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/*
* Copyright 2015 Open Networking Laboratory
*
* Licensed 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.onosproject.openflow.controller.impl;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBuffers;
import org.junit.Test;
import org.onosproject.openflow.ChannelAdapter;
import org.onosproject.openflow.ChannelHandlerContextAdapter;
import org.projectfloodlight.openflow.protocol.OFHello;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.instanceOf;
import static org.hamcrest.Matchers.notNullValue;
import static org.hamcrest.Matchers.nullValue;
/**
* Tests for the OpenFlow message decoder.
*/
public class OFMessageDecoderTest {
static class ConnectedChannel extends ChannelAdapter {
@Override
public boolean isConnected() {
return true;
}
}
private ChannelBuffer getHelloMessageBuffer() {
// OFHello, OF version 1, xid of 0, total of 8 bytes
byte[] messageData = {0x1, 0x0, 0x0, 0x8, 0x0, 0x0, 0x0, 0x0};
ChannelBuffer channelBuffer = ChannelBuffers.dynamicBuffer();
channelBuffer.writeBytes(messageData);
return channelBuffer;
}
/**
* Tests decoding a message on a closed channel.
*
* @throws Exception when an exception is thrown from the decoder
*/
@Test
public void testDecodeNoChannel() throws Exception {
OFMessageDecoder decoder = new OFMessageDecoder();
ChannelBuffer channelBuffer = getHelloMessageBuffer();
Object message =
decoder.decode(new ChannelHandlerContextAdapter(),
new ChannelAdapter(),
channelBuffer);
assertThat(message, nullValue());
}
/**
* Tests decoding a message.
*
* @throws Exception when an exception is thrown from the decoder
*/
@Test
public void testDecode() throws Exception {
OFMessageDecoder decoder = new OFMessageDecoder();
ChannelBuffer channelBuffer = getHelloMessageBuffer();
Object message =
decoder.decode(new ChannelHandlerContextAdapter(),
new ConnectedChannel(),
channelBuffer);
assertThat(message, notNullValue());
assertThat(message, instanceOf(OFHello.class));
}
}
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