/*******************************************************************************
* Copyright 2015 Analog Devices, Inc.
*
* Licensed 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 com.analog.lyric.collect;
import static org.junit.Assert.*;
import org.junit.Test;
/**
* Tests for {@link DoubleArrayCache} et al.
* @since 0.08
* @author Christopher Barber
*/
public class TestArrayCache
{
@Test
public void testDoubleArrayCache()
{
DoubleArrayCache cache = new DoubleArrayCache(2);
assertEquals(2, cache.maxInstancesPerSize());
assertSame(ArrayUtil.EMPTY_DOUBLE_ARRAY, cache.allocateAtLeast(0));
assertSame(ArrayUtil.EMPTY_DOUBLE_ARRAY, cache.allocateAtLeast(-1));
double[] array1 = cache.allocateAtLeast(3);
assertTrue(array1.length >= 3);
double[] array2 = cache.allocateAtLeast(3);
assertTrue(array1.length >= 3);
assertNotSame(array1, array2);
double[] array3 = cache.allocateAtLeast(3);
assertEquals(array3.length, 3);
assertNotSame(array1, array3);
assertNotSame(array2, array3);
cache.release(array1);
double[] array4 = cache.allocateAtLeast(3);
assertSame(array1, array4);
cache.release(array4);
cache.release(array2);
cache.release(array3);
cache.release(array2.clone());
assertEquals(DoubleArrayCache.DEFAULT_MAX_INSTANCES, new DoubleArrayCache().maxInstancesPerSize());
}
@Test
public void testIntArrayCache()
{
IntArrayCache cache = new IntArrayCache(2);
assertEquals(2, cache.maxInstancesPerSize());
assertSame(ArrayUtil.EMPTY_INT_ARRAY, cache.allocateAtLeast(0));
assertSame(ArrayUtil.EMPTY_INT_ARRAY, cache.allocateAtLeast(-1));
int[] array1 = cache.allocateAtLeast(3);
assertTrue(array1.length >= 3);
int[] array2 = cache.allocateAtLeast(3);
assertTrue(array1.length >= 3);
assertNotSame(array1, array2);
int[] array3 = cache.allocateAtLeast(3);
assertEquals(array3.length, 3);
assertNotSame(array1, array3);
assertNotSame(array2, array3);
cache.release(array1);
int[] array4 = cache.allocateAtLeast(3);
assertSame(array1, array4);
cache.release(array4);
cache.release(array2);
cache.release(array3);
cache.release(array2.clone());
assertEquals(IntArrayCache.DEFAULT_MAX_INSTANCES, new IntArrayCache().maxInstancesPerSize());
}
}