kirktrue commented on code in PR #14406: URL: https://github.com/apache/kafka/pull/14406#discussion_r1364704339
########## clients/src/test/java/org/apache/kafka/clients/consumer/internals/ConsumerNetworkThreadTest.java: ########## @@ -0,0 +1,270 @@ +/* + * 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.clients.consumer.internals; + +import org.apache.kafka.clients.MockClient; +import org.apache.kafka.clients.consumer.OffsetAndMetadata; +import org.apache.kafka.clients.consumer.internals.events.ApplicationEvent; +import org.apache.kafka.clients.consumer.internals.events.ApplicationEventProcessor; +import org.apache.kafka.clients.consumer.internals.events.AssignmentChangeApplicationEvent; +import org.apache.kafka.clients.consumer.internals.events.CommitApplicationEvent; +import org.apache.kafka.clients.consumer.internals.events.FetchEvent; +import org.apache.kafka.clients.consumer.internals.events.ListOffsetsApplicationEvent; +import org.apache.kafka.clients.consumer.internals.events.NewTopicsMetadataUpdateRequestEvent; +import org.apache.kafka.clients.consumer.internals.events.ResetPositionsApplicationEvent; +import org.apache.kafka.clients.consumer.internals.events.TopicMetadataApplicationEvent; +import org.apache.kafka.clients.consumer.internals.events.ValidatePositionsApplicationEvent; +import org.apache.kafka.common.TopicPartition; +import org.apache.kafka.common.message.FindCoordinatorRequestData; +import org.apache.kafka.common.requests.FindCoordinatorRequest; +import org.apache.kafka.common.requests.MetadataResponse; +import org.apache.kafka.common.requests.RequestTestUtils; +import org.apache.kafka.common.utils.Time; +import org.apache.kafka.test.TestCondition; +import org.apache.kafka.test.TestUtils; +import org.junit.jupiter.api.AfterEach; +import org.junit.jupiter.api.BeforeEach; +import org.junit.jupiter.api.Test; + +import java.time.Duration; +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashMap; +import java.util.Map; +import java.util.Optional; +import java.util.Queue; +import java.util.concurrent.BlockingQueue; +import java.util.concurrent.CompletableFuture; + +import static org.apache.kafka.clients.consumer.internals.ConsumerTestBuilder.DEFAULT_REQUEST_TIMEOUT_MS; +import static org.apache.kafka.test.TestUtils.DEFAULT_MAX_WAIT_MS; +import static org.junit.jupiter.api.Assertions.assertDoesNotThrow; +import static org.junit.jupiter.api.Assertions.assertEquals; +import static org.junit.jupiter.api.Assertions.assertFalse; +import static org.junit.jupiter.api.Assertions.assertTrue; +import static org.mockito.ArgumentMatchers.any; +import static org.mockito.ArgumentMatchers.anyLong; +import static org.mockito.ArgumentMatchers.eq; +import static org.mockito.Mockito.doThrow; +import static org.mockito.Mockito.spy; +import static org.mockito.Mockito.times; +import static org.mockito.Mockito.verify; +import static org.mockito.Mockito.when; + +@SuppressWarnings("ClassDataAbstractionCoupling") +public class ConsumerNetworkThreadTest { + + private ConsumerTestBuilder.ConsumerNetworkThreadTestBuilder testBuilder; + private Time time; + private ConsumerMetadata metadata; + private NetworkClientDelegate networkClient; + private BlockingQueue<ApplicationEvent> applicationEventsQueue; + private ApplicationEventProcessor applicationEventProcessor; + private OffsetsRequestManager offsetsRequestManager; + private CommitRequestManager commitManager; + private ConsumerNetworkThread consumerNetworkThread; + private MockClient client; + + @BeforeEach + public void setup() { + testBuilder = new ConsumerTestBuilder.ConsumerNetworkThreadTestBuilder(); + time = testBuilder.time; + metadata = testBuilder.metadata; + networkClient = testBuilder.networkClientDelegate; + client = testBuilder.client; + applicationEventsQueue = testBuilder.applicationEventQueue; + applicationEventProcessor = testBuilder.applicationEventProcessor; + commitManager = testBuilder.commitRequestManager.orElseThrow(IllegalStateException::new); + offsetsRequestManager = testBuilder.offsetsRequestManager; + consumerNetworkThread = testBuilder.consumerNetworkThread; + consumerNetworkThread.initializeResources(); + } + + @AfterEach + public void tearDown() { + if (testBuilder != null) + testBuilder.close(); + } + + @Test + public void testStartupAndTearDown() throws InterruptedException { + // The consumer is closed in ConsumerTestBuilder.ConsumerNetworkThreadTestBuilder.close() + // which is called from tearDown(). + consumerNetworkThread.start(); + + TestCondition isStarted = () -> consumerNetworkThread.isRunning(); + TestCondition isClosed = () -> !(consumerNetworkThread.isRunning() || consumerNetworkThread.isAlive()); + + // There's a nonzero amount of time between starting the thread and having it + // begin to execute our code. Wait for a bit before checking... + TestUtils.waitForCondition(isStarted, + "The consumer network thread did not start within " + DEFAULT_MAX_WAIT_MS + " ms"); + + consumerNetworkThread.close(Duration.ofMillis(DEFAULT_MAX_WAIT_MS)); + + TestUtils.waitForCondition(isClosed, + "The consumer network thread did not stop within " + DEFAULT_MAX_WAIT_MS + " ms"); + } + + @Test + public void testApplicationEvent() { + FetchEvent e = new FetchEvent(); + applicationEventsQueue.add(e); + consumerNetworkThread.runOnce(); + verify(applicationEventProcessor, times(1)).process(e); + } + + @Test + public void testMetadataUpdateEvent() { + ApplicationEvent e = new NewTopicsMetadataUpdateRequestEvent(); + applicationEventsQueue.add(e); + consumerNetworkThread.runOnce(); + verify(metadata).requestUpdateForNewTopics(); + } + + @Test + public void testCommitEvent() { + ApplicationEvent e = new CommitApplicationEvent(new HashMap<>()); + applicationEventsQueue.add(e); + consumerNetworkThread.runOnce(); + verify(applicationEventProcessor).process(any(CommitApplicationEvent.class)); + } + + @Test + public void testListOffsetsEventIsProcessed() { + Map<TopicPartition, Long> timestamps = Collections.singletonMap(new TopicPartition("topic1", 1), 5L); + ApplicationEvent e = new ListOffsetsApplicationEvent(timestamps, true); + applicationEventsQueue.add(e); + consumerNetworkThread.runOnce(); + verify(applicationEventProcessor).process(any(ListOffsetsApplicationEvent.class)); + assertTrue(applicationEventsQueue.isEmpty()); + } + + @Test + public void testResetPositionsEventIsProcessed() { + ResetPositionsApplicationEvent e = new ResetPositionsApplicationEvent(); + applicationEventsQueue.add(e); + consumerNetworkThread.runOnce(); + verify(applicationEventProcessor).process(any(ResetPositionsApplicationEvent.class)); + assertTrue(applicationEventsQueue.isEmpty()); + } + + @Test + public void testResetPositionsProcessFailureIsIgnored() { + doThrow(new NullPointerException()).when(offsetsRequestManager).resetPositionsIfNeeded(); Review Comment: Filed KAFKA-15639. -- This is an automated message from the Apache Git Service. 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