/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.test.util;
import org.junit.Test;
import org.hibernate.internal.util.compare.RowVersionComparator;
import org.hibernate.testing.junit4.BaseUnitTestCase;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
/**
* @author Gail Badner
*/
public class RowVersionComparatorTest extends BaseUnitTestCase {
@Test
public void testNull() {
try {
RowVersionComparator.INSTANCE.compare( null, null );
fail( "should have thrown NullPointerException" );
}
catch ( NullPointerException ex ) {
// expected
}
try {
RowVersionComparator.INSTANCE.compare( null, new byte[] { 1 } );
fail( "should have thrown NullPointerException" );
}
catch ( NullPointerException ex ) {
// expected
}
try {
RowVersionComparator.INSTANCE.compare( new byte[] { 1 }, null );
fail( "should have thrown NullPointerException" );
}
catch ( NullPointerException ex ) {
// expected
}
}
@Test
public void testArraysSameLength() {
assertEquals(
0,
RowVersionComparator.INSTANCE.compare(
new byte[] {},
new byte[] {}
)
);
assertEquals(
0,
RowVersionComparator.INSTANCE.compare(
new byte[] { 1 },
new byte[] { 1 }
)
);
assertEquals(
0,
RowVersionComparator.INSTANCE.compare(
new byte[] { 1, 2 },
new byte[] { 1, 2 }
)
);
assertTrue(
RowVersionComparator.INSTANCE.compare(
new byte[] { 0, 2 },
new byte[] { 1, 2 }
) < 0
);
assertTrue(
RowVersionComparator.INSTANCE.compare(
new byte[] { 1, 1 },
new byte[] { 1, 2 }
) < 0
);
assertTrue( RowVersionComparator.INSTANCE.compare(
new byte[] { 2, 2 },
new byte[] { 1, 2 }
) > 0
);
assertTrue( RowVersionComparator.INSTANCE.compare(
new byte[] { 2, 2 },
new byte[] { 2, 1 }
) > 0
);
}
@Test
public void testArraysDifferentLength() {
assertTrue( RowVersionComparator.INSTANCE.compare(
new byte[] {},
new byte[] { 1 }
) < 0
);
assertTrue( RowVersionComparator.INSTANCE.compare(
new byte[] { 1 },
new byte[] {}
) > 0
);
assertTrue( RowVersionComparator.INSTANCE.compare(
new byte[] { 1 },
new byte[] { 1, 2 }
) < 0
);
assertTrue( RowVersionComparator.INSTANCE.compare(
new byte[] { 1, 2 },
new byte[] { 1 }
) > 0
);
assertTrue( RowVersionComparator.INSTANCE.compare(
new byte[] { 2 },
new byte[] { 1, 2 }
) > 0
);
assertTrue( RowVersionComparator.INSTANCE.compare(
new byte[] { 1, 2 },
new byte[] { 2 }
) < 0
);
}
}