125 lines
4.4 KiB
Java
125 lines
4.4 KiB
Java
/*
|
|
* 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 and Martin Buchholz 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.ArrayDeque;
|
|
import java.util.Collections;
|
|
import java.util.Spliterator;
|
|
|
|
import jdk.internal.util.ArraysSupport;
|
|
import junit.framework.Test;
|
|
|
|
public class ArrayDeque8Test extends JSR166TestCase {
|
|
public static void main(String[] args) {
|
|
main(suite(), args);
|
|
}
|
|
|
|
public static Test suite() {
|
|
return newTestSuite(ArrayDeque8Test.class);
|
|
}
|
|
|
|
/**
|
|
* Spliterator.getComparator always throws IllegalStateException
|
|
*/
|
|
public void testSpliterator_getComparator() {
|
|
assertThrows(IllegalStateException.class,
|
|
() -> new ArrayDeque<Item>().spliterator().getComparator());
|
|
}
|
|
|
|
/**
|
|
* Spliterator characteristics are as advertised
|
|
*/
|
|
public void testSpliterator_characteristics() {
|
|
ArrayDeque<Item> q = new ArrayDeque<>();
|
|
Spliterator<Item> s = q.spliterator();
|
|
int characteristics = s.characteristics();
|
|
int required = Spliterator.NONNULL
|
|
| Spliterator.ORDERED
|
|
| Spliterator.SIZED
|
|
| Spliterator.SUBSIZED;
|
|
mustEqual(required, characteristics & required);
|
|
assertTrue(s.hasCharacteristics(required));
|
|
mustEqual(0, characteristics
|
|
& (Spliterator.CONCURRENT
|
|
| Spliterator.DISTINCT
|
|
| Spliterator.IMMUTABLE
|
|
| Spliterator.SORTED));
|
|
}
|
|
|
|
/**
|
|
* Handle capacities near Integer.MAX_VALUE.
|
|
* ant -Dvmoptions='-Xms28g -Xmx28g' -Djsr166.expensiveTests=true -Djsr166.tckTestClass=ArrayDeque8Test -Djsr166.methodFilter=testHugeCapacity tck
|
|
*/
|
|
public void testHugeCapacity() {
|
|
if (! (testImplementationDetails
|
|
&& expensiveTests
|
|
&& Runtime.getRuntime().maxMemory() > 24L * (1 << 30)))
|
|
return;
|
|
|
|
final Item e = fortytwo;
|
|
final int maxArraySize = ArraysSupport.SOFT_MAX_ARRAY_LENGTH;
|
|
|
|
assertThrows(OutOfMemoryError.class,
|
|
() -> new ArrayDeque<Item>(Integer.MAX_VALUE));
|
|
|
|
{
|
|
ArrayDeque<Object> q = new ArrayDeque<>(maxArraySize - 1);
|
|
mustEqual(0, q.size());
|
|
assertTrue(q.isEmpty());
|
|
q = null;
|
|
}
|
|
|
|
{
|
|
ArrayDeque<Object> q = new ArrayDeque<>();
|
|
assertTrue(q.addAll(Collections.nCopies(maxArraySize - 3, e)));
|
|
mustEqual(e, q.peekFirst());
|
|
mustEqual(e, q.peekLast());
|
|
mustEqual(maxArraySize - 3, q.size());
|
|
q.addFirst(zero);
|
|
q.addLast(one);
|
|
mustEqual(zero, q.peekFirst());
|
|
mustEqual(one, q.peekLast());
|
|
mustEqual(maxArraySize - 1, q.size());
|
|
|
|
ArrayDeque<Object> smallish = new ArrayDeque<>(
|
|
Collections.nCopies(Integer.MAX_VALUE - q.size() + 1, e));
|
|
assertThrows(
|
|
IllegalStateException.class,
|
|
() -> q.addAll(q),
|
|
() -> q.addAll(smallish),
|
|
() -> smallish.addAll(q));
|
|
}
|
|
}
|
|
|
|
}
|