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A test case for NETTY-142 ReplayingDecoder calls decodeLast with unreplayable buffer

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Trustin Lee 2009-04-08 07:24:14 +00:00
parent d0ee16781a
commit e3fc229b03
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src/test/java/org/jboss/netty/handler/codec/replay/ReplayingDecoderTest.java Normal file
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/*
* JBoss, Home of Professional Open Source
* Copyright 2005-2008, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.netty.handler.codec.replay;
import static org.junit.Assert.*;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBufferIndexFinder;
import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.handler.codec.embedder.DecoderEmbedder;
import org.junit.Test;
/**
* @author The Netty Project (netty-dev@lists.jboss.org)
* @author Trustin Lee (tlee@redhat.com)
* @version $Rev$, $Date$
*/
public class ReplayingDecoderTest {
@Test
public void testLineProtocol() {
DecoderEmbedder<ChannelBuffer> e = new DecoderEmbedder<ChannelBuffer>(
new LineDecoder());
// Ordinary input
e.offer(ChannelBuffers.wrappedBuffer(new byte[] { 'A' }));
assertNull(e.poll());
e.offer(ChannelBuffers.wrappedBuffer(new byte[] { 'B' }));
assertNull(e.poll());
e.offer(ChannelBuffers.wrappedBuffer(new byte[] { 'C' }));
assertNull(e.poll());
e.offer(ChannelBuffers.wrappedBuffer(new byte[] { '\n' }));
assertEquals(ChannelBuffers.wrappedBuffer(new byte[] { 'A', 'B', 'C' }), e.poll());
// Truncated input
e.offer(ChannelBuffers.wrappedBuffer(new byte[] { 'A' }));
assertNull(e.poll());
e.finish();
assertNull(e.poll());
}
private static final class LineDecoder extends ReplayingDecoder<VoidEnum> {
LineDecoder() {
super();
}
@Override
protected Object decode(ChannelHandlerContext ctx, Channel channel,
ChannelBuffer buffer, VoidEnum state) throws Exception {
ChannelBuffer msg = buffer.readBytes(ChannelBufferIndexFinder.LF);
buffer.skipBytes(1);
return msg;
}
}
}