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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.client import Client, Closed
+from qpid.queue import Empty
+from qpid.testlib import TestBase010
+from qpid.datatypes import Message
+from qpid.session import SessionException
+
+class QueueTests(TestBase010):
+ """Tests for 'methods' on the amqp queue 'class'"""
+
+ def test_purge(self):
+ """
+ Test that the purge method removes messages from the queue
+ """
+ session = self.session
+ #setup, declare a queue and add some messages to it:
+ session.queue_declare(queue="test-queue", exclusive=True, auto_delete=True)
+ session.message_transfer(message=Message(session.delivery_properties(routing_key="test-queue"), "one"))
+ session.message_transfer(message=Message(session.delivery_properties(routing_key="test-queue"), "two"))
+ session.message_transfer(message=Message(session.delivery_properties(routing_key="test-queue"), "three"))
+
+ #check that the queue now reports 3 messages:
+ session.queue_declare(queue="test-queue")
+ reply = session.queue_query(queue="test-queue")
+ self.assertEqual(3, reply.message_count)
+
+ #now do the purge, then test that three messages are purged and the count drops to 0
+ session.queue_purge(queue="test-queue");
+ reply = session.queue_query(queue="test-queue")
+ self.assertEqual(0, reply.message_count)
+
+ #send a further message and consume it, ensuring that the other messages are really gone
+ session.message_transfer(message=Message(session.delivery_properties(routing_key="test-queue"), "four"))
+ session.message_subscribe(queue="test-queue", destination="tag")
+ session.message_flow(destination="tag", unit=session.credit_unit.message, value=0xFFFFFFFFL)
+ session.message_flow(destination="tag", unit=session.credit_unit.byte, value=0xFFFFFFFFL)
+ queue = session.incoming("tag")
+ msg = queue.get(timeout=1)
+ self.assertEqual("four", msg.body)
+
+ def test_purge_queue_exists(self):
+ """
+ Test that the correct exception is thrown is no queue exists
+ for the name specified in purge
+ """
+ session = self.session
+ try:
+ #queue specified but doesn't exist:
+ session.queue_purge(queue="invalid-queue")
+ self.fail("Expected failure when purging non-existent queue")
+ except SessionException, e:
+ self.assertEquals(404, e.args[0].error_code) #not-found
+
+ def test_purge_empty_name(self):
+ """
+ Test that the correct exception is thrown is no queue name
+ is specified for purge
+ """
+ session = self.session
+ try:
+ #queue not specified and none previously declared for channel:
+ session.queue_purge()
+ self.fail("Expected failure when purging unspecified queue")
+ except SessionException, e:
+ self.assertEquals(531, e.args[0].error_code) #illegal-argument
+
+ def test_declare_exclusive(self):
+ """
+ Test that the exclusive field is honoured in queue.declare
+ """
+ # TestBase.setUp has already opened session(1)
+ s1 = self.session
+ # Here we open a second separate connection:
+ s2 = self.conn.session("other")
+
+ #declare an exclusive queue:
+ s1.queue_declare(queue="exclusive-queue", exclusive=True, auto_delete=True)
+ try:
+ #other connection should not be allowed to declare this:
+ s2.queue_declare(queue="exclusive-queue", exclusive=True, auto_delete=True)
+ self.fail("Expected second exclusive queue_declare to raise a channel exception")
+ except SessionException, e:
+ self.assertEquals(405, e.args[0].error_code)
+
+ s3 = self.conn.session("subscriber")
+ try:
+ #other connection should not be allowed to declare this:
+ s3.message_subscribe(queue="exclusive-queue")
+ self.fail("Expected message_subscribe on an exclusive queue to raise a channel exception")
+ except SessionException, e:
+ self.assertEquals(405, e.args[0].error_code)
+
+ s4 = self.conn.session("deleter")
+ try:
+ #other connection should not be allowed to declare this:
+ s4.queue_delete(queue="exclusive-queue")
+ self.fail("Expected queue_delete on an exclusive queue to raise a channel exception")
+ except SessionException, e:
+ self.assertEquals(405, e.args[0].error_code)
+
+ def test_declare_passive(self):
+ """
+ Test that the passive field is honoured in queue.declare
+ """
+ session = self.session
+ #declare an exclusive queue:
+ session.queue_declare(queue="passive-queue-1", exclusive=True, auto_delete=True)
+ session.queue_declare(queue="passive-queue-1", passive=True)
+ try:
+ #other connection should not be allowed to declare this:
+ session.queue_declare(queue="passive-queue-2", passive=True)
+ self.fail("Expected passive declaration of non-existant queue to raise a channel exception")
+ except SessionException, e:
+ self.assertEquals(404, e.args[0].error_code) #not-found
+
+
+ def test_bind(self):
+ """
+ Test various permutations of the queue.bind method+
+ """
+ session = self.session
+ session.queue_declare(queue="queue-1", exclusive=True, auto_delete=True)
+
+ #straightforward case, both exchange & queue exist so no errors expected:
+ session.exchange_bind(queue="queue-1", exchange="amq.direct", binding_key="key1")
+
+ #use the queue name where the routing key is not specified:
+ session.exchange_bind(queue="queue-1", exchange="amq.direct")
+
+ #try and bind to non-existant exchange
+ try:
+ session.exchange_bind(queue="queue-1", exchange="an-invalid-exchange", binding_key="key1")
+ self.fail("Expected bind to non-existant exchange to fail")
+ except SessionException, e:
+ self.assertEquals(404, e.args[0].error_code)
+
+
+ def test_bind_queue_existence(self):
+ session = self.session
+ #try and bind non-existant queue:
+ try:
+ session.exchange_bind(queue="queue-2", exchange="amq.direct", binding_key="key1")
+ self.fail("Expected bind of non-existant queue to fail")
+ except SessionException, e:
+ self.assertEquals(404, e.args[0].error_code)
+
+ def test_unbind_direct(self):
+ self.unbind_test(exchange="amq.direct", routing_key="key")
+
+ def test_unbind_topic(self):
+ self.unbind_test(exchange="amq.topic", routing_key="key")
+
+ def test_unbind_fanout(self):
+ self.unbind_test(exchange="amq.fanout")
+
+ def test_unbind_headers(self):
+ self.unbind_test(exchange="amq.match", args={ "x-match":"all", "a":"b"}, headers={"a":"b"})
+
+ def unbind_test(self, exchange, routing_key="", args=None, headers=None):
+ #bind two queues and consume from them
+ session = self.session
+
+ session.queue_declare(queue="queue-1", exclusive=True, auto_delete=True)
+ session.queue_declare(queue="queue-2", exclusive=True, auto_delete=True)
+
+ session.message_subscribe(queue="queue-1", destination="queue-1")
+ session.message_flow(destination="queue-1", unit=session.credit_unit.message, value=0xFFFFFFFFL)
+ session.message_flow(destination="queue-1", unit=session.credit_unit.byte, value=0xFFFFFFFFL)
+ session.message_subscribe(queue="queue-2", destination="queue-2")
+ session.message_flow(destination="queue-2", unit=session.credit_unit.message, value=0xFFFFFFFFL)
+ session.message_flow(destination="queue-2", unit=session.credit_unit.byte, value=0xFFFFFFFFL)
+
+ queue1 = session.incoming("queue-1")
+ queue2 = session.incoming("queue-2")
+
+ session.exchange_bind(exchange=exchange, queue="queue-1", binding_key=routing_key, arguments=args)
+ session.exchange_bind(exchange=exchange, queue="queue-2", binding_key=routing_key, arguments=args)
+
+ dp = session.delivery_properties(routing_key=routing_key)
+ if (headers):
+ mp = session.message_properties(application_headers=headers)
+ msg1 = Message(dp, mp, "one")
+ msg2 = Message(dp, mp, "two")
+ else:
+ msg1 = Message(dp, "one")
+ msg2 = Message(dp, "two")
+
+ #send a message that will match both bindings
+ session.message_transfer(destination=exchange, message=msg1)
+
+ #unbind first queue
+ session.exchange_unbind(exchange=exchange, queue="queue-1", binding_key=routing_key)
+
+ #send another message
+ session.message_transfer(destination=exchange, message=msg2)
+
+ #check one queue has both messages and the other has only one
+ self.assertEquals("one", queue1.get(timeout=1).body)
+ try:
+ msg = queue1.get(timeout=1)
+ self.fail("Got extra message: %s" % msg.body)
+ except Empty: pass
+
+ self.assertEquals("one", queue2.get(timeout=1).body)
+ self.assertEquals("two", queue2.get(timeout=1).body)
+ try:
+ msg = queue2.get(timeout=1)
+ self.fail("Got extra message: " + msg)
+ except Empty: pass
+
+
+ def test_delete_simple(self):
+ """
+ Test core queue deletion behaviour
+ """
+ session = self.session
+
+ #straight-forward case:
+ session.queue_declare(queue="delete-me")
+ session.message_transfer(message=Message(session.delivery_properties(routing_key="delete-me"), "a"))
+ session.message_transfer(message=Message(session.delivery_properties(routing_key="delete-me"), "b"))
+ session.message_transfer(message=Message(session.delivery_properties(routing_key="delete-me"), "c"))
+ session.queue_delete(queue="delete-me")
+ #check that it has gone by declaring passively
+ try:
+ session.queue_declare(queue="delete-me", passive=True)
+ self.fail("Queue has not been deleted")
+ except SessionException, e:
+ self.assertEquals(404, e.args[0].error_code)
+
+ def test_delete_queue_exists(self):
+ """
+ Test core queue deletion behaviour
+ """
+ #check attempted deletion of non-existant queue is handled correctly:
+ session = self.session
+ try:
+ session.queue_delete(queue="i-dont-exist", if_empty=True)
+ self.fail("Expected delete of non-existant queue to fail")
+ except SessionException, e:
+ self.assertEquals(404, e.args[0].error_code)
+
+
+
+ def test_delete_ifempty(self):
+ """
+ Test that if_empty field of queue_delete is honoured
+ """
+ session = self.session
+
+ #create a queue and add a message to it (use default binding):
+ session.queue_declare(queue="delete-me-2")
+ session.queue_declare(queue="delete-me-2", passive=True)
+ session.message_transfer(message=Message(session.delivery_properties(routing_key="delete-me-2"), "message"))
+
+ #try to delete, but only if empty:
+ try:
+ session.queue_delete(queue="delete-me-2", if_empty=True)
+ self.fail("Expected delete if_empty to fail for non-empty queue")
+ except SessionException, e:
+ self.assertEquals(406, e.args[0].error_code)
+
+ #need new session now:
+ session = self.conn.session("replacement", 2)
+
+ #empty queue:
+ session.message_subscribe(destination="consumer_tag", queue="delete-me-2")
+ session.message_flow(destination="consumer_tag", unit=session.credit_unit.message, value=0xFFFFFFFFL)
+ session.message_flow(destination="consumer_tag", unit=session.credit_unit.byte, value=0xFFFFFFFFL)
+ queue = session.incoming("consumer_tag")
+ msg = queue.get(timeout=1)
+ self.assertEqual("message", msg.body)
+ session.message_cancel(destination="consumer_tag")
+
+ #retry deletion on empty queue:
+ session.queue_delete(queue="delete-me-2", if_empty=True)
+
+ #check that it has gone by declaring passively:
+ try:
+ session.queue_declare(queue="delete-me-2", passive=True)
+ self.fail("Queue has not been deleted")
+ except SessionException, e:
+ self.assertEquals(404, e.args[0].error_code)
+
+ def test_delete_ifunused(self):
+ """
+ Test that if_unused field of queue_delete is honoured
+ """
+ session = self.session
+
+ #create a queue and register a consumer:
+ session.queue_declare(queue="delete-me-3")
+ session.queue_declare(queue="delete-me-3", passive=True)
+ session.message_subscribe(destination="consumer_tag", queue="delete-me-3")
+
+ #need new session now:
+ session2 = self.conn.session("replacement", 2)
+
+ #try to delete, but only if empty:
+ try:
+ session2.queue_delete(queue="delete-me-3", if_unused=True)
+ self.fail("Expected delete if_unused to fail for queue with existing consumer")
+ except SessionException, e:
+ self.assertEquals(406, e.args[0].error_code)
+
+ session.message_cancel(destination="consumer_tag")
+ session.queue_delete(queue="delete-me-3", if_unused=True)
+ #check that it has gone by declaring passively:
+ try:
+ session.queue_declare(queue="delete-me-3", passive=True)
+ self.fail("Queue has not been deleted")
+ except SessionException, e:
+ self.assertEquals(404, e.args[0].error_code)
+
+
+ def test_autodelete_shared(self):
+ """
+ Test auto-deletion (of non-exclusive queues)
+ """
+ session = self.session
+ session2 =self.conn.session("other", 1)
+
+ session.queue_declare(queue="auto-delete-me", auto_delete=True)
+
+ #consume from both sessions
+ tag = "my-tag"
+ session.message_subscribe(queue="auto-delete-me", destination=tag)
+ session2.message_subscribe(queue="auto-delete-me", destination=tag)
+
+ #implicit cancel
+ session2.close()
+
+ #check it is still there
+ session.queue_declare(queue="auto-delete-me", passive=True)
+
+ #explicit cancel => queue is now unused again:
+ session.message_cancel(destination=tag)
+
+ #NOTE: this assumes there is no timeout in use
+
+ #check that it has gone by declaring it passively
+ try:
+ session.queue_declare(queue="auto-delete-me", passive=True)
+ self.fail("Expected queue to have been deleted")
+ except SessionException, e:
+ self.assertEquals(404, e.args[0].error_code)
+
+