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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.
This commit is contained in:
russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
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130
test/jdk/java/lang/String/Indent.java Normal file
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/*
* Copyright (c) 2018, 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 Unit tests for String#indent
* @run main Indent
*/
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;
public class Indent {
static final List<String> ENDS = List.of("", "\n", " \n", "\n\n", "\n\n\n");
static final List<String> MIDDLES = List.of(
"",
"xyz",
" xyz",
" xyz",
"xyz ",
" xyz ",
" xyz ",
"xyz\u2022",
" xyz\u2022",
"xyz\u2022 ",
" xyz\u2022 ",
" // comment"
);
public static void main(String[] args) {
test1();
}
/*
* Test String#indent(int n) functionality.
*/
static void test1() {
for (int adjust : new int[] {-8, -7, -4, -3, -2, -1, 0, 1, 2, 3, 4, 7, 8}) {
for (String prefix : ENDS) {
for (String suffix : ENDS) {
for (String middle : MIDDLES) {
String input = prefix + " abc \n" + middle + "\n def \n" + suffix;
String output = input.indent(adjust);
Stream<String> stream = input.lines();
if (adjust > 0) {
final String spaces = " ".repeat(adjust);
stream = stream.map(s -> spaces + s);
} else if (adjust < 0) {
stream = stream.map(s -> s.substring(Math.min(-adjust, indexOfNonWhitespace(s))));
}
String expected = stream.collect(Collectors.joining("\n", "", "\n"));
if (!output.equals(expected)) {
report("String::indent(int n)",
"Result indentation not as expected", expected, output);
}
}
}
}
}
}
public static int indexOfNonWhitespace(String s) {
int left = 0;
while (left < s.length()) {
char ch = s.charAt(left);
if (ch != ' ' && ch != '\t' && !Character.isWhitespace(ch)) {
break;
}
left++;
}
return left;
}
private static String[] getBody(String[] inLines) {
int from = -1, to = -1;
for (int i = 0; i < inLines.length; i++) {
String line = inLines[i];
if (!line.isBlank()) {
if (from == -1) {
from = i;
}
to = i + 1;
}
}
return Arrays.copyOfRange(inLines, from, to);
}
/*
* Report difference in result.
*/
static void report(String test, String message, String input, String output) {
System.err.println("Testing " + test + ": " + message);
System.err.println();
System.err.println("Input: length = " + input.length());
System.err.println("_".repeat(40));
System.err.print(input.replaceAll(" ", "."));
System.err.println("_".repeat(40));
System.err.println();
System.err.println("Output: length = " + output.length());
System.err.println("_".repeat(40));
System.err.print(output.replaceAll(" ", "."));
System.err.println("_".repeat(40));
throw new RuntimeException();
}
}