Edit FYI: working gitHub example

I was searching the internet and couldn't find a working and simple example of an embedded Kafka test.

My setup is:

• Spring boot
• Multiple @KafkaListener with different topics in one class
• Embedded Kafka for test which is starting fine
• Test with Kafkatemplate which is sending to topic but the @KafkaListener methods are not receiving anything even after a huge sleep time
• No warnings or errors are shown, only info spam from Kafka in logs

Please help me. There are mostly over configured or overengineered examples. I am sure it can be done simple. Thanks, guys!

@Controller
public class KafkaController {

    private static final Logger LOG = getLogger(KafkaController.class);

    @KafkaListener(topics = "test.kafka.topic")
    public void receiveDunningHead(final String payload) {
        LOG.debug("Receiving event with payload [{}]", payload);
        //I will do database stuff here which i could check in db for testing
    }
}

private static String SENDER_TOPIC = "test.kafka.topic";

@ClassRule
public static KafkaEmbedded embeddedKafka = new KafkaEmbedded(1, true, SENDER_TOPIC);

@Test
    public void testSend() throws InterruptedException, ExecutionException {

        Map senderProps = KafkaTestUtils.producerProps(embeddedKafka);

        KafkaProducer producer = new KafkaProducer<>(senderProps);
        producer.send(new ProducerRecord<>(SENDER_TOPIC, 0, 0, "message00")).get();
        producer.send(new ProducerRecord<>(SENDER_TOPIC, 0, 1, "message01")).get();
        producer.send(new ProducerRecord<>(SENDER_TOPIC, 1, 0, "message10")).get();
        Thread.sleep(10000);
    }