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#
# Copyright (c) 2006 The Apache Software Foundation
#
# Licensed 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.client import Client, Closed
from qpid.queue import Empty
from qpid.content import Content
from qpid.testlib import testrunner, TestBase
class TxTests(TestBase):
"""
Tests for 'methods' on the amqp tx 'class'
"""
def test_commit(self):
"""
Test that commited publishes are delivered and commited acks are not re-delivered
"""
channel = self.channel
queue_a, queue_b, queue_c = self.perform_txn_work(channel, "tx-commit-a", "tx-commit-b", "tx-commit-c")
channel.tx_commit()
#check results
for i in range(1, 5):
msg = queue_c.get(timeout=1)
self.assertEqual("TxMessage %d" % i, msg.content.body)
msg = queue_b.get(timeout=1)
self.assertEqual("TxMessage 6", msg.content.body)
msg = queue_a.get(timeout=1)
self.assertEqual("TxMessage 7", msg.content.body)
for q in [queue_a, queue_b, queue_c]:
try:
extra = q.get(timeout=1)
self.fail("Got unexpected message: " + extra.content.body)
except Empty: None
#cleanup
channel.basic_ack(delivery_tag=0, multiple=True)
channel.tx_commit()
def test_rollback(self):
"""
Test that rolled back publishes are not delivered and rolled back acks are re-delivered
"""
channel = self.channel
queue_a, queue_b, queue_c = self.perform_txn_work(channel, "tx-rollback-a", "tx-rollback-b", "tx-rollback-c")
for q in [queue_a, queue_b, queue_c]:
try:
extra = q.get(timeout=1)
self.fail("Got unexpected message: " + extra.content.body)
except Empty: None
channel.tx_rollback()
#check results
for i in range(1, 5):
msg = queue_a.get(timeout=1)
self.assertEqual("Message %d" % i, msg.content.body)
msg = queue_b.get(timeout=1)
self.assertEqual("Message 6", msg.content.body)
msg = queue_c.get(timeout=1)
self.assertEqual("Message 7", msg.content.body)
for q in [queue_a, queue_b, queue_c]:
try:
extra = q.get(timeout=1)
self.fail("Got unexpected message: " + extra.content.body)
except Empty: None
#cleanup
channel.basic_ack(delivery_tag=0, multiple=True)
channel.tx_commit()
def perform_txn_work(self, channel, name_a, name_b, name_c):
"""
Utility method that does some setup and some work under a transaction. Used for testing both
commit and rollback
"""
#setup:
channel.queue_declare(queue=name_a, exclusive=True)
channel.queue_declare(queue=name_b, exclusive=True)
channel.queue_declare(queue=name_c, exclusive=True)
key = "my_key_" + name_b
topic = "my_topic_" + name_c
channel.queue_bind(queue=name_b, exchange="amq.direct", routing_key=key)
channel.queue_bind(queue=name_c, exchange="amq.topic", routing_key=topic)
for i in range(1, 5):
channel.basic_publish(routing_key=name_a, content=Content("Message %d" % i))
channel.basic_publish(routing_key=key, exchange="amq.direct", content=Content("Message 6"))
channel.basic_publish(routing_key=topic, exchange="amq.topic", content=Content("Message 7"))
channel.tx_select()
#consume and ack messages
sub_a = channel.basic_consume(queue=name_a, no_ack=False)
queue_a = self.client.queue(sub_a.consumer_tag)
for i in range(1, 5):
msg = queue_a.get(timeout=1)
self.assertEqual("Message %d" % i, msg.content.body)
channel.basic_ack(delivery_tag=msg.delivery_tag, multiple=True)
sub_b = channel.basic_consume(queue=name_b, no_ack=False)
queue_b = self.client.queue(sub_b.consumer_tag)
msg = queue_b.get(timeout=1)
self.assertEqual("Message 6", msg.content.body)
channel.basic_ack(delivery_tag=msg.delivery_tag)
sub_c = channel.basic_consume(queue=name_c, no_ack=False)
queue_c = self.client.queue(sub_c.consumer_tag)
msg = queue_c.get(timeout=1)
self.assertEqual("Message 7", msg.content.body)
channel.basic_ack(delivery_tag=msg.delivery_tag)
#publish messages
for i in range(1, 5):
channel.basic_publish(routing_key=topic, exchange="amq.topic", content=Content("TxMessage %d" % i))
channel.basic_publish(routing_key=key, exchange="amq.direct", content=Content("TxMessage 6"))
channel.basic_publish(routing_key=name_a, content=Content("TxMessage 7"))
return queue_a, queue_b, queue_c
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