115 lines
3.6 KiB
Java
115 lines
3.6 KiB
Java
/*
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* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8161558
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* @summary ListIterator should not discard cause on exception
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* @run testng CheckForIndexOutOfBoundsException
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*/
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import java.util.List;
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import java.util.AbstractList;
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import java.util.Iterator;
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import java.util.ListIterator;
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import java.util.NoSuchElementException;
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import org.testng.annotations.Test;
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import static org.testng.Assert.assertNotNull;
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import static org.testng.Assert.assertTrue;
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import static org.testng.Assert.fail;
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// Fixed size list containing two elements
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class MyList extends AbstractList<String> {
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private static final int SIZE = 2;
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public String get(int i) {
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if (i >= 0 && i < SIZE) {
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return "x";
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} else {
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throw new IndexOutOfBoundsException(i);
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}
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}
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public int size() {
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return SIZE;
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}
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}
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@Test
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public class CheckForIndexOutOfBoundsException {
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List<String> list = new MyList();
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@Test
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public void checkIteratorNext() {
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var iterator = list.iterator(); // position at start
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try {
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for (int i = 0; i <= list.size(); i++) {
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iterator.next();
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}
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fail("Failing checkIteratorNext() - NoSuchElementException should have been thrown");
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} catch (NoSuchElementException e) {
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checkAssertOnException(e);
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}
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}
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@Test
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public void checkListIteratorNext() {
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var iterator = list.listIterator(list.size()); // position at end
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try {
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iterator.next();
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fail("Failing checkListIteratorNext() - NoSuchElementException should have been thrown");
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} catch (NoSuchElementException e) {
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checkAssertOnException(e);
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}
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}
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@Test
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public void checkListIteratorPrevious() {
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var iterator = list.listIterator(0); // position at start
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try {
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iterator.previous();
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fail("Failing checkListIteratorPrevious() - NoSuchElementException should have been thrown");
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} catch (NoSuchElementException e) {
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checkAssertOnException(e);
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}
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}
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private void checkAssertOnException(NoSuchElementException e) {
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var cause = e.getCause();
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assertNotNull(cause, "Exception.getCause()");
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assertTrue(cause instanceof IndexOutOfBoundsException, "Exception.getCause() should be an " +
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"IndexOutOfBoundsException");
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var msg = e.getMessage();
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assertNotNull(msg, "Exception.getMessage()");
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assertTrue(msg.contains("IndexOutOfBoundsException"), "Exception.getMessage() should " +
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"contain the string 'IndexOutOfBoundsException'");
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}
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}
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