/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program 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 distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.id.uuid;
import java.util.UUID;
import junit.framework.TestCase;
/**
* TODO : javadoc
*
* @author Steve Ebersole
*/
public class CustomVersionOneStrategyTest extends TestCase {
public static void main(String[] args) {
System.out.println( System.currentTimeMillis() );
System.out.println( Long.MAX_VALUE );
}
public void testUniqueCounter() {
CustomVersionOneStrategy strategy = new CustomVersionOneStrategy();
long now = System.currentTimeMillis();
UUID uuid1 = new UUID(
strategy.getMostSignificantBits(),
CustomVersionOneStrategy.generateLeastSignificantBits( now )
);
assertEquals( 2, uuid1.variant() );
assertEquals( 1, uuid1.version() );
for ( int i = 0; i < 100; i++ ) {
UUID uuidX = new UUID(
strategy.getMostSignificantBits(),
CustomVersionOneStrategy.generateLeastSignificantBits( now )
);
assertEquals( 2, uuidX.variant() );
assertEquals( 1, uuidX.version() );
assertFalse( uuid1.equals( uuidX ) );
assertEquals( uuid1.getMostSignificantBits(), uuidX.getMostSignificantBits() );
}
}
public void testRangeOfValues() {
CustomVersionOneStrategy strategy = new CustomVersionOneStrategy();
UUID uuid = new UUID(
strategy.getMostSignificantBits(),
CustomVersionOneStrategy.generateLeastSignificantBits( 0 )
);
assertEquals( 2, uuid.variant() );
assertEquals( 1, uuid.version() );
uuid = new UUID(
strategy.getMostSignificantBits(),
CustomVersionOneStrategy.generateLeastSignificantBits( Long.MAX_VALUE )
);
assertEquals( 2, uuid.variant() );
assertEquals( 1, uuid.version() );
}
}