94 lines
3.4 KiB
Java
94 lines
3.4 KiB
Java
/*
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* Copyright (c) 2010, 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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/* @test
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* @bug 4821286
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* @summary Check correctness of CharsetEncoder.isLegalReplacement(byte[])
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*/
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import java.io.*;
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import java.nio.*;
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import java.nio.charset.*;
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import java.util.*;
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public class IsLegalReplacement {
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static PrintStream out = System.err;
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static int errors = 0;
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static String toString(byte[] ba) {
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StringBuffer sb = new StringBuffer();
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for (int i = 0; i < ba.length; i++) {
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byte b = ba[i];
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if (i > 0)
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sb.append(' ');
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sb.append(Integer.toHexString((b >> 4) & 0xf));
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sb.append(Integer.toHexString((b >> 0) & 0xf));
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}
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return sb.toString();
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}
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static CoderResult ilr(String csn, byte[] repl) {
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CharsetDecoder dec = Charset.forName(csn).newDecoder();
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dec.onMalformedInput(CodingErrorAction.REPORT);
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dec.onUnmappableCharacter(CodingErrorAction.REPORT);
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ByteBuffer bb = ByteBuffer.wrap(repl);
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CharBuffer cb = CharBuffer.allocate((int)(bb.remaining()
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* dec.maxCharsPerByte()));
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return dec.decode(bb, cb, true);
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}
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static void test(String csn, byte[] repl, boolean expected)
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throws Exception
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{
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CharsetEncoder enc = Charset.forName(csn).newEncoder();
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out.print(csn + ": " + toString(repl) + ": ");
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if (enc.isLegalReplacement(repl) == expected) {
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out.print("Okay");
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} else {
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out.print("Wrong: Expected " + expected);
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errors++;
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}
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out.println(" (" + ilr(csn, repl) + ")");
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}
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public static void main(String[] args) throws Exception {
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test("UTF-16", new byte [] { (byte)0xd8, 0, (byte)0xdc, 0 }, true);
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test("UTF-16", new byte [] { (byte)0xdc, 0, (byte)0xd8, 0 }, false);
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test("UTF-16", new byte [] { (byte)0xd8, 0 }, false);
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test("UTF-16BE", new byte [] { (byte)0xd8, 0, (byte)0xdc, 0 }, true);
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test("UTF-16BE", new byte [] { (byte)0xdc, 0, (byte)0xd8, 0 }, false);
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test("UTF-16BE", new byte [] { (byte)0xd8, 0 }, false);
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test("UTF-16LE", new byte [] { 0, (byte)0xd8, 0, (byte)0xdc }, true);
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test("UTF-16LE", new byte [] { 0, (byte)0xdc, 0, (byte)0xd8 }, false);
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test("UTF-16LE", new byte [] { 0, (byte)0xd8 }, false);
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if (errors > 0)
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throw new Exception(errors + " error(s) occurred");
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}
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}
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