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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.
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russell@unturf.com 2026-03-26 17:11:57 -04:00
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test/jdk/java/text/CharacterIterator/CharacterIteratorTest.java Normal file
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/*
* Copyright (c) 1997, 2023, Oracle and/or its affiliates. All rights reserved.
* 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.
*/
/*
* @test
* @summary test for Character Iterator
* @run junit CharacterIteratorTest
*/
/*
* 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 and, per its terms, should not be removed:
*
* (C) Copyright Taligent, Inc. 1996, 1997 - All Rights Reserved
* (C) Copyright IBM Corp. 1996 - 1998 - All Rights Reserved
*
* Portions copyright (c) 2007 Sun Microsystems, Inc.
* All Rights Reserved.
*
* The original version of this source code and documentation
* is copyrighted and owned by Taligent, Inc., a wholly-owned
* subsidiary of IBM. These materials are provided under terms
* of a License Agreement between Taligent and Sun. This technology
* is protected by multiple US and International patents.
*
* This notice and attribution to Taligent may not be removed.
* Taligent is a registered trademark of Taligent, Inc.
*
* Permission to use, copy, modify, and distribute this software
* and its documentation for NON-COMMERCIAL purposes and without
* fee is hereby granted provided that this copyright notice
* appears in all copies. Please refer to the file "copyright.html"
* for further important copyright and licensing information.
*
* SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
* THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
*
*/
import java.text.*;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.fail;
public class CharacterIteratorTest {
public CharacterIteratorTest() {
}
@Test
public void TestConstructionAndEquality() {
String testText = "Now is the time for all good men to come to the aid of their country.";
String testText2 = "Don't bother using this string.";
CharacterIterator test1 = new StringCharacterIterator(testText);
CharacterIterator test2 = new StringCharacterIterator(testText, 5);
CharacterIterator test3 = new StringCharacterIterator(testText, 2, 20, 5);
CharacterIterator test4 = new StringCharacterIterator(testText2);
CharacterIterator test5 = (CharacterIterator)test1.clone();
if (test1.equals(test2) || test1.equals(test3) || test1.equals(test4))
fail("Construation or equals() failed: Two unequal iterators tested equal");
if (!test1.equals(test5))
fail("clone() or equals() failed: Two clones tested unequal");
if (test1.hashCode() == test2.hashCode() || test1.hashCode() == test3.hashCode()
|| test1.hashCode() == test4.hashCode())
fail("hash() failed: different objects have same hash code");
if (test1.hashCode() != test5.hashCode())
fail("hash() failed: identical objects have different hash codes");
test1.setIndex(5);
if (!test1.equals(test2) || test1.equals(test5))
fail("setIndex() failed");
}
@Test
public void TestIteration() {
String text = "Now is the time for all good men to come to the aid of their country.";
CharacterIterator iter = new StringCharacterIterator(text, 5);
if (iter.current() != text.charAt(5))
fail("Iterator didn't start out in the right place.");
char c = iter.first();
int i = 0;
if (iter.getBeginIndex() != 0 || iter.getEndIndex() != text.length())
fail("getBeginIndex() or getEndIndex() failed");
System.out.println("Testing forward iteration...");
do {
if (c == CharacterIterator.DONE && i != text.length())
fail("Iterator reached end prematurely");
else if (c != text.charAt(i))
fail("Character mismatch at position " + i + ", iterator has " + c +
", string has " + text.charAt(c));
if (iter.current() != c)
fail("current() isn't working right");
if (iter.getIndex() != i)
fail("getIndex() isn't working right");
if (c != CharacterIterator.DONE) {
c = iter.next();
i++;
}
} while (c != CharacterIterator.DONE);
c = iter.last();
i = text.length() - 1;
System.out.println("Testing backward iteration...");
do {
if (c == CharacterIterator.DONE && i >= 0)
fail("Iterator reached end prematurely");
else if (c != text.charAt(i))
fail("Character mismatch at position " + i + ", iterator has " + c +
", string has " + text.charAt(c));
if (iter.current() != c)
fail("current() isn't working right");
if (iter.getIndex() != i)
fail("getIndex() isn't working right");
if (c != CharacterIterator.DONE) {
c = iter.previous();
i--;
}
} while (c != CharacterIterator.DONE);
iter = new StringCharacterIterator(text, 5, 15, 10);
if (iter.getBeginIndex() != 5 || iter.getEndIndex() != 15)
fail("creation of a restricted-range iterator failed");
if (iter.getIndex() != 10 || iter.current() != text.charAt(10))
fail("starting the iterator in the middle didn't work");
c = iter.first();
i = 5;
System.out.println("Testing forward iteration over a range...");
do {
if (c == CharacterIterator.DONE && i != 15)
fail("Iterator reached end prematurely");
else if (c != text.charAt(i))
fail("Character mismatch at position " + i + ", iterator has " + c +
", string has " + text.charAt(c));
if (iter.current() != c)
fail("current() isn't working right");
if (iter.getIndex() != i)
fail("getIndex() isn't working right");
if (c != CharacterIterator.DONE) {
c = iter.next();
i++;
}
} while (c != CharacterIterator.DONE);
c = iter.last();
i = 14;
System.out.println("Testing backward iteration over a range...");
do {
if (c == CharacterIterator.DONE && i >= 5)
fail("Iterator reached end prematurely");
else if (c != text.charAt(i))
fail("Character mismatch at position " + i + ", iterator has " + c +
", string has " + text.charAt(c));
if (iter.current() != c)
fail("current() isn't working right");
if (iter.getIndex() != i)
fail("getIndex() isn't working right");
if (c != CharacterIterator.DONE) {
c = iter.previous();
i--;
}
} while (c != CharacterIterator.DONE);
}
/**
* @bug 4082050 4078261 4078255
*/
@Test
public void TestPathologicalCases() {
String text = "This is only a test.";
/*
This test is commented out until API-change approval for bug #4082050 goes through.
// test for bug #4082050 (don't get an error if begin == end, even though all
// operations on the iterator will cause exceptions)
// [I actually fixed this so that you CAN create an iterator with begin == end,
// but all operations on it return DONE.]
CharacterIterator iter = new StringCharacterIterator(text, 5, 5, 5);
if (iter.first() != CharacterIterator.DONE
|| iter.next() != CharacterIterator.DONE
|| iter.last() != CharacterIterator.DONE
|| iter.previous() != CharacterIterator.DONE
|| iter.current() != CharacterIterator.DONE
|| iter.getIndex() != 5)
fail("Got something other than DONE when performing operations on an empty StringCharacterIterator");
*/
CharacterIterator iter = null;
// if we try to construct a StringCharacterIterator with an endIndex that's off
// the end of the String under iterator, we're supposed to get an
// IllegalArgumentException
boolean gotException = false;
try {
iter = new StringCharacterIterator(text, 5, 100, 5);
}
catch (IllegalArgumentException e) {
gotException = true;
}
if (!gotException)
fail("StringCharacterIterator didn't throw an exception when given an invalid substring range.");
// test for bug #4078255 (getting wrong value from next() when we're at the end
// of the string)
iter = new StringCharacterIterator(text);
int expectedIndex = iter.getEndIndex();
int actualIndex;
iter.last();
actualIndex = iter.getIndex();
if (actualIndex != expectedIndex - 1)
fail("last() failed: expected " + (expectedIndex - 1) + ", got " + actualIndex);
iter.next();
actualIndex = iter.getIndex();
if (actualIndex != expectedIndex)
fail("next() after last() failed: expected " + expectedIndex + ", got " + actualIndex);
iter.next();
actualIndex = iter.getIndex();
if (actualIndex != expectedIndex)
fail("second next() after last() failed: expected " + expectedIndex + ", got " + actualIndex);
}
/*
* @bug 4123771 4051073
* #4123771 is actually a duplicate of bug #4051073, which was fixed some time ago, but
* no one ever added a regression test for it.
*/
@Test
public void TestBug4123771() {
String text = "Some string for testing";
StringCharacterIterator iter = new StringCharacterIterator(text);
int index = iter.getEndIndex();
try {
char c = iter.setIndex(index);
}
catch (Exception e) {
System.out.println("method setIndex(int position) throws unexpected exception " + e);
System.out.println(" position: " + index);
System.out.println(" getEndIndex(): " + iter.getEndIndex());
System.out.println(" text.length(): " + text.length());
fail(""); // re-throw the exception through our test framework
}
}
}