java-topology/test/jdk/java/nio/charset/Charset/DefaultCharsetTest.java
russell@unturf.com 0a580b313d undefect. CWE-407 — 63 sites patched across 27 ecosystems
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.
2026-03-26 17:11:57 -04:00

98 lines
3.6 KiB
Java

/*
* Copyright (c) 2017, 2026, 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
* @bug 4772857
* @summary Unit test for Charset.defaultCharset
* @requires os.family == "linux"
* @library /test/lib
* @build jdk.test.lib.Utils
* jdk.test.lib.Asserts
* jdk.test.lib.JDKToolFinder
* jdk.test.lib.JDKToolLauncher
* jdk.test.lib.Platform
* jdk.test.lib.process.*
* Default
* @run junit DefaultCharsetTest
*/
import java.util.Map;
import java.util.stream.Stream;
import jdk.test.lib.process.ProcessTools;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;
import static org.junit.jupiter.api.Assertions.assertTrue;
public class DefaultCharsetTest {
private static final ProcessBuilder pb
= ProcessTools.createTestJavaProcessBuilder(Default.class.getName());
private static final Map<String, String> env = pb.environment();
private static String UNSUPPORTED = null;
@BeforeAll
public static void checkSupports() throws Exception {
UNSUPPORTED = runWithLocale("nonexist");
}
public static Stream<Arguments> locales() {
return Stream.of(
Arguments.of("en_US", "iso-8859-1"),
Arguments.of("ja_JP.utf8", "utf-8"),
Arguments.of("tr_TR", "iso-8859-9"),
Arguments.of("C", "us-ascii"),
Arguments.of("ja_JP", "x-euc-jp-linux"),
Arguments.of("ja_JP.eucjp", "x-euc-jp-linux"),
Arguments.of("ja_JP.ujis", "x-euc-jp-linux"),
Arguments.of("ja_JP.utf8", "utf-8")
);
}
@ParameterizedTest
@MethodSource("locales")
public void testDefaultCharset(String locale, String expectedCharset) throws Exception {
String actual = runWithLocale(locale);
if (UNSUPPORTED.equals(actual)) {
System.out.println(locale + ": Locale not supported, skipping...");
} else {
assertTrue(actual.equalsIgnoreCase(expectedCharset),
String.format("LC_ALL = %s, got defaultCharset = %s, "
+ "NOT as expected %s",
locale, actual, expectedCharset));
}
}
private static String runWithLocale(String locale) throws Exception {
env.remove("LC_ALL");
env.put("LC_ALL", locale);
return ProcessTools.executeProcess(pb)
.shouldHaveExitValue(0)
.getStdout()
.replace(System.lineSeparator(), "");
}
}