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/*
* Copyright (c) 2021, 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.
*/
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import static org.testng.Assert.assertEquals;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
/**
* @test
* @bug 8276970
* @summary Test to verify the charset in PrintStream is inherited
* in the OutputStreamWriter/PrintWriter
* @run testng InheritEncodingTest
*/
@Test
public class InheritEncodingTest {
private static final String testString = "\u00e9\u3042"; // "éあ"
@DataProvider
public Object[][] encodings() {
return new Object[][]{
{StandardCharsets.ISO_8859_1},
{StandardCharsets.US_ASCII},
{StandardCharsets.UTF_8},
{StandardCharsets.UTF_16},
{StandardCharsets.UTF_16BE},
{StandardCharsets.UTF_16LE},
};
}
@Test (dataProvider = "encodings")
public void testOutputStreamWriter(Charset stdCharset) throws IOException {
var ba = new ByteArrayOutputStream();
var ps = new PrintStream(ba, true, stdCharset);
var expected = new String(testString.getBytes(stdCharset), stdCharset);
// tests OutputStreamWriter's encoding explicitly
var osw = new OutputStreamWriter(ps);
assertEquals(Charset.forName(osw.getEncoding()), stdCharset);
// tests roundtrip result
osw.write(testString);
osw.flush();
var result = ba.toString(stdCharset);
assertEquals(result, expected);
}
@Test (dataProvider = "encodings")
public void testPrintWriter(Charset stdCharset) throws IOException {
var ba = new ByteArrayOutputStream();
var ps = new PrintStream(ba, true, stdCharset);
var expected = new String(testString.getBytes(stdCharset), stdCharset);
// tests roundtrip result
var pw = new PrintWriter(ps);
pw.write(testString);
pw.flush();
var result = ba.toString(stdCharset);
assertEquals(result, expected);
}
@Test (dataProvider = "encodings")
public void testPrintStream(Charset stdCharset) throws IOException {
var ba = new ByteArrayOutputStream();
var ps = new PrintStream(ba, true, stdCharset);
var expected = new String(testString.getBytes(stdCharset), stdCharset);
// tests PrintStream's charset explicitly
var psWrapper = new PrintStream(ps);
assertEquals(psWrapper.charset(), stdCharset);
// tests roundtrip result
psWrapper.print(testString);
psWrapper.flush();
var result = ba.toString(stdCharset);
assertEquals(result, expected);
}
}
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