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/*
* Copyright (c) 2008, 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
@bug 4896454
@summary Check GB18030 surrogate encoding/decoding handling
*/
import java.nio.*;
import java.nio.charset.*;
public class SurrogateGB18030Test {
public static void main(String[] args) throws Exception {
SurrogateGB18030Test test = new SurrogateGB18030Test();
test.roundtripTest();
/**
* Valid Surrogate pair and 4 byte GB18030 representation
*/
String inputString = "\uD800\uDC00";
byte[] expectedBytes = { (byte)0x90,
(byte)0x30,
(byte)0x81,
(byte)0x30
};
test.encodeTest(inputString, expectedBytes);
/**
* Vice-versa : check that 4 byte GB18030 value encodes correctly
*/
String expectedStr = "\uDBFF\uDFFF";
byte[] inputBytes = { (byte)0xe3,
(byte)0x32,
(byte)0x9a,
(byte)0x35
};
test.decodeTest(inputBytes, expectedStr);
}
private void roundtripTest() throws Exception
{
byte[] ba;
char[] pair = new char[2];
for (char high = '\ud800'; high <= '\udbff'; high++) {
for (char low = '\udc00'; low <= '\udfff'; low++) {
pair[0] = high;
pair[1] = low;
String s = new String(pair);
if (!s.equals(new String(s.getBytes("gb18030"), "gb18030")))
throw new Exception ("GB18030 roundtrip failure");
}
}
}
private void encodeTest(String inputString, byte[] expectedBytes)
throws Exception
{
byte[] encoded = inputString.getBytes("GB18030");
CharBuffer cb = CharBuffer.wrap(inputString.toCharArray());
ByteBuffer bb = ByteBuffer.allocate(4);
CharsetEncoder encoder = Charset.forName("GB18030").newEncoder();
encoder.encode(cb, bb, true);
bb.flip();
for (int i = 0 ; i < expectedBytes.length; i++) {
if (encoded[i] != expectedBytes[i]
|| bb.get() != expectedBytes[i])
throw new Exception ("GB18030 encode failure");
}
}
private void decodeTest(byte[] inputBytes, String expectedStr)
throws Exception
{
String s2 = new String(inputBytes, "GB18030");
CharsetDecoder decoder = Charset.forName("GB18030").newDecoder();
ByteBuffer bb = ByteBuffer.wrap(inputBytes);
CharBuffer cb = CharBuffer.allocate(2);
decoder.decode(bb, cb, true);
cb.flip();
for (int i = 0 ; i < expectedStr.length(); i++) {
if (expectedStr.charAt(i) != cb.get()
|| s2.charAt(i) != expectedStr.charAt(i))
throw new Exception ("GB18030 encode failure");
}
}
}
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