# Copyright (C) PyZMQ Developers # Distributed under the terms of the Modified BSD License. import time from unittest import TestCase import zmq from zmq import devices from zmq.tests import BaseZMQTestCase, SkipTest, PYPY from zmq.utils.strtypes import unicode if PYPY or zmq.zmq_version_info() >= (4,1): # cleanup of shared Context doesn't work on PyPy # there also seems to be a bug in cleanup in libzmq-4.1 (zeromq/libzmq#1052) devices.Device.context_factory = zmq.Context class TestMonitoredQueue(BaseZMQTestCase): sockets = [] def build_device(self, mon_sub=b"", in_prefix=b'in', out_prefix=b'out'): self.device = devices.ThreadMonitoredQueue(zmq.PAIR, zmq.PAIR, zmq.PUB, in_prefix, out_prefix) alice = self.context.socket(zmq.PAIR) bob = self.context.socket(zmq.PAIR) mon = self.context.socket(zmq.SUB) aport = alice.bind_to_random_port('tcp://127.0.0.1') bport = bob.bind_to_random_port('tcp://127.0.0.1') mport = mon.bind_to_random_port('tcp://127.0.0.1') mon.setsockopt(zmq.SUBSCRIBE, mon_sub) self.device.connect_in("tcp://127.0.0.1:%i"%aport) self.device.connect_out("tcp://127.0.0.1:%i"%bport) self.device.connect_mon("tcp://127.0.0.1:%i"%mport) self.device.start() time.sleep(.2) try: # this is currenlty necessary to ensure no dropped monitor messages # see LIBZMQ-248 for more info mon.recv_multipart(zmq.NOBLOCK) except zmq.ZMQError: pass self.sockets.extend([alice, bob, mon]) return alice, bob, mon def teardown_device(self): for socket in self.sockets: socket.close() del socket del self.device def test_reply(self): alice, bob, mon = self.build_device() alices = b"hello bob".split() alice.send_multipart(alices) bobs = self.recv_multipart(bob) self.assertEqual(alices, bobs) bobs = b"hello alice".split() bob.send_multipart(bobs) alices = self.recv_multipart(alice) self.assertEqual(alices, bobs) self.teardown_device() def test_queue(self): alice, bob, mon = self.build_device() alices = b"hello bob".split() alice.send_multipart(alices) alices2 = b"hello again".split() alice.send_multipart(alices2) alices3 = b"hello again and again".split() alice.send_multipart(alices3) bobs = self.recv_multipart(bob) self.assertEqual(alices, bobs) bobs = self.recv_multipart(bob) self.assertEqual(alices2, bobs) bobs = self.recv_multipart(bob) self.assertEqual(alices3, bobs) bobs = b"hello alice".split() bob.send_multipart(bobs) alices = self.recv_multipart(alice) self.assertEqual(alices, bobs) self.teardown_device() def test_monitor(self): alice, bob, mon = self.build_device() alices = b"hello bob".split() alice.send_multipart(alices) alices2 = b"hello again".split() alice.send_multipart(alices2) alices3 = b"hello again and again".split() alice.send_multipart(alices3) bobs = self.recv_multipart(bob) self.assertEqual(alices, bobs) mons = self.recv_multipart(mon) self.assertEqual([b'in']+bobs, mons) bobs = self.recv_multipart(bob) self.assertEqual(alices2, bobs) bobs = self.recv_multipart(bob) self.assertEqual(alices3, bobs) mons = self.recv_multipart(mon) self.assertEqual([b'in']+alices2, mons) bobs = b"hello alice".split() bob.send_multipart(bobs) alices = self.recv_multipart(alice) self.assertEqual(alices, bobs) mons = self.recv_multipart(mon) self.assertEqual([b'in']+alices3, mons) mons = self.recv_multipart(mon) self.assertEqual([b'out']+bobs, mons) self.teardown_device() def test_prefix(self): alice, bob, mon = self.build_device(b"", b'foo', b'bar') alices = b"hello bob".split() alice.send_multipart(alices) alices2 = b"hello again".split() alice.send_multipart(alices2) alices3 = b"hello again and again".split() alice.send_multipart(alices3) bobs = self.recv_multipart(bob) self.assertEqual(alices, bobs) mons = self.recv_multipart(mon) self.assertEqual([b'foo']+bobs, mons) bobs = self.recv_multipart(bob) self.assertEqual(alices2, bobs) bobs = self.recv_multipart(bob) self.assertEqual(alices3, bobs) mons = self.recv_multipart(mon) self.assertEqual([b'foo']+alices2, mons) bobs = b"hello alice".split() bob.send_multipart(bobs) alices = self.recv_multipart(alice) self.assertEqual(alices, bobs) mons = self.recv_multipart(mon) self.assertEqual([b'foo']+alices3, mons) mons = self.recv_multipart(mon) self.assertEqual([b'bar']+bobs, mons) self.teardown_device() def test_monitor_subscribe(self): alice, bob, mon = self.build_device(b"out") alices = b"hello bob".split() alice.send_multipart(alices) alices2 = b"hello again".split() alice.send_multipart(alices2) alices3 = b"hello again and again".split() alice.send_multipart(alices3) bobs = self.recv_multipart(bob) self.assertEqual(alices, bobs) bobs = self.recv_multipart(bob) self.assertEqual(alices2, bobs) bobs = self.recv_multipart(bob) self.assertEqual(alices3, bobs) bobs = b"hello alice".split() bob.send_multipart(bobs) alices = self.recv_multipart(alice) self.assertEqual(alices, bobs) mons = self.recv_multipart(mon) self.assertEqual([b'out']+bobs, mons) self.teardown_device() def test_router_router(self): """test router-router MQ devices""" dev = devices.ThreadMonitoredQueue(zmq.ROUTER, zmq.ROUTER, zmq.PUB, b'in', b'out') self.device = dev dev.setsockopt_in(zmq.LINGER, 0) dev.setsockopt_out(zmq.LINGER, 0) dev.setsockopt_mon(zmq.LINGER, 0) porta = dev.bind_in_to_random_port('tcp://127.0.0.1') portb = dev.bind_out_to_random_port('tcp://127.0.0.1') a = self.context.socket(zmq.DEALER) a.identity = b'a' b = self.context.socket(zmq.DEALER) b.identity = b'b' self.sockets.extend([a, b]) a.connect('tcp://127.0.0.1:%i'%porta) b.connect('tcp://127.0.0.1:%i'%portb) dev.start() time.sleep(1) if zmq.zmq_version_info() >= (3,1,0): # flush erroneous poll state, due to LIBZMQ-280 ping_msg = [ b'ping', b'pong' ] for s in (a,b): s.send_multipart(ping_msg) try: s.recv(zmq.NOBLOCK) except zmq.ZMQError: pass msg = [ b'hello', b'there' ] a.send_multipart([b'b']+msg) bmsg = self.recv_multipart(b) self.assertEqual(bmsg, [b'a']+msg) b.send_multipart(bmsg) amsg = self.recv_multipart(a) self.assertEqual(amsg, [b'b']+msg) self.teardown_device() def test_default_mq_args(self): self.device = dev = devices.ThreadMonitoredQueue(zmq.ROUTER, zmq.DEALER, zmq.PUB) dev.setsockopt_in(zmq.LINGER, 0) dev.setsockopt_out(zmq.LINGER, 0) dev.setsockopt_mon(zmq.LINGER, 0) # this will raise if default args are wrong dev.start() self.teardown_device() def test_mq_check_prefix(self): ins = self.context.socket(zmq.ROUTER) outs = self.context.socket(zmq.DEALER) mons = self.context.socket(zmq.PUB) self.sockets.extend([ins, outs, mons]) ins = unicode('in') outs = unicode('out') self.assertRaises(TypeError, devices.monitoredqueue, ins, outs, mons)