poorbarcode commented on code in PR #20737: URL: https://github.com/apache/pulsar/pull/20737#discussion_r1264959964
########## pulsar-broker/src/test/java/org/apache/pulsar/client/api/InjectedErrorProducerConsumerTest.java: ########## @@ -0,0 +1,184 @@ +/* + * 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.pulsar.client.api; + +import static org.mockito.ArgumentMatchers.any; +import static org.mockito.Mockito.doAnswer; +import static org.mockito.Mockito.spy; +import static org.testng.Assert.assertEquals; +import static org.testng.Assert.fail; +import java.lang.reflect.Field; +import java.util.HashMap; +import java.util.concurrent.CompletableFuture; +import java.util.concurrent.CountDownLatch; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.atomic.AtomicInteger; +import lombok.AllArgsConstructor; +import lombok.Data; +import lombok.extern.slf4j.Slf4j; +import org.apache.pulsar.broker.BrokerTestUtil; +import org.apache.pulsar.broker.service.Dispatcher; +import org.apache.pulsar.broker.service.persistent.PersistentSubscription; +import org.apache.pulsar.broker.service.persistent.PersistentTopic; +import org.awaitility.Awaitility; +import org.testng.annotations.AfterClass; +import org.testng.annotations.BeforeClass; +import org.testng.annotations.Test; + +@Slf4j +@Test(groups = "broker-api") +public class InjectedErrorProducerConsumerTest extends ProducerConsumerBase { + + @BeforeClass(alwaysRun = true) + @Override + protected void setup() throws Exception { + super.internalSetup(); + super.producerBaseSetup(); + } + + @AfterClass(alwaysRun = true) + @Override + protected void cleanup() throws Exception { + super.internalCleanup(); + } + + private String randomTopicName() { + return BrokerTestUtil.newUniqueName("persistent://" + defaultNamespace + "/tp_"); + } + + private void sneakySleep(long millis) { + try { + Thread.sleep(millis); + } catch (InterruptedException e) { + throw new RuntimeException(e); + } + } + + private void sneakyAwait(CountDownLatch countDownLatch) { + try { + countDownLatch.await(); + } catch (InterruptedException e) { + throw new RuntimeException(e); + } + } + + private InjectedSubscription createTopicAndSubscriptionAndInjectDispatcher(String topicName, String subscribe, + SubscriptionType subscriptionType) + throws Exception { + admin.topics().createNonPartitionedTopic(topicName); + Consumer<String> consumer = pulsarClient.newConsumer(Schema.STRING).topic(topicName) + .subscriptionName(subscribe).receiverQueueSize(5) + .subscriptionType(subscriptionType).subscribe(); + consumer.close(); + PersistentTopic persistentTopic = + (PersistentTopic) pulsar.getBrokerService().getTopic(topicName, true).join().get(); + PersistentSubscription subscription = persistentTopic.getSubscription(subscribe); + InjectedSubscription injectedSubscription = new InjectedSubscription(persistentTopic, subscription); + injectedSubscription.spySubscription(); + injectedSubscription.spyDispatcher(); + return injectedSubscription; + } + + @Data + @AllArgsConstructor + private class InjectedSubscription { + private PersistentTopic persistentTopic; + private PersistentSubscription subscription; + private PersistentSubscription spySubscription; + private Dispatcher dispatcher; + private Dispatcher spyDispatcher; + private AtomicInteger subscribeCounter = new AtomicInteger(); + private HashMap<Integer, CountDownLatch> whichSubscribeTimeout = new HashMap<>(); + + private InjectedSubscription(PersistentTopic persistentTopic, PersistentSubscription subscription) { + this.persistentTopic = persistentTopic; + this.subscription = subscription; + } + + private void spySubscription() throws Exception { + spySubscription = spy(subscription); + persistentTopic.getSubscriptions().put(subscription.getName(), spySubscription); + doAnswer(invocation -> { + int times = subscribeCounter.incrementAndGet(); + org.apache.pulsar.broker.service.Consumer consumer = + (org.apache.pulsar.broker.service.Consumer) invocation.getArguments()[0]; + CompletableFuture<Void> future = subscription.addConsumer(consumer); + return future.thenAccept(ignore -> { + CountDownLatch signal = whichSubscribeTimeout.get(times); + if (signal != null) { + sneakyAwait(signal); + } + }); + }).when(spySubscription).addConsumer(any(org.apache.pulsar.broker.service.Consumer.class)); + } + + private boolean spyDispatcher() throws Exception { + dispatcher = subscription.getDispatcher(); + if (dispatcher == null) { + return false; + } + spyDispatcher = spy(dispatcher); + Field fieldDispatcher = PersistentSubscription.class.getDeclaredField("dispatcher"); + fieldDispatcher.setAccessible(true); + fieldDispatcher.set(subscription, spyDispatcher); + return true; + } Review Comment: It doesn't affect the result. We can remove this `spy` later -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
