cpython/Lib/test/test_asyncio/test_server.py

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import asyncio
import time
import threading
import unittest
from test import support
from test.test_asyncio import utils as test_utils
from test.test_asyncio import functional as func_tests
def tearDownModule():
asyncio.set_event_loop_policy(None)
class BaseStartServer(func_tests.FunctionalTestCaseMixin):
def new_loop(self):
raise NotImplementedError
def test_start_server_1(self):
HELLO_MSG = b'1' * 1024 * 5 + b'\n'
def client(sock, addr):
for i in range(10):
time.sleep(0.2)
if srv.is_serving():
break
else:
raise RuntimeError
sock.settimeout(2)
sock.connect(addr)
sock.send(HELLO_MSG)
sock.recv_all(1)
sock.close()
async def serve(reader, writer):
await reader.readline()
main_task.cancel()
writer.write(b'1')
writer.close()
await writer.wait_closed()
async def main(srv):
async with srv:
await srv.serve_forever()
with self.assertWarns(DeprecationWarning):
srv = self.loop.run_until_complete(asyncio.start_server(
serve, support.HOSTv4, 0, loop=self.loop, start_serving=False))
self.assertFalse(srv.is_serving())
main_task = self.loop.create_task(main(srv))
addr = srv.sockets[0].getsockname()
with self.assertRaises(asyncio.CancelledError):
with self.tcp_client(lambda sock: client(sock, addr)):
self.loop.run_until_complete(main_task)
self.assertEqual(srv.sockets, ())
self.assertIsNone(srv._sockets)
self.assertIsNone(srv._waiters)
self.assertFalse(srv.is_serving())
with self.assertRaisesRegex(RuntimeError, r'is closed'):
self.loop.run_until_complete(srv.serve_forever())
class SelectorStartServerTests(BaseStartServer, unittest.TestCase):
def new_loop(self):
return asyncio.SelectorEventLoop()
@support.skip_unless_bind_unix_socket
def test_start_unix_server_1(self):
HELLO_MSG = b'1' * 1024 * 5 + b'\n'
started = threading.Event()
def client(sock, addr):
sock.settimeout(2)
started.wait(5)
sock.connect(addr)
sock.send(HELLO_MSG)
sock.recv_all(1)
sock.close()
async def serve(reader, writer):
await reader.readline()
main_task.cancel()
writer.write(b'1')
writer.close()
await writer.wait_closed()
async def main(srv):
async with srv:
self.assertFalse(srv.is_serving())
await srv.start_serving()
self.assertTrue(srv.is_serving())
started.set()
await srv.serve_forever()
with test_utils.unix_socket_path() as addr:
with self.assertWarns(DeprecationWarning):
srv = self.loop.run_until_complete(asyncio.start_unix_server(
serve, addr, loop=self.loop, start_serving=False))
main_task = self.loop.create_task(main(srv))
with self.assertRaises(asyncio.CancelledError):
with self.unix_client(lambda sock: client(sock, addr)):
self.loop.run_until_complete(main_task)
self.assertEqual(srv.sockets, ())
self.assertIsNone(srv._sockets)
self.assertIsNone(srv._waiters)
self.assertFalse(srv.is_serving())
with self.assertRaisesRegex(RuntimeError, r'is closed'):
self.loop.run_until_complete(srv.serve_forever())
@unittest.skipUnless(hasattr(asyncio, 'ProactorEventLoop'), 'Windows only')
class ProactorStartServerTests(BaseStartServer, unittest.TestCase):
def new_loop(self):
return asyncio.ProactorEventLoop()
if __name__ == '__main__':
unittest.main()