X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Ftest%2Fjava%2Fde%2Fjuplo%2Fkafka%2FApplicationTests.java;h=408a82613840fcd382b68c2a25c5ec513e48eba4;hb=2d84eda74475aaffff11ddfebe56d309b9aff2e9;hp=40dc149e519a7f95709d7a7966dddf5b8de722df;hpb=28b729e55e2e0914b06c1dcb0a5defd9bcef4933;p=demos%2Fkafka%2Ftraining

diff --git a/src/test/java/de/juplo/kafka/ApplicationTests.java b/src/test/java/de/juplo/kafka/ApplicationTests.java
index 40dc149..408a826 100644
--- a/src/test/java/de/juplo/kafka/ApplicationTests.java
+++ b/src/test/java/de/juplo/kafka/ApplicationTests.java
@@ -6,11 +6,12 @@ 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.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;
@@ -19,12 +20,12 @@ import org.springframework.kafka.test.context.EmbeddedKafka;
 import org.springframework.test.context.TestPropertySource;
 import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
 
+import java.time.Clock;
 import java.time.Duration;
 import java.util.*;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.ExecutorService;
 import java.util.function.BiConsumer;
-import java.util.function.Consumer;
 import java.util.function.Function;
 import java.util.stream.Collectors;
 import java.util.stream.IntStream;
@@ -40,8 +41,12 @@ import static org.awaitility.Awaitility.*;
 @TestPropertySource(
 		properties = {
 				"consumer.bootstrap-server=${spring.embedded.kafka.brokers}",
-				"consumer.topic=" + TOPIC })
+				"consumer.topic=" + TOPIC,
+				"consumer.commit-interval=1s",
+				"spring.mongodb.embedded.version=4.4.13" })
 @EmbeddedKafka(topics = TOPIC, partitions = PARTITIONS)
+@EnableAutoConfiguration
+@AutoConfigureDataMongo
 @Slf4j
 class ApplicationTests
 {
@@ -56,25 +61,27 @@ class ApplicationTests
 	@Autowired
 	KafkaProducer<String, Bytes> kafkaProducer;
 	@Autowired
-	KafkaConsumer<String, Long> kafkaConsumer;
+	KafkaConsumer<String, String> kafkaConsumer;
 	@Autowired
-	KafkaConsumer<Bytes, Bytes> offsetConsumer;
+	PartitionStatisticsRepository partitionStatisticsRepository;
 	@Autowired
 	ApplicationProperties properties;
 	@Autowired
 	ExecutorService executor;
+	@Autowired
+	PartitionStatisticsRepository repository;
+  @Autowired
+	WordcountRecordHandler wordcountRecordHandler;
 
-	Consumer<ConsumerRecord<String, Long>> testHandler;
-	EndlessConsumer<String, Long> endlessConsumer;
+	EndlessConsumer<String, String> endlessConsumer;
 	Map<TopicPartition, Long> oldOffsets;
 	Map<TopicPartition, Long> newOffsets;
-	Set<ConsumerRecord<String, Long>> receivedRecords;
+	Set<ConsumerRecord<String, String>> receivedRecords;
 
 
 	/** Tests methods */
 
 	@Test
-	@Order(1) // << The poistion pill is not skipped. Hence, this test must run first
 	void commitsCurrentOffsetsOnSuccess() throws ExecutionException, InterruptedException
 	{
 		send100Messages(i ->  new Bytes(valueSerializer.serialize(TOPIC, i)));
@@ -96,41 +103,6 @@ class ApplicationTests
 				.describedAs("Consumer should still be running");
 	}
 
-	@Test
-	@Order(2)
-	void commitsOffsetOfErrorForReprocessingOnError()
-	{
-		send100Messages(counter ->
-				counter == 77
-						? new Bytes(stringSerializer.serialize(TOPIC, "BOOM!"))
-						: new Bytes(valueSerializer.serialize(TOPIC, counter)));
-
-		await("Consumer failed")
-				.atMost(Duration.ofSeconds(30))
-				.until(() -> !endlessConsumer.running());
-
-		checkSeenOffsetsForProgress();
-		compareToCommitedOffsets(newOffsets);
-
-		endlessConsumer.start();
-		await("Consumer failed")
-				.atMost(Duration.ofSeconds(30))
-				.until(() -> !endlessConsumer.running());
-
-		checkSeenOffsetsForProgress();
-		compareToCommitedOffsets(newOffsets);
-		assertThat(receivedRecords.size())
-				.describedAs("Received not all sent events")
-				.isLessThan(100);
-
-		assertThatNoException()
-				.describedAs("Consumer should not be running")
-				.isThrownBy(() -> endlessConsumer.exitStatus());
-		assertThat(endlessConsumer.exitStatus())
-				.describedAs("Consumer should have exited abnormally")
-				.containsInstanceOf(RecordDeserializationException.class);
-	}
-
 
 	/** Helper methods for the verification of expectations */
 
@@ -170,9 +142,12 @@ class ApplicationTests
 
 	void doForCurrentOffsets(BiConsumer<TopicPartition, Long> consumer)
 	{
-		offsetConsumer.assign(partitions());
-		partitions().forEach(tp -> consumer.accept(tp, offsetConsumer.position(tp)));
-		offsetConsumer.unsubscribe();
+		partitions().forEach(tp ->
+		{
+			String partition = Integer.toString(tp.partition());
+			Optional<Long> offset = partitionStatisticsRepository.findById(partition).map(document -> document.offset);
+			consumer.accept(tp, offset.orElse(0l));
+		});
 	}
 
 	List<TopicPartition> partitions()
@@ -230,8 +205,6 @@ class ApplicationTests
 	@BeforeEach
 	public void init()
 	{
-		testHandler = record -> {} ;
-
 		oldOffsets = new HashMap<>();
 		newOffsets = new HashMap<>();
 		receivedRecords = new HashSet<>();
@@ -242,14 +215,16 @@ class ApplicationTests
 			newOffsets.put(tp, offset - 1);
 		});
 
-		Consumer<ConsumerRecord<String, Long>> captureOffsetAndExecuteTestHandler =
-				record ->
-				{
-					newOffsets.put(
-							new TopicPartition(record.topic(), record.partition()),
-							record.offset());
-					receivedRecords.add(record);
-					testHandler.accept(record);
+		TestRecordHandler<String, String> captureOffsetAndExecuteTestHandler =
+				new TestRecordHandler<String, String>(wordcountRecordHandler) {
+					@Override
+					public void onNewRecord(ConsumerRecord<String, String> record)
+					{
+						newOffsets.put(
+								new TopicPartition(record.topic(), record.partition()),
+								record.offset());
+						receivedRecords.add(record);
+					}
 				};
 
 		endlessConsumer =
@@ -298,18 +273,5 @@ class ApplicationTests
 
 			return new KafkaProducer<>(props);
 		}
-
-		@Bean
-		KafkaConsumer<Bytes, Bytes> offsetConsumer(ApplicationProperties properties)
-		{
-			Properties props = new Properties();
-			props.put("bootstrap.servers", properties.getBootstrapServer());
-			props.put("client.id", "OFFSET-CONSUMER");
-			props.put("group.id", properties.getGroupId());
-			props.put("key.deserializer", BytesDeserializer.class.getName());
-			props.put("value.deserializer", BytesDeserializer.class.getName());
-
-			return new KafkaConsumer<>(props);
-		}
 	}
 }