EthernetTest.java

/**
*    Copyright 2011, Big Switch Networks, Inc. 
*    Originally created by David Erickson, Stanford 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 net.floodlightcontroller.packet;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

import java.util.Arrays;

import org.junit.Test;

/**
 * @author David Erickson (daviderickson@cs.stanford.edu)
 *
 */
public class EthernetTest {
    @Test
    public void testToMACAddress() {
        byte[] address = new byte[] { 0x0, 0x11, 0x22, (byte) 0xff,
                (byte) 0xee, (byte) 0xdd};
        assertTrue(Arrays.equals(address, Ethernet
                .toMACAddress("00:11:22:ff:ee:dd")));
        assertTrue(Arrays.equals(address, Ethernet
                .toMACAddress("00:11:22:FF:EE:DD")));
    }

    @Test
    public void testSerialize() {
        Ethernet ethernet = new Ethernet()
            .setDestinationMACAddress("de:ad:be:ef:de:ad")
            .setSourceMACAddress("be:ef:de:ad:be:ef")
            .setEtherType((short) 0);
        byte[] expected = new byte[] { (byte) 0xde, (byte) 0xad, (byte) 0xbe,
                (byte) 0xef, (byte) 0xde, (byte) 0xad, (byte) 0xbe,
                (byte) 0xef, (byte) 0xde, (byte) 0xad, (byte) 0xbe,
                (byte) 0xef, 0x0, 0x0 };
        assertTrue(Arrays.equals(expected, ethernet.serialize()));
    }

    @Test
    public void testToLong() {
        assertEquals(
                281474976710655L,
                Ethernet.toLong(new byte[] { (byte) 0xff, (byte) 0xff,
                        (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff }));

        assertEquals(
                1103823438081L,
                Ethernet.toLong(new byte[] { (byte) 0x01, (byte) 0x01,
                        (byte) 0x01, (byte) 0x01, (byte) 0x01, (byte) 0x01 }));

        assertEquals(
                141289400074368L,
                Ethernet.toLong(new byte[] { (byte) 0x80, (byte) 0x80,
                        (byte) 0x80, (byte) 0x80, (byte) 0x80, (byte) 0x80 }));
    }
}