6f00c5ebf6
Motivation: We did get a report for a leak on the CI. Modifications: Fix leak in test by correctly releasing the query Result: No more leaks
86 lines
3.6 KiB
Java
86 lines
3.6 KiB
Java
/*
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* Copyright 2021 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.handler.codec.dns;
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import io.netty.buffer.Unpooled;
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import io.netty.channel.embedded.EmbeddedChannel;
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import io.netty.util.ReferenceCountUtil;
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import org.junit.jupiter.api.Test;
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import java.util.Random;
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import static org.hamcrest.MatcherAssert.assertThat;
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import static org.hamcrest.Matchers.is;
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import static org.junit.jupiter.api.Assertions.assertFalse;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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public class TcpDnsTest {
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private static final String QUERY_DOMAIN = "www.example.com";
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private static final long TTL = 600;
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private static final byte[] QUERY_RESULT = new byte[]{(byte) 192, (byte) 168, 1, 1};
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@Test
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public void testQueryDecode() {
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EmbeddedChannel channel = new EmbeddedChannel(new TcpDnsQueryDecoder());
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int randomID = new Random().nextInt(60000 - 1000) + 1000;
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DnsQuery query = new DefaultDnsQuery(randomID, DnsOpCode.QUERY)
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.setRecord(DnsSection.QUESTION, new DefaultDnsQuestion(QUERY_DOMAIN, DnsRecordType.A));
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assertTrue(channel.writeInbound(query));
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DnsQuery readQuery = channel.readInbound();
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assertThat(readQuery, is(query));
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assertThat(readQuery.recordAt(DnsSection.QUESTION).name(), is(query.recordAt(DnsSection.QUESTION).name()));
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readQuery.release();
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assertFalse(channel.finish());
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}
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@Test
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public void testResponseEncode() {
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EmbeddedChannel channel = new EmbeddedChannel(new TcpDnsResponseEncoder());
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int randomID = new Random().nextInt(60000 - 1000) + 1000;
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DnsQuery query = new DefaultDnsQuery(randomID, DnsOpCode.QUERY)
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.setRecord(DnsSection.QUESTION, new DefaultDnsQuestion(QUERY_DOMAIN, DnsRecordType.A));
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DnsQuestion question = query.recordAt(DnsSection.QUESTION);
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channel.writeInbound(newResponse(query, question, QUERY_RESULT));
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DnsResponse readResponse = channel.readInbound();
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assertThat(readResponse.recordAt(DnsSection.QUESTION), is((DnsRecord) question));
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DnsRawRecord record = new DefaultDnsRawRecord(question.name(),
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DnsRecordType.A, TTL, Unpooled.wrappedBuffer(QUERY_RESULT));
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assertThat(readResponse.recordAt(DnsSection.ANSWER), is((DnsRecord) record));
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assertThat(readResponse.<DnsRawRecord>recordAt(DnsSection.ANSWER).content(), is(record.content()));
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ReferenceCountUtil.release(readResponse);
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ReferenceCountUtil.release(record);
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query.release();
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assertFalse(channel.finish());
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}
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private static DefaultDnsResponse newResponse(DnsQuery query, DnsQuestion question, byte[]... addresses) {
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DefaultDnsResponse response = new DefaultDnsResponse(query.id());
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response.addRecord(DnsSection.QUESTION, question);
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for (byte[] address : addresses) {
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DefaultDnsRawRecord queryAnswer = new DefaultDnsRawRecord(question.name(),
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DnsRecordType.A, TTL, Unpooled.wrappedBuffer(address));
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response.addRecord(DnsSection.ANSWER, queryAnswer);
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}
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return response;
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}
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}
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