package org.jacorb.test.notification.queue;
/*
* JacORB - a free Java ORB
*
* Copyright (C) 1999-2003 Gerald Brose
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.easymock.MockControl;
import org.jacorb.notification.interfaces.Message;
import org.jacorb.notification.queue.BoundedFifoEventQueue;
import org.jacorb.notification.queue.EventQueueOverflowStrategy;
/**
* @author Alphonse Bendt
*/
public class BoundedFifoEventQueueTest extends TestCase
{
private void addEventsToEventQueue(EventQueueOverflowStrategy strategy, List events)
{
BoundedFifoEventQueue queue = new BoundedFifoEventQueue(4, strategy);
Iterator i = events.iterator();
while (i.hasNext())
{
queue.put((Message) i.next());
}
}
public void testFIFOOverflow() throws Exception
{
DelegatingOverflowStrategy strategy = new DelegatingOverflowStrategy(EventQueueOverflowStrategy.FIFO);
List _events = new ArrayList();
Message mockMessage1 = newMessage();
Message mockMessage2 = newMessage();
_events.add(mockMessage1);
_events.add(mockMessage2);
_events.add(newMessage());
_events.add(newMessage());
_events.add(newMessage());
_events.add(newMessage());
addEventsToEventQueue(strategy, _events);
assertEquals(2, strategy.getRemovedElements().size());
assertTrue(strategy.getRemovedElements().contains(mockMessage1));
assertTrue(strategy.getRemovedElements().contains(mockMessage2));
}
public void testLIFOOverflow() throws Exception
{
DelegatingOverflowStrategy strategy = new DelegatingOverflowStrategy(EventQueueOverflowStrategy.LIFO);
List _events = new ArrayList();
_events.add(newMessage());
_events.add(newMessage());
_events.add(newMessage());
Message e1 = newMessage();
Message e2 = newMessage();
_events.add(e1);
_events.add(e2);
_events.add(newMessage());
addEventsToEventQueue(strategy, _events);
assertEquals(2, strategy.getRemovedElements().size());
assertTrue(strategy.getRemovedElements().contains(e1));
assertTrue(strategy.getRemovedElements().contains(e2));
}
public void testGetAllClearsQueue() throws Exception
{
BoundedFifoEventQueue queue = new BoundedFifoEventQueue(10, EventQueueOverflowStrategy.LIFO);
assertEquals(0, queue.getAllMessages(false).length );
Message m = newMessage();
queue.put(m);
Message[] mesgs = queue.getAllMessages(false);
assertEquals(1, mesgs.length);
assertEquals(m, mesgs[0]);
assertEquals(0, queue.getAllMessages(false).length);
}
private Message newMessage()
{
MockControl controlMessage = MockControl.createControl(Message.class);
Message mockMessage = (Message) controlMessage.getMock();
controlMessage.replay();
return mockMessage;
}
public static Test suite()
{
return new TestSuite(BoundedFifoEventQueueTest.class);
}
}