/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library 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 library 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.common.buffer.impl;
import static org.junit.Assert.*;
import java.util.concurrent.atomic.AtomicLong;
import org.junit.Test;
import org.teiid.common.buffer.BaseCacheEntry;
import org.teiid.common.buffer.CacheKey;
public class TestLrfuEvictionQueue {
@Test public void testPrecision() {
LrfuEvictionQueue<?> q = new LrfuEvictionQueue<BaseCacheEntry>(new AtomicLong());
long value = 0;
for (long i = Integer.MAX_VALUE; i < 10l + Integer.MAX_VALUE; i++) {
long valueNext = q.computeNextOrderingValue(i, i-1, value);
assertTrue(valueNext > value);
value = valueNext;
}
}
@Test public void testKeyCompare() {
CacheKey key = new CacheKey(-5600000000000000000l, 0l, 0l);
CacheKey key1 = new CacheKey(3831662765844904176l, 0l, 0l);
CacheKey key2 = new CacheKey(0l, 0l, 0l);
assertTrue(key.compareTo(key1) < 0);
assertTrue(key1.compareTo(key) > 0);
}
}