EffectVisibilityCrossNodeTest.java

// Copyright (c) 2007-Present Pivotal Software, Inc.  All rights reserved.
//
// This software, the RabbitMQ Java client library, is triple-licensed under the
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// LICENSE-MPL-RabbitMQ. For the GPL, please see LICENSE-GPL2.  For the ASL,
// please see LICENSE-APACHE2.
//
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package com.rabbitmq.client.test.server;

import static org.junit.Assert.assertEquals;

import java.io.IOException;

import org.junit.Test;

import com.rabbitmq.client.test.functional.ClusteredTestBase;

/**
 * From bug 19844 - we want to be sure that publish vs everything else can't
 * happen out of order
 */
public class EffectVisibilityCrossNodeTest extends ClusteredTestBase {
    private final String[] queues = new String[QUEUES];

    @Override
    protected void createResources() throws IOException {
        for (int i = 0; i < queues.length ; i++) {
            queues[i] = alternateChannel.queueDeclare("", false, false, true, null).getQueue();
            alternateChannel.queueBind(queues[i], "amq.fanout", "");
        }
    }

    @Override
    protected void releaseResources() throws IOException {
        for (int i = 0; i < queues.length ; i++) {
            alternateChannel.queueDelete(queues[i]);
        }
    }

    private static final int QUEUES = 5;
    private static final int BATCHES = 500;
    private static final int MESSAGES_PER_BATCH = 10;

    private static final byte[] msg = "".getBytes();

    @Test public void effectVisibility() throws Exception {

        for (int i = 0; i < BATCHES; i++) {
            for (int j = 0; j < MESSAGES_PER_BATCH; j++) {
                channel.basicPublish("amq.fanout", "", null, msg);
            }
            for (int j = 0; j < queues.length ; j++) {
                assertEquals(MESSAGES_PER_BATCH, channel.queuePurge(queues[j]).getMessageCount());
            }
        }
    }
}