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/*
* Copyright 2014-2015 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.onlab.packet.ndp;
import org.junit.BeforeClass;
import org.junit.Test;
import org.onlab.packet.DeserializationException;
import org.onlab.packet.Deserializer;
import org.onlab.packet.MacAddress;
import org.onlab.packet.PacketTestUtils;
import java.nio.ByteBuffer;
import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
/**
* Tests for class {@link RouterAdvertisement}.
*/
public class RouterAdvertisementTest {
private static final MacAddress MAC_ADDRESS =
MacAddress.valueOf("11:22:33:44:55:66");
private static byte[] bytePacket;
private Deserializer<RouterAdvertisement> deserializer
= RouterAdvertisement.deserializer();
@BeforeClass
public static void setUpBeforeClass() throws Exception {
byte[] byteHeader = {
(byte) 0x03, (byte) 0xc0, (byte) 0x02, (byte) 0x58,
(byte) 0x00, (byte) 0x00, (byte) 0x03, (byte) 0xe8,
(byte) 0x00, (byte) 0x00, (byte) 0x01, (byte) 0xf4,
(byte) 0x02, (byte) 0x01, (byte) 0x11, (byte) 0x22,
(byte) 0x33, (byte) 0x44, (byte) 0x55, (byte) 0x66
};
bytePacket = new byte[byteHeader.length];
System.arraycopy(byteHeader, 0, bytePacket, 0, byteHeader.length);
}
/**
* Tests serialize and setters.
*/
@Test
public void testSerialize() {
RouterAdvertisement ra = new RouterAdvertisement();
ra.setCurrentHopLimit((byte) 3);
ra.setMFlag((byte) 1);
ra.setOFlag((byte) 1);
ra.setRouterLifetime((short) 0x258);
ra.setReachableTime(0x3e8);
ra.setRetransmitTimer(0x1f4);
ra.addOption(NeighborDiscoveryOptions.TYPE_TARGET_LL_ADDRESS,
MAC_ADDRESS.toBytes());
assertArrayEquals(ra.serialize(), bytePacket);
}
@Test
public void testDeserializeBadInput() throws Exception {
PacketTestUtils.testDeserializeBadInput(RouterAdvertisement.deserializer());
}
@Test
public void testDeserializeTruncated() throws Exception {
// Run the truncation test only on the RouterAdvertisement header
byte[] raHeader = new byte[RouterAdvertisement.HEADER_LENGTH];
ByteBuffer.wrap(bytePacket).get(raHeader);
PacketTestUtils.testDeserializeTruncated(RouterAdvertisement.deserializer(), raHeader);
}
/**
* Tests deserialize and getters.
*/
@Test
public void testDeserialize() throws DeserializationException {
RouterAdvertisement ra = deserializer.deserialize(bytePacket, 0, bytePacket.length);
assertThat(ra.getCurrentHopLimit(), is((byte) 3));
assertThat(ra.getMFlag(), is((byte) 1));
assertThat(ra.getOFlag(), is((byte) 1));
assertThat(ra.getRouterLifetime(), is((short) 0x258));
assertThat(ra.getReachableTime(), is(0x3e8));
assertThat(ra.getRetransmitTimer(), is(0x1f4));
// Check the option(s)
assertThat(ra.getOptions().size(), is(1));
NeighborDiscoveryOptions.Option option = ra.getOptions().get(0);
assertThat(option.type(),
is(NeighborDiscoveryOptions.TYPE_TARGET_LL_ADDRESS));
assertArrayEquals(option.data(), MAC_ADDRESS.toBytes());
}
/**
* Tests comparator.
*/
@Test
public void testEqual() {
RouterAdvertisement ra1 = new RouterAdvertisement();
ra1.setCurrentHopLimit((byte) 3);
ra1.setMFlag((byte) 1);
ra1.setOFlag((byte) 1);
ra1.setRouterLifetime((short) 0x258);
ra1.setReachableTime(0x3e8);
ra1.setRetransmitTimer(0x1f4);
ra1.addOption(NeighborDiscoveryOptions.TYPE_TARGET_LL_ADDRESS,
MAC_ADDRESS.toBytes());
RouterAdvertisement ra2 = new RouterAdvertisement();
ra2.setCurrentHopLimit((byte) 3);
ra2.setMFlag((byte) 0);
ra2.setOFlag((byte) 0);
ra2.setRouterLifetime((short) 0x1f4);
ra2.setReachableTime(0x3e8);
ra2.setRetransmitTimer(0x1f4);
ra2.addOption(NeighborDiscoveryOptions.TYPE_TARGET_LL_ADDRESS,
MAC_ADDRESS.toBytes());
assertTrue(ra1.equals(ra1));
assertFalse(ra1.equals(ra2));
}
}
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