package org.openflow.protocol;
import java.nio.ByteBuffer;
import java.util.List;
import junit.framework.TestCase;
import org.openflow.protocol.OFError.OFErrorType;
import org.openflow.protocol.OFError.OFHelloFailedCode;
import org.openflow.protocol.factory.BasicFactory;
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((short) OFErrorType.OFPET_HELLO_FAILED.ordinal());
msg.setErrorCode((short) OFHelloFailedCode.OFPHFC_INCOMPATIBLE
.ordinal());
ByteBuffer bb = ByteBuffer.allocate(1024);
bb.clear();
msg.writeTo(bb);
bb.flip();
msg.readFrom(bb);
TestCase.assertEquals((short) OFErrorType.OFPET_HELLO_FAILED.ordinal(),
msg.getErrorType());
TestCase.assertEquals((short) OFHelloFailedCode.OFPHFC_INCOMPATIBLE
.ordinal(), msg.getErrorType());
TestCase.assertNull(msg.getOffendingMsg());
msg.setOffendingMsg(new OFHello());
bb.clear();
msg.writeTo(bb);
bb.flip();
msg.readFrom(bb);
TestCase.assertEquals((short) OFErrorType.OFPET_HELLO_FAILED.ordinal(),
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() {
// 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 = new BasicFactory();
ByteBuffer oferrorBuf = ByteBuffer.wrap(oferrorRaw);
List<OFMessage> msgs = factory.parseMessages(oferrorBuf,
oferrorRaw.length);
TestCase.assertEquals(1, msgs.size());
OFMessage msg = msgs.get(0);
TestCase.assertEquals(76, msg.getLengthU());
ByteBuffer out = ByteBuffer.allocate(1024);
msg.writeTo(out);
TestCase.assertEquals(76, out.position());
}
}