juplo.de Git - demos/kafka/wordcount/blob - src/test/java/de/juplo/kafka/wordcount/splitter/SplitterApplicationIT.java

   1 package de.juplo.kafka.wordcount.splitter;
   2
   3 import de.juplo.kafka.wordcount.counter.TestWord;
   4 import lombok.extern.slf4j.Slf4j;
   5 import org.junit.jupiter.api.BeforeEach;
   6 import org.junit.jupiter.api.Test;
   7 import org.springframework.beans.factory.annotation.Autowired;
   8 import org.springframework.boot.test.context.SpringBootTest;
   9 import org.springframework.boot.test.context.TestConfiguration;
  10 import org.springframework.context.annotation.Bean;
  11 import org.springframework.kafka.annotation.KafkaListener;
  12 import org.springframework.kafka.core.KafkaTemplate;
  13 import org.springframework.kafka.support.KafkaHeaders;
  14 import org.springframework.kafka.test.context.EmbeddedKafka;
  15 import org.springframework.messaging.handler.annotation.Header;
  16 import org.springframework.messaging.handler.annotation.Payload;
  17 import org.springframework.util.LinkedMultiValueMap;
  18 import org.springframework.util.MultiValueMap;
  19
  20 import java.time.Duration;
  21
  22 import static de.juplo.kafka.wordcount.splitter.SplitterApplicationIT.*;
  23 import static org.awaitility.Awaitility.await;
  24
  25
  26 @SpringBootTest(
  27                 properties = {
  28                                 "spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer",
  29                                 "spring.kafka.producer.properties.spring.json.add.type.headers=false",
  30                                 "spring.kafka.consumer.auto-offset-reset=earliest",
  31                                 "spring.kafka.consumer.value-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer",
  32                                 "spring.kafka.consumer.properties.spring.json.value.default.type=de.juplo.kafka.wordcount.counter.TestWord",
  33                                 "spring.kafka.consumer.properties.spring.json.trusted.packages=de.juplo.kafka.wordcount.splitter",
  34                                 "logging.level.root=WARN",
  35                                 "logging.level.de.juplo=DEBUG",
  36                                 "juplo.wordcount.splitter.bootstrap-server=${spring.embedded.kafka.brokers}",
  37                                 "juplo.wordcount.splitter.input-topic=" + TOPIC_IN,
  38                                 "juplo.wordcount.splitter.output-topic=" + TOPIC_OUT })
  39 @EmbeddedKafka(topics = { TOPIC_IN, TOPIC_OUT })
  40 @Slf4j
  41 public class SplitterApplicationIT
  42 {
  43         public final static String TOPIC_IN = "in";
  44         public final static String TOPIC_OUT = "out";
  45
  46         @Autowired
  47         KafkaTemplate<String, Recording> kafkaTemplate;
  48         @Autowired
  49         Consumer consumer;
  50
  51
  52         @BeforeEach
  53         public void clear()
  54         {
  55                 consumer.received.clear();
  56         }
  57
  58         @Test
  59         void testSendMessage() throws Exception
  60         {
  61                 TestData.writeInputData((user, recording) -> kafkaTemplate.send(TOPIC_IN, user, recording));
  62
  63                 await("Expexted converted data")
  64                                 .atMost(Duration.ofSeconds(5))
  65                                 .untilAsserted(() ->
  66                                                 TestData.assertExpectedMessages(consumer.getReceivedMessages()));
  67         }
  68
  69
  70         static class Consumer
  71         {
  72                 private final MultiValueMap<String, TestWord> received = new LinkedMultiValueMap<>();
  73
  74                 @KafkaListener(groupId = "TEST", topics = TOPIC_OUT)
  75                 public synchronized void receive(
  76                                 @Header(KafkaHeaders.RECEIVED_KEY) String key,
  77                                 @Payload TestWord value)
  78                 {
  79                         log.debug("Received message: {}={}", key, value);
  80                         received.add(key, value);
  81                 }
  82
  83                 synchronized MultiValueMap<String, TestWord> getReceivedMessages()
  84                 {
  85                         return received;
  86                 }
  87         }
  88
  89
  90         @TestConfiguration
  91         static class Configuration
  92         {
  93                 @Bean
  94                 Consumer consumer()
  95                 {
  96                         return new Consumer();
  97                 }
  98         }
  99 }