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Add junit test for health indicator

feature/add-travis-ci-remove-gitlab-ci
Emanuel Zienecker 2019-04-01 18:18:24 +02:00
parent d63d6fabac
commit 1f5a9eff6d
3 changed files with 114 additions and 4 deletions
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27
pom.xml
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@ -23,10 +23,12 @@
<docker-maven-plugin.version>0.27.2</docker-maven-plugin.version>
<jgitflow-maven-plugin.version>1.0-m5.1</jgitflow-maven-plugin.version>
<spring-boot-starter.version>2.1.1.RELEASE</spring-boot-starter.version>
<spring.kafka.version>2.1.7.RELEASE</spring.kafka.version>
<spring.kafka.version>2.2.4.RELEASE</spring.kafka.version>
<maven-surefire-plugin.version>2.22.1</maven-surefire-plugin.version>
<maven-failsafe-plugin.version>2.22.1</maven-failsafe-plugin.version>
<assertj-core.version>3.11.1</assertj-core.version>
<guava.version>27.1-jre</guava.version>
</properties>
<dependencies>
@ -42,6 +44,11 @@
<version>${spring.kafka.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>${guava.version}</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
@ -61,6 +68,24 @@
<version>${junit.jupiter.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj-core.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-test</artifactId>
<version>2.1.2.RELEASE</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka-test</artifactId>
<version>${spring.kafka.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>

9
src/main/java/com/deviceinsight/kafka/health/KafkaConsumingHealthIndicator.java
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@ -2,6 +2,7 @@ package com.deviceinsight.kafka.health;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
import com.google.common.annotations.VisibleForTesting;
import org.apache.kafka.clients.consumer.Consumer;
import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.clients.consumer.ConsumerRebalanceListener;
@ -19,6 +20,7 @@ import org.springframework.boot.actuate.health.Health;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.time.Duration;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
@ -100,7 +102,8 @@ public class KafkaConsumingHealthIndicator extends AbstractHealthIndicator {
}
}
private void subscribeToTopic() throws InterruptedException {
@VisibleForTesting
void subscribeToTopic() throws InterruptedException {
final CountDownLatch subscribed = new CountDownLatch(1);
@ -123,7 +126,7 @@ public class KafkaConsumingHealthIndicator extends AbstractHealthIndicator {
}
});
consumer.poll(pollTimeoutMs);
consumer.poll(Duration.ofMillis(pollTimeoutMs));
if (!subscribed.await(subscriptionTimeoutMs, MILLISECONDS)) {
throw new RuntimeException("Subscription to kafka failed, topic=" + topic);
}
@ -173,7 +176,7 @@ public class KafkaConsumingHealthIndicator extends AbstractHealthIndicator {
private boolean messageNotReceived(String message) {
return StreamSupport.stream(consumer.poll(pollTimeoutMs).spliterator(), false)
return StreamSupport.stream(consumer.poll(Duration.ofMillis(pollTimeoutMs)).spliterator(), false)
.noneMatch(msg -> msg.key().equals(message) && msg.value().equals(message));
}

82
src/test/java/com/deviceinsight/kafka/health/KafkaConsumingHealthIndicatorTest.java 100644
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@ -0,0 +1,82 @@
package com.deviceinsight.kafka.health;
import static com.deviceinsight.kafka.health.KafkaConsumingHealthIndicatorTest.TOPIC;
import static org.assertj.core.api.Assertions.assertThat;
import kafka.server.KafkaServer;
import org.apache.kafka.clients.consumer.Consumer;
import org.apache.kafka.common.serialization.StringDeserializer;
import org.junit.jupiter.api.AfterAll;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.TestInstance;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.actuate.health.Health;
import org.springframework.boot.actuate.health.Status;
import org.springframework.boot.autoconfigure.kafka.KafkaProperties;
import org.springframework.kafka.core.DefaultKafkaConsumerFactory;
import org.springframework.kafka.test.EmbeddedKafkaBroker;
import org.springframework.kafka.test.context.EmbeddedKafka;
import org.springframework.kafka.test.core.BrokerAddress;
import org.springframework.kafka.test.utils.KafkaTestUtils;
import org.springframework.test.context.junit.jupiter.SpringExtension;
import java.time.Duration;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
@ExtendWith(SpringExtension.class)
@EmbeddedKafka(topics = {TOPIC})
@TestInstance(TestInstance.Lifecycle.PER_CLASS)
public class KafkaConsumingHealthIndicatorTest {
static final String TOPIC = "health-checks";
private Consumer<String, String> consumer;
@Autowired
private EmbeddedKafkaBroker embeddedKafkaBroker;
@BeforeAll
public void setUp() {
Map<String, Object> consumerConfigs =
new HashMap<>(KafkaTestUtils.consumerProps("consumer", "false", embeddedKafkaBroker));
consumer = new DefaultKafkaConsumerFactory<>(consumerConfigs, new StringDeserializer(),
new StringDeserializer()).createConsumer();
consumer.subscribe(Collections.singletonList(TOPIC));
consumer.poll(Duration.ofSeconds(1));
}
@AfterAll
public void tearDown() {
consumer.close();
embeddedKafkaBroker.getKafkaServers().forEach(KafkaServer::shutdown);
embeddedKafkaBroker.getKafkaServers().forEach(KafkaServer::awaitShutdown);
}
@Test
public void kafkaIsDown() throws Exception {
KafkaHealthProperties kafkaHealthProperties = new KafkaHealthProperties();
kafkaHealthProperties.setTopic(TOPIC);
final KafkaProperties kafkaProperties = new KafkaProperties();
BrokerAddress[] brokerAddresses = embeddedKafkaBroker.getBrokerAddresses();
kafkaProperties.setBootstrapServers(Collections.singletonList(brokerAddresses[0].toString()));
KafkaConsumingHealthIndicator healthIndicator =
new KafkaConsumingHealthIndicator(kafkaHealthProperties, kafkaProperties.buildConsumerProperties(),
kafkaProperties.buildProducerProperties());
healthIndicator.subscribeToTopic();
Health health = healthIndicator.health();
assertThat(health.getStatus()).isEqualTo(Status.UP);
shutdownKafka();
}
private void shutdownKafka() {
this.embeddedKafkaBroker.destroy();
}
}