90 lines
3.0 KiB
Java
90 lines
3.0 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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* @summary Check that array-crossing surrogate pairs are handled properly
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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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public class Surrogates {
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static PrintStream log = System.err;
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static char[] input;
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static byte[] output;
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static final int LEN = 128;
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static void initData() throws IOException {
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StringBuffer sb = new StringBuffer();
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for (int i = 0; i < LEN; i++) {
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int c = Character.MIN_SUPPLEMENTARY_CODE_POINT + 1;
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sb.append(Character.toChars(c));
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}
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input = sb.toString().toCharArray();
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ByteArrayOutputStream bos = new ByteArrayOutputStream();
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OutputStreamWriter osw
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= new OutputStreamWriter(bos, Charset.forName("UTF-8"));
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osw.write(input);
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osw.close();
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output = bos.toByteArray();
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}
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static void testLeftovers(boolean doMalformed)
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throws Exception
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{
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log.print("Leftover surrogates, doMalformed = " + doMalformed);
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ByteArrayOutputStream bos = new ByteArrayOutputStream();
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OutputStreamWriter osw
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= new OutputStreamWriter(bos, Charset.forName("UTF-8"));
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for (int i = 0; i < input.length; i += 7)
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osw.write(input, i, Math.min(input.length - i, 7));
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if (doMalformed)
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osw.write(input, 0, 1);
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osw.close();
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byte[] result = bos.toByteArray();
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// Ignore a trailing '?' if we wrote a malformed final surrogate
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int rl = result.length + (doMalformed ? -1 : 0);
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if (rl != output.length)
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throw new Exception("Incorrect result length "
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+ rl + ", expected " + output.length);
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for (int i = 0; i < output.length; i++)
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if (result[i] != output[i])
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throw new Exception("Unexpected result value at index " + i);
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log.println(": Passed");
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}
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public static void main(String[] args) throws Exception {
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initData();
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testLeftovers(false);
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testLeftovers(true);
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}
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}
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