kirktrue commented on code in PR #14406: URL: https://github.com/apache/kafka/pull/14406#discussion_r1351063405
########## clients/src/test/java/org/apache/kafka/clients/consumer/internals/ConsumerNetworkThreadTest.java: ########## @@ -0,0 +1,288 @@ +/* + * 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.LogTruncationException; +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.errors.TopicAuthorizationException; +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.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.junit.jupiter.api.Assertions.assertEquals; +import static org.junit.jupiter.api.Assertions.assertFalse; +import static org.junit.jupiter.api.Assertions.assertThrows; +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 CoordinatorRequestManager coordinatorManager; + 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; + coordinatorManager = testBuilder.coordinatorRequestManager; + commitManager = testBuilder.commitRequestManager; + offsetsRequestManager = testBuilder.offsetsRequestManager; + consumerNetworkThread = testBuilder.consumerNetworkThread; + consumerNetworkThread.initializeResources(); + } + + @AfterEach + public void tearDown() { + if (testBuilder != null) + testBuilder.close(); + } + + @Test + public void testStartupAndTearDown() throws InterruptedException { + consumerNetworkThread.start(); + TestUtils.waitForCondition(consumerNetworkThread::isRunning, "Failed awaiting for the background thread to be running"); + + // 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... + int maxWaitMs = 1000; + TestUtils.waitForCondition(consumerNetworkThread::isRunning, + maxWaitMs, + "Thread did not start within " + maxWaitMs + " ms"); + consumerNetworkThread.close(Duration.ofMillis(maxWaitMs)); + TestUtils.waitForCondition(() -> !consumerNetworkThread.isRunning(), + maxWaitMs, + "Thread did not stop within " + maxWaitMs + " 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 testResetPositionsProcessFailureInterruptsConsumerNetworkThread() { + TopicAuthorizationException authException = new TopicAuthorizationException("Topic authorization failed"); + doThrow(authException).when(offsetsRequestManager).resetPositionsIfNeeded(); + + ResetPositionsApplicationEvent event = new ResetPositionsApplicationEvent(); + applicationEventsQueue.add(event); + assertThrows(TopicAuthorizationException.class, () -> consumerNetworkThread.runOnce()); + + verify(applicationEventProcessor).process(any(ResetPositionsApplicationEvent.class)); + } + + @Test + public void testValidatePositionsEventIsProcessed() { + ValidatePositionsApplicationEvent e = new ValidatePositionsApplicationEvent(); + applicationEventsQueue.add(e); + consumerNetworkThread.runOnce(); + verify(applicationEventProcessor).process(any(ValidatePositionsApplicationEvent.class)); + assertTrue(applicationEventsQueue.isEmpty()); + } + + @Test + public void testValidatePositionsProcessFailure() { + LogTruncationException logTruncationException = new LogTruncationException(Collections.emptyMap(), Collections.emptyMap()); + doThrow(logTruncationException).when(offsetsRequestManager).validatePositionsIfNeeded(); + + ValidatePositionsApplicationEvent event = new ValidatePositionsApplicationEvent(); + applicationEventsQueue.add(event); + assertThrows(LogTruncationException.class, consumerNetworkThread::runOnce); + + verify(applicationEventProcessor).process(any(ValidatePositionsApplicationEvent.class)); + } + + @Test + public void testAssignmentChangeEvent() { + HashMap<TopicPartition, OffsetAndMetadata> offset = mockTopicPartitionOffset(); + + final long currentTimeMs = time.milliseconds(); + ApplicationEvent e = new AssignmentChangeApplicationEvent(offset, currentTimeMs); + applicationEventsQueue.add(e); + + consumerNetworkThread.runOnce(); + verify(applicationEventProcessor).process(any(AssignmentChangeApplicationEvent.class)); + verify(networkClient, times(1)).poll(anyLong(), anyLong()); + verify(commitManager, times(1)).updateAutoCommitTimer(currentTimeMs); + verify(commitManager, times(1)).maybeAutoCommit(offset); + } + + @Test + void testFindCoordinator() { + consumerNetworkThread.runOnce(); + verify(coordinatorManager, times(1)).poll(anyLong()); + verify(networkClient, times(1)).poll(anyLong(), anyLong()); + } + + @Test + void testFetchTopicMetadata() { + applicationEventsQueue.add(new TopicMetadataApplicationEvent("topic")); + consumerNetworkThread.runOnce(); + verify(applicationEventProcessor).process(any(TopicMetadataApplicationEvent.class)); + } + + @Test + void testPollResultTimer() { + NetworkClientDelegate.UnsentRequest req = new NetworkClientDelegate.UnsentRequest( + new FindCoordinatorRequest.Builder( + new FindCoordinatorRequestData() + .setKeyType(FindCoordinatorRequest.CoordinatorType.TRANSACTION.id()) + .setKey("foobar")), + Optional.empty()); + req.setTimer(time, ConsumerTestBuilder.REQUEST_TIMEOUT_MS); + + // purposely setting a non-MAX time to ensure it is returning Long.MAX_VALUE upon success + NetworkClientDelegate.PollResult success = new NetworkClientDelegate.PollResult( + 10, + Collections.singletonList(req)); + assertEquals(10, networkClient.addAll(success)); + + NetworkClientDelegate.PollResult failure = new NetworkClientDelegate.PollResult( + 10, + new ArrayList<>()); + assertEquals(10, networkClient.addAll(failure)); + } + + @Test + void testRequestManagersArePolledOnce() { Review Comment: Yes. I've removed `testFindCoordinator()` as it's now superfluous. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
