X-Git-Url: http://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Ftest%2Fjava%2Fde%2Fjuplo%2Fkafka%2FGenericApplicationTests.java;h=ac8a6298fc17edc6f790f2ea58a292ed2231fe91;hb=66ff7d205e66616de8aaca94503dbbcd7d281f6d;hp=449c38956b1bb920ee6d130aff925d235fb46a71;hpb=890fd85c334a078610701bd6e571d133df69473f;p=demos%2Fkafka%2Ftraining diff --git a/src/test/java/de/juplo/kafka/GenericApplicationTests.java b/src/test/java/de/juplo/kafka/GenericApplicationTests.java index 449c389..ac8a629 100644 --- a/src/test/java/de/juplo/kafka/GenericApplicationTests.java +++ b/src/test/java/de/juplo/kafka/GenericApplicationTests.java @@ -2,29 +2,33 @@ package de.juplo.kafka; import com.mongodb.client.MongoClient; import lombok.extern.slf4j.Slf4j; -import org.apache.kafka.clients.consumer.ConsumerRecord; +import org.apache.kafka.clients.consumer.ConsumerConfig; import org.apache.kafka.clients.consumer.KafkaConsumer; import org.apache.kafka.clients.producer.KafkaProducer; import org.apache.kafka.clients.producer.ProducerRecord; import org.apache.kafka.common.TopicPartition; -import org.apache.kafka.common.errors.RecordDeserializationException; import org.apache.kafka.common.serialization.*; import org.apache.kafka.common.utils.Bytes; import org.junit.jupiter.api.*; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.autoconfigure.EnableAutoConfiguration; +import org.springframework.boot.autoconfigure.kafka.KafkaProperties; import org.springframework.boot.autoconfigure.mongo.MongoProperties; import org.springframework.boot.test.autoconfigure.data.mongo.AutoConfigureDataMongo; import org.springframework.boot.test.context.ConfigDataApplicationContextInitializer; import org.springframework.boot.test.context.TestConfiguration; +import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Import; +import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory; +import org.springframework.kafka.config.KafkaListenerEndpointRegistry; +import org.springframework.kafka.core.ConsumerFactory; +import org.springframework.kafka.core.DefaultKafkaConsumerFactory; import org.springframework.kafka.test.context.EmbeddedKafka; import org.springframework.test.context.TestPropertySource; import org.springframework.test.context.junit.jupiter.SpringJUnitConfig; import java.time.Duration; import java.util.*; -import java.util.concurrent.ExecutorService; import java.util.function.BiConsumer; import java.util.function.Consumer; import java.util.stream.Collectors; @@ -39,9 +43,10 @@ import static org.awaitility.Awaitility.*; @SpringJUnitConfig(initializers = ConfigDataApplicationContextInitializer.class) @TestPropertySource( properties = { - "sumup.adder.bootstrap-server=${spring.embedded.kafka.brokers}", + "spring.kafka.bootstrap-servers=${spring.embedded.kafka.brokers}", + "spring.kafka.producer.bootstrap-servers=${spring.embedded.kafka.brokers}", "sumup.adder.topic=" + TOPIC, - "sumup.adder.commit-interval=1s", + "spring.kafka.consumer.auto-commit-interval=500ms", "spring.mongodb.embedded.version=4.4.13" }) @EmbeddedKafka(topics = TOPIC, partitions = PARTITIONS) @EnableAutoConfiguration @@ -54,28 +59,27 @@ abstract class GenericApplicationTests @Autowired - KafkaConsumer kafkaConsumer; + org.apache.kafka.clients.consumer.Consumer kafkaConsumer; @Autowired - Consumer> consumer; + KafkaProperties kafkaProperties; @Autowired - ApplicationProperties properties; - @Autowired - ExecutorService executor; + ApplicationProperties applicationProperties; @Autowired MongoClient mongoClient; @Autowired MongoProperties mongoProperties; @Autowired - PollIntervalAwareConsumerRebalanceListener rebalanceListener; + KafkaListenerEndpointRegistry kafkaListenerEndpointRegistry; + @Autowired + TestRecordHandler recordHandler; @Autowired - RecordHandler recordHandler; + DeadLetterTopicConsumer deadLetterTopicConsumer; + @Autowired + EndlessConsumer endlessConsumer; KafkaProducer testRecordProducer; KafkaConsumer offsetConsumer; - EndlessConsumer endlessConsumer; Map oldOffsets; - Map newOffsets; - Set> receivedRecords; final RecordGenerator recordGenerator; @@ -91,15 +95,16 @@ abstract class GenericApplicationTests /** Tests methods */ @Test - void commitsCurrentOffsetsOnSuccess() + void commitsCurrentOffsetsOnSuccess() throws Exception { - int numberOfGeneratedMessages = - recordGenerator.generate(false, false, messageSender); + recordGenerator.generate(false, false, messageSender); + + int numberOfGeneratedMessages = recordGenerator.getNumberOfMessages(); await(numberOfGeneratedMessages + " records received") .atMost(Duration.ofSeconds(30)) .pollInterval(Duration.ofSeconds(1)) - .until(() -> receivedRecords.size() >= numberOfGeneratedMessages); + .until(() -> recordHandler.receivedMessages >= numberOfGeneratedMessages); await("Offsets committed") .atMost(Duration.ofSeconds(10)) @@ -107,13 +112,14 @@ abstract class GenericApplicationTests .untilAsserted(() -> { checkSeenOffsetsForProgress(); - compareToCommitedOffsets(newOffsets); + assertSeenOffsetsEqualCommittedOffsets(recordHandler.seenOffsets); }); - assertThatExceptionOfType(IllegalStateException.class) - .isThrownBy(() -> endlessConsumer.exitStatus()) - .describedAs("Consumer should still be running"); + assertThat(endlessConsumer.running()) + .describedAs("Consumer should still be running") + .isTrue(); + endlessConsumer.stop(); recordGenerator.assertBusinessLogic(); } @@ -121,91 +127,108 @@ abstract class GenericApplicationTests @SkipWhenErrorCannotBeGenerated(poisonPill = true) void commitsOffsetOfErrorForReprocessingOnDeserializationError() { - int numberOfGeneratedMessages = - recordGenerator.generate(true, false, messageSender); + recordGenerator.generate(true, false, messageSender); - await("Consumer failed") + int numberOfValidMessages = + recordGenerator.getNumberOfMessages() - + recordGenerator.getNumberOfPoisonPills(); + + await(numberOfValidMessages + " records received") .atMost(Duration.ofSeconds(30)) .pollInterval(Duration.ofSeconds(1)) - .until(() -> !endlessConsumer.running()); - - checkSeenOffsetsForProgress(); - compareToCommitedOffsets(newOffsets); - - endlessConsumer.start(); - await("Consumer failed") + .until(() -> recordHandler.receivedMessages >= numberOfValidMessages); + await(recordGenerator.getNumberOfPoisonPills() + " poison-pills received") .atMost(Duration.ofSeconds(30)) .pollInterval(Duration.ofSeconds(1)) - .until(() -> !endlessConsumer.running()); + .until(() -> deadLetterTopicConsumer.messages.size() == recordGenerator.getNumberOfPoisonPills()); - checkSeenOffsetsForProgress(); - compareToCommitedOffsets(newOffsets); - assertThat(receivedRecords.size()) - .describedAs("Received not all sent events") - .isLessThan(numberOfGeneratedMessages); + await("Offsets committed") + .atMost(Duration.ofSeconds(10)) + .pollInterval(Duration.ofSeconds(1)) + .untilAsserted(() -> + { + checkSeenOffsetsForProgress(); + assertSeenOffsetsEqualCommittedOffsets(recordHandler.seenOffsets); + }); - assertThatNoException() - .describedAs("Consumer should not be running") - .isThrownBy(() -> endlessConsumer.exitStatus()); - assertThat(endlessConsumer.exitStatus()) - .describedAs("Consumer should have exited abnormally") - .containsInstanceOf(RecordDeserializationException.class); + assertThat(endlessConsumer.running()) + .describedAs("Consumer should still be running") + .isTrue(); + endlessConsumer.stop(); recordGenerator.assertBusinessLogic(); } @Test @SkipWhenErrorCannotBeGenerated(logicError = true) - void doesNotCommitOffsetsOnLogicError() + void commitsOffsetsOfUnseenRecordsOnLogicError() { - int numberOfGeneratedMessages = - recordGenerator.generate(false, true, messageSender); + recordGenerator.generate(false, true, messageSender); - await("Consumer failed") + int numberOfValidMessages = + recordGenerator.getNumberOfMessages() - + recordGenerator.getNumberOfLogicErrors(); + + await(numberOfValidMessages + " records received") .atMost(Duration.ofSeconds(30)) .pollInterval(Duration.ofSeconds(1)) - .until(() -> !endlessConsumer.running()); - - checkSeenOffsetsForProgress(); - compareToCommitedOffsets(oldOffsets); - - endlessConsumer.start(); - await("Consumer failed") + .until(() -> recordHandler.receivedMessages >= numberOfValidMessages); + await(recordGenerator.getNumberOfLogicErrors() + " logic-errors received") .atMost(Duration.ofSeconds(30)) .pollInterval(Duration.ofSeconds(1)) - .until(() -> !endlessConsumer.running()); + .until(() -> deadLetterTopicConsumer.messages.size() == recordGenerator.getNumberOfLogicErrors()); - checkSeenOffsetsForProgress(); - compareToCommitedOffsets(oldOffsets); - assertThat(receivedRecords.size()) - .describedAs("Received not all sent events") - .isLessThan(numberOfGeneratedMessages); + await("Offsets committed") + .atMost(Duration.ofSeconds(10)) + .pollInterval(Duration.ofSeconds(1)) + .untilAsserted(() -> + { + checkSeenOffsetsForProgress(); + assertSeenOffsetsEqualCommittedOffsets(recordHandler.seenOffsets); + }); - assertThatNoException() - .describedAs("Consumer should not be running") - .isThrownBy(() -> endlessConsumer.exitStatus()); - assertThat(endlessConsumer.exitStatus()) - .describedAs("Consumer should have exited abnormally") - .containsInstanceOf(RuntimeException.class); + assertThat(endlessConsumer.running()) + .describedAs("Consumer should still be running") + .isTrue(); + endlessConsumer.stop(); recordGenerator.assertBusinessLogic(); } /** Helper methods for the verification of expectations */ - void compareToCommitedOffsets(Map offsetsToCheck) + void assertSeenOffsetsEqualCommittedOffsets(Map offsetsToCheck) { doForCurrentOffsets((tp, offset) -> { Long expected = offsetsToCheck.get(tp) + 1; - log.debug("Checking, if the offset for {} is {}", tp, expected); + log.debug("Checking, if the offset {} for {} is exactly {}", offset, tp, expected); assertThat(offset) .describedAs("Committed offset corresponds to the offset of the consumer") .isEqualTo(expected); }); } + void assertSeenOffsetsAreBehindCommittedOffsets(Map offsetsToCheck) + { + List isOffsetBehindSeen = new LinkedList<>(); + + doForCurrentOffsets((tp, offset) -> + { + Long expected = offsetsToCheck.get(tp) + 1; + log.debug("Checking, if the offset {} for {} is at most {}", offset, tp, expected); + assertThat(offset) + .describedAs("Committed offset must be at most equal to the offset of the consumer") + .isLessThanOrEqualTo(expected); + isOffsetBehindSeen.add(offset < expected); + }); + + assertThat(isOffsetBehindSeen.stream().reduce(false, (result, next) -> result | next)) + .describedAs("Committed offsets are behind seen offsets") + .isTrue(); + } + void checkSeenOffsetsForProgress() { // Be sure, that some messages were consumed...! @@ -213,7 +236,7 @@ abstract class GenericApplicationTests partitions().forEach(tp -> { Long oldOffset = oldOffsets.get(tp) + 1; - Long newOffset = newOffsets.get(tp) + 1; + Long newOffset = recordHandler.seenOffsets.get(tp) + 1; if (!oldOffset.equals(newOffset)) { log.debug("Progress for {}: {} -> {}", tp, oldOffset, newOffset); @@ -262,11 +285,15 @@ abstract class GenericApplicationTests public interface RecordGenerator { - int generate( + void generate( boolean poisonPills, boolean logicErrors, Consumer> messageSender); + int getNumberOfMessages(); + int getNumberOfPoisonPills(); + int getNumberOfLogicErrors(); + default boolean canGeneratePoisonPill() { return true; @@ -313,56 +340,35 @@ abstract class GenericApplicationTests { Properties props; props = new Properties(); - props.put("bootstrap.servers", properties.getBootstrapServer()); + props.put("bootstrap.servers", kafkaProperties.getBootstrapServers()); props.put("linger.ms", 100); props.put("key.serializer", BytesSerializer.class.getName()); props.put("value.serializer", BytesSerializer.class.getName()); testRecordProducer = new KafkaProducer<>(props); props = new Properties(); - props.put("bootstrap.servers", properties.getBootstrapServer()); + props.put("bootstrap.servers", kafkaProperties.getBootstrapServers()); props.put("client.id", "OFFSET-CONSUMER"); - props.put("group.id", properties.getGroupId()); + props.put("group.id", kafkaProperties.getConsumer().getGroupId()); props.put("key.deserializer", BytesDeserializer.class.getName()); props.put("value.deserializer", BytesDeserializer.class.getName()); offsetConsumer = new KafkaConsumer<>(props); + mongoClient.getDatabase(mongoProperties.getDatabase()).drop(); seekToEnd(); oldOffsets = new HashMap<>(); - newOffsets = new HashMap<>(); - receivedRecords = new HashSet<>(); + recordHandler.seenOffsets = new HashMap<>(); + recordHandler.receivedMessages = 0; + + deadLetterTopicConsumer.messages.clear(); doForCurrentOffsets((tp, offset) -> { oldOffsets.put(tp, offset - 1); - newOffsets.put(tp, offset - 1); + recordHandler.seenOffsets.put(tp, offset - 1); }); - TestRecordHandler captureOffsetAndExecuteTestHandler = - new TestRecordHandler(recordHandler) - { - @Override - public void onNewRecord(ConsumerRecord record) - { - newOffsets.put( - new TopicPartition(record.topic(), record.partition()), - record.offset()); - receivedRecords.add(record); - } - }; - - mongoClient.getDatabase(mongoProperties.getDatabase()).drop(); - - endlessConsumer = - new EndlessConsumer<>( - executor, - properties.getClientId(), - properties.getTopic(), - kafkaConsumer, - rebalanceListener, - captureOffsetAndExecuteTestHandler); - endlessConsumer.start(); } @@ -372,6 +378,14 @@ abstract class GenericApplicationTests try { endlessConsumer.stop(); + } + catch (Exception e) + { + log.debug("{}", e.toString()); + } + + try + { testRecordProducer.close(); offsetConsumer.close(); } @@ -386,5 +400,41 @@ abstract class GenericApplicationTests @Import(ApplicationConfiguration.class) public static class Configuration { + @Bean + public RecordHandler recordHandler(RecordHandler applicationRecordHandler) + { + return new TestRecordHandler(applicationRecordHandler); + } + + @Bean(destroyMethod = "close") + public org.apache.kafka.clients.consumer.Consumer kafkaConsumer(ConsumerFactory factory) + { + return factory.createConsumer(); + } + + @Bean + public ConcurrentKafkaListenerContainerFactory dltContainerFactory( + KafkaProperties properties) + { + Map consumerProperties = new HashMap<>(); + + consumerProperties.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, properties.getBootstrapServers()); + consumerProperties.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class); + consumerProperties.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class); + consumerProperties.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest"); + + DefaultKafkaConsumerFactory dltConsumerFactory = + new DefaultKafkaConsumerFactory<>(consumerProperties); + ConcurrentKafkaListenerContainerFactory factory = + new ConcurrentKafkaListenerContainerFactory<>(); + factory.setConsumerFactory(dltConsumerFactory); + return factory; + } + + @Bean + public DeadLetterTopicConsumer deadLetterTopicConsumer() + { + return new DeadLetterTopicConsumer(); + } } }