/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
/*
* This file is available under and governed by the GNU General Public
* License version 2 only, as published by the Free Software Foundation.
* However, the following notice accompanied the original version of this
* file:
*
* Written by Doug Lea with assistance from members of JCP JSR-166
* Expert Group and released to the public domain, as explained at
* http://creativecommons.org/publicdomain/zero/1.0/
*/
import java.util.concurrent.atomic.AtomicBoolean;
import junit.framework.Test;
import junit.framework.TestSuite;
public class AtomicBoolean9Test extends JSR166TestCase {
public static void main(String[] args) {
main(suite(), args);
}
public static Test suite() {
return new TestSuite(AtomicBoolean9Test.class);
}
/**
* getPlain returns the last value set
*/
public void testGetPlainSet() {
AtomicBoolean ai = new AtomicBoolean(true);
assertEquals(true, ai.getPlain());
ai.set(false);
assertEquals(false, ai.getPlain());
ai.set(true);
assertEquals(true, ai.getPlain());
}
/**
* getOpaque returns the last value set
*/
public void testGetOpaqueSet() {
AtomicBoolean ai = new AtomicBoolean(true);
assertEquals(true, ai.getOpaque());
ai.set(false);
assertEquals(false, ai.getOpaque());
ai.set(true);
assertEquals(true, ai.getOpaque());
}
/**
* getAcquire returns the last value set
*/
public void testGetAcquireSet() {
AtomicBoolean ai = new AtomicBoolean(true);
assertEquals(true, ai.getAcquire());
ai.set(false);
assertEquals(false, ai.getAcquire());
ai.set(true);
assertEquals(true, ai.getAcquire());
}
/**
* get returns the last value setPlain
*/
public void testGetSetPlain() {
AtomicBoolean ai = new AtomicBoolean(true);
assertEquals(true, ai.get());
ai.setPlain(false);
assertEquals(false, ai.get());
ai.setPlain(true);
assertEquals(true, ai.get());
}
/**
* get returns the last value setOpaque
*/
public void testGetSetOpaque() {
AtomicBoolean ai = new AtomicBoolean(true);
assertEquals(true, ai.get());
ai.setOpaque(false);
assertEquals(false, ai.get());
ai.setOpaque(true);
assertEquals(true, ai.get());
}
/**
* get returns the last value setRelease
*/
public void testGetSetRelease() {
AtomicBoolean ai = new AtomicBoolean(true);
assertEquals(true, ai.get());
ai.setRelease(false);
assertEquals(false, ai.get());
ai.setRelease(true);
assertEquals(true, ai.get());
}
/**
* compareAndExchange succeeds in changing value if equal to
* expected else fails
*/
public void testCompareAndExchange() {
AtomicBoolean ai = new AtomicBoolean(true);
assertEquals(true, ai.compareAndExchange(true, false));
assertEquals(false, ai.compareAndExchange(false, false));
assertEquals(false, ai.get());
assertEquals(false, ai.compareAndExchange(true, true));
assertEquals(false, ai.get());
assertEquals(false, ai.compareAndExchange(false, true));
assertEquals(true, ai.get());
}
/**
* compareAndExchangeAcquire succeeds in changing value if equal to
* expected else fails
*/
public void testCompareAndExchangeAcquire() {
AtomicBoolean ai = new AtomicBoolean(true);
assertEquals(true, ai.compareAndExchangeAcquire(true, false));
assertEquals(false, ai.compareAndExchangeAcquire(false, false));
assertEquals(false, ai.get());
assertEquals(false, ai.compareAndExchangeAcquire(true, true));
assertEquals(false, ai.get());
assertEquals(false, ai.compareAndExchangeAcquire(false, true));
assertEquals(true, ai.get());
}
/**
* compareAndExchangeRelease succeeds in changing value if equal to
* expected else fails
*/
public void testCompareAndExchangeRelease() {
AtomicBoolean ai = new AtomicBoolean(true);
assertEquals(true, ai.compareAndExchangeRelease(true, false));
assertEquals(false, ai.compareAndExchangeRelease(false, false));
assertEquals(false, ai.get());
assertEquals(false, ai.compareAndExchangeRelease(true, true));
assertEquals(false, ai.get());
assertEquals(false, ai.compareAndExchangeRelease(false, true));
assertEquals(true, ai.get());
}
/**
* repeated weakCompareAndSetPlain succeeds in changing value when equal
* to expected
*/
public void testWeakCompareAndSetPlain() {
AtomicBoolean ai = new AtomicBoolean(true);
do {} while (!ai.weakCompareAndSetPlain(true, false));
do {} while (!ai.weakCompareAndSetPlain(false, false));
assertFalse(ai.get());
do {} while (!ai.weakCompareAndSetPlain(false, true));
assertTrue(ai.get());
}
/**
* repeated weakCompareAndSetVolatile succeeds in changing value when equal
* to expected
*/
public void testWeakCompareAndSetVolatile() {
AtomicBoolean ai = new AtomicBoolean(true);
do {} while (!ai.weakCompareAndSetVolatile(true, false));
do {} while (!ai.weakCompareAndSetVolatile(false, false));
assertEquals(false, ai.get());
do {} while (!ai.weakCompareAndSetVolatile(false, true));
assertEquals(true, ai.get());
}
/**
* repeated weakCompareAndSetAcquire succeeds in changing value when equal
* to expected
*/
public void testWeakCompareAndSetAcquire() {
AtomicBoolean ai = new AtomicBoolean(true);
do {} while (!ai.weakCompareAndSetAcquire(true, false));
do {} while (!ai.weakCompareAndSetAcquire(false, false));
assertEquals(false, ai.get());
do {} while (!ai.weakCompareAndSetAcquire(false, true));
assertEquals(true, ai.get());
}
/**
* repeated weakCompareAndSetRelease succeeds in changing value when equal
* to expected
*/
public void testWeakCompareAndSetRelease() {
AtomicBoolean ai = new AtomicBoolean(true);
do {} while (!ai.weakCompareAndSetRelease(true, false));
do {} while (!ai.weakCompareAndSetRelease(false, false));
assertEquals(false, ai.get());
do {} while (!ai.weakCompareAndSetRelease(false, true));
assertEquals(true, ai.get());
}
}