/*
* Copyright 2009 Red Hat, Inc.
* Red Hat 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.hornetq.tests.unit.util;
import java.util.HashSet;
import java.util.Set;
import junit.framework.Assert;
import org.hornetq.tests.util.UnitTestCase;
import org.hornetq.utils.UUIDGenerator;
/**
* @author <a href="mailto:jmesnil@redhat.com">Jeff Mesnil</a>
*
* @version <tt>$Revision$</tt>
*
*/
public class UUIDTest extends UnitTestCase
{
// Constants -----------------------------------------------------
// Attributes ----------------------------------------------------
// Static --------------------------------------------------------
// Constructors --------------------------------------------------
// Public --------------------------------------------------------
public void testManyUUIDs() throws Exception
{
final int MANY_TIMES = getTimes();
Set<String> uuidsSet = new HashSet<String>();
UUIDGenerator gen = UUIDGenerator.getInstance();
for (int i = 0; i < MANY_TIMES; i++)
{
uuidsSet.add(gen.generateStringUUID());
}
// we put them in a set to check duplicates
Assert.assertEquals(MANY_TIMES, uuidsSet.size());
}
// Package protected ---------------------------------------------
// Protected -----------------------------------------------------
protected int getTimes()
{
return 100000;
}
// Private -------------------------------------------------------
// Inner classes -------------------------------------------------
}