/*
* Copyright (c) 2006-2011 Nuxeo SA (http://nuxeo.com/) and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Bogdan Stefanescu
* Florent Guillaume
*/
package org.nuxeo.ecm.core.model;
import java.lang.reflect.Field;
import java.util.HashSet;
import java.util.Set;
import org.junit.Test;
import static org.junit.Assert.*;
import org.nuxeo.ecm.core.utils.SIDGenerator;
public class TestSidGenerator {
@Test
public void testGenerator() {
Set<Long> ids = new HashSet<Long>();
for (int i = 0; i < 1000; i++) {
long id = SIDGenerator.next();
if (!ids.add(id)) {
fail("ID already generated: " + id);
}
}
}
@Test
public void testGeneratorReset() throws Exception {
if (System.getProperty("os.name").startsWith("Windows")) {
// windows doesn't have enough time granularity for such
// a high-speed test
return;
}
Set<Long> ids = new HashSet<Long>();
for (int i = 0; i < 1000; i++) {
long id = SIDGenerator.next();
if (!ids.add(id)) {
fail("ID already generated: " + id);
}
}
// change the counter to a value near the max one to force a counter reset
Field field = SIDGenerator.class.getDeclaredField("count");
field.setAccessible(true);
field.set(null, Integer.MAX_VALUE - 1000);
for (int i = 0; i < 3000; i++) {
long id = SIDGenerator.next();
if (!ids.add(id)) {
fail("ID already generated: " + id);
}
}
Integer counter = (Integer) field.get(null);
assertEquals(2000, counter.intValue());
}
}