jsancio commented on a change in pull request #9476: URL: https://github.com/apache/kafka/pull/9476#discussion_r510448694
########## File path: raft/src/test/java/org/apache/kafka/raft/RaftClientTestContext.java ########## @@ -0,0 +1,648 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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.apache.kafka.raft; + +import java.io.IOException; +import java.net.InetSocketAddress; +import java.nio.ByteBuffer; +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashSet; +import java.util.List; +import java.util.Map; +import java.util.Optional; +import java.util.OptionalInt; +import java.util.Random; +import java.util.Set; +import java.util.concurrent.CompletableFuture; +import java.util.function.Consumer; +import java.util.function.Function; +import java.util.stream.Collectors; +import org.apache.kafka.common.TopicPartition; +import org.apache.kafka.common.message.BeginQuorumEpochRequestData; +import org.apache.kafka.common.message.BeginQuorumEpochResponseData; +import org.apache.kafka.common.message.DescribeQuorumResponseData.ReplicaState; +import org.apache.kafka.common.message.DescribeQuorumResponseData; +import org.apache.kafka.common.message.EndQuorumEpochRequestData; +import org.apache.kafka.common.message.EndQuorumEpochResponseData; +import org.apache.kafka.common.message.FetchRequestData; +import org.apache.kafka.common.message.FetchResponseData; +import org.apache.kafka.common.message.LeaderChangeMessage.Voter; +import org.apache.kafka.common.message.LeaderChangeMessage; +import org.apache.kafka.common.message.VoteRequestData; +import org.apache.kafka.common.message.VoteResponseData; +import org.apache.kafka.common.metrics.Metrics; +import org.apache.kafka.common.protocol.ApiKeys; +import org.apache.kafka.common.protocol.ApiMessage; +import org.apache.kafka.common.protocol.Errors; +import org.apache.kafka.common.record.CompressionType; +import org.apache.kafka.common.record.ControlRecordType; +import org.apache.kafka.common.record.ControlRecordUtils; +import org.apache.kafka.common.record.MemoryRecords; +import org.apache.kafka.common.record.Record; +import org.apache.kafka.common.record.Records; +import org.apache.kafka.common.record.SimpleRecord; +import org.apache.kafka.common.requests.BeginQuorumEpochResponse; +import org.apache.kafka.common.requests.DescribeQuorumResponse; +import org.apache.kafka.common.requests.VoteResponse; +import org.apache.kafka.common.utils.LogContext; +import org.apache.kafka.common.utils.MockTime; +import org.apache.kafka.common.utils.Utils; +import org.apache.kafka.test.TestUtils; +import org.mockito.Mockito; +import static org.apache.kafka.raft.RaftUtil.hasValidTopicPartition; +import static org.junit.jupiter.api.Assertions.assertEquals; +import static org.junit.jupiter.api.Assertions.assertTrue; + +final class RaftClientTestContext { + private static final int FETCH_MAX_WAIT_MS = 0; + + static final TopicPartition METADATA_PARTITION = new TopicPartition("metadata", 0); + static final int LOCAL_ID = 0; + + static final int ELECTION_BACKOFF_MAX_MS = 100; + static final int ELECTION_TIMEOUT_MS = 10000; + // fetch timeout is usually larger than election timeout + static final int FETCH_TIMEOUT_MS = 50000; + static final int REQUEST_TIMEOUT_MS = 5000; + static final int RETRY_BACKOFF_MS = 50; + + private final QuorumStateStore quorumStateStore; + private final Random random; + + final KafkaRaftClient client; + final Metrics metrics; + final MockLog log; + final MockNetworkChannel channel; + final MockTime time; + final Set<Integer> voters; + + public static final class Builder { + private final QuorumStateStore quorumStateStore = new MockQuorumStateStore(); + private final Random random = Mockito.spy(new Random(1)); + private final MockLog log = new MockLog(METADATA_PARTITION); + private final Set<Integer> voters; + + Builder(Set<Integer> voters) { + this.voters = voters; + } + + Builder withElectedLeader(int epoch, int leaderId) throws IOException { + quorumStateStore.writeElectionState(ElectionState.withElectedLeader(epoch, leaderId, voters)); + return this; + } + + Builder withUnknownLeader(int epoch) throws IOException { + quorumStateStore.writeElectionState(ElectionState.withUnknownLeader(epoch, voters)); + return this; + } + + Builder withVotedCandidate(int epoch, int votedId) throws IOException { + quorumStateStore.writeElectionState(ElectionState.withVotedCandidate(epoch, votedId, voters)); + return this; + } + + Builder updateRandom(Consumer<Random> consumer) { + consumer.accept(random); + return this; + } + + Builder updateLog(Consumer<MockLog> consumer) { + consumer.accept(log); + return this; + } + + RaftClientTestContext build() throws IOException { + MockTime time = new MockTime(); + Metrics metrics = new Metrics(time); + MockNetworkChannel channel = new MockNetworkChannel(); + LogContext logContext = new LogContext(); + QuorumState quorum = new QuorumState(LOCAL_ID, voters, ELECTION_TIMEOUT_MS, FETCH_TIMEOUT_MS, + quorumStateStore, time, logContext, random); + + Map<Integer, InetSocketAddress> voterAddresses = voters.stream().collect(Collectors.toMap( + Function.identity(), + RaftClientTestContext::mockAddress + )); Review comment: Done. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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