Files
picard/test/test_util_pipe.py

90 lines
3.2 KiB
Python

# -*- coding: utf-8 -*-
#
# Picard, the next-generation MusicBrainz tagger
#
# Copyright (C) 2022 skelly37
#
# This program 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 2
# of the License, or (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
import concurrent.futures
from platform import python_version
from random import randint
from test.picardtestcase import PicardTestCase
from picard.util import pipe
def pipe_listener(pipe_handler):
while True:
for message in pipe_handler.read_from_pipe():
if message != pipe.Pipe.NO_RESPONSE_MESSAGE:
return message
def pipe_writer(pipe_handler, to_send):
if not to_send:
return False
while not pipe_handler.send_to_pipe(to_send):
pass
return True
class TestPipe(PicardTestCase):
# we don't need any strong and secure random numbers, just anything that is different on each run
NAME = str(randint(0, 99999999)) # nosec
VERSION = python_version()
def test_invalid_args(self):
# Pipe should be able to make args iterable (last argument)
self.assertRaises(pipe.PipeErrorInvalidArgs, pipe.Pipe, self.NAME, self.VERSION, 1)
self.assertRaises(pipe.PipeErrorInvalidAppData, pipe.Pipe, 21, self.VERSION, None)
self.assertRaises(pipe.PipeErrorInvalidAppData, pipe.Pipe, self.NAME, 21, None)
def test_pipe_protocol(self):
to_send = (
"it", "tests", "picard", "pipe",
"my_music_file.mp3",
TestPipe.NAME, TestPipe.VERSION,
"last-case",
)
pipe_listener_handler = pipe.Pipe(self.NAME, self.VERSION)
if pipe_listener_handler.path_was_forced:
pipe_writer_handler = pipe.Pipe(self.NAME, self.VERSION, args=None, forced_path=pipe_listener_handler.path)
else:
pipe_writer_handler = pipe.Pipe(self.NAME, self.VERSION)
__pool = concurrent.futures.ThreadPoolExecutor()
for message in to_send:
plistener = __pool.submit(pipe_listener, pipe_listener_handler)
pwriter = __pool.submit(pipe_writer, pipe_writer_handler, message)
res = ""
# handle the write/read processes
try:
res = plistener.result(timeout=6)
except concurrent.futures._base.TimeoutError:
pipe_writer_handler.send_to_pipe(pipe_writer_handler.MESSAGE_TO_IGNORE)
try:
pwriter.result(timeout=0.01)
except concurrent.futures._base.TimeoutError:
pipe_listener_handler.read_from_pipe()
self.assertEqual(res, message,
"Data is sent and read correctly")