/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.apache.activemq.util;
import static org.junit.Assert.assertEquals;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.junit.Test;
public class LRUCacheTest {
protected static final Logger LOG = LoggerFactory.getLogger(LRUCacheTest.class);
@Test
public void testResize() throws Exception {
LRUCache<Long, Long> underTest = new LRUCache<Long, Long>(1000);
Long count = new Long(0);
long max = 0;
for (; count < 27276827; count++) {
long start = System.currentTimeMillis();
if (!underTest.containsKey(count)) {
underTest.put(count, count);
}
long duration = System.currentTimeMillis() - start;
if (duration > max) {
LOG.info("count: " + count + ", new max=" + duration);
max = duration;
}
if (count % 100000000 == 0) {
LOG.info("count: " + count + ", max=" + max);
}
}
assertEquals("size is still in order", 1000, underTest.size());
}
}