EthernetTest.java
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/*
* Copyright 2015-present 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.onlab.packet;
import org.junit.Before;
import org.junit.Test;
import java.nio.ByteBuffer;
import static org.junit.Assert.assertEquals;
/**
* Unit tests for the Ethernet class.
*/
public class EthernetTest {
private MacAddress dstMac;
private MacAddress srcMac;
private short ethertype = 6;
private short vlan = 5;
private Deserializer<Ethernet> deserializer;
private byte[] byteHeader;
private byte[] vlanByteHeader;
@Before
public void setUp() {
deserializer = Ethernet.deserializer();
byte[] dstMacBytes = {
(byte) 0x88, (byte) 0x88, (byte) 0x88, (byte) 0x88, (byte) 0x88,
(byte) 0x88 };
dstMac = MacAddress.valueOf(dstMacBytes);
byte[] srcMacBytes = {
(byte) 0xaa, (byte) 0xaa, (byte) 0xaa, (byte) 0xaa, (byte) 0xaa,
(byte) 0xaa };
srcMac = MacAddress.valueOf(srcMacBytes);
// Create Ethernet byte array with no VLAN header
ByteBuffer bb = ByteBuffer.allocate(Ethernet.ETHERNET_HEADER_LENGTH);
bb.put(dstMacBytes);
bb.put(srcMacBytes);
bb.putShort(ethertype);
byteHeader = bb.array();
// Create Ethernet byte array with a VLAN header
bb = ByteBuffer.allocate(Ethernet.ETHERNET_HEADER_LENGTH + Ethernet.VLAN_HEADER_LENGTH);
bb.put(dstMacBytes);
bb.put(srcMacBytes);
bb.putShort(Ethernet.TYPE_VLAN);
bb.putShort(vlan);
bb.putShort(ethertype);
vlanByteHeader = bb.array();
}
@Test
public void testDeserializeBadInput() throws Exception {
PacketTestUtils.testDeserializeBadInput(deserializer);
}
@Test
public void testDeserializeTruncated() throws DeserializationException {
PacketTestUtils.testDeserializeTruncated(deserializer, vlanByteHeader);
}
@Test
public void testDeserializeNoVlan() throws Exception {
Ethernet eth = deserializer.deserialize(byteHeader, 0, byteHeader.length);
assertEquals(dstMac, eth.getDestinationMAC());
assertEquals(srcMac, eth.getSourceMAC());
assertEquals(Ethernet.VLAN_UNTAGGED, eth.getVlanID());
assertEquals(ethertype, eth.getEtherType());
}
@Test
public void testDeserializeWithVlan() throws Exception {
Ethernet eth = deserializer.deserialize(vlanByteHeader, 0, vlanByteHeader.length);
assertEquals(dstMac, eth.getDestinationMAC());
assertEquals(srcMac, eth.getSourceMAC());
assertEquals(vlan, eth.getVlanID());
assertEquals(ethertype, eth.getEtherType());
}
}