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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 4867457
@summary Check for correct byte buffer underflow handling in EUC-JP
*/
import java.io.*;
import java.nio.*;
import java.nio.charset.*;
public class EUCJPUnderflowDecodeTest {
public static void main(String[] args) throws Exception{
ByteBuffer bb = ByteBuffer.allocateDirect(255);
CharBuffer cc = CharBuffer.allocate(255);
// Test both regular EUC-JP and Linux variant
String[] charsetNames = { "EUC_JP", "EUC-JP-LINUX" };
for (int i = 0 ; i < charsetNames.length; i++) {
Charset cs = Charset.forName(charsetNames[i]);
CharsetDecoder decoder = cs.newDecoder();
bb.clear();
cc.clear();
// Fakes a partial 3 byte EUC_JP (JIS-X-0212 range)
// encoded character/byte sequence
bb.put((byte)0x8f);
bb.put((byte)0xa2);
bb.flip();
// Now decode with endOfInput method param set to
// indicate to decoder that there is more encoded
// data to follow in a subsequent invocation
CoderResult result = decoder.decode(bb, cc, false);
// java.nio.charset.CharsetDecoder spec specifies
// that the coder ought to return CoderResult.UNDERFLOW
// when insufficient bytes have been supplied to complete
// the decoding operation
if (result != CoderResult.UNDERFLOW) {
throw new Exception("test failed - UNDERFLOW not returned");
}
// Repeat the test with the lead byte (minus its pursuing
// trail byte) for the EUC-JP 2 byte (JIS208) range
decoder.reset();
bb.clear();
cc.clear();
bb.put((byte)0xa1);
bb.flip();
result = decoder.decode(bb, cc, false);
if (result != CoderResult.UNDERFLOW) {
throw new Exception("test failed");
}
// finally ensure that a valid JIS208 range EUC-JP
// 2 byte value is correctly decoded when it is presented
// at the trailing bounds of a ByteBuffer in the case where
// charset decoder expects (endOfInput ==false) more
//input to follow
decoder.reset();
bb.clear();
cc.clear();
bb.put((byte)0xa1);
bb.put((byte)0xc0);
bb.flip();
result = decoder.decode(bb, cc, false);
cc.flip();
if (result != CoderResult.UNDERFLOW && cc.get() != '\uFF3c') {
throw new Exception("test failed to decode EUC-JP (0xA1C0)");
}
}
}
}
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