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 * 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.
 *
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 */

/*
 * @test
 * @bug     8161558
 * @summary ListIterator should not discard cause on exception
 * @run testng CheckForIndexOutOfBoundsException
 */

import java.util.List;
import java.util.Collections;
import java.util.Iterator;
import java.util.NoSuchElementException;

import org.testng.annotations.Test;

import static org.testng.Assert.assertNotNull;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.fail;

@Test
public class CheckForIndexOutOfBoundsException {

    List<String> list = Collections.nCopies(2, "x");

    @Test
    public void checkNext() {
        var iterator = list.listIterator(list.size());; // position at end
        try {
            iterator.next();
            fail("Failing checkNext Test - NoSuchElementException should have been thrown");
        } catch (NoSuchElementException e) {
            var cause = e.getCause();
            assertNotNull(cause, "CheckNext Exception.getCause()");
            assertTrue(cause instanceof IndexOutOfBoundsException, "CheckNext Exception.getCause() should be an IndexOutOfBoundsException");
            var msg = e.getMessage();
            assertNotNull(msg, "CheckNext Exception.getMessage()");
            assertTrue(msg.contains("IndexOutOfBoundsException"), "CheckNext Exception.getMessage() should contain the string 'IndexOutOfBoundsException'");
        }
    }

    @Test
    public void checkPrevious() {
        var iterator = list.listIterator(0); // position at start
        try {
            iterator.previous();
            fail("Failing checkPrevious Test - NoSuchElementException should have been thrown");
        } catch (NoSuchElementException e) {
            var cause = e.getCause();
            assertNotNull(cause, "CheckPrevious Exception.getCause()");
            assertTrue(cause instanceof IndexOutOfBoundsException, "CheckPrevious Exception.getCause() should be an IndexOutOfBoundsException");
            var msg = e.getMessage();
            assertNotNull(msg, "CheckPrevious Exception.getMessage()");
            assertTrue(msg.contains("IndexOutOfBoundsException"), "CheckPrevious Exception.getMessage() should contain the string 'IndexOutOfBoundsException'");
        }
    }
}