UDPTest.java
4.92 KB
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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.apache.commons.lang3.StringUtils;
import org.junit.BeforeClass;
import org.junit.Test;
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 UDP}.
*/
public class UDPTest {
private static final byte[] IPV4_SOURCE_ADDRESS = {
(byte) 192, (byte) 168, (byte) 1, (byte) 1
};
private static final byte[] IPV4_DESTINATION_ADDRESS = {
(byte) 192, (byte) 168, (byte) 1, (byte) 2
};
private static final byte[] IPV6_SOURCE_ADDRESS = {
(byte) 0xfe, (byte) 0x80, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x01
};
private static final byte[] IPV6_DESTINATION_ADDRESS = {
(byte) 0xfe, (byte) 0x80, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x02
};
private static IPv4 ipv4 = new IPv4();
private static IPv6 ipv6 = new IPv6();
private static byte[] bytePacketUDP4 = {
(byte) 0x00, (byte) 0x50, // src port
(byte) 0x00, (byte) 0x60, // dst port
(byte) 0x00, (byte) 0x08, // length
(byte) 0x7b, (byte) 0xda, // checksum
};
private static byte[] bytePacketUDP6 = {
(byte) 0x00, (byte) 0x50, // src port
(byte) 0x00, (byte) 0x60, // dst port
(byte) 0x00, (byte) 0x08, // length
(byte) 0x02, (byte) 0x2a, // checksum
};
private static Deserializer<UDP> deserializer;
@BeforeClass
public static void setUpBeforeClass() throws Exception {
deserializer = UDP.deserializer();
ipv4.setSourceAddress(IPv4.toIPv4Address(IPV4_SOURCE_ADDRESS));
ipv4.setDestinationAddress(IPv4.toIPv4Address(IPV4_DESTINATION_ADDRESS));
ipv4.setProtocol(IPv4.PROTOCOL_UDP);
ipv6.setSourceAddress(IPV6_SOURCE_ADDRESS);
ipv6.setDestinationAddress(IPV6_DESTINATION_ADDRESS);
ipv6.setNextHeader(IPv6.PROTOCOL_UDP);
}
/**
* Tests serialize and setters.
*/
@Test
public void testSerialize() {
UDP udp = new UDP();
udp.setSourcePort(0x50);
udp.setDestinationPort(0x60);
udp.setParent(ipv4);
assertArrayEquals(bytePacketUDP4, udp.serialize());
udp.resetChecksum();
udp.setParent(ipv6);
assertArrayEquals(bytePacketUDP6, udp.serialize());
}
@Test
public void testDeserializeBadInput() throws Exception {
PacketTestUtils.testDeserializeBadInput(deserializer);
}
@Test
public void testDeserializeTruncated() throws Exception {
PacketTestUtils.testDeserializeTruncated(deserializer, bytePacketUDP4);
}
/**
* Tests deserialize and getters.
*/
@Test
public void testDeserialize() throws Exception {
UDP udp = deserializer.deserialize(bytePacketUDP4, 0, bytePacketUDP4.length);
assertThat(udp.getSourcePort(), is(0x50));
assertThat(udp.getDestinationPort(), is(0x60));
assertThat(udp.getLength(), is((short) 8));
assertThat(udp.getChecksum(), is((short) 0x7bda));
}
/**
* Tests comparator.
*/
@Test
public void testEqual() {
UDP udp1 = new UDP();
udp1.setSourcePort(0x50);
udp1.setDestinationPort(0x60);
UDP udp2 = new UDP();
udp2.setSourcePort(0x70);
udp2.setDestinationPort(0x60);
assertTrue(udp1.equals(udp1));
assertFalse(udp1.equals(udp2));
}
/**
* Tests toString.
*/
@Test
public void testToStringUdp() throws Exception {
UDP udp = deserializer.deserialize(bytePacketUDP4, 0, bytePacketUDP4.length);
String str = udp.toString();
assertTrue(StringUtils.contains(str, "sourcePort=" + 0x50));
assertTrue(StringUtils.contains(str, "destinationPort=" + 0x60));
assertTrue(StringUtils.contains(str, "length=" + (short) 8));
assertTrue(StringUtils.contains(str, "checksum=" + (short) 0x7bda));
}
}