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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.
*
*/
package org.apache.qpid.server.subscription;
import org.apache.qpid.AMQException;
import org.apache.qpid.framing.AMQShortString;
import org.apache.qpid.server.protocol.InternalTestProtocolSession;
import org.apache.qpid.server.util.InternalBrokerBaseCase;
import java.util.List;
public class QueueBrowserUsesNoAckTest extends InternalBrokerBaseCase
{
public void testQueueBrowserUsesNoAck() throws AMQException
{
int sendMessageCount = 2;
int prefetch = 1;
//Check store is empty
checkStoreContents(0);
//Send required messsages to the queue
publishMessages(getSession(), getChannel(), sendMessageCount);
//Ensure they are stored
checkStoreContents(sendMessageCount);
//Check that there are no unacked messages
assertEquals("Channel should have no unacked msgs ", 0,
getChannel().getUnacknowledgedMessageMap().size());
//Set the prefetch on the session to be less than the sent messages
getChannel().setCredit(0, prefetch);
//browse the queue
AMQShortString browser = browse(getChannel(), getQueue());
getQueue().deliverAsync();
//Wait for messages to fill the prefetch
getSession().awaitDelivery(prefetch);
//Get those messages
List<InternalTestProtocolSession.DeliveryPair> messages =
getSession().getDelivers(getChannel().getChannelId(), browser,
prefetch);
//Ensure we recevied the prefetched messages
assertEquals(prefetch, messages.size());
//Check the process didn't suspend the subscription as this would
// indicate we are using the prefetch credit. i.e. using acks not No-Ack
assertTrue("The subscription has been suspended",
!getChannel().getSubscription(browser).getState()
.equals(Subscription.State.SUSPENDED));
}
}
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