/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This 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 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.test.guid;
import junit.framework.TestCase;
import org.jboss.util.id.GUID;
import org.jboss.util.id.VMID;
import org.jboss.util.id.UID;
import java.lang.reflect.Method;
import java.util.HashSet;
/**
* $Id: GUIDTest.java 81036 2008-11-14 13:36:39Z dimitris@jboss.org $
*
* @author <a href="mailto:clebert.suconic@jboss.com">Clebert Suconic</a>
* @author Eike Dawid (JIRA user)
*/
public class GUIDTest extends TestCase
{
private static final int ITERATIONS = 100;
public void testGuid() throws InterruptedException
{
HashSet repositoryIDs = new HashSet();
System.out.println();
System.out.println("---------------------- testProveGuidHashCodeIsSame");
GUID guid = null;
for (int i = 0; i < ITERATIONS; i++)
{
guid = new GUID();
Integer hashKey = new Integer(guid.hashCode());
if (!repositoryIDs.contains(hashKey))
{
repositoryIDs.add(hashKey);
}
System.out.println("guid.hashCode()=" + guid.hashCode());
}
if (repositoryIDs.size()==1)
{
fail("HashCode is always returning the same hash");
}
}
public void testUID() throws InterruptedException
{
HashSet repositoryIDs = new HashSet();
System.out.println();
System.out.println("---------------------- testProveUIDHashCodeIsSame");
UID guid = null;
for (int i = 0; i < ITERATIONS; i++)
{
guid = new UID();
Integer hashKey = new Integer(guid.hashCode());
if (!repositoryIDs.contains(hashKey))
{
repositoryIDs.add(hashKey);
}
System.out.println("guid.hashCode()=" + guid.hashCode());
}
if (repositoryIDs.size()==1)
{
fail("HashCode is always returning the same hash");
}
}
public void testVMID() throws Exception
{
HashSet repositoryIDs = new HashSet();
System.out.println();
System.out.println("---------------------- testProveVMIDHashCodeIsSame");
VMID guid = null;
Method method = VMID.class.getDeclaredMethod("create", new Class[]{});
method.setAccessible(true);
for (int i = 0; i < ITERATIONS; i++)
{
guid = (VMID) method.invoke(null, new Object[]{});
Integer hashKey = new Integer(guid.hashCode());
if (!repositoryIDs.contains(hashKey))
{
repositoryIDs.add(hashKey);
}
System.out.println("guid.hashCode()=" + guid.hashCode());
}
if (repositoryIDs.size()==1)
{
fail("HashCode is always returning the same hash");
}
}
}