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#!/usr/bin/env python
"""
Test amqp.channel module
"""
# Copyright (C) 2007-2008 Barry Pederson <bp@barryp.org>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
import sys
import unittest
import settings
from amqp import ChannelError, Connection, Message, FrameSyntaxError
class TestChannel(unittest.TestCase):
def setUp(self):
self.conn = Connection(**settings.connect_args)
self.ch = self.conn.channel()
def tearDown(self):
self.ch.close()
self.conn.close()
def test_defaults(self):
"""Test how a queue defaults to being bound to an AMQP default
exchange, and how publishing defaults to the default exchange, and
basic_get defaults to getting from the most recently declared queue,
and queue_delete defaults to deleting the most recently declared
queue."""
msg = Message(
'funtest message',
content_type='text/plain',
application_headers={'foo': 7, 'bar': 'baz'},
)
qname, _, _ = self.ch.queue_declare()
self.ch.basic_publish(msg, routing_key=qname)
msg2 = self.ch.basic_get(no_ack=True)
self.assertEqual(msg, msg2)
n = self.ch.queue_purge()
self.assertEqual(n, 0)
n = self.ch.queue_delete()
self.assertEqual(n, 0)
def test_encoding(self):
my_routing_key = 'funtest.test_queue'
qname, _, _ = self.ch.queue_declare()
self.ch.queue_bind(qname, 'amq.direct', routing_key=my_routing_key)
#
# No encoding, body passed through unchanged
#
msg = Message('hello world')
self.ch.basic_publish(msg, 'amq.direct', routing_key=my_routing_key)
msg2 = self.ch.basic_get(qname, no_ack=True)
if sys.version_info[0] < 3:
self.assertFalse(hasattr(msg2, 'content_encoding'))
self.assertTrue(isinstance(msg2.body, str))
self.assertEqual(msg2.body, 'hello world')
#
# Default UTF-8 encoding of unicode body, returned as unicode
#
msg = Message(u'hello world')
self.ch.basic_publish(msg, 'amq.direct', routing_key=my_routing_key)
msg2 = self.ch.basic_get(qname, no_ack=True)
self.assertEqual(msg2.content_encoding, 'UTF-8')
self.assertTrue(isinstance(msg2.body, unicode))
self.assertEqual(msg2.body, u'hello world')
#
# Explicit latin_1 encoding, still comes back as unicode
#
msg = Message(u'hello world', content_encoding='latin_1')
self.ch.basic_publish(msg, 'amq.direct', routing_key=my_routing_key)
msg2 = self.ch.basic_get(qname, no_ack=True)
self.assertEqual(msg2.content_encoding, 'latin_1')
self.assertTrue(isinstance(msg2.body, unicode))
self.assertEqual(msg2.body, u'hello world')
#
# Plain string with specified encoding comes back as unicode
#
msg = Message('hello w\xf6rld', content_encoding='latin_1')
self.ch.basic_publish(msg, 'amq.direct', routing_key=my_routing_key)
msg2 = self.ch.basic_get(qname, no_ack=True)
self.assertEqual(msg2.content_encoding, 'latin_1')
self.assertTrue(isinstance(msg2.body, unicode))
self.assertEqual(msg2.body, u'hello w\u00f6rld')
#
# Plain string (bytes in Python 3.x) with bogus encoding
#
# don't really care about latin_1, just want bytes
test_bytes = u'hello w\xd6rld'.encode('latin_1')
msg = Message(test_bytes, content_encoding='I made this up')
self.ch.basic_publish(msg, 'amq.direct', routing_key=my_routing_key)
msg2 = self.ch.basic_get(qname, no_ack=True)
self.assertEqual(msg2.content_encoding, 'I made this up')
self.assertTrue(isinstance(msg2.body, bytes))
self.assertEqual(msg2.body, test_bytes)
#
# Turn off auto_decode for remaining tests
#
self.ch.auto_decode = False
#
# Unicode body comes back as utf-8 encoded str
#
msg = Message(u'hello w\u00f6rld')
self.ch.basic_publish(msg, 'amq.direct', routing_key=my_routing_key)
msg2 = self.ch.basic_get(qname, no_ack=True)
self.assertEqual(msg2.content_encoding, 'UTF-8')
self.assertTrue(isinstance(msg2.body, bytes))
self.assertEqual(msg2.body, u'hello w\xc3\xb6rld'.encode('latin_1'))
#
# Plain string with specified encoding stays plain string
#
msg = Message('hello w\xf6rld', content_encoding='latin_1')
self.ch.basic_publish(msg, 'amq.direct', routing_key=my_routing_key)
msg2 = self.ch.basic_get(qname, no_ack=True)
self.assertEqual(msg2.content_encoding, 'latin_1')
self.assertTrue(isinstance(msg2.body, bytes))
self.assertEqual(msg2.body, u'hello w\xf6rld'.encode('latin_1'))
#
# Explicit latin_1 encoding, comes back as str
#
msg = Message(u'hello w\u00f6rld', content_encoding='latin_1')
self.ch.basic_publish(msg, 'amq.direct', routing_key=my_routing_key)
msg2 = self.ch.basic_get(qname, no_ack=True)
self.assertEqual(msg2.content_encoding, 'latin_1')
self.assertTrue(isinstance(msg2.body, bytes))
self.assertEqual(msg2.body, u'hello w\xf6rld'.encode('latin_1'))
def test_queue_delete_empty(self):
self.assertFalse(
self.ch.queue_delete('bogus_queue_that_does_not_exist')
)
def test_survives_channel_error(self):
with self.assertRaises(ChannelError):
self.ch.queue_declare('krjqheewq_bogus', passive=True)
self.ch.queue_declare('funtest_survive')
self.ch.queue_declare('funtest_survive', passive=True)
self.assertEqual(
0, self.ch.queue_delete('funtest_survive'),
)
def test_invalid_header(self):
"""
Test sending a message with an unserializable object in the header
http://code.google.com/p/py-amqplib/issues/detail?id=17
"""
qname, _, _ = self.ch.queue_declare()
msg = Message(application_headers={'test': object()})
self.assertRaises(
FrameSyntaxError, self.ch.basic_publish, msg, routing_key=qname,
)
def test_large(self):
"""
Test sending some extra large messages.
"""
qname, _, _ = self.ch.queue_declare()
for multiplier in [100, 1000, 10000]:
msg = Message(
'funtest message' * multiplier,
content_type='text/plain',
application_headers={'foo': 7, 'bar': 'baz'},
)
self.ch.basic_publish(msg, routing_key=qname)
msg2 = self.ch.basic_get(no_ack=True)
self.assertEqual(msg, msg2)
def test_publish(self):
self.ch.exchange_declare('funtest.fanout', 'fanout', auto_delete=True)
msg = Message(
'funtest message',
content_type='text/plain',
application_headers={'foo': 7, 'bar': 'baz'},
)
self.ch.basic_publish(msg, 'funtest.fanout')
def test_queue(self):
my_routing_key = 'funtest.test_queue'
msg = Message(
'funtest message',
content_type='text/plain',
application_headers={'foo': 7, 'bar': 'baz'},
)
qname, _, _ = self.ch.queue_declare()
self.ch.queue_bind(qname, 'amq.direct', routing_key=my_routing_key)
self.ch.basic_publish(msg, 'amq.direct', routing_key=my_routing_key)
msg2 = self.ch.basic_get(qname, no_ack=True)
self.assertEqual(msg, msg2)
def test_unbind(self):
my_routing_key = 'funtest.test_queue'
qname, _, _ = self.ch.queue_declare()
self.ch.queue_bind(qname, 'amq.direct', routing_key=my_routing_key)
self.ch.queue_unbind(qname, 'amq.direct', routing_key=my_routing_key)
def test_basic_return(self):
self.ch.exchange_declare('funtest.fanout', 'fanout', auto_delete=True)
msg = Message(
'funtest message',
content_type='text/plain',
application_headers={'foo': 7, 'bar': 'baz'})
self.ch.basic_publish(msg, 'funtest.fanout')
self.ch.basic_publish(msg, 'funtest.fanout', mandatory=True)
self.ch.basic_publish(msg, 'funtest.fanout', mandatory=True)
self.ch.basic_publish(msg, 'funtest.fanout', mandatory=True)
self.ch.close()
#
# 3 of the 4 messages we sent should have been returned
#
self.assertEqual(self.ch.returned_messages.qsize(), 3)
def test_exchange_bind(self):
"""Test exchange binding.
Network configuration is as follows (-> is forwards to :
source_exchange -> dest_exchange -> queue
The test checks that once the message is publish to the
destination exchange(funtest.topic_dest) it is delivered to the queue.
"""
test_routing_key = 'unit_test__key'
dest_exchange = 'funtest.topic_dest_bind'
source_exchange = 'funtest.topic_source_bind'
self.ch.exchange_declare(dest_exchange, 'topic', auto_delete=True)
self.ch.exchange_declare(source_exchange, 'topic', auto_delete=True)
qname, _, _ = self.ch.queue_declare()
self.ch.exchange_bind(destination=dest_exchange,
source=source_exchange,
routing_key=test_routing_key)
self.ch.queue_bind(qname, dest_exchange,
routing_key=test_routing_key)
msg = Message('funtest message',
content_type='text/plain',
application_headers={'foo': 7, 'bar': 'baz'})
self.ch.basic_publish(msg, source_exchange,
routing_key=test_routing_key)
msg2 = self.ch.basic_get(qname, no_ack=True)
self.assertEqual(msg, msg2)
def test_exchange_unbind(self):
dest_exchange = 'funtest.topic_dest_unbind'
source_exchange = 'funtest.topic_source_unbind'
test_routing_key = 'unit_test__key'
self.ch.exchange_declare(dest_exchange,
'topic', auto_delete=True)
self.ch.exchange_declare(source_exchange,
'topic', auto_delete=True)
self.ch.exchange_bind(destination=dest_exchange,
source=source_exchange,
routing_key=test_routing_key)
self.ch.exchange_unbind(destination=dest_exchange,
source=source_exchange,
routing_key=test_routing_key)
def main():
suite = unittest.TestLoader().loadTestsFromTestCase(TestChannel)
unittest.TextTestRunner(**settings.test_args).run(suite)
if __name__ == '__main__':
main()
|
