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482 lines
16 KiB
482 lines
16 KiB
4 years ago
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"""Test asyncio support"""
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# Copyright (c) PyZMQ Developers
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# Distributed under the terms of the Modified BSD License.
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import json
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from multiprocessing import Process
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import os
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import sys
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import pytest
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from pytest import mark
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import zmq
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from zmq.utils.strtypes import u
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try:
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import asyncio
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import zmq.asyncio as zaio
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from zmq.auth.asyncio import AsyncioAuthenticator
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except ImportError:
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if sys.version_info >= (3,4):
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raise
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asyncio = None
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from concurrent.futures import CancelledError
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from zmq.tests import BaseZMQTestCase, SkipTest
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from zmq.tests.test_auth import TestThreadAuthentication
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class ProcessForTeardownTest(Process):
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def __init__(self, event_loop_policy_class):
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Process.__init__(self)
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self.event_loop_policy_class = event_loop_policy_class
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def run(self):
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"""Leave context, socket and event loop upon implicit disposal"""
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asyncio.set_event_loop_policy(self.event_loop_policy_class())
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actx = zaio.Context.instance()
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socket = actx.socket(zmq.PAIR)
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socket.bind_to_random_port('tcp://127.0.0.1')
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@asyncio.coroutine
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def never_ending_task(socket):
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yield from socket.recv() # never ever receive anything
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loop = asyncio.get_event_loop()
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coro = asyncio.wait_for(never_ending_task(socket), timeout=1)
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try:
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loop.run_until_complete(coro)
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except asyncio.TimeoutError:
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pass # expected timeout
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else:
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assert False, "never_ending_task was completed unexpectedly"
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class TestAsyncIOSocket(BaseZMQTestCase):
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if asyncio is not None:
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Context = zaio.Context
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def setUp(self):
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if asyncio is None:
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raise SkipTest()
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self.loop = asyncio.new_event_loop()
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asyncio.set_event_loop(self.loop)
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super(TestAsyncIOSocket, self).setUp()
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def tearDown(self):
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self.loop.close()
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super().tearDown()
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def test_socket_class(self):
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s = self.context.socket(zmq.PUSH)
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assert isinstance(s, zaio.Socket)
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s.close()
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def test_instance_subclass_first(self):
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actx = zmq.asyncio.Context.instance()
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ctx = zmq.Context.instance()
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ctx.term()
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actx.term()
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assert type(ctx) is zmq.Context
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assert type(actx) is zmq.asyncio.Context
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def test_instance_subclass_second(self):
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ctx = zmq.Context.instance()
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actx = zmq.asyncio.Context.instance()
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ctx.term()
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actx.term()
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assert type(ctx) is zmq.Context
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assert type(actx) is zmq.asyncio.Context
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def test_recv_multipart(self):
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@asyncio.coroutine
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def test():
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a, b = self.create_bound_pair(zmq.PUSH, zmq.PULL)
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f = b.recv_multipart()
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assert not f.done()
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yield from a.send(b'hi')
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recvd = yield from f
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self.assertEqual(recvd, [b'hi'])
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self.loop.run_until_complete(test())
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def test_recv(self):
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@asyncio.coroutine
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def test():
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a, b = self.create_bound_pair(zmq.PUSH, zmq.PULL)
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f1 = b.recv()
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f2 = b.recv()
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assert not f1.done()
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assert not f2.done()
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yield from a.send_multipart([b'hi', b'there'])
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recvd = yield from f2
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assert f1.done()
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self.assertEqual(f1.result(), b'hi')
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self.assertEqual(recvd, b'there')
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self.loop.run_until_complete(test())
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@mark.skipif(not hasattr(zmq, 'RCVTIMEO'), reason="requires RCVTIMEO")
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def test_recv_timeout(self):
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@asyncio.coroutine
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def test():
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a, b = self.create_bound_pair(zmq.PUSH, zmq.PULL)
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b.rcvtimeo = 100
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f1 = b.recv()
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b.rcvtimeo = 1000
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f2 = b.recv_multipart()
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with self.assertRaises(zmq.Again):
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yield from f1
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yield from a.send_multipart([b'hi', b'there'])
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recvd = yield from f2
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assert f2.done()
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self.assertEqual(recvd, [b'hi', b'there'])
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self.loop.run_until_complete(test())
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@mark.skipif(not hasattr(zmq, 'SNDTIMEO'), reason="requires SNDTIMEO")
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def test_send_timeout(self):
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@asyncio.coroutine
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def test():
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s = self.socket(zmq.PUSH)
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s.sndtimeo = 100
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with self.assertRaises(zmq.Again):
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yield from s.send(b'not going anywhere')
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self.loop.run_until_complete(test())
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def test_recv_string(self):
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@asyncio.coroutine
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def test():
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a, b = self.create_bound_pair(zmq.PUSH, zmq.PULL)
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f = b.recv_string()
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assert not f.done()
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msg = u('πøøπ')
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yield from a.send_string(msg)
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recvd = yield from f
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assert f.done()
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self.assertEqual(f.result(), msg)
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self.assertEqual(recvd, msg)
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self.loop.run_until_complete(test())
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def test_recv_json(self):
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@asyncio.coroutine
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def test():
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a, b = self.create_bound_pair(zmq.PUSH, zmq.PULL)
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f = b.recv_json()
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assert not f.done()
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obj = dict(a=5)
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yield from a.send_json(obj)
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recvd = yield from f
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assert f.done()
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self.assertEqual(f.result(), obj)
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self.assertEqual(recvd, obj)
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self.loop.run_until_complete(test())
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def test_recv_json_cancelled(self):
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@asyncio.coroutine
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def test():
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a, b = self.create_bound_pair(zmq.PUSH, zmq.PULL)
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f = b.recv_json()
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assert not f.done()
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f.cancel()
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# cycle eventloop to allow cancel events to fire
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yield from asyncio.sleep(0)
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obj = dict(a=5)
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yield from a.send_json(obj)
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# CancelledError change in 3.8 https://bugs.python.org/issue32528
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if sys.version_info < (3, 8):
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with pytest.raises(CancelledError):
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recvd = yield from f
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else:
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with pytest.raises(asyncio.exceptions.CancelledError):
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recvd = yield from f
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assert f.done()
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# give it a chance to incorrectly consume the event
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events = yield from b.poll(timeout=5)
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assert events
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yield from asyncio.sleep(0)
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# make sure cancelled recv didn't eat up event
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f = b.recv_json()
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recvd = yield from asyncio.wait_for(f, timeout=5)
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assert recvd == obj
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self.loop.run_until_complete(test())
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def test_recv_pyobj(self):
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@asyncio.coroutine
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def test():
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a, b = self.create_bound_pair(zmq.PUSH, zmq.PULL)
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f = b.recv_pyobj()
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assert not f.done()
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obj = dict(a=5)
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yield from a.send_pyobj(obj)
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recvd = yield from f
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assert f.done()
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self.assertEqual(f.result(), obj)
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self.assertEqual(recvd, obj)
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self.loop.run_until_complete(test())
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def test_custom_serialize(self):
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def serialize(msg):
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frames = []
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frames.extend(msg.get('identities', []))
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content = json.dumps(msg['content']).encode('utf8')
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frames.append(content)
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return frames
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def deserialize(frames):
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identities = frames[:-1]
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content = json.loads(frames[-1].decode('utf8'))
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return {
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'identities': identities,
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'content': content,
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}
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@asyncio.coroutine
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def test():
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a, b = self.create_bound_pair(zmq.DEALER, zmq.ROUTER)
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msg = {
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'content': {
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'a': 5,
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'b': 'bee',
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}
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}
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yield from a.send_serialized(msg, serialize)
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recvd = yield from b.recv_serialized(deserialize)
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assert recvd['content'] == msg['content']
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assert recvd['identities']
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# bounce back, tests identities
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yield from b.send_serialized(recvd, serialize)
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r2 = yield from a.recv_serialized(deserialize)
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assert r2['content'] == msg['content']
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assert not r2['identities']
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self.loop.run_until_complete(test())
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def test_custom_serialize_error(self):
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@asyncio.coroutine
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def test():
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a, b = self.create_bound_pair(zmq.DEALER, zmq.ROUTER)
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msg = {
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'content': {
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'a': 5,
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'b': 'bee',
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}
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}
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with pytest.raises(TypeError):
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yield from a.send_serialized(json, json.dumps)
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yield from a.send(b'not json')
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with pytest.raises(TypeError):
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recvd = yield from b.recv_serialized(json.loads)
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self.loop.run_until_complete(test())
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def test_recv_dontwait(self):
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@asyncio.coroutine
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def test():
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push, pull = self.create_bound_pair(zmq.PUSH, zmq.PULL)
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f = pull.recv(zmq.DONTWAIT)
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with self.assertRaises(zmq.Again):
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yield from f
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yield from push.send(b'ping')
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yield from pull.poll() # ensure message will be waiting
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f = pull.recv(zmq.DONTWAIT)
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assert f.done()
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msg = yield from f
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self.assertEqual(msg, b'ping')
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self.loop.run_until_complete(test())
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def test_recv_cancel(self):
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@asyncio.coroutine
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def test():
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a, b = self.create_bound_pair(zmq.PUSH, zmq.PULL)
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f1 = b.recv()
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f2 = b.recv_multipart()
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assert f1.cancel()
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assert f1.done()
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assert not f2.done()
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yield from a.send_multipart([b'hi', b'there'])
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recvd = yield from f2
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assert f1.cancelled()
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assert f2.done()
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self.assertEqual(recvd, [b'hi', b'there'])
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self.loop.run_until_complete(test())
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def test_poll(self):
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@asyncio.coroutine
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def test():
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a, b = self.create_bound_pair(zmq.PUSH, zmq.PULL)
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f = b.poll(timeout=0)
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yield from asyncio.sleep(0)
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self.assertEqual(f.result(), 0)
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f = b.poll(timeout=1)
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assert not f.done()
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evt = yield from f
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self.assertEqual(evt, 0)
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f = b.poll(timeout=1000)
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assert not f.done()
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yield from a.send_multipart([b'hi', b'there'])
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evt = yield from f
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self.assertEqual(evt, zmq.POLLIN)
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recvd = yield from b.recv_multipart()
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self.assertEqual(recvd, [b'hi', b'there'])
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self.loop.run_until_complete(test())
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def test_poll_base_socket(self):
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@asyncio.coroutine
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def test():
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ctx = zmq.Context()
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url = 'inproc://test'
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a = ctx.socket(zmq.PUSH)
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b = ctx.socket(zmq.PULL)
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self.sockets.extend([a, b])
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a.bind(url)
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b.connect(url)
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poller = zaio.Poller()
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poller.register(b, zmq.POLLIN)
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f = poller.poll(timeout=1000)
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assert not f.done()
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a.send_multipart([b'hi', b'there'])
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evt = yield from f
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self.assertEqual(evt, [(b, zmq.POLLIN)])
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recvd = b.recv_multipart()
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self.assertEqual(recvd, [b'hi', b'there'])
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self.loop.run_until_complete(test())
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def test_poll_on_closed_socket(self):
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@asyncio.coroutine
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def test():
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a, b = self.create_bound_pair(zmq.PUSH, zmq.PULL)
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f = b.poll(timeout=1)
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b.close()
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# The test might stall if we try to yield from f directly so instead just make a few
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# passes through the event loop to schedule and execute all callbacks
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for _ in range(5):
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yield from asyncio.sleep(0)
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if f.cancelled():
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break
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assert f.cancelled()
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self.loop.run_until_complete(test())
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@pytest.mark.skipif(
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sys.platform.startswith('win'),
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reason='Windows does not support polling on files')
|
||
|
|
def test_poll_raw(self):
|
||
|
|
@asyncio.coroutine
|
||
|
|
def test():
|
||
|
|
p = zaio.Poller()
|
||
|
|
# make a pipe
|
||
|
|
r, w = os.pipe()
|
||
|
|
r = os.fdopen(r, 'rb')
|
||
|
|
w = os.fdopen(w, 'wb')
|
||
|
|
|
||
|
|
# POLLOUT
|
||
|
|
p.register(r, zmq.POLLIN)
|
||
|
|
p.register(w, zmq.POLLOUT)
|
||
|
|
evts = yield from p.poll(timeout=1)
|
||
|
|
evts = dict(evts)
|
||
|
|
assert r.fileno() not in evts
|
||
|
|
assert w.fileno() in evts
|
||
|
|
assert evts[w.fileno()] == zmq.POLLOUT
|
||
|
|
|
||
|
|
# POLLIN
|
||
|
|
p.unregister(w)
|
||
|
|
w.write(b'x')
|
||
|
|
w.flush()
|
||
|
|
evts = yield from p.poll(timeout=1000)
|
||
|
|
evts = dict(evts)
|
||
|
|
assert r.fileno() in evts
|
||
|
|
assert evts[r.fileno()] == zmq.POLLIN
|
||
|
|
assert r.read(1) == b'x'
|
||
|
|
r.close()
|
||
|
|
w.close()
|
||
|
|
|
||
|
|
loop = asyncio.get_event_loop()
|
||
|
|
loop.run_until_complete(test())
|
||
|
|
|
||
|
|
def test_shadow(self):
|
||
|
|
@asyncio.coroutine
|
||
|
|
def test():
|
||
|
|
ctx = zmq.Context()
|
||
|
|
s = ctx.socket(zmq.PULL)
|
||
|
|
async_s = zaio.Socket(s)
|
||
|
|
assert isinstance(async_s, self.socket_class)
|
||
|
|
|
||
|
|
def test_process_teardown(self):
|
||
|
|
event_loop_policy_class = type(asyncio.get_event_loop_policy())
|
||
|
|
proc = ProcessForTeardownTest(event_loop_policy_class)
|
||
|
|
proc.start()
|
||
|
|
try:
|
||
|
|
proc.join(10) # starting new Python process may cost a lot
|
||
|
|
self.assertEqual(proc.exitcode, 0,
|
||
|
|
"Python process died with code %d" % proc.exitcode
|
||
|
|
if proc.exitcode else "process teardown hangs")
|
||
|
|
finally:
|
||
|
|
proc.terminate()
|
||
|
|
|
||
|
|
|
||
|
|
class TestAsyncioAuthentication(TestThreadAuthentication):
|
||
|
|
"""Test authentication running in a asyncio task"""
|
||
|
|
|
||
|
|
if asyncio is not None:
|
||
|
|
Context = zaio.Context
|
||
|
|
|
||
|
|
def shortDescription(self):
|
||
|
|
"""Rewrite doc strings from TestThreadAuthentication from
|
||
|
|
'threaded' to 'asyncio'.
|
||
|
|
"""
|
||
|
|
doc = self._testMethodDoc
|
||
|
|
if doc:
|
||
|
|
doc = doc.split("\n")[0].strip()
|
||
|
|
if doc.startswith('threaded auth'):
|
||
|
|
doc = doc.replace('threaded auth', 'asyncio auth')
|
||
|
|
return doc
|
||
|
|
|
||
|
|
def setUp(self):
|
||
|
|
if asyncio is None:
|
||
|
|
raise SkipTest()
|
||
|
|
self.loop = zaio.ZMQEventLoop()
|
||
|
|
asyncio.set_event_loop(self.loop)
|
||
|
|
super().setUp()
|
||
|
|
|
||
|
|
def tearDown(self):
|
||
|
|
super().tearDown()
|
||
|
|
self.loop.close()
|
||
|
|
|
||
|
|
def make_auth(self):
|
||
|
|
return AsyncioAuthenticator(self.context)
|
||
|
|
|
||
|
|
def can_connect(self, server, client):
|
||
|
|
"""Check if client can connect to server using tcp transport"""
|
||
|
|
@asyncio.coroutine
|
||
|
|
def go():
|
||
|
|
result = False
|
||
|
|
iface = 'tcp://127.0.0.1'
|
||
|
|
port = server.bind_to_random_port(iface)
|
||
|
|
client.connect("%s:%i" % (iface, port))
|
||
|
|
msg = [b"Hello World"]
|
||
|
|
yield from server.send_multipart(msg)
|
||
|
|
if (yield from client.poll(1000)):
|
||
|
|
rcvd_msg = yield from client.recv_multipart()
|
||
|
|
self.assertEqual(rcvd_msg, msg)
|
||
|
|
result = True
|
||
|
|
return result
|
||
|
|
return self.loop.run_until_complete(go())
|
||
|
|
|
||
|
|
def _select_recv(self, multipart, socket, **kwargs):
|
||
|
|
recv = socket.recv_multipart if multipart else socket.recv
|
||
|
|
@asyncio.coroutine
|
||
|
|
def coro():
|
||
|
|
if not (yield from socket.poll(5000)):
|
||
|
|
raise TimeoutError("Should have received a message")
|
||
|
|
return (yield from recv(**kwargs))
|
||
|
|
return self.loop.run_until_complete(coro())
|