/**
* Copyright (c) 2008 The Board of Trustees of The Leland Stanford Junior
* University
*
* 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.openflow.protocol;
import java.util.List;
import junit.framework.TestCase;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBuffers;
import org.openflow.protocol.OFError.OFErrorType;
import org.openflow.protocol.OFError.OFHelloFailedCode;
import org.openflow.protocol.factory.BasicFactory;
import org.openflow.protocol.factory.MessageParseException;
import org.openflow.protocol.factory.OFMessageFactory;
import org.openflow.util.OFTestCase;
public class OFErrorTest extends OFTestCase {
public void testWriteRead() throws Exception {
OFError msg = (OFError) messageFactory.getMessage(OFType.ERROR);
msg.setMessageFactory(messageFactory);
msg.setErrorType(OFErrorType.OFPET_HELLO_FAILED.getValue());
msg.setErrorCode((short) OFHelloFailedCode.OFPHFC_INCOMPATIBLE
.ordinal());
ChannelBuffer bb = ChannelBuffers.dynamicBuffer();
bb.clear();
msg.writeTo(bb);
msg.readFrom(bb);
TestCase.assertEquals(OFErrorType.OFPET_HELLO_FAILED.getValue(),
msg.getErrorType());
TestCase.assertEquals((short) OFHelloFailedCode.OFPHFC_INCOMPATIBLE
.ordinal(), msg.getErrorType());
TestCase.assertNull(msg.getOffendingMsg());
msg.setOffendingMsg(new OFHello());
bb.clear();
msg.writeTo(bb);
msg.readFrom(bb);
TestCase.assertEquals(OFErrorType.OFPET_HELLO_FAILED.getValue(),
msg.getErrorType());
TestCase.assertEquals((short) OFHelloFailedCode.OFPHFC_INCOMPATIBLE
.ordinal(), msg.getErrorType());
TestCase.assertNotNull(msg.getOffendingMsg());
TestCase.assertEquals(OFHello.MINIMUM_LENGTH,
msg.getOffendingMsg().length);
}
public void testGarbageAtEnd() throws MessageParseException {
// This is a OFError msg (12 bytes), that encaps a OFVendor msg (24
// bytes)
// AND some zeros at the end (40 bytes) for a total of 76 bytes
// THIS is what an NEC sends in reply to Nox's VENDOR request
byte[] oferrorRaw = { 0x01, 0x01, 0x00, 0x4c, 0x00, 0x00, 0x10,
(byte) 0xcc, 0x00, 0x01, 0x00, 0x01, 0x01, 0x04, 0x00, 0x18,
0x00, 0x00, 0x10, (byte) 0xcc, 0x00, 0x00, 0x23, 0x20, 0x00,
0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00 };
OFMessageFactory factory = BasicFactory.getInstance();
ChannelBuffer oferrorBuf =
ChannelBuffers.wrappedBuffer(oferrorRaw);
List<OFMessage> msg = factory.parseMessage(oferrorBuf);
TestCase.assertNotNull(msg);
TestCase.assertEquals(msg.size(), 1);
TestCase.assertEquals(76, msg.get(0).getLengthU());
ChannelBuffer out = ChannelBuffers.dynamicBuffer();
msg.get(0).writeTo(out);
TestCase.assertEquals(76, out.readableBytes());
}
}