diff --git a/src/test/java/org/jboss/netty/util/TimeBasedUuidGeneratorTest.java b/src/test/java/org/jboss/netty/util/TimeBasedUuidGeneratorTest.java new file mode 100644 index 0000000000..77454c56ff --- /dev/null +++ b/src/test/java/org/jboss/netty/util/TimeBasedUuidGeneratorTest.java @@ -0,0 +1,58 @@ +/* + * JBoss, Home of Professional Open Source + * + * Copyright 2008, Red Hat Middleware LLC, and individual contributors + * by the @author tags. See the COPYRIGHT.txt 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.netty.util; + +import static org.junit.Assert.*; + +import java.util.ArrayList; +import java.util.Collections; +import java.util.List; +import java.util.UUID; + +import org.junit.Test; + + +/** + * @author The Netty Project (netty-dev@lists.jboss.org) + * @author Trustin Lee (tlee@redhat.com) + * + * @version $Rev$, $Date$ + * + */ +public class TimeBasedUuidGeneratorTest { + private static final int COUNT = 1048576; + + @Test + public void shouldNotDuplicate() { + List uuids = new ArrayList(COUNT); + for (int i = 0; i < COUNT; i ++) { + uuids.add(TimeBasedUuidGenerator.generate()); + } + + Collections.sort(uuids); + + for (int i = 1; i < COUNT; i ++) { + assertFalse(uuids.get(i - 1).equals(uuids.get(i))); + } + } +}