/*
* This file is part of LanternServer, licensed under the MIT License (MIT).
*
* Copyright (c) LanternPowered <https://www.lanternpowered.org>
* Copyright (c) SpongePowered <https://www.spongepowered.org>
* Copyright (c) contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the Software), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.lanternpowered.server.util.concurrent;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertFalse;
import org.junit.Test;
public class AtomicByteArrayTest {
private static final int SIZE = 15;
private static final byte A = 5;
private static final byte B = 17;
private static final byte C = 85;
private static final byte D = 20;
private static final byte E = 112;
@Test
public void testArrayConstructor() {
byte[] values = { B, A, C, D, E };
AtomicByteArray array = new AtomicByteArray(values);
assertEquals(array.length(), values.length);
assertArrayEquals(values, array.getArray());
for (int i = 0; i < values.length; i++) {
assertEquals(values[i], array.get(i));
array.set(i, (byte) i);
assertEquals(i, array.get(i));
}
}
@Test
public void testGetSet() {
AtomicByteArray array = new AtomicByteArray(SIZE);
for (int i = 0; i < array.length(); i++) {
array.set(i, A);
assertEquals(A, array.get(i));
array.set(i, B);
assertEquals(B, array.get(i));
array.set(i, C);
assertEquals(C, array.get(i));
}
}
@Test
public void testLazyGetSet() {
AtomicByteArray array = new AtomicByteArray(SIZE);
for (int i = 0; i < array.length(); i++) {
array.lazySet(i, A);
assertEquals(A, array.get(i));
array.lazySet(i, B);
assertEquals(B, array.get(i));
array.lazySet(i, C);
assertEquals(C, array.get(i));
}
}
@Test
public void testCompareAndSet() {
AtomicByteArray array = new AtomicByteArray(SIZE);
for (int i = 0; i < SIZE; i++) {
array.set(i, A);
assertTrue(array.compareAndSet(i, A, B));
assertTrue(array.compareAndSet(i, B, C));
assertEquals(C, array.get(i));
assertFalse(array.compareAndSet(i, D, E));
assertEquals(C, array.get(i));
assertTrue(array.compareAndSet(i, C, E));
assertEquals(E, array.get(i));
}
}
@Test
public void testGetAndSet() {
AtomicByteArray array = new AtomicByteArray(SIZE);
for (int i = 0; i < SIZE; i++) {
array.set(i, A);
assertEquals(A, array.getAndSet(i, B));
assertEquals(B, array.getAndSet(i, E));
assertEquals(E, array.getAndSet(i, A));
}
}
}