mirror of https://github.com/python/cpython.git
1298 lines
46 KiB
Python
1298 lines
46 KiB
Python
"""Tests for unix_events.py."""
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import contextlib
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import errno
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import io
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import multiprocessing
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from multiprocessing.util import _cleanup_tests as multiprocessing_cleanup_tests
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import os
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import signal
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import socket
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import stat
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import sys
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import time
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import unittest
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from unittest import mock
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from test import support
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from test.support import os_helper
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from test.support import socket_helper
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from test.support import wait_process
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from test.support import hashlib_helper
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if sys.platform == 'win32':
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raise unittest.SkipTest('UNIX only')
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import asyncio
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from asyncio import unix_events
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from test.test_asyncio import utils as test_utils
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def tearDownModule():
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asyncio._set_event_loop_policy(None)
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MOCK_ANY = mock.ANY
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def EXITCODE(exitcode):
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return 32768 + exitcode
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def SIGNAL(signum):
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if not 1 <= signum <= 68:
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raise AssertionError(f'invalid signum {signum}')
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return 32768 - signum
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def close_pipe_transport(transport):
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# Don't call transport.close() because the event loop and the selector
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# are mocked
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if transport._pipe is None:
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return
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transport._pipe.close()
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transport._pipe = None
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@unittest.skipUnless(signal, 'Signals are not supported')
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class SelectorEventLoopSignalTests(test_utils.TestCase):
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def setUp(self):
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super().setUp()
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self.loop = asyncio.SelectorEventLoop()
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self.set_event_loop(self.loop)
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def test_check_signal(self):
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self.assertRaises(
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TypeError, self.loop._check_signal, '1')
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self.assertRaises(
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ValueError, self.loop._check_signal, signal.NSIG + 1)
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def test_handle_signal_no_handler(self):
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self.loop._handle_signal(signal.NSIG + 1)
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def test_handle_signal_cancelled_handler(self):
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h = asyncio.Handle(mock.Mock(), (),
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loop=mock.Mock())
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h.cancel()
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self.loop._signal_handlers[signal.NSIG + 1] = h
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self.loop.remove_signal_handler = mock.Mock()
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self.loop._handle_signal(signal.NSIG + 1)
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self.loop.remove_signal_handler.assert_called_with(signal.NSIG + 1)
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@mock.patch('asyncio.unix_events.signal')
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def test_add_signal_handler_setup_error(self, m_signal):
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m_signal.NSIG = signal.NSIG
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m_signal.valid_signals = signal.valid_signals
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m_signal.set_wakeup_fd.side_effect = ValueError
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self.assertRaises(
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RuntimeError,
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self.loop.add_signal_handler,
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signal.SIGINT, lambda: True)
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@mock.patch('asyncio.unix_events.signal')
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def test_add_signal_handler_coroutine_error(self, m_signal):
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m_signal.NSIG = signal.NSIG
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async def simple_coroutine():
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pass
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# callback must not be a coroutine function
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coro_func = simple_coroutine
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coro_obj = coro_func()
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self.addCleanup(coro_obj.close)
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for func in (coro_func, coro_obj):
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self.assertRaisesRegex(
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TypeError, 'coroutines cannot be used with add_signal_handler',
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self.loop.add_signal_handler,
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signal.SIGINT, func)
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@mock.patch('asyncio.unix_events.signal')
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def test_add_signal_handler(self, m_signal):
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m_signal.NSIG = signal.NSIG
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m_signal.valid_signals = signal.valid_signals
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cb = lambda: True
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self.loop.add_signal_handler(signal.SIGHUP, cb)
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h = self.loop._signal_handlers.get(signal.SIGHUP)
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self.assertIsInstance(h, asyncio.Handle)
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self.assertEqual(h._callback, cb)
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@mock.patch('asyncio.unix_events.signal')
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def test_add_signal_handler_install_error(self, m_signal):
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m_signal.NSIG = signal.NSIG
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m_signal.valid_signals = signal.valid_signals
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def set_wakeup_fd(fd):
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if fd == -1:
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raise ValueError()
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m_signal.set_wakeup_fd = set_wakeup_fd
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class Err(OSError):
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errno = errno.EFAULT
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m_signal.signal.side_effect = Err
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self.assertRaises(
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Err,
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self.loop.add_signal_handler,
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signal.SIGINT, lambda: True)
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@mock.patch('asyncio.unix_events.signal')
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@mock.patch('asyncio.base_events.logger')
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def test_add_signal_handler_install_error2(self, m_logging, m_signal):
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m_signal.NSIG = signal.NSIG
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m_signal.valid_signals = signal.valid_signals
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class Err(OSError):
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errno = errno.EINVAL
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m_signal.signal.side_effect = Err
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self.loop._signal_handlers[signal.SIGHUP] = lambda: True
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self.assertRaises(
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RuntimeError,
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self.loop.add_signal_handler,
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signal.SIGINT, lambda: True)
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self.assertFalse(m_logging.info.called)
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self.assertEqual(1, m_signal.set_wakeup_fd.call_count)
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@mock.patch('asyncio.unix_events.signal')
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@mock.patch('asyncio.base_events.logger')
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def test_add_signal_handler_install_error3(self, m_logging, m_signal):
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class Err(OSError):
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errno = errno.EINVAL
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m_signal.signal.side_effect = Err
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m_signal.NSIG = signal.NSIG
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m_signal.valid_signals = signal.valid_signals
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self.assertRaises(
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RuntimeError,
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self.loop.add_signal_handler,
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signal.SIGINT, lambda: True)
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self.assertFalse(m_logging.info.called)
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self.assertEqual(2, m_signal.set_wakeup_fd.call_count)
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@mock.patch('asyncio.unix_events.signal')
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def test_remove_signal_handler(self, m_signal):
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m_signal.NSIG = signal.NSIG
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m_signal.valid_signals = signal.valid_signals
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self.loop.add_signal_handler(signal.SIGHUP, lambda: True)
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self.assertTrue(
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self.loop.remove_signal_handler(signal.SIGHUP))
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self.assertTrue(m_signal.set_wakeup_fd.called)
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self.assertTrue(m_signal.signal.called)
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self.assertEqual(
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(signal.SIGHUP, m_signal.SIG_DFL), m_signal.signal.call_args[0])
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@mock.patch('asyncio.unix_events.signal')
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def test_remove_signal_handler_2(self, m_signal):
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m_signal.NSIG = signal.NSIG
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m_signal.SIGINT = signal.SIGINT
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m_signal.valid_signals = signal.valid_signals
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self.loop.add_signal_handler(signal.SIGINT, lambda: True)
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self.loop._signal_handlers[signal.SIGHUP] = object()
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m_signal.set_wakeup_fd.reset_mock()
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self.assertTrue(
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self.loop.remove_signal_handler(signal.SIGINT))
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self.assertFalse(m_signal.set_wakeup_fd.called)
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self.assertTrue(m_signal.signal.called)
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self.assertEqual(
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(signal.SIGINT, m_signal.default_int_handler),
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m_signal.signal.call_args[0])
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@mock.patch('asyncio.unix_events.signal')
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@mock.patch('asyncio.base_events.logger')
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def test_remove_signal_handler_cleanup_error(self, m_logging, m_signal):
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m_signal.NSIG = signal.NSIG
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m_signal.valid_signals = signal.valid_signals
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self.loop.add_signal_handler(signal.SIGHUP, lambda: True)
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m_signal.set_wakeup_fd.side_effect = ValueError
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self.loop.remove_signal_handler(signal.SIGHUP)
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self.assertTrue(m_logging.info)
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@mock.patch('asyncio.unix_events.signal')
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def test_remove_signal_handler_error(self, m_signal):
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m_signal.NSIG = signal.NSIG
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m_signal.valid_signals = signal.valid_signals
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self.loop.add_signal_handler(signal.SIGHUP, lambda: True)
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m_signal.signal.side_effect = OSError
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self.assertRaises(
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OSError, self.loop.remove_signal_handler, signal.SIGHUP)
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@mock.patch('asyncio.unix_events.signal')
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def test_remove_signal_handler_error2(self, m_signal):
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m_signal.NSIG = signal.NSIG
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m_signal.valid_signals = signal.valid_signals
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self.loop.add_signal_handler(signal.SIGHUP, lambda: True)
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class Err(OSError):
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errno = errno.EINVAL
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m_signal.signal.side_effect = Err
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self.assertRaises(
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RuntimeError, self.loop.remove_signal_handler, signal.SIGHUP)
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@mock.patch('asyncio.unix_events.signal')
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def test_close(self, m_signal):
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m_signal.NSIG = signal.NSIG
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m_signal.valid_signals = signal.valid_signals
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self.loop.add_signal_handler(signal.SIGHUP, lambda: True)
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self.loop.add_signal_handler(signal.SIGCHLD, lambda: True)
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self.assertEqual(len(self.loop._signal_handlers), 2)
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m_signal.set_wakeup_fd.reset_mock()
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self.loop.close()
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self.assertEqual(len(self.loop._signal_handlers), 0)
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m_signal.set_wakeup_fd.assert_called_once_with(-1)
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@mock.patch('asyncio.unix_events.sys')
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@mock.patch('asyncio.unix_events.signal')
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def test_close_on_finalizing(self, m_signal, m_sys):
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m_signal.NSIG = signal.NSIG
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m_signal.valid_signals = signal.valid_signals
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self.loop.add_signal_handler(signal.SIGHUP, lambda: True)
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self.assertEqual(len(self.loop._signal_handlers), 1)
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m_sys.is_finalizing.return_value = True
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m_signal.signal.reset_mock()
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with self.assertWarnsRegex(ResourceWarning,
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"skipping signal handlers removal"):
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self.loop.close()
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self.assertEqual(len(self.loop._signal_handlers), 0)
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self.assertFalse(m_signal.signal.called)
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@unittest.skipUnless(hasattr(socket, 'AF_UNIX'),
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'UNIX Sockets are not supported')
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class SelectorEventLoopUnixSocketTests(test_utils.TestCase):
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def setUp(self):
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super().setUp()
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self.loop = asyncio.SelectorEventLoop()
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self.set_event_loop(self.loop)
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@socket_helper.skip_unless_bind_unix_socket
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def test_create_unix_server_existing_path_sock(self):
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with test_utils.unix_socket_path() as path:
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sock = socket.socket(socket.AF_UNIX)
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sock.bind(path)
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sock.listen(1)
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sock.close()
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coro = self.loop.create_unix_server(lambda: None, path)
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srv = self.loop.run_until_complete(coro)
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srv.close()
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self.loop.run_until_complete(srv.wait_closed())
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@socket_helper.skip_unless_bind_unix_socket
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def test_create_unix_server_pathlike(self):
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with test_utils.unix_socket_path() as path:
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path = os_helper.FakePath(path)
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srv_coro = self.loop.create_unix_server(lambda: None, path)
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srv = self.loop.run_until_complete(srv_coro)
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srv.close()
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self.loop.run_until_complete(srv.wait_closed())
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def test_create_unix_connection_pathlike(self):
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with test_utils.unix_socket_path() as path:
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path = os_helper.FakePath(path)
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coro = self.loop.create_unix_connection(lambda: None, path)
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with self.assertRaises(FileNotFoundError):
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# If path-like object weren't supported, the exception would be
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# different.
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self.loop.run_until_complete(coro)
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def test_create_unix_server_existing_path_nonsock(self):
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path = test_utils.gen_unix_socket_path()
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self.addCleanup(os_helper.unlink, path)
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# create the file
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open(path, "wb").close()
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coro = self.loop.create_unix_server(lambda: None, path)
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with self.assertRaisesRegex(OSError,
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'Address.*is already in use'):
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self.loop.run_until_complete(coro)
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def test_create_unix_server_ssl_bool(self):
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coro = self.loop.create_unix_server(lambda: None, path='spam',
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ssl=True)
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with self.assertRaisesRegex(TypeError,
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'ssl argument must be an SSLContext'):
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self.loop.run_until_complete(coro)
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def test_create_unix_server_nopath_nosock(self):
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coro = self.loop.create_unix_server(lambda: None, path=None)
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with self.assertRaisesRegex(ValueError,
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'path was not specified, and no sock'):
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self.loop.run_until_complete(coro)
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def test_create_unix_server_path_inetsock(self):
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sock = socket.socket()
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with sock:
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coro = self.loop.create_unix_server(lambda: None, path=None,
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sock=sock)
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with self.assertRaisesRegex(ValueError,
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'A UNIX Domain Stream.*was expected'):
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self.loop.run_until_complete(coro)
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def test_create_unix_server_path_dgram(self):
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sock = socket.socket(socket.AF_UNIX, socket.SOCK_DGRAM)
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with sock:
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coro = self.loop.create_unix_server(lambda: None, path=None,
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sock=sock)
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with self.assertRaisesRegex(ValueError,
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'A UNIX Domain Stream.*was expected'):
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self.loop.run_until_complete(coro)
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@unittest.skipUnless(hasattr(socket, 'SOCK_NONBLOCK'),
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'no socket.SOCK_NONBLOCK (linux only)')
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@socket_helper.skip_unless_bind_unix_socket
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def test_create_unix_server_path_stream_bittype(self):
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fn = test_utils.gen_unix_socket_path()
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self.addCleanup(os_helper.unlink, fn)
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sock = socket.socket(socket.AF_UNIX,
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socket.SOCK_STREAM | socket.SOCK_NONBLOCK)
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with sock:
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sock.bind(fn)
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coro = self.loop.create_unix_server(lambda: None, path=None,
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sock=sock)
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srv = self.loop.run_until_complete(coro)
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srv.close()
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self.loop.run_until_complete(srv.wait_closed())
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def test_create_unix_server_ssl_timeout_with_plain_sock(self):
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coro = self.loop.create_unix_server(lambda: None, path='spam',
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ssl_handshake_timeout=1)
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with self.assertRaisesRegex(
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ValueError,
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'ssl_handshake_timeout is only meaningful with ssl'):
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self.loop.run_until_complete(coro)
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def test_create_unix_connection_path_inetsock(self):
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sock = socket.socket()
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with sock:
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coro = self.loop.create_unix_connection(lambda: None,
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sock=sock)
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with self.assertRaisesRegex(ValueError,
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'A UNIX Domain Stream.*was expected'):
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self.loop.run_until_complete(coro)
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@mock.patch('asyncio.unix_events.socket')
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def test_create_unix_server_bind_error(self, m_socket):
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# Ensure that the socket is closed on any bind error
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sock = mock.Mock()
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m_socket.socket.return_value = sock
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sock.bind.side_effect = OSError
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coro = self.loop.create_unix_server(lambda: None, path="/test")
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with self.assertRaises(OSError):
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self.loop.run_until_complete(coro)
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self.assertTrue(sock.close.called)
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sock.bind.side_effect = MemoryError
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coro = self.loop.create_unix_server(lambda: None, path="/test")
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with self.assertRaises(MemoryError):
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self.loop.run_until_complete(coro)
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self.assertTrue(sock.close.called)
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def test_create_unix_connection_path_sock(self):
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coro = self.loop.create_unix_connection(
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lambda: None, os.devnull, sock=object())
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with self.assertRaisesRegex(ValueError, 'path and sock can not be'):
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self.loop.run_until_complete(coro)
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def test_create_unix_connection_nopath_nosock(self):
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coro = self.loop.create_unix_connection(
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lambda: None, None)
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with self.assertRaisesRegex(ValueError,
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'no path and sock were specified'):
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self.loop.run_until_complete(coro)
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def test_create_unix_connection_nossl_serverhost(self):
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coro = self.loop.create_unix_connection(
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lambda: None, os.devnull, server_hostname='spam')
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with self.assertRaisesRegex(ValueError,
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'server_hostname is only meaningful'):
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self.loop.run_until_complete(coro)
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def test_create_unix_connection_ssl_noserverhost(self):
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coro = self.loop.create_unix_connection(
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lambda: None, os.devnull, ssl=True)
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with self.assertRaisesRegex(
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ValueError, 'you have to pass server_hostname when using ssl'):
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self.loop.run_until_complete(coro)
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def test_create_unix_connection_ssl_timeout_with_plain_sock(self):
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coro = self.loop.create_unix_connection(lambda: None, path='spam',
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ssl_handshake_timeout=1)
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with self.assertRaisesRegex(
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ValueError,
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'ssl_handshake_timeout is only meaningful with ssl'):
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self.loop.run_until_complete(coro)
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@unittest.skipUnless(hasattr(os, 'sendfile'),
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'sendfile is not supported')
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class SelectorEventLoopUnixSockSendfileTests(test_utils.TestCase):
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DATA = b"12345abcde" * 16 * 1024 # 160 KiB
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class MyProto(asyncio.Protocol):
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def __init__(self, loop):
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self.started = False
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self.closed = False
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self.data = bytearray()
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self.fut = loop.create_future()
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self.transport = None
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self._ready = loop.create_future()
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def connection_made(self, transport):
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self.started = True
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self.transport = transport
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self._ready.set_result(None)
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def data_received(self, data):
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self.data.extend(data)
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|
def connection_lost(self, exc):
|
|
self.closed = True
|
|
self.fut.set_result(None)
|
|
|
|
async def wait_closed(self):
|
|
await self.fut
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
with open(os_helper.TESTFN, 'wb') as fp:
|
|
fp.write(cls.DATA)
|
|
super().setUpClass()
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
os_helper.unlink(os_helper.TESTFN)
|
|
super().tearDownClass()
|
|
|
|
def setUp(self):
|
|
self.loop = asyncio.new_event_loop()
|
|
self.set_event_loop(self.loop)
|
|
self.file = open(os_helper.TESTFN, 'rb')
|
|
self.addCleanup(self.file.close)
|
|
super().setUp()
|
|
|
|
def make_socket(self, cleanup=True):
|
|
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
sock.setblocking(False)
|
|
sock.setsockopt(socket.SOL_SOCKET, socket.SO_SNDBUF, 1024)
|
|
sock.setsockopt(socket.SOL_SOCKET, socket.SO_RCVBUF, 1024)
|
|
if cleanup:
|
|
self.addCleanup(sock.close)
|
|
return sock
|
|
|
|
def run_loop(self, coro):
|
|
return self.loop.run_until_complete(coro)
|
|
|
|
def prepare(self):
|
|
sock = self.make_socket()
|
|
proto = self.MyProto(self.loop)
|
|
port = socket_helper.find_unused_port()
|
|
srv_sock = self.make_socket(cleanup=False)
|
|
srv_sock.bind((socket_helper.HOST, port))
|
|
server = self.run_loop(self.loop.create_server(
|
|
lambda: proto, sock=srv_sock))
|
|
self.run_loop(self.loop.sock_connect(sock, (socket_helper.HOST, port)))
|
|
self.run_loop(proto._ready)
|
|
|
|
def cleanup():
|
|
proto.transport.close()
|
|
self.run_loop(proto.wait_closed())
|
|
|
|
server.close()
|
|
self.run_loop(server.wait_closed())
|
|
|
|
self.addCleanup(cleanup)
|
|
|
|
return sock, proto
|
|
|
|
def test_sock_sendfile_not_available(self):
|
|
sock, proto = self.prepare()
|
|
with mock.patch('asyncio.unix_events.os', spec=[]):
|
|
with self.assertRaisesRegex(asyncio.SendfileNotAvailableError,
|
|
"os[.]sendfile[(][)] is not available"):
|
|
self.run_loop(self.loop._sock_sendfile_native(sock, self.file,
|
|
0, None))
|
|
self.assertEqual(self.file.tell(), 0)
|
|
|
|
def test_sock_sendfile_not_a_file(self):
|
|
sock, proto = self.prepare()
|
|
f = object()
|
|
with self.assertRaisesRegex(asyncio.SendfileNotAvailableError,
|
|
"not a regular file"):
|
|
self.run_loop(self.loop._sock_sendfile_native(sock, f,
|
|
0, None))
|
|
self.assertEqual(self.file.tell(), 0)
|
|
|
|
def test_sock_sendfile_iobuffer(self):
|
|
sock, proto = self.prepare()
|
|
f = io.BytesIO()
|
|
with self.assertRaisesRegex(asyncio.SendfileNotAvailableError,
|
|
"not a regular file"):
|
|
self.run_loop(self.loop._sock_sendfile_native(sock, f,
|
|
0, None))
|
|
self.assertEqual(self.file.tell(), 0)
|
|
|
|
def test_sock_sendfile_not_regular_file(self):
|
|
sock, proto = self.prepare()
|
|
f = mock.Mock()
|
|
f.fileno.return_value = -1
|
|
with self.assertRaisesRegex(asyncio.SendfileNotAvailableError,
|
|
"not a regular file"):
|
|
self.run_loop(self.loop._sock_sendfile_native(sock, f,
|
|
0, None))
|
|
self.assertEqual(self.file.tell(), 0)
|
|
|
|
def test_sock_sendfile_cancel1(self):
|
|
sock, proto = self.prepare()
|
|
|
|
fut = self.loop.create_future()
|
|
fileno = self.file.fileno()
|
|
self.loop._sock_sendfile_native_impl(fut, None, sock, fileno,
|
|
0, None, len(self.DATA), 0)
|
|
fut.cancel()
|
|
with contextlib.suppress(asyncio.CancelledError):
|
|
self.run_loop(fut)
|
|
with self.assertRaises(KeyError):
|
|
self.loop._selector.get_key(sock)
|
|
|
|
def test_sock_sendfile_cancel2(self):
|
|
sock, proto = self.prepare()
|
|
|
|
fut = self.loop.create_future()
|
|
fileno = self.file.fileno()
|
|
self.loop._sock_sendfile_native_impl(fut, None, sock, fileno,
|
|
0, None, len(self.DATA), 0)
|
|
fut.cancel()
|
|
self.loop._sock_sendfile_native_impl(fut, sock.fileno(), sock, fileno,
|
|
0, None, len(self.DATA), 0)
|
|
with self.assertRaises(KeyError):
|
|
self.loop._selector.get_key(sock)
|
|
|
|
def test_sock_sendfile_blocking_error(self):
|
|
sock, proto = self.prepare()
|
|
|
|
fileno = self.file.fileno()
|
|
fut = mock.Mock()
|
|
fut.cancelled.return_value = False
|
|
with mock.patch('os.sendfile', side_effect=BlockingIOError()):
|
|
self.loop._sock_sendfile_native_impl(fut, None, sock, fileno,
|
|
0, None, len(self.DATA), 0)
|
|
key = self.loop._selector.get_key(sock)
|
|
self.assertIsNotNone(key)
|
|
fut.add_done_callback.assert_called_once_with(mock.ANY)
|
|
|
|
def test_sock_sendfile_os_error_first_call(self):
|
|
sock, proto = self.prepare()
|
|
|
|
fileno = self.file.fileno()
|
|
fut = self.loop.create_future()
|
|
with mock.patch('os.sendfile', side_effect=OSError()):
|
|
self.loop._sock_sendfile_native_impl(fut, None, sock, fileno,
|
|
0, None, len(self.DATA), 0)
|
|
with self.assertRaises(KeyError):
|
|
self.loop._selector.get_key(sock)
|
|
exc = fut.exception()
|
|
self.assertIsInstance(exc, asyncio.SendfileNotAvailableError)
|
|
self.assertEqual(0, self.file.tell())
|
|
|
|
def test_sock_sendfile_os_error_next_call(self):
|
|
sock, proto = self.prepare()
|
|
|
|
fileno = self.file.fileno()
|
|
fut = self.loop.create_future()
|
|
err = OSError()
|
|
with mock.patch('os.sendfile', side_effect=err):
|
|
self.loop._sock_sendfile_native_impl(fut, sock.fileno(),
|
|
sock, fileno,
|
|
1000, None, len(self.DATA),
|
|
1000)
|
|
with self.assertRaises(KeyError):
|
|
self.loop._selector.get_key(sock)
|
|
exc = fut.exception()
|
|
self.assertIs(exc, err)
|
|
self.assertEqual(1000, self.file.tell())
|
|
|
|
def test_sock_sendfile_exception(self):
|
|
sock, proto = self.prepare()
|
|
|
|
fileno = self.file.fileno()
|
|
fut = self.loop.create_future()
|
|
err = asyncio.SendfileNotAvailableError()
|
|
with mock.patch('os.sendfile', side_effect=err):
|
|
self.loop._sock_sendfile_native_impl(fut, sock.fileno(),
|
|
sock, fileno,
|
|
1000, None, len(self.DATA),
|
|
1000)
|
|
with self.assertRaises(KeyError):
|
|
self.loop._selector.get_key(sock)
|
|
exc = fut.exception()
|
|
self.assertIs(exc, err)
|
|
self.assertEqual(1000, self.file.tell())
|
|
|
|
|
|
class UnixReadPipeTransportTests(test_utils.TestCase):
|
|
|
|
def setUp(self):
|
|
super().setUp()
|
|
self.loop = self.new_test_loop()
|
|
self.protocol = test_utils.make_test_protocol(asyncio.Protocol)
|
|
self.pipe = mock.Mock(spec_set=io.RawIOBase)
|
|
self.pipe.fileno.return_value = 5
|
|
|
|
blocking_patcher = mock.patch('os.set_blocking')
|
|
blocking_patcher.start()
|
|
self.addCleanup(blocking_patcher.stop)
|
|
|
|
fstat_patcher = mock.patch('os.fstat')
|
|
m_fstat = fstat_patcher.start()
|
|
st = mock.Mock()
|
|
st.st_mode = stat.S_IFIFO
|
|
m_fstat.return_value = st
|
|
self.addCleanup(fstat_patcher.stop)
|
|
|
|
def read_pipe_transport(self, waiter=None):
|
|
transport = unix_events._UnixReadPipeTransport(self.loop, self.pipe,
|
|
self.protocol,
|
|
waiter=waiter)
|
|
self.addCleanup(close_pipe_transport, transport)
|
|
return transport
|
|
|
|
def test_ctor(self):
|
|
waiter = self.loop.create_future()
|
|
tr = self.read_pipe_transport(waiter=waiter)
|
|
self.loop.run_until_complete(waiter)
|
|
|
|
self.protocol.connection_made.assert_called_with(tr)
|
|
self.loop.assert_reader(5, tr._read_ready)
|
|
self.assertIsNone(waiter.result())
|
|
|
|
@mock.patch('os.read')
|
|
def test__read_ready(self, m_read):
|
|
tr = self.read_pipe_transport()
|
|
m_read.return_value = b'data'
|
|
tr._read_ready()
|
|
|
|
m_read.assert_called_with(5, tr.max_size)
|
|
self.protocol.data_received.assert_called_with(b'data')
|
|
|
|
@mock.patch('os.read')
|
|
def test__read_ready_eof(self, m_read):
|
|
tr = self.read_pipe_transport()
|
|
m_read.return_value = b''
|
|
tr._read_ready()
|
|
|
|
m_read.assert_called_with(5, tr.max_size)
|
|
self.assertFalse(self.loop.readers)
|
|
test_utils.run_briefly(self.loop)
|
|
self.protocol.eof_received.assert_called_with()
|
|
self.protocol.connection_lost.assert_called_with(None)
|
|
|
|
@mock.patch('os.read')
|
|
def test__read_ready_blocked(self, m_read):
|
|
tr = self.read_pipe_transport()
|
|
m_read.side_effect = BlockingIOError
|
|
tr._read_ready()
|
|
|
|
m_read.assert_called_with(5, tr.max_size)
|
|
test_utils.run_briefly(self.loop)
|
|
self.assertFalse(self.protocol.data_received.called)
|
|
|
|
@mock.patch('asyncio.log.logger.error')
|
|
@mock.patch('os.read')
|
|
def test__read_ready_error(self, m_read, m_logexc):
|
|
tr = self.read_pipe_transport()
|
|
err = OSError()
|
|
m_read.side_effect = err
|
|
tr._close = mock.Mock()
|
|
tr._read_ready()
|
|
|
|
m_read.assert_called_with(5, tr.max_size)
|
|
tr._close.assert_called_with(err)
|
|
m_logexc.assert_called_with(
|
|
test_utils.MockPattern(
|
|
'Fatal read error on pipe transport'
|
|
'\nprotocol:.*\ntransport:.*'),
|
|
exc_info=(OSError, MOCK_ANY, MOCK_ANY))
|
|
|
|
@mock.patch('os.read')
|
|
def test_pause_reading(self, m_read):
|
|
tr = self.read_pipe_transport()
|
|
m = mock.Mock()
|
|
self.loop.add_reader(5, m)
|
|
tr.pause_reading()
|
|
self.assertFalse(self.loop.readers)
|
|
|
|
@mock.patch('os.read')
|
|
def test_resume_reading(self, m_read):
|
|
tr = self.read_pipe_transport()
|
|
tr.pause_reading()
|
|
tr.resume_reading()
|
|
self.loop.assert_reader(5, tr._read_ready)
|
|
|
|
@mock.patch('os.read')
|
|
def test_close(self, m_read):
|
|
tr = self.read_pipe_transport()
|
|
tr._close = mock.Mock()
|
|
tr.close()
|
|
tr._close.assert_called_with(None)
|
|
|
|
@mock.patch('os.read')
|
|
def test_close_already_closing(self, m_read):
|
|
tr = self.read_pipe_transport()
|
|
tr._closing = True
|
|
tr._close = mock.Mock()
|
|
tr.close()
|
|
self.assertFalse(tr._close.called)
|
|
|
|
@mock.patch('os.read')
|
|
def test__close(self, m_read):
|
|
tr = self.read_pipe_transport()
|
|
err = object()
|
|
tr._close(err)
|
|
self.assertTrue(tr.is_closing())
|
|
self.assertFalse(self.loop.readers)
|
|
test_utils.run_briefly(self.loop)
|
|
self.protocol.connection_lost.assert_called_with(err)
|
|
|
|
def test__call_connection_lost(self):
|
|
tr = self.read_pipe_transport()
|
|
self.assertIsNotNone(tr._protocol)
|
|
self.assertIsNotNone(tr._loop)
|
|
|
|
err = None
|
|
tr._call_connection_lost(err)
|
|
self.protocol.connection_lost.assert_called_with(err)
|
|
self.pipe.close.assert_called_with()
|
|
|
|
self.assertIsNone(tr._protocol)
|
|
self.assertIsNone(tr._loop)
|
|
|
|
def test__call_connection_lost_with_err(self):
|
|
tr = self.read_pipe_transport()
|
|
self.assertIsNotNone(tr._protocol)
|
|
self.assertIsNotNone(tr._loop)
|
|
|
|
err = OSError()
|
|
tr._call_connection_lost(err)
|
|
self.protocol.connection_lost.assert_called_with(err)
|
|
self.pipe.close.assert_called_with()
|
|
|
|
self.assertIsNone(tr._protocol)
|
|
self.assertIsNone(tr._loop)
|
|
|
|
def test_pause_reading_on_closed_pipe(self):
|
|
tr = self.read_pipe_transport()
|
|
tr.close()
|
|
test_utils.run_briefly(self.loop)
|
|
self.assertIsNone(tr._loop)
|
|
tr.pause_reading()
|
|
|
|
def test_pause_reading_on_paused_pipe(self):
|
|
tr = self.read_pipe_transport()
|
|
tr.pause_reading()
|
|
# the second call should do nothing
|
|
tr.pause_reading()
|
|
|
|
def test_resume_reading_on_closed_pipe(self):
|
|
tr = self.read_pipe_transport()
|
|
tr.close()
|
|
test_utils.run_briefly(self.loop)
|
|
self.assertIsNone(tr._loop)
|
|
tr.resume_reading()
|
|
|
|
def test_resume_reading_on_paused_pipe(self):
|
|
tr = self.read_pipe_transport()
|
|
# the pipe is not paused
|
|
# resuming should do nothing
|
|
tr.resume_reading()
|
|
|
|
|
|
class UnixWritePipeTransportTests(test_utils.TestCase):
|
|
|
|
def setUp(self):
|
|
super().setUp()
|
|
self.loop = self.new_test_loop()
|
|
self.protocol = test_utils.make_test_protocol(asyncio.BaseProtocol)
|
|
self.pipe = mock.Mock(spec_set=io.RawIOBase)
|
|
self.pipe.fileno.return_value = 5
|
|
|
|
blocking_patcher = mock.patch('os.set_blocking')
|
|
blocking_patcher.start()
|
|
self.addCleanup(blocking_patcher.stop)
|
|
|
|
fstat_patcher = mock.patch('os.fstat')
|
|
m_fstat = fstat_patcher.start()
|
|
st = mock.Mock()
|
|
st.st_mode = stat.S_IFSOCK
|
|
m_fstat.return_value = st
|
|
self.addCleanup(fstat_patcher.stop)
|
|
|
|
def write_pipe_transport(self, waiter=None):
|
|
transport = unix_events._UnixWritePipeTransport(self.loop, self.pipe,
|
|
self.protocol,
|
|
waiter=waiter)
|
|
self.addCleanup(close_pipe_transport, transport)
|
|
return transport
|
|
|
|
def test_ctor(self):
|
|
waiter = self.loop.create_future()
|
|
tr = self.write_pipe_transport(waiter=waiter)
|
|
self.loop.run_until_complete(waiter)
|
|
|
|
self.protocol.connection_made.assert_called_with(tr)
|
|
self.loop.assert_reader(5, tr._read_ready)
|
|
self.assertEqual(None, waiter.result())
|
|
|
|
def test_can_write_eof(self):
|
|
tr = self.write_pipe_transport()
|
|
self.assertTrue(tr.can_write_eof())
|
|
|
|
@mock.patch('os.write')
|
|
def test_write(self, m_write):
|
|
tr = self.write_pipe_transport()
|
|
m_write.return_value = 4
|
|
tr.write(b'data')
|
|
m_write.assert_called_with(5, b'data')
|
|
self.assertFalse(self.loop.writers)
|
|
self.assertEqual(bytearray(), tr._buffer)
|
|
|
|
@mock.patch('os.write')
|
|
def test_write_no_data(self, m_write):
|
|
tr = self.write_pipe_transport()
|
|
tr.write(b'')
|
|
self.assertFalse(m_write.called)
|
|
self.assertFalse(self.loop.writers)
|
|
self.assertEqual(bytearray(b''), tr._buffer)
|
|
|
|
@mock.patch('os.write')
|
|
def test_write_partial(self, m_write):
|
|
tr = self.write_pipe_transport()
|
|
m_write.return_value = 2
|
|
tr.write(b'data')
|
|
self.loop.assert_writer(5, tr._write_ready)
|
|
self.assertEqual(bytearray(b'ta'), tr._buffer)
|
|
|
|
@mock.patch('os.write')
|
|
def test_write_buffer(self, m_write):
|
|
tr = self.write_pipe_transport()
|
|
self.loop.add_writer(5, tr._write_ready)
|
|
tr._buffer = bytearray(b'previous')
|
|
tr.write(b'data')
|
|
self.assertFalse(m_write.called)
|
|
self.loop.assert_writer(5, tr._write_ready)
|
|
self.assertEqual(bytearray(b'previousdata'), tr._buffer)
|
|
|
|
@mock.patch('os.write')
|
|
def test_write_again(self, m_write):
|
|
tr = self.write_pipe_transport()
|
|
m_write.side_effect = BlockingIOError()
|
|
tr.write(b'data')
|
|
m_write.assert_called_with(5, bytearray(b'data'))
|
|
self.loop.assert_writer(5, tr._write_ready)
|
|
self.assertEqual(bytearray(b'data'), tr._buffer)
|
|
|
|
@mock.patch('asyncio.unix_events.logger')
|
|
@mock.patch('os.write')
|
|
def test_write_err(self, m_write, m_log):
|
|
tr = self.write_pipe_transport()
|
|
err = OSError()
|
|
m_write.side_effect = err
|
|
tr._fatal_error = mock.Mock()
|
|
tr.write(b'data')
|
|
m_write.assert_called_with(5, b'data')
|
|
self.assertFalse(self.loop.writers)
|
|
self.assertEqual(bytearray(), tr._buffer)
|
|
tr._fatal_error.assert_called_with(
|
|
err,
|
|
'Fatal write error on pipe transport')
|
|
self.assertEqual(1, tr._conn_lost)
|
|
|
|
tr.write(b'data')
|
|
self.assertEqual(2, tr._conn_lost)
|
|
tr.write(b'data')
|
|
tr.write(b'data')
|
|
tr.write(b'data')
|
|
tr.write(b'data')
|
|
# This is a bit overspecified. :-(
|
|
m_log.warning.assert_called_with(
|
|
'pipe closed by peer or os.write(pipe, data) raised exception.')
|
|
tr.close()
|
|
|
|
@mock.patch('os.write')
|
|
def test_write_close(self, m_write):
|
|
tr = self.write_pipe_transport()
|
|
tr._read_ready() # pipe was closed by peer
|
|
|
|
tr.write(b'data')
|
|
self.assertEqual(tr._conn_lost, 1)
|
|
tr.write(b'data')
|
|
self.assertEqual(tr._conn_lost, 2)
|
|
|
|
def test__read_ready(self):
|
|
tr = self.write_pipe_transport()
|
|
tr._read_ready()
|
|
self.assertFalse(self.loop.readers)
|
|
self.assertFalse(self.loop.writers)
|
|
self.assertTrue(tr.is_closing())
|
|
test_utils.run_briefly(self.loop)
|
|
self.protocol.connection_lost.assert_called_with(None)
|
|
|
|
@mock.patch('os.write')
|
|
def test__write_ready(self, m_write):
|
|
tr = self.write_pipe_transport()
|
|
self.loop.add_writer(5, tr._write_ready)
|
|
tr._buffer = bytearray(b'data')
|
|
m_write.return_value = 4
|
|
tr._write_ready()
|
|
self.assertFalse(self.loop.writers)
|
|
self.assertEqual(bytearray(), tr._buffer)
|
|
|
|
@mock.patch('os.write')
|
|
def test__write_ready_partial(self, m_write):
|
|
tr = self.write_pipe_transport()
|
|
self.loop.add_writer(5, tr._write_ready)
|
|
tr._buffer = bytearray(b'data')
|
|
m_write.return_value = 3
|
|
tr._write_ready()
|
|
self.loop.assert_writer(5, tr._write_ready)
|
|
self.assertEqual(bytearray(b'a'), tr._buffer)
|
|
|
|
@mock.patch('os.write')
|
|
def test__write_ready_again(self, m_write):
|
|
tr = self.write_pipe_transport()
|
|
self.loop.add_writer(5, tr._write_ready)
|
|
tr._buffer = bytearray(b'data')
|
|
m_write.side_effect = BlockingIOError()
|
|
tr._write_ready()
|
|
m_write.assert_called_with(5, bytearray(b'data'))
|
|
self.loop.assert_writer(5, tr._write_ready)
|
|
self.assertEqual(bytearray(b'data'), tr._buffer)
|
|
|
|
@mock.patch('os.write')
|
|
def test__write_ready_empty(self, m_write):
|
|
tr = self.write_pipe_transport()
|
|
self.loop.add_writer(5, tr._write_ready)
|
|
tr._buffer = bytearray(b'data')
|
|
m_write.return_value = 0
|
|
tr._write_ready()
|
|
m_write.assert_called_with(5, bytearray(b'data'))
|
|
self.loop.assert_writer(5, tr._write_ready)
|
|
self.assertEqual(bytearray(b'data'), tr._buffer)
|
|
|
|
@mock.patch('asyncio.log.logger.error')
|
|
@mock.patch('os.write')
|
|
def test__write_ready_err(self, m_write, m_logexc):
|
|
tr = self.write_pipe_transport()
|
|
self.loop.add_writer(5, tr._write_ready)
|
|
tr._buffer = bytearray(b'data')
|
|
m_write.side_effect = err = OSError()
|
|
tr._write_ready()
|
|
self.assertFalse(self.loop.writers)
|
|
self.assertFalse(self.loop.readers)
|
|
self.assertEqual(bytearray(), tr._buffer)
|
|
self.assertTrue(tr.is_closing())
|
|
m_logexc.assert_not_called()
|
|
self.assertEqual(1, tr._conn_lost)
|
|
test_utils.run_briefly(self.loop)
|
|
self.protocol.connection_lost.assert_called_with(err)
|
|
|
|
@mock.patch('os.write')
|
|
def test__write_ready_closing(self, m_write):
|
|
tr = self.write_pipe_transport()
|
|
self.loop.add_writer(5, tr._write_ready)
|
|
tr._closing = True
|
|
tr._buffer = bytearray(b'data')
|
|
m_write.return_value = 4
|
|
tr._write_ready()
|
|
self.assertFalse(self.loop.writers)
|
|
self.assertFalse(self.loop.readers)
|
|
self.assertEqual(bytearray(), tr._buffer)
|
|
self.protocol.connection_lost.assert_called_with(None)
|
|
self.pipe.close.assert_called_with()
|
|
|
|
@mock.patch('os.write')
|
|
def test_abort(self, m_write):
|
|
tr = self.write_pipe_transport()
|
|
self.loop.add_writer(5, tr._write_ready)
|
|
self.loop.add_reader(5, tr._read_ready)
|
|
tr._buffer = [b'da', b'ta']
|
|
tr.abort()
|
|
self.assertFalse(m_write.called)
|
|
self.assertFalse(self.loop.readers)
|
|
self.assertFalse(self.loop.writers)
|
|
self.assertEqual([], tr._buffer)
|
|
self.assertTrue(tr.is_closing())
|
|
test_utils.run_briefly(self.loop)
|
|
self.protocol.connection_lost.assert_called_with(None)
|
|
|
|
def test__call_connection_lost(self):
|
|
tr = self.write_pipe_transport()
|
|
self.assertIsNotNone(tr._protocol)
|
|
self.assertIsNotNone(tr._loop)
|
|
|
|
err = None
|
|
tr._call_connection_lost(err)
|
|
self.protocol.connection_lost.assert_called_with(err)
|
|
self.pipe.close.assert_called_with()
|
|
|
|
self.assertIsNone(tr._protocol)
|
|
self.assertIsNone(tr._loop)
|
|
|
|
def test__call_connection_lost_with_err(self):
|
|
tr = self.write_pipe_transport()
|
|
self.assertIsNotNone(tr._protocol)
|
|
self.assertIsNotNone(tr._loop)
|
|
|
|
err = OSError()
|
|
tr._call_connection_lost(err)
|
|
self.protocol.connection_lost.assert_called_with(err)
|
|
self.pipe.close.assert_called_with()
|
|
|
|
self.assertIsNone(tr._protocol)
|
|
self.assertIsNone(tr._loop)
|
|
|
|
def test_close(self):
|
|
tr = self.write_pipe_transport()
|
|
tr.write_eof = mock.Mock()
|
|
tr.close()
|
|
tr.write_eof.assert_called_with()
|
|
|
|
# closing the transport twice must not fail
|
|
tr.close()
|
|
|
|
def test_close_closing(self):
|
|
tr = self.write_pipe_transport()
|
|
tr.write_eof = mock.Mock()
|
|
tr._closing = True
|
|
tr.close()
|
|
self.assertFalse(tr.write_eof.called)
|
|
|
|
def test_write_eof(self):
|
|
tr = self.write_pipe_transport()
|
|
tr.write_eof()
|
|
self.assertTrue(tr.is_closing())
|
|
self.assertFalse(self.loop.readers)
|
|
test_utils.run_briefly(self.loop)
|
|
self.protocol.connection_lost.assert_called_with(None)
|
|
|
|
def test_write_eof_pending(self):
|
|
tr = self.write_pipe_transport()
|
|
tr._buffer = [b'data']
|
|
tr.write_eof()
|
|
self.assertTrue(tr.is_closing())
|
|
self.assertFalse(self.protocol.connection_lost.called)
|
|
|
|
|
|
class TestFunctional(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
self.loop = asyncio.new_event_loop()
|
|
asyncio._set_event_loop(self.loop)
|
|
|
|
def tearDown(self):
|
|
self.loop.close()
|
|
asyncio._set_event_loop(None)
|
|
|
|
def test_add_reader_invalid_argument(self):
|
|
def assert_raises():
|
|
return self.assertRaisesRegex(ValueError, r'Invalid file object')
|
|
|
|
cb = lambda: None
|
|
|
|
with assert_raises():
|
|
self.loop.add_reader(object(), cb)
|
|
with assert_raises():
|
|
self.loop.add_writer(object(), cb)
|
|
|
|
with assert_raises():
|
|
self.loop.remove_reader(object())
|
|
with assert_raises():
|
|
self.loop.remove_writer(object())
|
|
|
|
def test_add_reader_or_writer_transport_fd(self):
|
|
def assert_raises():
|
|
return self.assertRaisesRegex(
|
|
RuntimeError,
|
|
r'File descriptor .* is used by transport')
|
|
|
|
async def runner():
|
|
tr, pr = await self.loop.create_connection(
|
|
lambda: asyncio.Protocol(), sock=rsock)
|
|
|
|
try:
|
|
cb = lambda: None
|
|
|
|
with assert_raises():
|
|
self.loop.add_reader(rsock, cb)
|
|
with assert_raises():
|
|
self.loop.add_reader(rsock.fileno(), cb)
|
|
|
|
with assert_raises():
|
|
self.loop.remove_reader(rsock)
|
|
with assert_raises():
|
|
self.loop.remove_reader(rsock.fileno())
|
|
|
|
with assert_raises():
|
|
self.loop.add_writer(rsock, cb)
|
|
with assert_raises():
|
|
self.loop.add_writer(rsock.fileno(), cb)
|
|
|
|
with assert_raises():
|
|
self.loop.remove_writer(rsock)
|
|
with assert_raises():
|
|
self.loop.remove_writer(rsock.fileno())
|
|
|
|
finally:
|
|
tr.close()
|
|
|
|
rsock, wsock = socket.socketpair()
|
|
try:
|
|
self.loop.run_until_complete(runner())
|
|
finally:
|
|
rsock.close()
|
|
wsock.close()
|
|
|
|
|
|
@support.requires_fork()
|
|
class TestFork(unittest.IsolatedAsyncioTestCase):
|
|
|
|
async def test_fork_not_share_event_loop(self):
|
|
# The forked process should not share the event loop with the parent
|
|
loop = asyncio.get_running_loop()
|
|
r, w = os.pipe()
|
|
self.addCleanup(os.close, r)
|
|
self.addCleanup(os.close, w)
|
|
pid = os.fork()
|
|
if pid == 0:
|
|
# child
|
|
try:
|
|
loop = asyncio.get_event_loop()
|
|
os.write(w, b'LOOP:' + str(id(loop)).encode())
|
|
except RuntimeError:
|
|
os.write(w, b'NO LOOP')
|
|
except BaseException as e:
|
|
os.write(w, b'ERROR:' + ascii(e).encode())
|
|
finally:
|
|
os._exit(0)
|
|
else:
|
|
# parent
|
|
result = os.read(r, 100)
|
|
self.assertEqual(result, b'NO LOOP')
|
|
wait_process(pid, exitcode=0)
|
|
|
|
@hashlib_helper.requires_hashdigest('md5')
|
|
@support.skip_if_sanitizer("TSAN doesn't support threads after fork", thread=True)
|
|
def test_fork_signal_handling(self):
|
|
self.addCleanup(multiprocessing_cleanup_tests)
|
|
|
|
# Sending signal to the forked process should not affect the parent
|
|
# process
|
|
ctx = multiprocessing.get_context('fork')
|
|
manager = ctx.Manager()
|
|
self.addCleanup(manager.shutdown)
|
|
child_started = manager.Event()
|
|
child_handled = manager.Event()
|
|
parent_handled = manager.Event()
|
|
|
|
def child_main():
|
|
def on_sigterm(*args):
|
|
child_handled.set()
|
|
sys.exit()
|
|
|
|
signal.signal(signal.SIGTERM, on_sigterm)
|
|
child_started.set()
|
|
while True:
|
|
time.sleep(1)
|
|
|
|
async def main():
|
|
loop = asyncio.get_running_loop()
|
|
loop.add_signal_handler(signal.SIGTERM, lambda *args: parent_handled.set())
|
|
|
|
process = ctx.Process(target=child_main)
|
|
process.start()
|
|
child_started.wait()
|
|
os.kill(process.pid, signal.SIGTERM)
|
|
process.join(timeout=support.SHORT_TIMEOUT)
|
|
|
|
async def func():
|
|
await asyncio.sleep(0.1)
|
|
return 42
|
|
|
|
# Test parent's loop is still functional
|
|
self.assertEqual(await asyncio.create_task(func()), 42)
|
|
|
|
asyncio.run(main())
|
|
|
|
child_handled.wait(timeout=support.SHORT_TIMEOUT)
|
|
self.assertFalse(parent_handled.is_set())
|
|
self.assertTrue(child_handled.is_set())
|
|
|
|
@hashlib_helper.requires_hashdigest('md5')
|
|
@support.skip_if_sanitizer("TSAN doesn't support threads after fork", thread=True)
|
|
def test_fork_asyncio_run(self):
|
|
self.addCleanup(multiprocessing_cleanup_tests)
|
|
|
|
ctx = multiprocessing.get_context('fork')
|
|
manager = ctx.Manager()
|
|
self.addCleanup(manager.shutdown)
|
|
result = manager.Value('i', 0)
|
|
|
|
async def child_main():
|
|
await asyncio.sleep(0.1)
|
|
result.value = 42
|
|
|
|
process = ctx.Process(target=lambda: asyncio.run(child_main()))
|
|
process.start()
|
|
process.join()
|
|
|
|
self.assertEqual(result.value, 42)
|
|
|
|
@hashlib_helper.requires_hashdigest('md5')
|
|
@support.skip_if_sanitizer("TSAN doesn't support threads after fork", thread=True)
|
|
def test_fork_asyncio_subprocess(self):
|
|
self.addCleanup(multiprocessing_cleanup_tests)
|
|
|
|
ctx = multiprocessing.get_context('fork')
|
|
manager = ctx.Manager()
|
|
self.addCleanup(manager.shutdown)
|
|
result = manager.Value('i', 1)
|
|
|
|
async def child_main():
|
|
proc = await asyncio.create_subprocess_exec(sys.executable, '-c', 'pass')
|
|
result.value = await proc.wait()
|
|
|
|
process = ctx.Process(target=lambda: asyncio.run(child_main()))
|
|
process.start()
|
|
process.join()
|
|
|
|
self.assertEqual(result.value, 0)
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|