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/*
* Copyright (c) 2010, 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
* @summary Check that array-crossing surrogate pairs are handled properly
*/
import java.io.*;
import java.nio.*;
import java.nio.charset.*;
public class Surrogates {
static PrintStream log = System.err;
static char[] input;
static byte[] output;
static final int LEN = 128;
static void initData() throws IOException {
StringBuffer sb = new StringBuffer();
for (int i = 0; i < LEN; i++) {
int c = Character.MIN_SUPPLEMENTARY_CODE_POINT + 1;
sb.append(Character.toChars(c));
}
input = sb.toString().toCharArray();
ByteArrayOutputStream bos = new ByteArrayOutputStream();
OutputStreamWriter osw
= new OutputStreamWriter(bos, Charset.forName("UTF-8"));
osw.write(input);
osw.close();
output = bos.toByteArray();
}
static void testLeftovers(boolean doMalformed)
throws Exception
{
log.print("Leftover surrogates, doMalformed = " + doMalformed);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
OutputStreamWriter osw
= new OutputStreamWriter(bos, Charset.forName("UTF-8"));
for (int i = 0; i < input.length; i += 7)
osw.write(input, i, Math.min(input.length - i, 7));
if (doMalformed)
osw.write(input, 0, 1);
osw.close();
byte[] result = bos.toByteArray();
// Ignore a trailing '?' if we wrote a malformed final surrogate
int rl = result.length + (doMalformed ? -1 : 0);
if (rl != output.length)
throw new Exception("Incorrect result length "
+ rl + ", expected " + output.length);
for (int i = 0; i < output.length; i++)
if (result[i] != output[i])
throw new Exception("Unexpected result value at index " + i);
log.println(": Passed");
}
public static void main(String[] args) throws Exception {
initData();
testLeftovers(false);
testLeftovers(true);
}
}
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