105 lines
3.7 KiB
Java
105 lines
3.7 KiB
Java
/*
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* Copyright (c) 2008, 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 4867457
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@summary Check for correct byte buffer underflow handling in EUC-JP
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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 EUCJPUnderflowDecodeTest {
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public static void main(String[] args) throws Exception{
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ByteBuffer bb = ByteBuffer.allocateDirect(255);
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CharBuffer cc = CharBuffer.allocate(255);
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// Test both regular EUC-JP and Linux variant
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String[] charsetNames = { "EUC_JP", "EUC-JP-LINUX" };
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for (int i = 0 ; i < charsetNames.length; i++) {
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Charset cs = Charset.forName(charsetNames[i]);
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CharsetDecoder decoder = cs.newDecoder();
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bb.clear();
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cc.clear();
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// Fakes a partial 3 byte EUC_JP (JIS-X-0212 range)
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// encoded character/byte sequence
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bb.put((byte)0x8f);
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bb.put((byte)0xa2);
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bb.flip();
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// Now decode with endOfInput method param set to
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// indicate to decoder that there is more encoded
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// data to follow in a subsequent invocation
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CoderResult result = decoder.decode(bb, cc, false);
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// java.nio.charset.CharsetDecoder spec specifies
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// that the coder ought to return CoderResult.UNDERFLOW
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// when insufficient bytes have been supplied to complete
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// the decoding operation
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if (result != CoderResult.UNDERFLOW) {
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throw new Exception("test failed - UNDERFLOW not returned");
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}
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// Repeat the test with the lead byte (minus its pursuing
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// trail byte) for the EUC-JP 2 byte (JIS208) range
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decoder.reset();
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bb.clear();
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cc.clear();
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bb.put((byte)0xa1);
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bb.flip();
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result = decoder.decode(bb, cc, false);
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if (result != CoderResult.UNDERFLOW) {
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throw new Exception("test failed");
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}
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// finally ensure that a valid JIS208 range EUC-JP
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// 2 byte value is correctly decoded when it is presented
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// at the trailing bounds of a ByteBuffer in the case where
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// charset decoder expects (endOfInput ==false) more
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//input to follow
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decoder.reset();
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bb.clear();
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cc.clear();
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bb.put((byte)0xa1);
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bb.put((byte)0xc0);
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bb.flip();
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result = decoder.decode(bb, cc, false);
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cc.flip();
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if (result != CoderResult.UNDERFLOW && cc.get() != '\uFF3c') {
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throw new Exception("test failed to decode EUC-JP (0xA1C0)");
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}
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}
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}
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}
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