/*
* Copyright 2016 The Netty Project
*
* The Netty Project 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 io.netty.util;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
public class AbstractReferenceCountedTest {
@Test(expected = IllegalReferenceCountException.class)
public void testRetainOverflow() {
AbstractReferenceCounted referenceCounted = newReferenceCounted();
referenceCounted.setRefCnt(Integer.MAX_VALUE);
assertEquals(Integer.MAX_VALUE, referenceCounted.refCnt());
referenceCounted.retain();
}
@Test(expected = IllegalReferenceCountException.class)
public void testRetainOverflow2() {
AbstractReferenceCounted referenceCounted = newReferenceCounted();
assertEquals(1, referenceCounted.refCnt());
referenceCounted.retain(Integer.MAX_VALUE);
}
@Test(expected = IllegalReferenceCountException.class)
public void testReleaseOverflow() {
AbstractReferenceCounted referenceCounted = newReferenceCounted();
referenceCounted.setRefCnt(0);
assertEquals(0, referenceCounted.refCnt());
referenceCounted.release(Integer.MAX_VALUE);
}
@Test(expected = IllegalReferenceCountException.class)
public void testRetainResurrect() {
AbstractReferenceCounted referenceCounted = newReferenceCounted();
assertTrue(referenceCounted.release());
assertEquals(0, referenceCounted.refCnt());
referenceCounted.retain();
}
@Test(expected = IllegalReferenceCountException.class)
public void testRetainResurrect2() {
AbstractReferenceCounted referenceCounted = newReferenceCounted();
assertTrue(referenceCounted.release());
assertEquals(0, referenceCounted.refCnt());
referenceCounted.retain(2);
}
private static AbstractReferenceCounted newReferenceCounted() {
return new AbstractReferenceCounted() {
@Override
protected void deallocate() {
// NOOP
}
@Override
public ReferenceCounted touch(Object hint) {
return this;
}
};
}
}