russell@unturf.com
0a580b313d
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.
109 lines
3.8 KiB
Java
109 lines
3.8 KiB
Java
/*
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* Copyright (c) 2021, 2026, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.OutputStreamWriter;
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import java.io.PrintStream;
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import java.io.PrintWriter;
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import java.nio.charset.Charset;
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import java.nio.charset.StandardCharsets;
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import org.junit.jupiter.params.ParameterizedTest;
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import org.junit.jupiter.params.provider.MethodSource;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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/**
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* @test
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* @bug 8276970
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* @summary Test to verify the charset in PrintStream is inherited
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* in the OutputStreamWriter/PrintWriter
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* @run junit InheritEncodingTest
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*/
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public class InheritEncodingTest {
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private static final String testString = "\u00e9\u3042"; // "éあ"
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public static Charset[] encodings() {
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return new Charset[]{
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StandardCharsets.ISO_8859_1,
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StandardCharsets.US_ASCII,
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StandardCharsets.UTF_8,
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StandardCharsets.UTF_16,
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StandardCharsets.UTF_16BE,
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StandardCharsets.UTF_16LE
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};
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}
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@ParameterizedTest
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@MethodSource("encodings")
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public void testOutputStreamWriter(Charset stdCharset) throws IOException {
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var ba = new ByteArrayOutputStream();
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var ps = new PrintStream(ba, true, stdCharset);
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var expected = new String(testString.getBytes(stdCharset), stdCharset);
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// tests OutputStreamWriter's encoding explicitly
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var osw = new OutputStreamWriter(ps);
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assertEquals(stdCharset, Charset.forName(osw.getEncoding()));
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// tests roundtrip result
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osw.write(testString);
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osw.flush();
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var result = ba.toString(stdCharset);
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assertEquals(expected, result);
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}
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@ParameterizedTest
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@MethodSource("encodings")
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public void testPrintWriter(Charset stdCharset) throws IOException {
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var ba = new ByteArrayOutputStream();
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var ps = new PrintStream(ba, true, stdCharset);
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var expected = new String(testString.getBytes(stdCharset), stdCharset);
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// tests roundtrip result
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var pw = new PrintWriter(ps);
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pw.write(testString);
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pw.flush();
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var result = ba.toString(stdCharset);
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assertEquals(expected, result);
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}
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@ParameterizedTest
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@MethodSource("encodings")
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public void testPrintStream(Charset stdCharset) throws IOException {
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var ba = new ByteArrayOutputStream();
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var ps = new PrintStream(ba, true, stdCharset);
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var expected = new String(testString.getBytes(stdCharset), stdCharset);
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// tests PrintStream's charset explicitly
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var psWrapper = new PrintStream(ps);
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assertEquals(stdCharset, psWrapper.charset());
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// tests roundtrip result
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psWrapper.print(testString);
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psWrapper.flush();
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var result = ba.toString(stdCharset);
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assertEquals(expected, result);
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}
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}
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