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#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
#
from qpid.content import Content
from qpid.testlib import TestBase
class ExampleTest (TestBase):
"""
An example Qpid test, illustrating the unittest frameowkr and the
python Qpid client. The test class must inherit TestCase. The
test code uses the Qpid client to interact with a qpid broker and
verify it behaves as expected.
"""
def test_example(self):
"""
An example test. Note that test functions must start with 'test_'
to be recognized by the test framework.
"""
# By inheriting TestBase, self.client is automatically connected
# and self.channel is automatically opened as channel(1)
# Other channel methods mimic the protocol.
channel = self.channel
# Now we can send regular commands. If you want to see what the method
# arguments mean or what other commands are available, you can use the
# python builtin help() method. For example:
#help(chan)
#help(chan.exchange_declare)
# If you want browse the available protocol methods without being
# connected to a live server you can use the amqp-doc utility:
#
# Usage amqp-doc [<options>] <spec> [<pattern_1> ... <pattern_n>]
#
# Options:
# -e, --regexp use regex instead of glob when matching
# Now that we know what commands are available we can use them to
# interact with the server.
# Here we use ordinal arguments.
self.exchange_declare(channel, 0, "test", "direct")
# Here we use keyword arguments.
self.queue_declare(channel, queue="test-queue")
channel.queue_bind(queue="test-queue", exchange="test", routing_key="key")
# Call Channel.basic_consume to register as a consumer.
# All the protocol methods return a message object. The message object
# has fields corresponding to the reply method fields, plus a content
# field that is filled if the reply includes content. In this case the
# interesting field is the consumer_tag.
reply = channel.basic_consume(queue="test-queue")
# We can use the Client.queue(...) method to access the queue
# corresponding to our consumer_tag.
queue = self.client.queue(reply.consumer_tag)
# Now lets publish a message and see if our consumer gets it. To do
# this we need to import the Content class.
body = "Hello World!"
channel.basic_publish(exchange="test",
routing_key="key",
content=Content(body))
# Now we'll wait for the message to arrive. We can use the timeout
# argument in case the server hangs. By default queue.get() will wait
# until a message arrives or the connection to the server dies.
msg = queue.get(timeout=10)
# And check that we got the right response with assertEqual
self.assertEqual(body, msg.content.body)
# Now acknowledge the message.
channel.basic_ack(msg.delivery_tag, True)
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