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a trivial lrucache test to validate resize is not crazy 

git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@943861 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Gary Tully 2010-05-13 10:13:21 +00:00
parent 3a6a56c633
commit 429869d034
1 changed files with 34 additions and 0 deletions
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34
activemq-core/src/test/java/org/apache/activemq/util/LRUCacheTest.java Normal file
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package org.apache.activemq.util;
import static org.junit.Assert.assertEquals;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.junit.Test;
public class LRUCacheTest {
protected static final Log LOG = LogFactory.getLog(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());
}
}