/**
*
*/
package javax.jmdns.test;
import static junit.framework.Assert.assertEquals;
import static junit.framework.Assert.assertNotNull;
import static junit.framework.Assert.assertTrue;
import java.io.IOException;
import java.net.DatagramPacket;
import java.util.Date;
import javax.jmdns.impl.DNSIncoming;
import javax.jmdns.impl.DNSOutgoing;
import javax.jmdns.impl.DNSQuestion;
import javax.jmdns.impl.DNSRecord;
import javax.jmdns.impl.constants.DNSConstants;
import javax.jmdns.impl.constants.DNSRecordClass;
import javax.jmdns.impl.constants.DNSRecordType;
import org.junit.Before;
import org.junit.Test;
/**
*
*/
public class DNSMessageTest {
@Before
public void setup() {
//
}
@Test
public void testCreateQuery() throws IOException {
String serviceName = "_00000000-0b44-f234-48c8-071c565644b3._sub._home-sharing._tcp.local.";
DNSOutgoing out = new DNSOutgoing(DNSConstants.FLAGS_QR_QUERY);
assertNotNull("Could not create the outgoing message", out);
out.addQuestion(DNSQuestion.newQuestion(serviceName, DNSRecordType.TYPE_ANY, DNSRecordClass.CLASS_IN, true));
byte[] data = out.data();
assertNotNull("Could not encode the outgoing message", data);
byte[] expected = new byte[] { 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x25, 0x5f, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x2d, 0x30, 0x62, 0x34, 0x34, 0x2d, 0x66, 0x32, 0x33, 0x34, 0x2d, 0x34, 0x38, 0x63, 0x38,
0x2d, 0x30, 0x37, 0x31, 0x63, 0x35, 0x36, 0x35, 0x36, 0x34, 0x34, 0x62, 0x33, 0x4, 0x5f, 0x73, 0x75, 0x62, 0xd, 0x5f, 0x68, 0x6f, 0x6d, 0x65, 0x2d, 0x73, 0x68, 0x61, 0x72, 0x69, 0x6e, 0x67, 0x4, 0x5f, 0x74, 0x63, 0x70, 0x5, 0x6c,
0x6f, 0x63, 0x61, 0x6c, 0x0, 0x0, (byte) 0xff, 0x0, 0x1 };
for (int i = 0; i < data.length; i++) {
assertEquals("the encoded message is not what is expected at index " + i, expected[i], data[i]);
}
DatagramPacket packet = new DatagramPacket(data, 0, data.length);
DNSIncoming in = new DNSIncoming(packet);
assertTrue("Wrong packet type.", in.isQuery());
assertEquals("Wrong number of questions.", 1, in.getNumberOfQuestions());
for (DNSQuestion question : in.getQuestions()) {
assertEquals("Wrong question name.", serviceName, question.getName());
}
}
@Test
public void testCreateAnswer() throws IOException {
String serviceType = "_home-sharing._tcp.local.";
String serviceName = "Pierre." + serviceType;
DNSOutgoing out = new DNSOutgoing(DNSConstants.FLAGS_QR_RESPONSE | DNSConstants.FLAGS_AA, false);
assertNotNull("Could not create the outgoing message", out);
out.addQuestion(DNSQuestion.newQuestion(serviceName, DNSRecordType.TYPE_ANY, DNSRecordClass.CLASS_IN, true));
long now = (new Date()).getTime();
out.addAnswer(new DNSRecord.Pointer(serviceType, DNSRecordClass.CLASS_IN, true, DNSConstants.DNS_TTL, serviceName), now);
out.addAuthorativeAnswer(new DNSRecord.Service(serviceType, DNSRecordClass.CLASS_IN, true, DNSConstants.DNS_TTL, 1, 20, 8080, "panoramix.local."));
byte[] data = out.data();
assertNotNull("Could not encode the outgoing message", data);
// byte[] expected = new byte[] { 0x0, 0x0, (byte) 0x84, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x6, 0x50, 0x69, 0x65, 0x72, 0x72, 0x65, 0xd, 0x5f, 0x68, 0x6f, 0x6d, 0x65, 0x2d, 0x73, 0x68, 0x61, 0x72, 0x69, 0x6e, 0x67, 0x4, 0x5f, 0x74,
// 0x63, 0x70, 0x5, 0x6c, 0x6f, 0x63, 0x61, 0x6c, 0x0, 0x0, (byte) 0xff, 0x0, 0x1, (byte) 0xc0, 0x13, 0x0, 0xc, 0x0, 0x1, 0x0, 0x0, 0xe, 0xf, 0x0, 0x21, 0x6, 0x50, 0x69, 0x65, 0x72, 0x72, 0x65, 0xd, 0x5f, 0x68, 0x6f, 0x6d, 0x65, 0x2d,
// 0x73, 0x68, 0x61, 0x72, 0x69, 0x6e, 0x67, 0x4, 0x5f, 0x74, 0x63, 0x70, 0x5, 0x6c, 0x6f, 0x63, 0x61, 0x6c, 0x0, (byte) 0xc0, 0x13, 0x0, 0x21, 0x0, 0x1, 0x0, 0x0, 0xe, 0xf, 0x0, 0x17, 0x0, 0x1, 0x0, 0x14, 0x1f, (byte) 0x90, 0x9, 0x70,
// 0x61, 0x6e, 0x6f, 0x72, 0x61, 0x6d, 0x69, 0x78, 0x5, 0x6c, 0x6f, 0x63, 0x61, 0x6c, 0x0 };
// for (int i = 0; i < data.length; i++)
// {
// assertEquals("the encoded message is not what is expected at index " + i, expected[i], data[i]);
// }
DatagramPacket packet = new DatagramPacket(data, 0, data.length);
DNSIncoming in = new DNSIncoming(packet);
assertTrue("Wrong packet type.", in.isResponse());
assertEquals("Wrong number of questions.", 1, in.getNumberOfQuestions());
assertEquals("Wrong number of answers.", 1, in.getNumberOfAnswers());
assertEquals("Wrong number of authorities.", 1, in.getNumberOfAuthorities());
for (DNSQuestion question : in.getQuestions()) {
assertEquals("Wrong question name.", serviceName, question.getName());
}
}
protected void print(byte[] data) {
System.out.print("{");
for (int i = 0; i < data.length; i++) {
int value = data[i] & 0xFF;
if (i > 0) {
System.out.print(",");
}
System.out.print(" 0x");
System.out.print(Integer.toHexString(value));
if (i % 20 == 0) {
System.out.print("\n");
}
}
System.out.print("}\n");
}
}