cpython/Lib/test/test_asyncio/test_unix_events.py

771 lines
28 KiB
Python

"""Tests for unix_events.py."""
import gc
import errno
import io
import pprint
import signal
import stat
import sys
import unittest
import unittest.mock
if sys.platform == 'win32':
raise unittest.SkipTest('UNIX only')
from asyncio import events
from asyncio import futures
from asyncio import protocols
from asyncio import test_utils
from asyncio import unix_events
@unittest.skipUnless(signal, 'Signals are not supported')
class SelectorEventLoopTests(unittest.TestCase):
def setUp(self):
self.loop = unix_events.SelectorEventLoop()
events.set_event_loop(None)
def tearDown(self):
self.loop.close()
def test_check_signal(self):
self.assertRaises(
TypeError, self.loop._check_signal, '1')
self.assertRaises(
ValueError, self.loop._check_signal, signal.NSIG + 1)
def test_handle_signal_no_handler(self):
self.loop._handle_signal(signal.NSIG + 1, ())
def test_handle_signal_cancelled_handler(self):
h = events.Handle(unittest.mock.Mock(), ())
h.cancel()
self.loop._signal_handlers[signal.NSIG + 1] = h
self.loop.remove_signal_handler = unittest.mock.Mock()
self.loop._handle_signal(signal.NSIG + 1, ())
self.loop.remove_signal_handler.assert_called_with(signal.NSIG + 1)
@unittest.mock.patch('asyncio.unix_events.signal')
def test_add_signal_handler_setup_error(self, m_signal):
m_signal.NSIG = signal.NSIG
m_signal.set_wakeup_fd.side_effect = ValueError
self.assertRaises(
RuntimeError,
self.loop.add_signal_handler,
signal.SIGINT, lambda: True)
@unittest.mock.patch('asyncio.unix_events.signal')
def test_add_signal_handler(self, m_signal):
m_signal.NSIG = signal.NSIG
cb = lambda: True
self.loop.add_signal_handler(signal.SIGHUP, cb)
h = self.loop._signal_handlers.get(signal.SIGHUP)
self.assertTrue(isinstance(h, events.Handle))
self.assertEqual(h._callback, cb)
@unittest.mock.patch('asyncio.unix_events.signal')
def test_add_signal_handler_install_error(self, m_signal):
m_signal.NSIG = signal.NSIG
def set_wakeup_fd(fd):
if fd == -1:
raise ValueError()
m_signal.set_wakeup_fd = set_wakeup_fd
class Err(OSError):
errno = errno.EFAULT
m_signal.signal.side_effect = Err
self.assertRaises(
Err,
self.loop.add_signal_handler,
signal.SIGINT, lambda: True)
@unittest.mock.patch('asyncio.unix_events.signal')
@unittest.mock.patch('asyncio.unix_events.logger')
def test_add_signal_handler_install_error2(self, m_logging, m_signal):
m_signal.NSIG = signal.NSIG
class Err(OSError):
errno = errno.EINVAL
m_signal.signal.side_effect = Err
self.loop._signal_handlers[signal.SIGHUP] = lambda: True
self.assertRaises(
RuntimeError,
self.loop.add_signal_handler,
signal.SIGINT, lambda: True)
self.assertFalse(m_logging.info.called)
self.assertEqual(1, m_signal.set_wakeup_fd.call_count)
@unittest.mock.patch('asyncio.unix_events.signal')
@unittest.mock.patch('asyncio.unix_events.logger')
def test_add_signal_handler_install_error3(self, m_logging, m_signal):
class Err(OSError):
errno = errno.EINVAL
m_signal.signal.side_effect = Err
m_signal.NSIG = signal.NSIG
self.assertRaises(
RuntimeError,
self.loop.add_signal_handler,
signal.SIGINT, lambda: True)
self.assertFalse(m_logging.info.called)
self.assertEqual(2, m_signal.set_wakeup_fd.call_count)
@unittest.mock.patch('asyncio.unix_events.signal')
def test_remove_signal_handler(self, m_signal):
m_signal.NSIG = signal.NSIG
self.loop.add_signal_handler(signal.SIGHUP, lambda: True)
self.assertTrue(
self.loop.remove_signal_handler(signal.SIGHUP))
self.assertTrue(m_signal.set_wakeup_fd.called)
self.assertTrue(m_signal.signal.called)
self.assertEqual(
(signal.SIGHUP, m_signal.SIG_DFL), m_signal.signal.call_args[0])
@unittest.mock.patch('asyncio.unix_events.signal')
def test_remove_signal_handler_2(self, m_signal):
m_signal.NSIG = signal.NSIG
m_signal.SIGINT = signal.SIGINT
self.loop.add_signal_handler(signal.SIGINT, lambda: True)
self.loop._signal_handlers[signal.SIGHUP] = object()
m_signal.set_wakeup_fd.reset_mock()
self.assertTrue(
self.loop.remove_signal_handler(signal.SIGINT))
self.assertFalse(m_signal.set_wakeup_fd.called)
self.assertTrue(m_signal.signal.called)
self.assertEqual(
(signal.SIGINT, m_signal.default_int_handler),
m_signal.signal.call_args[0])
@unittest.mock.patch('asyncio.unix_events.signal')
@unittest.mock.patch('asyncio.unix_events.logger')
def test_remove_signal_handler_cleanup_error(self, m_logging, m_signal):
m_signal.NSIG = signal.NSIG
self.loop.add_signal_handler(signal.SIGHUP, lambda: True)
m_signal.set_wakeup_fd.side_effect = ValueError
self.loop.remove_signal_handler(signal.SIGHUP)
self.assertTrue(m_logging.info)
@unittest.mock.patch('asyncio.unix_events.signal')
def test_remove_signal_handler_error(self, m_signal):
m_signal.NSIG = signal.NSIG
self.loop.add_signal_handler(signal.SIGHUP, lambda: True)
m_signal.signal.side_effect = OSError
self.assertRaises(
OSError, self.loop.remove_signal_handler, signal.SIGHUP)
@unittest.mock.patch('asyncio.unix_events.signal')
def test_remove_signal_handler_error2(self, m_signal):
m_signal.NSIG = signal.NSIG
self.loop.add_signal_handler(signal.SIGHUP, lambda: True)
class Err(OSError):
errno = errno.EINVAL
m_signal.signal.side_effect = Err
self.assertRaises(
RuntimeError, self.loop.remove_signal_handler, signal.SIGHUP)
@unittest.mock.patch('os.WTERMSIG')
@unittest.mock.patch('os.WEXITSTATUS')
@unittest.mock.patch('os.WIFSIGNALED')
@unittest.mock.patch('os.WIFEXITED')
@unittest.mock.patch('os.waitpid')
def test__sig_chld(self, m_waitpid, m_WIFEXITED, m_WIFSIGNALED,
m_WEXITSTATUS, m_WTERMSIG):
m_waitpid.side_effect = [(7, object()), ChildProcessError]
m_WIFEXITED.return_value = True
m_WIFSIGNALED.return_value = False
m_WEXITSTATUS.return_value = 3
transp = unittest.mock.Mock()
self.loop._subprocesses[7] = transp
self.loop._sig_chld()
transp._process_exited.assert_called_with(3)
self.assertFalse(m_WTERMSIG.called)
@unittest.mock.patch('os.WTERMSIG')
@unittest.mock.patch('os.WEXITSTATUS')
@unittest.mock.patch('os.WIFSIGNALED')
@unittest.mock.patch('os.WIFEXITED')
@unittest.mock.patch('os.waitpid')
def test__sig_chld_signal(self, m_waitpid, m_WIFEXITED, m_WIFSIGNALED,
m_WEXITSTATUS, m_WTERMSIG):
m_waitpid.side_effect = [(7, object()), ChildProcessError]
m_WIFEXITED.return_value = False
m_WIFSIGNALED.return_value = True
m_WTERMSIG.return_value = 1
transp = unittest.mock.Mock()
self.loop._subprocesses[7] = transp
self.loop._sig_chld()
transp._process_exited.assert_called_with(-1)
self.assertFalse(m_WEXITSTATUS.called)
@unittest.mock.patch('os.WTERMSIG')
@unittest.mock.patch('os.WEXITSTATUS')
@unittest.mock.patch('os.WIFSIGNALED')
@unittest.mock.patch('os.WIFEXITED')
@unittest.mock.patch('os.waitpid')
def test__sig_chld_zero_pid(self, m_waitpid, m_WIFEXITED, m_WIFSIGNALED,
m_WEXITSTATUS, m_WTERMSIG):
m_waitpid.side_effect = [(0, object()), ChildProcessError]
transp = unittest.mock.Mock()
self.loop._subprocesses[7] = transp
self.loop._sig_chld()
self.assertFalse(transp._process_exited.called)
self.assertFalse(m_WIFSIGNALED.called)
self.assertFalse(m_WIFEXITED.called)
self.assertFalse(m_WTERMSIG.called)
self.assertFalse(m_WEXITSTATUS.called)
@unittest.mock.patch('os.WTERMSIG')
@unittest.mock.patch('os.WEXITSTATUS')
@unittest.mock.patch('os.WIFSIGNALED')
@unittest.mock.patch('os.WIFEXITED')
@unittest.mock.patch('os.waitpid')
def test__sig_chld_not_registered_subprocess(self, m_waitpid,
m_WIFEXITED, m_WIFSIGNALED,
m_WEXITSTATUS, m_WTERMSIG):
m_waitpid.side_effect = [(7, object()), ChildProcessError]
m_WIFEXITED.return_value = True
m_WIFSIGNALED.return_value = False
m_WEXITSTATUS.return_value = 3
self.loop._sig_chld()
self.assertFalse(m_WTERMSIG.called)
@unittest.mock.patch('os.WTERMSIG')
@unittest.mock.patch('os.WEXITSTATUS')
@unittest.mock.patch('os.WIFSIGNALED')
@unittest.mock.patch('os.WIFEXITED')
@unittest.mock.patch('os.waitpid')
def test__sig_chld_unknown_status(self, m_waitpid,
m_WIFEXITED, m_WIFSIGNALED,
m_WEXITSTATUS, m_WTERMSIG):
m_waitpid.side_effect = [(7, object()), ChildProcessError]
m_WIFEXITED.return_value = False
m_WIFSIGNALED.return_value = False
transp = unittest.mock.Mock()
self.loop._subprocesses[7] = transp
self.loop._sig_chld()
self.assertFalse(transp._process_exited.called)
self.assertFalse(m_WEXITSTATUS.called)
self.assertFalse(m_WTERMSIG.called)
@unittest.mock.patch('asyncio.unix_events.logger')
@unittest.mock.patch('os.WTERMSIG')
@unittest.mock.patch('os.WEXITSTATUS')
@unittest.mock.patch('os.WIFSIGNALED')
@unittest.mock.patch('os.WIFEXITED')
@unittest.mock.patch('os.waitpid')
def test__sig_chld_unknown_status_in_handler(self, m_waitpid,
m_WIFEXITED, m_WIFSIGNALED,
m_WEXITSTATUS, m_WTERMSIG,
m_log):
m_waitpid.side_effect = Exception
transp = unittest.mock.Mock()
self.loop._subprocesses[7] = transp
self.loop._sig_chld()
self.assertFalse(transp._process_exited.called)
self.assertFalse(m_WIFSIGNALED.called)
self.assertFalse(m_WIFEXITED.called)
self.assertFalse(m_WTERMSIG.called)
self.assertFalse(m_WEXITSTATUS.called)
m_log.exception.assert_called_with(
'Unknown exception in SIGCHLD handler')
@unittest.mock.patch('os.waitpid')
def test__sig_chld_process_error(self, m_waitpid):
m_waitpid.side_effect = ChildProcessError
self.loop._sig_chld()
self.assertTrue(m_waitpid.called)
class UnixReadPipeTransportTests(unittest.TestCase):
def setUp(self):
self.loop = test_utils.TestLoop()
self.protocol = test_utils.make_test_protocol(protocols.Protocol)
self.pipe = unittest.mock.Mock(spec_set=io.RawIOBase)
self.pipe.fileno.return_value = 5
fcntl_patcher = unittest.mock.patch('fcntl.fcntl')
fcntl_patcher.start()
self.addCleanup(fcntl_patcher.stop)
def test_ctor(self):
tr = unix_events._UnixReadPipeTransport(
self.loop, self.pipe, self.protocol)
self.loop.assert_reader(5, tr._read_ready)
test_utils.run_briefly(self.loop)
self.protocol.connection_made.assert_called_with(tr)
def test_ctor_with_waiter(self):
fut = futures.Future(loop=self.loop)
unix_events._UnixReadPipeTransport(
self.loop, self.pipe, self.protocol, fut)
test_utils.run_briefly(self.loop)
self.assertIsNone(fut.result())
@unittest.mock.patch('os.read')
def test__read_ready(self, m_read):
tr = unix_events._UnixReadPipeTransport(
self.loop, self.pipe, self.protocol)
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')
@unittest.mock.patch('os.read')
def test__read_ready_eof(self, m_read):
tr = unix_events._UnixReadPipeTransport(
self.loop, self.pipe, self.protocol)
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)
@unittest.mock.patch('os.read')
def test__read_ready_blocked(self, m_read):
tr = unix_events._UnixReadPipeTransport(
self.loop, self.pipe, self.protocol)
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)
@unittest.mock.patch('asyncio.log.logger.exception')
@unittest.mock.patch('os.read')
def test__read_ready_error(self, m_read, m_logexc):
tr = unix_events._UnixReadPipeTransport(
self.loop, self.pipe, self.protocol)
err = OSError()
m_read.side_effect = err
tr._close = unittest.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('Fatal error for %s', tr)
@unittest.mock.patch('os.read')
def test_pause_reading(self, m_read):
tr = unix_events._UnixReadPipeTransport(
self.loop, self.pipe, self.protocol)
m = unittest.mock.Mock()
self.loop.add_reader(5, m)
tr.pause_reading()
self.assertFalse(self.loop.readers)
@unittest.mock.patch('os.read')
def test_resume_reading(self, m_read):
tr = unix_events._UnixReadPipeTransport(
self.loop, self.pipe, self.protocol)
tr.resume_reading()
self.loop.assert_reader(5, tr._read_ready)
@unittest.mock.patch('os.read')
def test_close(self, m_read):
tr = unix_events._UnixReadPipeTransport(
self.loop, self.pipe, self.protocol)
tr._close = unittest.mock.Mock()
tr.close()
tr._close.assert_called_with(None)
@unittest.mock.patch('os.read')
def test_close_already_closing(self, m_read):
tr = unix_events._UnixReadPipeTransport(
self.loop, self.pipe, self.protocol)
tr._closing = True
tr._close = unittest.mock.Mock()
tr.close()
self.assertFalse(tr._close.called)
@unittest.mock.patch('os.read')
def test__close(self, m_read):
tr = unix_events._UnixReadPipeTransport(
self.loop, self.pipe, self.protocol)
err = object()
tr._close(err)
self.assertTrue(tr._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 = unix_events._UnixReadPipeTransport(
self.loop, self.pipe, self.protocol)
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.assertEqual(2, sys.getrefcount(self.protocol),
pprint.pformat(gc.get_referrers(self.protocol)))
self.assertIsNone(tr._loop)
self.assertEqual(2, sys.getrefcount(self.loop),
pprint.pformat(gc.get_referrers(self.loop)))
def test__call_connection_lost_with_err(self):
tr = unix_events._UnixReadPipeTransport(
self.loop, self.pipe, self.protocol)
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.assertEqual(2, sys.getrefcount(self.protocol),
pprint.pformat(gc.get_referrers(self.protocol)))
self.assertIsNone(tr._loop)
self.assertEqual(2, sys.getrefcount(self.loop),
pprint.pformat(gc.get_referrers(self.loop)))
class UnixWritePipeTransportTests(unittest.TestCase):
def setUp(self):
self.loop = test_utils.TestLoop()
self.protocol = test_utils.make_test_protocol(protocols.BaseProtocol)
self.pipe = unittest.mock.Mock(spec_set=io.RawIOBase)
self.pipe.fileno.return_value = 5
fcntl_patcher = unittest.mock.patch('fcntl.fcntl')
fcntl_patcher.start()
self.addCleanup(fcntl_patcher.stop)
fstat_patcher = unittest.mock.patch('os.fstat')
m_fstat = fstat_patcher.start()
st = unittest.mock.Mock()
st.st_mode = stat.S_IFIFO
m_fstat.return_value = st
self.addCleanup(fstat_patcher.stop)
def test_ctor(self):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
self.loop.assert_reader(5, tr._read_ready)
test_utils.run_briefly(self.loop)
self.protocol.connection_made.assert_called_with(tr)
def test_ctor_with_waiter(self):
fut = futures.Future(loop=self.loop)
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol, fut)
self.loop.assert_reader(5, tr._read_ready)
test_utils.run_briefly(self.loop)
self.assertEqual(None, fut.result())
def test_can_write_eof(self):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
self.assertTrue(tr.can_write_eof())
@unittest.mock.patch('os.write')
def test_write(self, m_write):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
m_write.return_value = 4
tr.write(b'data')
m_write.assert_called_with(5, b'data')
self.assertFalse(self.loop.writers)
self.assertEqual([], tr._buffer)
@unittest.mock.patch('os.write')
def test_write_no_data(self, m_write):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
tr.write(b'')
self.assertFalse(m_write.called)
self.assertFalse(self.loop.writers)
self.assertEqual([], tr._buffer)
@unittest.mock.patch('os.write')
def test_write_partial(self, m_write):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
m_write.return_value = 2
tr.write(b'data')
m_write.assert_called_with(5, b'data')
self.loop.assert_writer(5, tr._write_ready)
self.assertEqual([b'ta'], tr._buffer)
@unittest.mock.patch('os.write')
def test_write_buffer(self, m_write):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
self.loop.add_writer(5, tr._write_ready)
tr._buffer = [b'previous']
tr.write(b'data')
self.assertFalse(m_write.called)
self.loop.assert_writer(5, tr._write_ready)
self.assertEqual([b'previous', b'data'], tr._buffer)
@unittest.mock.patch('os.write')
def test_write_again(self, m_write):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
m_write.side_effect = BlockingIOError()
tr.write(b'data')
m_write.assert_called_with(5, b'data')
self.loop.assert_writer(5, tr._write_ready)
self.assertEqual([b'data'], tr._buffer)
@unittest.mock.patch('asyncio.unix_events.logger')
@unittest.mock.patch('os.write')
def test_write_err(self, m_write, m_log):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
err = OSError()
m_write.side_effect = err
tr._fatal_error = unittest.mock.Mock()
tr.write(b'data')
m_write.assert_called_with(5, b'data')
self.assertFalse(self.loop.writers)
self.assertEqual([], tr._buffer)
tr._fatal_error.assert_called_with(err)
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.')
@unittest.mock.patch('os.write')
def test_write_close(self, m_write):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
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 = unix_events._UnixWritePipeTransport(self.loop, self.pipe,
self.protocol)
tr._read_ready()
self.assertFalse(self.loop.readers)
self.assertFalse(self.loop.writers)
self.assertTrue(tr._closing)
test_utils.run_briefly(self.loop)
self.protocol.connection_lost.assert_called_with(None)
@unittest.mock.patch('os.write')
def test__write_ready(self, m_write):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
self.loop.add_writer(5, tr._write_ready)
tr._buffer = [b'da', b'ta']
m_write.return_value = 4
tr._write_ready()
m_write.assert_called_with(5, b'data')
self.assertFalse(self.loop.writers)
self.assertEqual([], tr._buffer)
@unittest.mock.patch('os.write')
def test__write_ready_partial(self, m_write):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
self.loop.add_writer(5, tr._write_ready)
tr._buffer = [b'da', b'ta']
m_write.return_value = 3
tr._write_ready()
m_write.assert_called_with(5, b'data')
self.loop.assert_writer(5, tr._write_ready)
self.assertEqual([b'a'], tr._buffer)
@unittest.mock.patch('os.write')
def test__write_ready_again(self, m_write):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
self.loop.add_writer(5, tr._write_ready)
tr._buffer = [b'da', b'ta']
m_write.side_effect = BlockingIOError()
tr._write_ready()
m_write.assert_called_with(5, b'data')
self.loop.assert_writer(5, tr._write_ready)
self.assertEqual([b'data'], tr._buffer)
@unittest.mock.patch('os.write')
def test__write_ready_empty(self, m_write):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
self.loop.add_writer(5, tr._write_ready)
tr._buffer = [b'da', b'ta']
m_write.return_value = 0
tr._write_ready()
m_write.assert_called_with(5, b'data')
self.loop.assert_writer(5, tr._write_ready)
self.assertEqual([b'data'], tr._buffer)
@unittest.mock.patch('asyncio.log.logger.exception')
@unittest.mock.patch('os.write')
def test__write_ready_err(self, m_write, m_logexc):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
self.loop.add_writer(5, tr._write_ready)
tr._buffer = [b'da', b'ta']
m_write.side_effect = err = OSError()
tr._write_ready()
m_write.assert_called_with(5, b'data')
self.assertFalse(self.loop.writers)
self.assertFalse(self.loop.readers)
self.assertEqual([], tr._buffer)
self.assertTrue(tr._closing)
m_logexc.assert_called_with('Fatal error for %s', tr)
self.assertEqual(1, tr._conn_lost)
test_utils.run_briefly(self.loop)
self.protocol.connection_lost.assert_called_with(err)
@unittest.mock.patch('os.write')
def test__write_ready_closing(self, m_write):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
self.loop.add_writer(5, tr._write_ready)
tr._closing = True
tr._buffer = [b'da', b'ta']
m_write.return_value = 4
tr._write_ready()
m_write.assert_called_with(5, b'data')
self.assertFalse(self.loop.writers)
self.assertFalse(self.loop.readers)
self.assertEqual([], tr._buffer)
self.protocol.connection_lost.assert_called_with(None)
self.pipe.close.assert_called_with()
@unittest.mock.patch('os.write')
def test_abort(self, m_write):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
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._closing)
test_utils.run_briefly(self.loop)
self.protocol.connection_lost.assert_called_with(None)
def test__call_connection_lost(self):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
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.assertEqual(2, sys.getrefcount(self.protocol),
pprint.pformat(gc.get_referrers(self.protocol)))
self.assertIsNone(tr._loop)
self.assertEqual(2, sys.getrefcount(self.loop),
pprint.pformat(gc.get_referrers(self.loop)))
def test__call_connection_lost_with_err(self):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
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.assertEqual(2, sys.getrefcount(self.protocol),
pprint.pformat(gc.get_referrers(self.protocol)))
self.assertIsNone(tr._loop)
self.assertEqual(2, sys.getrefcount(self.loop),
pprint.pformat(gc.get_referrers(self.loop)))
def test_close(self):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
tr.write_eof = unittest.mock.Mock()
tr.close()
tr.write_eof.assert_called_with()
def test_close_closing(self):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
tr.write_eof = unittest.mock.Mock()
tr._closing = True
tr.close()
self.assertFalse(tr.write_eof.called)
def test_write_eof(self):
tr = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
tr.write_eof()
self.assertTrue(tr._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 = unix_events._UnixWritePipeTransport(
self.loop, self.pipe, self.protocol)
tr._buffer = [b'data']
tr.write_eof()
self.assertTrue(tr._closing)
self.assertFalse(self.protocol.connection_lost.called)