/*
* 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 io.netty.handler.codec.frame;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.embedded.EmbeddedChannel;
import io.netty.handler.codec.DecoderException;
import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
import io.netty.handler.codec.TooLongFrameException;
import io.netty.util.CharsetUtil;
import org.junit.Test;
import static io.netty.util.ReferenceCountUtil.releaseLater;
import static org.junit.Assert.*;
public class LengthFieldBasedFrameDecoderTest {
@Test
public void testFailSlowTooLongFrameRecovery() throws Exception {
EmbeddedChannel ch = new EmbeddedChannel(
new LengthFieldBasedFrameDecoder(5, 0, 4, 0, 4, false));
for (int i = 0; i < 2; i ++) {
assertFalse(ch.writeInbound(Unpooled.wrappedBuffer(new byte[] { 0, 0, 0, 2 })));
try {
assertTrue(ch.writeInbound(Unpooled.wrappedBuffer(new byte[] { 0, 0 })));
fail(DecoderException.class.getSimpleName() + " must be raised.");
} catch (TooLongFrameException e) {
// Expected
}
ch.writeInbound(Unpooled.wrappedBuffer(new byte[] { 0, 0, 0, 1, 'A' }));
ByteBuf buf = releaseLater((ByteBuf) ch.readInbound());
assertEquals("A", buf.toString(CharsetUtil.ISO_8859_1));
buf.release();
}
}
@Test
public void testFailFastTooLongFrameRecovery() throws Exception {
EmbeddedChannel ch = new EmbeddedChannel(
new LengthFieldBasedFrameDecoder(5, 0, 4, 0, 4));
for (int i = 0; i < 2; i ++) {
try {
assertTrue(ch.writeInbound(Unpooled.wrappedBuffer(new byte[] { 0, 0, 0, 2 })));
fail(DecoderException.class.getSimpleName() + " must be raised.");
} catch (TooLongFrameException e) {
// Expected
}
ch.writeInbound(Unpooled.wrappedBuffer(new byte[] { 0, 0, 0, 0, 0, 1, 'A' }));
ByteBuf buf = releaseLater((ByteBuf) ch.readInbound());
assertEquals("A", buf.toString(CharsetUtil.ISO_8859_1));
buf.release();
}
}
}