, None, None, None))
self.name = fixture.get('name', 'unset')
self.fd = self.name
# properties that exists for test purposes and are not part of
# the original object
self.group = fixture.get('group', self.name)
def log(self, key, msg):
print(
f'\033[90m' # color
f'{msg} "{self.name}" "{self.path}" {key}'
'\033[0m' # end style
)
def absinfo(self, *args):
raise Exception('Ubuntus version of evdev doesn\'t support .absinfo')
def grab(self):
pass
def read(self):
# the patched fake InputDevice objects read anything pending from
# that group, to be realistic it would have to check if the provided
# element is in its capabilities.
ret = [e.copy() for e in pending_events.get(self.group, [])]
if ret is not None:
# consume all of them
self.log('read all', self.group)
pending_events[self.group] = []
return ret
def read_one(self):
if pending_events.get(self.group) is None:
return None
if len(pending_events[self.group]) == 0:
return None
event = pending_events[self.group].pop(0).copy()
self.log(event, 'read_one')
return event
def read_loop(self):
"""Read all prepared events at once."""
if pending_events.get(self.group) is None:
return
while len(pending_events[self.group]) > 0:
result = pending_events[self.group].pop(0).copy()
self.log(result, 'read_loop')
yield result
time.sleep(EVENT_READ_TIMEOUT)
async def async_read_loop(self):
"""Read all prepared events at once."""
if pending_events.get(self.group) is None:
return
while len(pending_events[self.group]) > 0:
result = pending_events[self.group].pop(0).copy()
self.log(result, 'async_read_loop')
yield result
await asyncio.sleep(0.01)
def capabilities(self, absinfo=True, verbose=False):
result = copy.deepcopy(fixtures[self.path]['capabilities'])
if absinfo and evdev.ecodes.EV_ABS in result:
absinfo_obj = evdev.AbsInfo(
value=None, min=None, fuzz=None, flat=None,
resolution=None, max=MAX_ABS
)
result[evdev.ecodes.EV_ABS] = [
(stuff, absinfo_obj) for stuff in result[evdev.ecodes.EV_ABS]
]
return result
uinputs = {}
class UInput:
def __init__(self, events=None, name='unnamed', *args, **kwargs):
self.fd = 0
self.write_count = 0
self.device = InputDevice('justdoit')
self.name = name
self.events = events
self.write_history = []
global uinputs
uinputs[name] = self
def capabilities(self, *args, **kwargs):
return self.events
def write(self, type, code, value):
self.write_count += 1
event = new_event(type, code, value)
uinput_write_history.append(event)
uinput_write_history_pipe[1].send(event)
self.write_history.append(event)
print(
f'\033[90m' # color
f'{(type, code, value)} written'
'\033[0m' # end style
)
def syn(self):
pass
class InputEvent(evdev.InputEvent):
def __init__(self, sec, usec, type, code, value):
self.t = (type, code, value)
super().__init__(sec, usec, type, code, value)
def copy(self):
return InputEvent(
self.sec,
self.usec,
self.type,
self.code,
self.value
)
def patch_evdev():
def list_devices():
return fixtures.keys()
evdev.list_devices = list_devices
evdev.InputDevice = InputDevice
evdev.UInput = UInput
evdev.InputEvent = InputEvent
def patch_events():
# improve logging of stuff
evdev.InputEvent.__str__ = lambda self: (
f'InputEvent{(self.type, self.code, self.value)}'
)
def clear_write_history():
"""Empty the history in preparation for the next test."""
while len(uinput_write_history) > 0:
uinput_write_history.pop()
while uinput_write_history_pipe[0].poll():
uinput_write_history_pipe[0].recv()
# quickly fake some stuff before any other file gets a chance to import
# the original versions
patch_paths()
patch_evdev()
patch_select()
patch_events()
from keymapper.logger import update_verbosity
from keymapper.injection.injector import Injector
from keymapper.config import config
from keymapper.gui.reader import keycode_reader
from keymapper.getdevices import refresh_devices
from keymapper.state import system_mapping, custom_mapping
from keymapper.paths import get_config_path
from keymapper.injection.keycode_mapper import active_macros, unreleased
# no need for a high number in tests
Injector.regrab_timeout = 0.15
_fixture_copy = copy.deepcopy(fixtures)
environ_copy = copy.deepcopy(os.environ)
def quick_cleanup(log=True):
"""Reset the applications state."""
if log:
print('quick cleanup')
keycode_reader.stop_reading()
keycode_reader.__init__()
if asyncio.get_event_loop().is_running():
for task in asyncio.all_tasks():
task.cancel()
if os.path.exists(tmp):
shutil.rmtree(tmp)
config.path = os.path.join(get_config_path(), 'config.json')
config.clear_config()
config.save_config()
system_mapping.populate()
custom_mapping.empty()
custom_mapping.clear_config()
custom_mapping.changed = False
clear_write_history()
for name in list(uinputs.keys()):
del uinputs[name]
for key in list(active_macros.keys()):
del active_macros[key]
for key in list(unreleased.keys()):
del unreleased[key]
for key in list(pending_events.keys()):
del pending_events[key]
for path in list(fixtures.keys()):
if path not in _fixture_copy:
del fixtures[path]
for path in list(_fixture_copy.keys()):
if path not in fixtures:
fixtures[path] = _fixture_copy[path]
os.environ.update(environ_copy)
for key in list(os.environ.keys()):
if key not in environ_copy:
del os.environ[key]
def cleanup():
"""Reset the applications state.
Using this is very slow, usually quick_cleanup() is sufficient.
"""
print('cleanup')
os.system('pkill -f key-mapper-service')
time.sleep(0.05)
quick_cleanup(log=False)
refresh_devices()
def spy(obj, name):
"""Keep track of arguments and callcount.
Get a list of the call history that keeps getting updated.
"""
original_func = obj.__getattribute__(name)
history = []
def new_func(*args, **kwargs):
history.append((args, kwargs))
original_func(*args, **kwargs)
obj.__setattr__(name, new_func)
return history
def main():
update_verbosity(True)
cleanup()
modules = sys.argv[1:]
# discoverer is really convenient, but it can't find a specific test
# in all of the available tests like unittest.main() does...,
# so provide both options.
if len(modules) > 0:
# for example
# `tests/test.py test_integration.TestIntegration.test_can_start`
# or `tests/test.py test_integration test_daemon`
testsuite = unittest.defaultTestLoader.loadTestsFromNames(
[f'testcases.{module}' for module in modules]
)
else:
# run all tests by default
testsuite = unittest.defaultTestLoader.discover(
'testcases', pattern='*.py'
)
# add a newline to each "qux (foo.bar)..." output before each test,
# because the first log will be on the same line otherwise
original_start_test = unittest.TextTestResult.startTest
def start_test(self, test):
original_start_test(self, test)
print()
unittest.TextTestResult.startTest = start_test
unittest.TextTestRunner(verbosity=2).run(testsuite)
if __name__ == "__main__":
main()