/*
*
* 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.store;
import junit.framework.JUnit4TestAdapter;
import org.junit.Test;
import org.junit.Assert;
import org.junit.Before;
import org.apache.qpid.server.queue.AMQMessage;
import org.apache.qpid.AMQException;
/**
* Tests that reference counting works correctly with AMQMessage and the message store
*/
public class TestReferenceCounting
{
private TestableMemoryMessageStore _store;
@Before
public void createCommonObjects()
{
_store = new TestableMemoryMessageStore();
}
/**
* Check that when the reference count is decremented the message removes itself from the store
*/
@Test
public void testMessageGetsRemoved() throws AMQException
{
AMQMessage message = new AMQMessage(_store, null);
_store.put(message);
Assert.assertTrue(_store.getMessageMap().size() == 1);
message.decrementReference();
Assert.assertTrue(_store.getMessageMap().size() == 0);
}
@Test
public void testMessageRemains() throws AMQException
{
AMQMessage message = new AMQMessage(_store, null);
_store.put(message);
Assert.assertTrue(_store.getMessageMap().size() == 1);
message.incrementReference();
message.decrementReference();
Assert.assertTrue(_store.getMessageMap().size() == 1);
}
public static junit.framework.Test suite()
{
return new JUnit4TestAdapter(TestReferenceCounting.class);
}
}