org.objectfabric.WeakMapTest Maven / Gradle / Ivy
/**
* This file is part of ObjectFabric (http://objectfabric.org).
*
* ObjectFabric is licensed under the Apache License, Version 2.0, the terms
* of which may be found at http://www.apache.org/licenses/LICENSE-2.0.html.
*
* Copyright ObjectFabric Inc.
*
* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
* WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
package org.objectfabric;
import org.junit.Assert;
import org.junit.Test;
public class WeakMapTest extends TestsHelper {
private static final class Value {
final String Key;
Value(String key) {
Key = key;
}
}
@Test
public void run1() throws Exception {
final List refs = new List();
WeakCache map = new WeakCache() {
@Override
Value create(String key) {
Value value = new Value(key);
refs.add(value);
return value;
}
@Override
void onAdded(PlatformRef ref) {
}
};
for (int i = 0; i < 1000; i++)
map.getOrCreate("" + i);
Assert.assertEquals(1000, count(map));
System.gc();
Thread.sleep(50);
Assert.assertEquals(1000, count(map));
for (int i = 0; i < 1000; i++)
Assert.assertEquals("" + i, map.get("" + i).Key);
Assert.assertEquals(1000, map.getInternalMapSize());
refs.clear();
System.gc();
Assert.assertEquals(0, count(map));
while (map.getInternalMapSize() > 0)
Thread.sleep(1);
}
@SuppressWarnings("unused")
private static int count(WeakCache map) {
int count = 0;
for (Value value : map.values())
count++;
return count;
}
}