import random import socket import string import sys import time import unittest2 as unittest import warnings import weakref from nose import SkipTest from kombu import Connection from kombu import Exchange, Queue from kombu.tests.utils import skip_if_quick if sys.version_info >= (2, 5): from hashlib import sha256 as _digest else: from sha import new as _digest # noqa def say(msg): sys.stderr.write(unicode(msg) + "\n") def consumeN(conn, consumer, n=1, timeout=30): messages = [] def callback(message_data, message): messages.append(message_data) message.ack() prev, consumer.callbacks = consumer.callbacks, [callback] consumer.consume() seconds = 0 while True: try: conn.drain_events(timeout=1) except socket.timeout: seconds += 1 msg = "Received %s/%s messages. %s seconds passed." % ( len(messages), n, seconds) if seconds >= timeout: raise socket.timeout(msg) if seconds > 1: say(msg) if len(messages) >= n: break consumer.cancel() consumer.callback = prev return messages class TransportCase(unittest.TestCase): transport = None prefix = None sep = '.' userid = None password = None event_loop_max = 100 connection_options = {} suppress_disorder_warning = False reliable_purge = True connected = False skip_test_reason = None message_size_limit = None def before_connect(self): pass def after_connect(self, connection): pass def setUp(self): if self.transport: try: self.before_connect() except SkipTest as exc: self.skip_test_reason = str(exc) else: self.do_connect() self.exchange = Exchange(self.prefix, "direct") self.queue = Queue(self.prefix, self.exchange, self.prefix) def purge(self, names): chan = self.connection.channel() total = 0 for queue in names: while 1: # ensure the queue is completly empty purged = chan.queue_purge(queue=queue) if not purged: break total += purged chan.close() return total def get_connection(self, **options): if self.userid: options.setdefault("userid", self.userid) if self.password: options.setdefault("password", self.password) return Connection(transport=self.transport, **options) def do_connect(self): self.connection = self.get_connection(**self.connection_options) try: self.connection.connect() self.after_connect(self.connection) except self.connection.connection_errors: self.skip_test_reason = "%s transport can't connect" % ( self.transport, ) else: self.connected = True def verify_alive(self): if self.transport: if not self.connected: raise SkipTest(self.skip_test_reason) return True def purge_consumer(self, consumer): return self.purge([queue.name for queue in consumer.queues]) def test_produce__consume(self): if not self.verify_alive(): return chan1 = self.connection.channel() consumer = chan1.Consumer(self.queue) self.purge_consumer(consumer) producer = chan1.Producer(self.exchange) producer.publish({"foo": "bar"}, routing_key=self.prefix) message = consumeN(self.connection, consumer) self.assertDictEqual(message[0], {"foo": "bar"}) chan1.close() self.purge([self.queue.name]) def test_purge(self): if not self.verify_alive(): return chan1 = self.connection.channel() consumer = chan1.Consumer(self.queue) self.purge_consumer(consumer) producer = chan1.Producer(self.exchange) for i in xrange(10): producer.publish({"foo": "bar"}, routing_key=self.prefix) if self.reliable_purge: self.assertEqual(consumer.purge(), 10) self.assertEqual(consumer.purge(), 0) else: purged = 0 while purged < 9: purged += self.purge_consumer(consumer) def _digest(self, data): return _digest(data).hexdigest() @skip_if_quick def test_produce__consume_large_messages(self, bytes=1048576, n=10, charset=string.punctuation + string.letters + string.digits): if not self.verify_alive(): return bytes = min(filter(None, [bytes, self.message_size_limit])) messages = ["".join(random.choice(charset) for j in xrange(bytes)) + "--%s" % n for i in xrange(n)] digests = [] chan1 = self.connection.channel() consumer = chan1.Consumer(self.queue) self.purge_consumer(consumer) producer = chan1.Producer(self.exchange) for i, message in enumerate(messages): producer.publish({"text": message, "i": i}, routing_key=self.prefix) digests.append(self._digest(message)) received = [(msg["i"], msg["text"]) for msg in consumeN(self.connection, consumer, n)] self.assertEqual(len(received), n) ordering = [i for i, _ in received] if ordering != range(n) and not self.suppress_disorder_warning: warnings.warn( "%s did not deliver messages in FIFO order: %r" % ( self.transport, ordering)) for i, text in received: if text != messages[i]: raise AssertionError("%i: %r is not %r" % ( i, text[-100:], messages[i][-100:])) self.assertEqual(self._digest(text), digests[i]) chan1.close() self.purge([self.queue.name]) def P(self, rest): return "%s%s%s" % (self.prefix, self.sep, rest) def test_produce__consume_multiple(self): if not self.verify_alive(): return chan1 = self.connection.channel() producer = chan1.Producer(self.exchange) b1 = Queue(self.P("b1"), self.exchange, "b1")(chan1) b2 = Queue(self.P("b2"), self.exchange, "b2")(chan1) b3 = Queue(self.P("b3"), self.exchange, "b3")(chan1) [q.declare() for q in (b1, b2, b3)] self.purge([b1.name, b2.name, b3.name]) producer.publish("b1", routing_key="b1") producer.publish("b2", routing_key="b2") producer.publish("b3", routing_key="b3") chan1.close() chan2 = self.connection.channel() consumer = chan2.Consumer([b1, b2, b3]) messages = consumeN(self.connection, consumer, 3) self.assertItemsEqual(messages, ["b1", "b2", "b3"]) chan2.close() self.purge([self.P("b1"), self.P("b2"), self.P("b3")]) def test_timeout(self): if not self.verify_alive(): return chan = self.connection.channel() self.purge([self.queue.name]) consumer = chan.Consumer(self.queue) self.assertRaises(socket.timeout, self.connection.drain_events, timeout=0.3) consumer.cancel() chan.close() def test_basic_get(self): if not self.verify_alive(): return chan1 = self.connection.channel() producer = chan1.Producer(self.exchange) chan2 = self.connection.channel() queue = Queue(self.P("basic_get"), self.exchange, "basic_get") queue = queue(chan2) queue.declare() producer.publish({"basic.get": "this"}, routing_key="basic_get") chan1.close() for i in range(self.event_loop_max): m = queue.get() if m: break time.sleep(0.1) self.assertEqual(m.payload, {"basic.get": "this"}) self.purge([queue.name]) chan2.close() def test_cyclic_reference_transport(self): if not self.verify_alive(): return def _createref(): conn = self.get_connection() conn.transport conn.close() return weakref.ref(conn) self.assertIsNone(_createref()()) def test_cyclic_reference_connection(self): if not self.verify_alive(): return def _createref(): conn = self.get_connection() conn.connect() conn.close() return weakref.ref(conn) self.assertIsNone(_createref()()) def test_cyclic_reference_channel(self): if not self.verify_alive(): return def _createref(): conn = self.get_connection() conn.connect() chanrefs = [] try: for i in xrange(100): channel = conn.channel() chanrefs.append(weakref.ref(channel)) channel.close() finally: conn.close() return chanrefs for chanref in _createref(): self.assertIsNone(chanref()) def tearDown(self): if self.transport and self.connected: self.connection.close()