X-Git-Url: http://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Ftest%2Fjava%2Fde%2Fjuplo%2Fkafka%2FApplicationTests.java;h=ee8e8c418d91ee08f92f21973e064a19dfbed75e;hb=4aef11c37556c827397af6c25f5c129cd0147a68;hp=35d13cdda9ecb9749edbaeb6be8fc905fbe30c45;hpb=9d3fa83eb656617162d54a14e1bfcb330fa4ee3a;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 35d13cd..ee8e8c4 100644 --- a/src/test/java/de/juplo/kafka/ApplicationTests.java +++ b/src/test/java/de/juplo/kafka/ApplicationTests.java @@ -7,17 +7,17 @@ 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.BytesDeserializer; -import org.apache.kafka.common.serialization.BytesSerializer; -import org.apache.kafka.common.serialization.LongSerializer; -import org.apache.kafka.common.serialization.StringSerializer; +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.kafka.KafkaAutoConfiguration; 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.context.annotation.Primary; +import org.springframework.kafka.support.serializer.JsonSerializer; import org.springframework.kafka.test.context.EmbeddedKafka; import org.springframework.test.context.TestPropertySource; import org.springframework.test.context.junit.jupiter.SpringJUnitConfig; @@ -25,22 +25,24 @@ import org.springframework.test.context.junit.jupiter.SpringJUnitConfig; 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.BiFunction; import java.util.function.Consumer; -import java.util.function.Function; import java.util.stream.Collectors; import java.util.stream.IntStream; import static de.juplo.kafka.ApplicationTests.PARTITIONS; import static de.juplo.kafka.ApplicationTests.TOPIC; -import static org.assertj.core.api.Assertions.assertThat; +import static org.assertj.core.api.Assertions.*; import static org.awaitility.Awaitility.*; -import static org.junit.jupiter.api.Assertions.assertDoesNotThrow; -import static org.junit.jupiter.api.Assertions.assertThrows; -@SpringJUnitConfig(initializers = ConfigDataApplicationContextInitializer.class) +@SpringJUnitConfig( + initializers = ConfigDataApplicationContextInitializer.class, + classes = { + EndlessConsumer.class, + KafkaAutoConfiguration.class, + ApplicationTests.Configuration.class }) @TestMethodOrder(MethodOrderer.OrderAnnotation.class) @TestPropertySource( properties = { @@ -55,24 +57,25 @@ class ApplicationTests StringSerializer stringSerializer = new StringSerializer(); - LongSerializer longSerializer = new LongSerializer(); + @Autowired + Serializer valueSerializer; @Autowired KafkaProducer kafkaProducer; @Autowired - KafkaConsumer kafkaConsumer; + KafkaConsumer kafkaConsumer; @Autowired KafkaConsumer offsetConsumer; @Autowired ApplicationProperties properties; @Autowired - ExecutorService executor; + EndlessConsumer endlessConsumer; + @Autowired + RecordHandler recordHandler; - Consumer> testHandler; - EndlessConsumer endlessConsumer; Map oldOffsets; Map newOffsets; - Set> receivedRecords; + Set> receivedRecords; /** Tests methods */ @@ -81,7 +84,7 @@ class ApplicationTests @Order(1) // << The poistion pill is not skipped. Hence, this test must run first void commitsCurrentOffsetsOnSuccess() throws ExecutionException, InterruptedException { - send100Messages(i -> new Bytes(longSerializer.serialize(TOPIC, i))); + send100Messages((key, counter) -> serialize(key, counter)); await("100 records received") .atMost(Duration.ofSeconds(30)) @@ -95,45 +98,35 @@ class ApplicationTests compareToCommitedOffsets(newOffsets); }); - assertThrows( - IllegalStateException.class, - () -> endlessConsumer.exitStatus(), - "Consumer should still be running"); + assertThatExceptionOfType(IllegalStateException.class) + .isThrownBy(() -> endlessConsumer.exitStatus()) + .describedAs("Consumer should still be running"); } @Test @Order(2) void commitsOffsetOfErrorForReprocessingOnError() { - send100Messages(counter -> + send100Messages((key, counter) -> counter == 77 ? new Bytes(stringSerializer.serialize(TOPIC, "BOOM!")) - : new Bytes(longSerializer.serialize(TOPIC, counter))); - - await("Consumer failed") - .atMost(Duration.ofSeconds(30)) - .until(() -> !endlessConsumer.running()); - - checkSeenOffsetsForProgress(); - compareToCommitedOffsets(newOffsets); + : serialize(key, counter)); - endlessConsumer.start(); await("Consumer failed") .atMost(Duration.ofSeconds(30)) - .until(() -> !endlessConsumer.running()); + .untilAsserted(() -> checkSeenOffsetsForProgress()); - checkSeenOffsetsForProgress(); compareToCommitedOffsets(newOffsets); assertThat(receivedRecords.size()) .describedAs("Received not all sent events") .isLessThan(100); - assertDoesNotThrow( - () -> endlessConsumer.exitStatus(), - "Consumer should not be running"); + assertThatNoException() + .describedAs("Consumer should not be running") + .isThrownBy(() -> endlessConsumer.exitStatus()); assertThat(endlessConsumer.exitStatus()) - .describedAs("Consumer should have exited abnormally") - .containsInstanceOf(RecordDeserializationException.class); + .containsInstanceOf(RecordDeserializationException.class) + .describedAs("Consumer should have exited abnormally"); } @@ -190,7 +183,7 @@ class ApplicationTests } - void send100Messages(Function messageGenerator) + void send100Messages(BiFunction messageGenerator) { long i = 0; @@ -198,7 +191,7 @@ class ApplicationTests { for (int key = 0; key < 10; key++) { - Bytes value = messageGenerator.apply(++i); + Bytes value = messageGenerator.apply(key, ++i); ProducerRecord record = new ProducerRecord<>( @@ -207,6 +200,7 @@ class ApplicationTests Integer.toString(key%2), value); + record.headers().add("__TypeId__", "message".getBytes()); kafkaProducer.send(record, (metadata, e) -> { if (metadata != null) @@ -231,11 +225,19 @@ class ApplicationTests } } + Bytes serialize(Integer key, Long value) + { + ClientMessage message = new ClientMessage(); + message.setClient(key.toString()); + message.setMessage(value.toString()); + return new Bytes(valueSerializer.serialize(TOPIC, message)); + } + @BeforeEach public void init() { - testHandler = record -> {} ; + recordHandler.testHandler = (record) -> {}; oldOffsets = new HashMap<>(); newOffsets = new HashMap<>(); @@ -247,24 +249,15 @@ class ApplicationTests newOffsets.put(tp, offset - 1); }); - Consumer> captureOffsetAndExecuteTestHandler = + recordHandler.captureOffsets = record -> { + receivedRecords.add(record); newOffsets.put( new TopicPartition(record.topic(), record.partition()), record.offset()); - receivedRecords.add(record); - testHandler.accept(record); }; - endlessConsumer = - new EndlessConsumer<>( - executor, - properties.getClientId(), - properties.getTopic(), - kafkaConsumer, - captureOffsetAndExecuteTestHandler); - endlessConsumer.start(); } @@ -281,11 +274,38 @@ class ApplicationTests } } + public static class RecordHandler implements Consumer> + { + Consumer> captureOffsets; + Consumer> testHandler; + + + @Override + public void accept(ConsumerRecord record) + { + captureOffsets + .andThen(testHandler) + .accept(record); + } + } @TestConfiguration @Import(ApplicationConfiguration.class) public static class Configuration { + @Primary + @Bean + public Consumer> testHandler() + { + return new RecordHandler(); + } + + @Bean + Serializer serializer() + { + return new JsonSerializer<>(); + } + @Bean KafkaProducer kafkaProducer(ApplicationProperties properties) {