1 /*
   2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug     8161558
  27  * @summary ListIterator should not discard cause on exception
  28  * @run testng CheckForIndexOutOfBoundsException
  29  */
  30 
  31 import java.util.List;
  32 import java.util.Collections;
  33 import java.util.Iterator;
  34 import java.util.NoSuchElementException;
  35 
  36 import org.testng.annotations.Test;
  37 
  38 import static org.testng.Assert.assertNotNull;
  39 import static org.testng.Assert.assertTrue;
  40 import static org.testng.Assert.fail;
  41 
  42 @Test
  43 public class CheckForIndexOutOfBoundsException {
  44 
  45     List<String> list = Collections.nCopies(2, "x");
  46 
  47     @Test
  48     public void checkNext() {
  49         var iterator = list.listIterator(list.size());; // position at end
  50         try {
  51             iterator.next();
  52             fail("Failing checkNext Test - NoSuchElementException should have been thrown");
  53         } catch (NoSuchElementException e) {
  54             var cause = e.getCause();
  55             assertNotNull(cause, "CheckNext Exception.getCause()");
  56             assertTrue(cause instanceof IndexOutOfBoundsException, "CheckNext Exception.getCause() should be an IndexOutOfBoundsException");
  57             var msg = e.getMessage();
  58             assertNotNull(msg, "CheckNext Exception.getMessage()");
  59             assertTrue(msg.contains("IndexOutOfBoundsException"), "CheckNext Exception.getMessage() should contain the string 'IndexOutOfBoundsException'");
  60         }
  61     }
  62 
  63     @Test
  64     public void checkPrevious() {
  65         var iterator = list.listIterator(0); // position at start
  66         try {
  67             iterator.previous();
  68             fail("Failing checkPrevious Test - NoSuchElementException should have been thrown");
  69         } catch (NoSuchElementException e) {
  70             var cause = e.getCause();
  71             assertNotNull(cause, "CheckPrevious Exception.getCause()");
  72             assertTrue(cause instanceof IndexOutOfBoundsException, "CheckPrevious Exception.getCause() should be an IndexOutOfBoundsException");
  73             var msg = e.getMessage();
  74             assertNotNull(msg, "CheckPrevious Exception.getMessage()");
  75             assertTrue(msg.contains("IndexOutOfBoundsException"), "CheckPrevious Exception.getMessage() should contain the string 'IndexOutOfBoundsException'");
  76         }
  77     }
  78 }