| /* |
| * 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 |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * 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.AtomicIntegerArray; |
| |
| import junit.framework.Test; |
| import junit.framework.TestSuite; |
| |
| public class AtomicIntegerArray9Test extends JSR166TestCase { |
| |
| public static void main(String[] args) { |
| main(suite(), args); |
| } |
| public static Test suite() { |
| return new TestSuite(AtomicIntegerArray9Test.class); |
| } |
| |
| /** |
| * get and set for out of bound indices throw IndexOutOfBoundsException |
| */ |
| public void testIndexing() { |
| AtomicIntegerArray aa = new AtomicIntegerArray(SIZE); |
| for (int index : new int[] { -1, SIZE }) { |
| final int j = index; |
| final Runnable[] tasks = { |
| () -> aa.getPlain(j), |
| () -> aa.getOpaque(j), |
| () -> aa.getAcquire(j), |
| () -> aa.setPlain(j, 1), |
| () -> aa.setOpaque(j, 1), |
| () -> aa.setRelease(j, 1), |
| () -> aa.compareAndExchange(j, 1, 2), |
| () -> aa.compareAndExchangeAcquire(j, 1, 2), |
| () -> aa.compareAndExchangeRelease(j, 1, 2), |
| () -> aa.weakCompareAndSetPlain(j, 1, 2), |
| () -> aa.weakCompareAndSetVolatile(j, 1, 2), |
| () -> aa.weakCompareAndSetAcquire(j, 1, 2), |
| () -> aa.weakCompareAndSetRelease(j, 1, 2), |
| }; |
| |
| assertThrows(IndexOutOfBoundsException.class, tasks); |
| } |
| } |
| |
| /** |
| * getPlain returns the last value set |
| */ |
| public void testGetPlainSet() { |
| AtomicIntegerArray aa = new AtomicIntegerArray(SIZE); |
| for (int i = 0; i < SIZE; i++) { |
| aa.set(i, 1); |
| assertEquals(1, aa.getPlain(i)); |
| aa.set(i, 2); |
| assertEquals(2, aa.getPlain(i)); |
| aa.set(i, -3); |
| assertEquals(-3, aa.getPlain(i)); |
| } |
| } |
| |
| /** |
| * getOpaque returns the last value set |
| */ |
| public void testGetOpaqueSet() { |
| AtomicIntegerArray aa = new AtomicIntegerArray(SIZE); |
| for (int i = 0; i < SIZE; i++) { |
| aa.set(i, 1); |
| assertEquals(1, aa.getOpaque(i)); |
| aa.set(i, 2); |
| assertEquals(2, aa.getOpaque(i)); |
| aa.set(i, -3); |
| assertEquals(-3, aa.getOpaque(i)); |
| } |
| } |
| |
| /** |
| * getAcquire returns the last value set |
| */ |
| public void testGetAcquireSet() { |
| AtomicIntegerArray aa = new AtomicIntegerArray(SIZE); |
| for (int i = 0; i < SIZE; i++) { |
| aa.set(i, 1); |
| assertEquals(1, aa.getAcquire(i)); |
| aa.set(i, 2); |
| assertEquals(2, aa.getAcquire(i)); |
| aa.set(i, -3); |
| assertEquals(-3, aa.getAcquire(i)); |
| } |
| } |
| |
| /** |
| * get returns the last value setPlain |
| */ |
| public void testGetSetPlain() { |
| AtomicIntegerArray aa = new AtomicIntegerArray(SIZE); |
| for (int i = 0; i < SIZE; i++) { |
| aa.setPlain(i, 1); |
| assertEquals(1, aa.get(i)); |
| aa.setPlain(i, 2); |
| assertEquals(2, aa.get(i)); |
| aa.setPlain(i, -3); |
| assertEquals(-3, aa.get(i)); |
| } |
| } |
| |
| /** |
| * get returns the last value setOpaque |
| */ |
| public void testGetSetOpaque() { |
| AtomicIntegerArray aa = new AtomicIntegerArray(SIZE); |
| for (int i = 0; i < SIZE; i++) { |
| aa.setOpaque(i, 1); |
| assertEquals(1, aa.get(i)); |
| aa.setOpaque(i, 2); |
| assertEquals(2, aa.get(i)); |
| aa.setOpaque(i, -3); |
| assertEquals(-3, aa.get(i)); |
| } |
| } |
| |
| /** |
| * get returns the last value setRelease |
| */ |
| public void testGetSetRelease() { |
| AtomicIntegerArray aa = new AtomicIntegerArray(SIZE); |
| for (int i = 0; i < SIZE; i++) { |
| aa.setRelease(i, 1); |
| assertEquals(1, aa.get(i)); |
| aa.setRelease(i, 2); |
| assertEquals(2, aa.get(i)); |
| aa.setRelease(i, -3); |
| assertEquals(-3, aa.get(i)); |
| } |
| } |
| |
| /** |
| * compareAndExchange succeeds in changing value if equal to |
| * expected else fails |
| */ |
| public void testCompareAndExchange() { |
| AtomicIntegerArray aa = new AtomicIntegerArray(SIZE); |
| for (int i = 0; i < SIZE; i++) { |
| aa.set(i, 1); |
| assertEquals(1, aa.compareAndExchange(i, 1, 2)); |
| assertEquals(2, aa.compareAndExchange(i, 2, -4)); |
| assertEquals(-4, aa.get(i)); |
| assertEquals(-4, aa.compareAndExchange(i,-5, 7)); |
| assertEquals(-4, aa.get(i)); |
| assertEquals(-4, aa.compareAndExchange(i, -4, 7)); |
| assertEquals(7, aa.get(i)); |
| } |
| } |
| |
| /** |
| * compareAndExchangeAcquire succeeds in changing value if equal to |
| * expected else fails |
| */ |
| public void testCompareAndExchangeAcquire() { |
| AtomicIntegerArray aa = new AtomicIntegerArray(SIZE); |
| for (int i = 0; i < SIZE; i++) { |
| aa.set(i, 1); |
| assertEquals(1, aa.compareAndExchangeAcquire(i, 1, 2)); |
| assertEquals(2, aa.compareAndExchangeAcquire(i, 2, -4)); |
| assertEquals(-4, aa.get(i)); |
| assertEquals(-4, aa.compareAndExchangeAcquire(i,-5, 7)); |
| assertEquals(-4, aa.get(i)); |
| assertEquals(-4, aa.compareAndExchangeAcquire(i, -4, 7)); |
| assertEquals(7, aa.get(i)); |
| } |
| } |
| |
| /** |
| * compareAndExchangeRelease succeeds in changing value if equal to |
| * expected else fails |
| */ |
| public void testCompareAndExchangeRelease() { |
| AtomicIntegerArray aa = new AtomicIntegerArray(SIZE); |
| for (int i = 0; i < SIZE; i++) { |
| aa.set(i, 1); |
| assertEquals(1, aa.compareAndExchangeRelease(i, 1, 2)); |
| assertEquals(2, aa.compareAndExchangeRelease(i, 2, -4)); |
| assertEquals(-4, aa.get(i)); |
| assertEquals(-4, aa.compareAndExchangeRelease(i,-5, 7)); |
| assertEquals(-4, aa.get(i)); |
| assertEquals(-4, aa.compareAndExchangeRelease(i, -4, 7)); |
| assertEquals(7, aa.get(i)); |
| } |
| } |
| |
| /** |
| * repeated weakCompareAndSetPlain succeeds in changing value when equal |
| * to expected |
| */ |
| public void testWeakCompareAndSetPlain() { |
| AtomicIntegerArray aa = new AtomicIntegerArray(SIZE); |
| for (int i = 0; i < SIZE; i++) { |
| aa.set(i, 1); |
| do {} while (!aa.weakCompareAndSetPlain(i, 1, 2)); |
| do {} while (!aa.weakCompareAndSetPlain(i, 2, -4)); |
| assertEquals(-4, aa.get(i)); |
| do {} while (!aa.weakCompareAndSetPlain(i, -4, 7)); |
| assertEquals(7, aa.get(i)); |
| } |
| } |
| |
| /** |
| * repeated weakCompareAndSetVolatile succeeds in changing value when equal |
| * to expected |
| */ |
| public void testWeakCompareAndSetVolatile() { |
| AtomicIntegerArray aa = new AtomicIntegerArray(SIZE); |
| for (int i = 0; i < SIZE; i++) { |
| aa.set(i, 1); |
| do {} while (!aa.weakCompareAndSetVolatile(i, 1, 2)); |
| do {} while (!aa.weakCompareAndSetVolatile(i, 2, -4)); |
| assertEquals(-4, aa.get(i)); |
| do {} while (!aa.weakCompareAndSetVolatile(i, -4, 7)); |
| assertEquals(7, aa.get(i)); |
| } |
| } |
| |
| /** |
| * repeated weakCompareAndSetAcquire succeeds in changing value when equal |
| * to expected |
| */ |
| public void testWeakCompareAndSetAcquire() { |
| AtomicIntegerArray aa = new AtomicIntegerArray(SIZE); |
| for (int i = 0; i < SIZE; i++) { |
| aa.set(i, 1); |
| do {} while (!aa.weakCompareAndSetAcquire(i, 1, 2)); |
| do {} while (!aa.weakCompareAndSetAcquire(i, 2, -4)); |
| assertEquals(-4, aa.get(i)); |
| do {} while (!aa.weakCompareAndSetAcquire(i, -4, 7)); |
| assertEquals(7, aa.get(i)); |
| } |
| } |
| |
| /** |
| * repeated weakCompareAndSetRelease succeeds in changing value when equal |
| * to expected |
| */ |
| public void testWeakCompareAndSetRelease() { |
| AtomicIntegerArray aa = new AtomicIntegerArray(SIZE); |
| for (int i = 0; i < SIZE; i++) { |
| aa.set(i, 1); |
| do {} while (!aa.weakCompareAndSetRelease(i, 1, 2)); |
| do {} while (!aa.weakCompareAndSetRelease(i, 2, -4)); |
| assertEquals(-4, aa.get(i)); |
| do {} while (!aa.weakCompareAndSetRelease(i, -4, 7)); |
| assertEquals(7, aa.get(i)); |
| } |
| } |
| |
| } |