113 lines
4 KiB
Java
Executable file
113 lines
4 KiB
Java
Executable file
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2015 Ziver Koc
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package zutil.net.dns;
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import org.junit.Test;
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import zutil.parser.binary.BinaryStructOutputStream;
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import static zutil.net.dns.DNSPacketQuestion.*;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import static org.junit.Assert.assertArrayEquals;
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import static org.junit.Assert.assertEquals;
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/**
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* Created by Ziver
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*/
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public class DNSPacketTest {
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@Test
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public void writeHeaderTest() throws IOException {
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DNSPacketHeader header = new DNSPacketHeader();
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header.setDefaultQueryData();
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header.countQuestion = 1;
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byte[] data = BinaryStructOutputStream.serialize(header);
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assertEquals("header length", 12, data.length);
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assertEquals("Flag byte1", 0x00, data[2]);
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assertEquals("Flag byte2", 0x00, data[3]);
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assertEquals("Question count byte1", 0x00, data[4]);
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assertEquals("Question count byte2", 0x01, data[5]);
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}
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@Test
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public void readHheaderTest() throws IOException {
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DNSPacketHeader header = new DNSPacketHeader();
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header.setDefaultResponseData();
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header.countAnswerRecord = 1;
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byte[] data = BinaryStructOutputStream.serialize(header);
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assertEquals("header length", 12, data.length);
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assertEquals("Flag byte1", (byte) 0x84, data[2]);
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assertEquals("Flag byte2", (byte) 0x00, data[3]);
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assertEquals("Answer count byte1", 0x00, data[6]);
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assertEquals("Answer count byte2", 0x01, data[7]);
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}
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@Test
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public void writeDnsPacketHeaderTest() throws IOException {
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DNSPacket packet = new DNSPacket();
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packet.getHeader().setDefaultQueryData();
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ByteArrayOutputStream buffer = new ByteArrayOutputStream();
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packet.write(buffer);
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byte[] data = buffer.toByteArray();
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byte[] expected = {
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, // QDCOUNT
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0x00, 0x00, // ANCOUNT
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0x00, 0x00, // NSCOUNT
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0x00, 0x00, // ARCOUNT
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};
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assertArrayEquals(expected, data);
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}
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@Test
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public void writeDnsPacketTest() throws IOException {
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DNSPacket packet = new DNSPacket();
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packet.getHeader().setDefaultQueryData();
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packet.addQuestion(new DNSPacketQuestion("appletv.local", QTYPE_A, QCLASS_IN));
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ByteArrayOutputStream buffer = new ByteArrayOutputStream();
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packet.write(buffer);
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byte[] data = buffer.toByteArray();
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byte[] expected = {
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x01, // QDCOUNT
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0x00, 0x00, // ANCOUNT
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0x00, 0x00, // NSCOUNT
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0x00, 0x00, // ARCOUNT
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0x07, 0x61, 0x70, 0x70, 0x6c, 0x65, 0x74, 0x76, // "apple"
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0x05, 0x6c, 0x6f, 0x63, 0x61, 0x6c, // "local"
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0x00, // NULL
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0x00, 0x01, // QTYPE
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0x00, 0x01 // QCLASS
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};
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assertArrayEquals(expected, data);
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}
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}
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