mirror of https://github.com/python/cpython
135 lines
4.1 KiB
Python
135 lines
4.1 KiB
Python
import os
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import sys
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import unittest
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if sys.platform != 'win32':
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raise unittest.SkipTest('Windows only')
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import _winapi
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import asyncio
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from asyncio import _overlapped
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from asyncio import windows_events
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class UpperProto(asyncio.Protocol):
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def __init__(self):
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self.buf = []
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def connection_made(self, trans):
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self.trans = trans
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def data_received(self, data):
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self.buf.append(data)
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if b'\n' in data:
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self.trans.write(b''.join(self.buf).upper())
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self.trans.close()
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class ProactorTests(unittest.TestCase):
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def setUp(self):
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self.loop = asyncio.ProactorEventLoop()
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asyncio.set_event_loop(None)
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def tearDown(self):
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self.loop.close()
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self.loop = None
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def test_close(self):
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a, b = self.loop._socketpair()
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trans = self.loop._make_socket_transport(a, asyncio.Protocol())
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f = asyncio.async(self.loop.sock_recv(b, 100))
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trans.close()
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self.loop.run_until_complete(f)
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self.assertEqual(f.result(), b'')
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b.close()
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def test_double_bind(self):
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ADDRESS = r'\\.\pipe\test_double_bind-%s' % os.getpid()
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server1 = windows_events.PipeServer(ADDRESS)
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with self.assertRaises(PermissionError):
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windows_events.PipeServer(ADDRESS)
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server1.close()
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def test_pipe(self):
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res = self.loop.run_until_complete(self._test_pipe())
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self.assertEqual(res, 'done')
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def _test_pipe(self):
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ADDRESS = r'\\.\pipe\_test_pipe-%s' % os.getpid()
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with self.assertRaises(FileNotFoundError):
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yield from self.loop.create_pipe_connection(
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asyncio.Protocol, ADDRESS)
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[server] = yield from self.loop.start_serving_pipe(
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UpperProto, ADDRESS)
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self.assertIsInstance(server, windows_events.PipeServer)
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clients = []
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for i in range(5):
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stream_reader = asyncio.StreamReader(loop=self.loop)
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protocol = asyncio.StreamReaderProtocol(stream_reader)
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trans, proto = yield from self.loop.create_pipe_connection(
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lambda: protocol, ADDRESS)
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self.assertIsInstance(trans, asyncio.Transport)
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self.assertEqual(protocol, proto)
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clients.append((stream_reader, trans))
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for i, (r, w) in enumerate(clients):
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w.write('lower-{}\n'.format(i).encode())
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for i, (r, w) in enumerate(clients):
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response = yield from r.readline()
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self.assertEqual(response, 'LOWER-{}\n'.format(i).encode())
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w.close()
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server.close()
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with self.assertRaises(FileNotFoundError):
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yield from self.loop.create_pipe_connection(
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asyncio.Protocol, ADDRESS)
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return 'done'
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def test_wait_for_handle(self):
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event = _overlapped.CreateEvent(None, True, False, None)
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self.addCleanup(_winapi.CloseHandle, event)
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# Wait for unset event with 0.2s timeout;
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# result should be False at timeout
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f = self.loop._proactor.wait_for_handle(event, 0.2)
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start = self.loop.time()
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self.loop.run_until_complete(f)
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elapsed = self.loop.time() - start
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self.assertFalse(f.result())
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self.assertTrue(0.18 < elapsed < 0.9, elapsed)
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_overlapped.SetEvent(event)
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# Wait for for set event;
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# result should be True immediately
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f = self.loop._proactor.wait_for_handle(event, 10)
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start = self.loop.time()
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self.loop.run_until_complete(f)
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elapsed = self.loop.time() - start
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self.assertTrue(f.result())
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self.assertTrue(0 <= elapsed < 0.1, elapsed)
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_overlapped.ResetEvent(event)
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# Wait for unset event with a cancelled future;
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# CancelledError should be raised immediately
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f = self.loop._proactor.wait_for_handle(event, 10)
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f.cancel()
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start = self.loop.time()
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with self.assertRaises(asyncio.CancelledError):
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self.loop.run_until_complete(f)
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elapsed = self.loop.time() - start
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self.assertTrue(0 <= elapsed < 0.1, elapsed)
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if __name__ == '__main__':
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unittest.main()
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