Files
spring-cloud-stream-samples/multibinder-samples/multibinder-two-kafka-clusters/src/test/java/multibinder/TwoKafkaBindersApplicationTest.java
2019-06-19 17:24:14 -04:00

102 lines
4.5 KiB
Java

/*
* Copyright 2015-2016 the original author or authors.
*
* Licensed 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
*
* https://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 multibinder;
import org.hamcrest.CoreMatchers;
import org.hamcrest.Matchers;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.ClassRule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.DirectFieldAccessor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.cloud.stream.binder.Binder;
import org.springframework.cloud.stream.binder.BinderFactory;
import org.springframework.cloud.stream.binder.ExtendedConsumerProperties;
import org.springframework.cloud.stream.binder.kafka.KafkaMessageChannelBinder;
import org.springframework.cloud.stream.binder.kafka.properties.KafkaBinderConfigurationProperties;
import org.springframework.cloud.stream.binder.kafka.properties.KafkaConsumerProperties;
import org.springframework.integration.channel.QueueChannel;
import org.springframework.kafka.test.rule.EmbeddedKafkaRule;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageChannel;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.junit4.SpringRunner;
import java.util.UUID;
import static org.hamcrest.Matchers.arrayWithSize;
import static org.hamcrest.Matchers.equalTo;
@RunWith(SpringRunner.class)
@SpringBootTest(
webEnvironment = SpringBootTest.WebEnvironment.NONE)
@DirtiesContext
public class TwoKafkaBindersApplicationTest {
@ClassRule
public static EmbeddedKafkaRule kafkaTestSupport1 = new EmbeddedKafkaRule(1, true, "input", "output");
@ClassRule
public static EmbeddedKafkaRule kafkaTestSupport2 = new EmbeddedKafkaRule(1, true, "input", "output");
@BeforeClass
public static void setupEnvironment() {
System.setProperty("kafkaBroker1", kafkaTestSupport1.getEmbeddedKafka().getBrokersAsString());
System.setProperty("kafkaBroker2", kafkaTestSupport2.getEmbeddedKafka().getBrokersAsString());
}
@Autowired
private BinderFactory binderFactory;
@Test
public void contextLoads() {
Binder<MessageChannel, ?, ?> binder1 = binderFactory.getBinder("kafka1", MessageChannel.class);
KafkaMessageChannelBinder kafka1 = (KafkaMessageChannelBinder) binder1;
DirectFieldAccessor directFieldAccessor1 = new DirectFieldAccessor(kafka1);
KafkaBinderConfigurationProperties configuration1 =
(KafkaBinderConfigurationProperties) directFieldAccessor1.getPropertyValue("configurationProperties");
Assert.assertThat(configuration1.getBrokers(), arrayWithSize(1));
Assert.assertThat(configuration1.getBrokers()[0], equalTo(kafkaTestSupport1.getEmbeddedKafka().getBrokersAsString()));
Binder<MessageChannel, ?, ?> binder2 = binderFactory.getBinder("kafka2", MessageChannel.class);
KafkaMessageChannelBinder kafka2 = (KafkaMessageChannelBinder) binder2;
DirectFieldAccessor directFieldAccessor2 = new DirectFieldAccessor(kafka2);
KafkaBinderConfigurationProperties configuration2 =
(KafkaBinderConfigurationProperties) directFieldAccessor2.getPropertyValue("configurationProperties");
Assert.assertThat(configuration2.getBrokers(), arrayWithSize(1));
Assert.assertThat(configuration2.getBrokers()[0], equalTo(kafkaTestSupport2.getEmbeddedKafka().getBrokersAsString()));
}
@Test
public void messagingWorks() {
QueueChannel dataConsumer = new QueueChannel();
((KafkaMessageChannelBinder) binderFactory.getBinder("kafka2", MessageChannel.class)).bindConsumer("dataOut", UUID.randomUUID().toString(),
dataConsumer, new ExtendedConsumerProperties<>(new KafkaConsumerProperties()));
//receiving test message sent by the test producer in the application
Message<?> receive = dataConsumer.receive(60_000);
Assert.assertThat(receive, Matchers.notNullValue());
Assert.assertThat(receive.getPayload(), CoreMatchers.equalTo("foo".getBytes()));
}
}