alfresco-community-repo/source/java/org/alfresco/repo/cluster/HazelcastMessengerTest.java

/*
 * Copyright (C) 2005-2012 Alfresco Software Limited.
 *
 * This file is part of Alfresco
 *
 * Alfresco is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Alfresco is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
 */

package org.alfresco.repo.cluster;

import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.verify;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.runners.MockitoJUnitRunner;

import com.hazelcast.core.ITopic;

/**
 * Tests for the HazelcastMessenger class.
 * 
 * @author Matt Ward
 */
@RunWith(MockitoJUnitRunner.class)
public class HazelcastMessengerTest
{
    private @Mock ITopic<String> topic;
    private HazelcastMessenger<String> messenger;
    private String receivedMsg;
    
    @Before
    public void setUp()
    {
        messenger = new HazelcastMessenger<String>(topic, "address");
        receivedMsg = null;
    }
    
    @Test
    public void canSendMessage()
    {
        messenger.send("Test string");
        verify(topic).publish("Test string");
    }
    
    @Test
    public void canReceiveMessage()
    {
        messenger.setReceiver(new MessageReceiver<String>()
        {
            @Override
            public void onReceive(String message)
            {
                receivedMsg = new String(message);
            }
        });
        
        // Hazelcast will call the onMessage method...
        messenger.onMessage("Hazelcast is sending a message.");
        
        // setReceiver() should have resulted in a listener being registered with the topic.
        verify(topic).addMessageListener(messenger);
        
        assertEquals("Hazelcast is sending a message.", receivedMsg);
    }
}