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"""Tests for window_utils"""
import socket
import sys
import unittest
import warnings
from unittest import mock
if sys.platform != 'win32':
raise unittest.SkipTest('Windows only')
import _winapi
from asyncio import _overlapped
from asyncio import windows_utils
try:
from test import support
except ImportError:
from asyncio import test_support as support
class WinsocketpairTests(unittest.TestCase):
def check_winsocketpair(self, ssock, csock):
csock.send(b'xxx')
self.assertEqual(b'xxx', ssock.recv(1024))
csock.close()
ssock.close()
def test_winsocketpair(self):
ssock, csock = windows_utils.socketpair()
self.check_winsocketpair(ssock, csock)
@unittest.skipUnless(support.IPV6_ENABLED, 'IPv6 not supported or enabled')
def test_winsocketpair_ipv6(self):
ssock, csock = windows_utils.socketpair(family=socket.AF_INET6)
self.check_winsocketpair(ssock, csock)
@unittest.skipIf(hasattr(socket, 'socketpair'),
'socket.socketpair is available')
@mock.patch('asyncio.windows_utils.socket')
def test_winsocketpair_exc(self, m_socket):
m_socket.AF_INET = socket.AF_INET
m_socket.SOCK_STREAM = socket.SOCK_STREAM
m_socket.socket.return_value.getsockname.return_value = ('', 12345)
m_socket.socket.return_value.accept.return_value = object(), object()
m_socket.socket.return_value.connect.side_effect = OSError()
self.assertRaises(OSError, windows_utils.socketpair)
def test_winsocketpair_invalid_args(self):
self.assertRaises(ValueError,
windows_utils.socketpair, family=socket.AF_UNSPEC)
self.assertRaises(ValueError,
windows_utils.socketpair, type=socket.SOCK_DGRAM)
self.assertRaises(ValueError,
windows_utils.socketpair, proto=1)
@unittest.skipIf(hasattr(socket, 'socketpair'),
'socket.socketpair is available')
@mock.patch('asyncio.windows_utils.socket')
def test_winsocketpair_close(self, m_socket):
m_socket.AF_INET = socket.AF_INET
m_socket.SOCK_STREAM = socket.SOCK_STREAM
sock = mock.Mock()
m_socket.socket.return_value = sock
sock.bind.side_effect = OSError
self.assertRaises(OSError, windows_utils.socketpair)
self.assertTrue(sock.close.called)
class PipeTests(unittest.TestCase):
def test_pipe_overlapped(self):
h1, h2 = windows_utils.pipe(overlapped=(True, True))
try:
ov1 = _overlapped.Overlapped()
self.assertFalse(ov1.pending)
self.assertEqual(ov1.error, 0)
ov1.ReadFile(h1, 100)
self.assertTrue(ov1.pending)
self.assertEqual(ov1.error, _winapi.ERROR_IO_PENDING)
ERROR_IO_INCOMPLETE = 996
try:
ov1.getresult()
except OSError as e:
self.assertEqual(e.winerror, ERROR_IO_INCOMPLETE)
else:
raise RuntimeError('expected ERROR_IO_INCOMPLETE')
ov2 = _overlapped.Overlapped()
self.assertFalse(ov2.pending)
self.assertEqual(ov2.error, 0)
ov2.WriteFile(h2, b"hello")
self.assertIn(ov2.error, {0, _winapi.ERROR_IO_PENDING})
res = _winapi.WaitForMultipleObjects([ov2.event], False, 100)
self.assertEqual(res, _winapi.WAIT_OBJECT_0)
self.assertFalse(ov1.pending)
self.assertEqual(ov1.error, ERROR_IO_INCOMPLETE)
self.assertFalse(ov2.pending)
self.assertIn(ov2.error, {0, _winapi.ERROR_IO_PENDING})
self.assertEqual(ov1.getresult(), b"hello")
finally:
_winapi.CloseHandle(h1)
_winapi.CloseHandle(h2)
def test_pipe_handle(self):
h, _ = windows_utils.pipe(overlapped=(True, True))
_winapi.CloseHandle(_)
p = windows_utils.PipeHandle(h)
self.assertEqual(p.fileno(), h)
self.assertEqual(p.handle, h)
# check garbage collection of p closes handle
with warnings.catch_warnings():
warnings.filterwarnings("ignore", "", ResourceWarning)
del p
support.gc_collect()
try:
_winapi.CloseHandle(h)
except OSError as e:
self.assertEqual(e.winerror, 6) # ERROR_INVALID_HANDLE
else:
raise RuntimeError('expected ERROR_INVALID_HANDLE')
class PopenTests(unittest.TestCase):
def test_popen(self):
command = r"""if 1:
import sys
s = sys.stdin.readline()
sys.stdout.write(s.upper())
sys.stderr.write('stderr')
"""
msg = b"blah\n"
p = windows_utils.Popen([sys.executable, '-c', command],
stdin=windows_utils.PIPE,
stdout=windows_utils.PIPE,
stderr=windows_utils.PIPE)
for f in [p.stdin, p.stdout, p.stderr]:
self.assertIsInstance(f, windows_utils.PipeHandle)
ovin = _overlapped.Overlapped()
ovout = _overlapped.Overlapped()
overr = _overlapped.Overlapped()
ovin.WriteFile(p.stdin.handle, msg)
ovout.ReadFile(p.stdout.handle, 100)
overr.ReadFile(p.stderr.handle, 100)
events = [ovin.event, ovout.event, overr.event]
# Super-long timeout for slow buildbots.
res = _winapi.WaitForMultipleObjects(events, True, 10000)
self.assertEqual(res, _winapi.WAIT_OBJECT_0)
self.assertFalse(ovout.pending)
self.assertFalse(overr.pending)
self.assertFalse(ovin.pending)
self.assertEqual(ovin.getresult(), len(msg))
out = ovout.getresult().rstrip()
err = overr.getresult().rstrip()
self.assertGreater(len(out), 0)
self.assertGreater(len(err), 0)
# allow for partial reads...
self.assertTrue(msg.upper().rstrip().startswith(out))
self.assertTrue(b"stderr".startswith(err))
# The context manager calls wait() and closes resources
with p:
pass
if __name__ == '__main__':
unittest.main()
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