/*
* Copyright 2012 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package org.jboss.netty.handler.codec.frame;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.handler.codec.embedder.CodecEmbedderException;
import org.jboss.netty.handler.codec.embedder.DecoderEmbedder;
import org.jboss.netty.util.CharsetUtil;
import org.junit.Assert;
import org.junit.Test;
public class LengthFieldBasedFrameDecoderTest {
@Test
public void testFailSlowTooLongFrameRecovery() throws Exception {
DecoderEmbedder<ChannelBuffer> embedder = new DecoderEmbedder<ChannelBuffer>(
new LengthFieldBasedFrameDecoder(5, 0, 4, 0, 4));
for (int i = 0; i < 2; i ++) {
embedder.offer(ChannelBuffers.wrappedBuffer(new byte[] { 0, 0, 0, 2 }));
try {
embedder.offer(ChannelBuffers.wrappedBuffer(new byte[] { 0, 0 }));
Assert.fail(CodecEmbedderException.class.getSimpleName() + " must be raised.");
} catch (CodecEmbedderException e) {
Assert.assertTrue(e.getCause() instanceof TooLongFrameException);
// Expected
}
embedder.offer(ChannelBuffers.wrappedBuffer(new byte[] { 0, 0, 0, 1, 'A' }));
ChannelBuffer buf = embedder.poll();
Assert.assertEquals("A", buf.toString(CharsetUtil.ISO_8859_1));
}
}
@Test
public void testFailFastTooLongFrameRecovery() throws Exception {
DecoderEmbedder<ChannelBuffer> embedder = new DecoderEmbedder<ChannelBuffer>(
new LengthFieldBasedFrameDecoder(5, 0, 4, 0, 4, true));
for (int i = 0; i < 2; i ++) {
try {
embedder.offer(ChannelBuffers.wrappedBuffer(new byte[] { 0, 0, 0, 2 }));
Assert.fail(CodecEmbedderException.class.getSimpleName() + " must be raised.");
} catch (CodecEmbedderException e) {
Assert.assertTrue(e.getCause() instanceof TooLongFrameException);
// Expected
}
embedder.offer(ChannelBuffers.wrappedBuffer(new byte[] { 0, 0, 0, 0, 0, 1, 'A' }));
ChannelBuffer buf = embedder.poll();
Assert.assertEquals("A", buf.toString(CharsetUtil.ISO_8859_1));
}
}
}