| import os |
| import sys |
| import unittest |
| from unittest import mock |
| |
| if sys.platform != 'win32': |
| raise unittest.SkipTest('Windows only') |
| |
| import _winapi |
| |
| import asyncio |
| from asyncio import _overlapped |
| from asyncio import test_utils |
| from asyncio import windows_events |
| |
| |
| class UpperProto(asyncio.Protocol): |
| def __init__(self): |
| self.buf = [] |
| |
| def connection_made(self, trans): |
| self.trans = trans |
| |
| def data_received(self, data): |
| self.buf.append(data) |
| if b'\n' in data: |
| self.trans.write(b''.join(self.buf).upper()) |
| self.trans.close() |
| |
| |
| class ProactorTests(test_utils.TestCase): |
| |
| def setUp(self): |
| self.loop = asyncio.ProactorEventLoop() |
| self.set_event_loop(self.loop) |
| |
| def test_close(self): |
| a, b = self.loop._socketpair() |
| trans = self.loop._make_socket_transport(a, asyncio.Protocol()) |
| f = asyncio.ensure_future(self.loop.sock_recv(b, 100)) |
| trans.close() |
| self.loop.run_until_complete(f) |
| self.assertEqual(f.result(), b'') |
| b.close() |
| |
| def test_double_bind(self): |
| ADDRESS = r'\\.\pipe\test_double_bind-%s' % os.getpid() |
| server1 = windows_events.PipeServer(ADDRESS) |
| with self.assertRaises(PermissionError): |
| windows_events.PipeServer(ADDRESS) |
| server1.close() |
| |
| def test_pipe(self): |
| res = self.loop.run_until_complete(self._test_pipe()) |
| self.assertEqual(res, 'done') |
| |
| def _test_pipe(self): |
| ADDRESS = r'\\.\pipe\_test_pipe-%s' % os.getpid() |
| |
| with self.assertRaises(FileNotFoundError): |
| yield from self.loop.create_pipe_connection( |
| asyncio.Protocol, ADDRESS) |
| |
| [server] = yield from self.loop.start_serving_pipe( |
| UpperProto, ADDRESS) |
| self.assertIsInstance(server, windows_events.PipeServer) |
| |
| clients = [] |
| for i in range(5): |
| stream_reader = asyncio.StreamReader(loop=self.loop) |
| protocol = asyncio.StreamReaderProtocol(stream_reader, |
| loop=self.loop) |
| trans, proto = yield from self.loop.create_pipe_connection( |
| lambda: protocol, ADDRESS) |
| self.assertIsInstance(trans, asyncio.Transport) |
| self.assertEqual(protocol, proto) |
| clients.append((stream_reader, trans)) |
| |
| for i, (r, w) in enumerate(clients): |
| w.write('lower-{}\n'.format(i).encode()) |
| |
| for i, (r, w) in enumerate(clients): |
| response = yield from r.readline() |
| self.assertEqual(response, 'LOWER-{}\n'.format(i).encode()) |
| w.close() |
| |
| server.close() |
| |
| with self.assertRaises(FileNotFoundError): |
| yield from self.loop.create_pipe_connection( |
| asyncio.Protocol, ADDRESS) |
| |
| return 'done' |
| |
| def test_connect_pipe_cancel(self): |
| exc = OSError() |
| exc.winerror = _overlapped.ERROR_PIPE_BUSY |
| with mock.patch.object(_overlapped, 'ConnectPipe', side_effect=exc) as connect: |
| coro = self.loop._proactor.connect_pipe('pipe_address') |
| task = self.loop.create_task(coro) |
| |
| # check that it's possible to cancel connect_pipe() |
| task.cancel() |
| with self.assertRaises(asyncio.CancelledError): |
| self.loop.run_until_complete(task) |
| |
| def test_wait_for_handle(self): |
| event = _overlapped.CreateEvent(None, True, False, None) |
| self.addCleanup(_winapi.CloseHandle, event) |
| |
| # Wait for unset event with 0.5s timeout; |
| # result should be False at timeout |
| fut = self.loop._proactor.wait_for_handle(event, 0.5) |
| start = self.loop.time() |
| done = self.loop.run_until_complete(fut) |
| elapsed = self.loop.time() - start |
| |
| self.assertEqual(done, False) |
| self.assertFalse(fut.result()) |
| self.assertTrue(0.48 < elapsed < 0.9, elapsed) |
| |
| _overlapped.SetEvent(event) |
| |
| # Wait for set event; |
| # result should be True immediately |
| fut = self.loop._proactor.wait_for_handle(event, 10) |
| start = self.loop.time() |
| done = self.loop.run_until_complete(fut) |
| elapsed = self.loop.time() - start |
| |
| self.assertEqual(done, True) |
| self.assertTrue(fut.result()) |
| self.assertTrue(0 <= elapsed < 0.3, elapsed) |
| |
| # asyncio issue #195: cancelling a done _WaitHandleFuture |
| # must not crash |
| fut.cancel() |
| |
| def test_wait_for_handle_cancel(self): |
| event = _overlapped.CreateEvent(None, True, False, None) |
| self.addCleanup(_winapi.CloseHandle, event) |
| |
| # Wait for unset event with a cancelled future; |
| # CancelledError should be raised immediately |
| fut = self.loop._proactor.wait_for_handle(event, 10) |
| fut.cancel() |
| start = self.loop.time() |
| with self.assertRaises(asyncio.CancelledError): |
| self.loop.run_until_complete(fut) |
| elapsed = self.loop.time() - start |
| self.assertTrue(0 <= elapsed < 0.1, elapsed) |
| |
| # asyncio issue #195: cancelling a _WaitHandleFuture twice |
| # must not crash |
| fut = self.loop._proactor.wait_for_handle(event) |
| fut.cancel() |
| fut.cancel() |
| |
| |
| if __name__ == '__main__': |
| unittest.main() |