juplo.de Git - demos/kafka/wordcount/blob - src/test/java/de/juplo/kafka/wordcount/top10/Top10ApplicationIT.java

   1 package de.juplo.kafka.wordcount.top10;
   2
   3 import de.juplo.kafka.wordcount.counter.TestWord;
   4 import de.juplo.kafka.wordcount.counter.TestCounter;
   5 import de.juplo.kafka.wordcount.query.TestRanking;
   6 import lombok.extern.slf4j.Slf4j;
   7 import org.junit.jupiter.api.BeforeAll;
   8 import org.junit.jupiter.api.DisplayName;
   9 import org.junit.jupiter.api.Test;
  10 import org.springframework.beans.factory.annotation.Autowired;
  11 import org.springframework.boot.test.context.SpringBootTest;
  12 import org.springframework.boot.test.context.TestConfiguration;
  13 import org.springframework.context.annotation.Bean;
  14 import org.springframework.kafka.annotation.KafkaListener;
  15 import org.springframework.kafka.core.KafkaTemplate;
  16 import org.springframework.kafka.support.KafkaHeaders;
  17 import org.springframework.kafka.support.SendResult;
  18 import org.springframework.kafka.test.context.EmbeddedKafka;
  19 import org.springframework.messaging.handler.annotation.Header;
  20 import org.springframework.messaging.handler.annotation.Payload;
  21 import org.springframework.util.LinkedMultiValueMap;
  22 import org.springframework.util.MultiValueMap;
  23
  24 import java.time.Duration;
  25 import java.util.stream.Stream;
  26
  27 import static org.awaitility.Awaitility.await;
  28
  29
  30 @SpringBootTest(
  31                 properties = {
  32                                 "spring.kafka.producer.key-serializer=org.springframework.kafka.support.serializer.JsonSerializer",
  33                                 "spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer",
  34                                 "spring.kafka.producer.properties.spring.json.type.mapping=word:de.juplo.kafka.wordcount.counter.TestWord,counter:de.juplo.kafka.wordcount.counter.TestCounter",
  35                                 "spring.kafka.consumer.auto-offset-reset=earliest",
  36                                 "spring.kafka.consumer.key-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer",
  37                                 "spring.kafka.consumer.value-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer",
  38                                 "spring.kafka.consumer.properties.spring.json.use.type.headers=false",
  39                                 "spring.kafka.consumer.properties.spring.json.key.default.type=de.juplo.kafka.wordcount.top10.User",
  40                                 "spring.kafka.consumer.properties.spring.json.value.default.type=de.juplo.kafka.wordcount.query.TestRanking",
  41                                 "spring.kafka.consumer.properties.spring.json.trusted.packages=de.juplo.kafka.wordcount.top10   ",
  42                                 "logging.level.root=WARN",
  43                                 "logging.level.de.juplo=DEBUG",
  44                                 "juplo.wordcount.top10.bootstrap-server=${spring.embedded.kafka.brokers}",
  45                                 "juplo.wordcount.top10.input-topic=" + Top10ApplicationIT.TOPIC_IN,
  46                                 "juplo.wordcount.top10.output-topic=" + Top10ApplicationIT.TOPIC_OUT })
  47 @EmbeddedKafka(topics = { Top10ApplicationIT.TOPIC_IN, Top10ApplicationIT.TOPIC_OUT })
  48 @Slf4j
  49 public class Top10ApplicationIT
  50 {
  51         public static final String TOPIC_IN = "in";
  52         public static final String TOPIC_OUT = "out";
  53
  54         @Autowired
  55         Consumer consumer;
  56
  57
  58         @BeforeAll
  59         public static void testSendMessage(
  60                         @Autowired KafkaTemplate<TestWord, TestCounter> kafkaTemplate)
  61         {
  62                 Stream
  63                                 .of(TestData.INPUT_MESSAGES)
  64                                 .forEach(kv ->
  65                                 {
  66                                         try
  67                                         {
  68                                                 SendResult<TestWord, TestCounter> result = kafkaTemplate.send(TOPIC_IN, kv.key, kv.value).get();
  69                                                 log.info(
  70                                                                 "Sent: {}={}, partition={}, offset={}",
  71                                                                 result.getProducerRecord().key(),
  72                                                                 result.getProducerRecord().value(),
  73                                                                 result.getRecordMetadata().partition(),
  74                                                                 result.getRecordMetadata().offset());
  75                                         }
  76                                         catch (Exception e)
  77                                         {
  78                                                 throw new RuntimeException(e);
  79                                         }
  80                                 });
  81         }
  82
  83         @DisplayName("Await the expected output messages")
  84         @Test
  85         public void testAwaitExpectedMessages()
  86         {
  87                 await("Expected messages")
  88                                 .atMost(Duration.ofSeconds(5))
  89                                 .untilAsserted(() -> TestData.assertExpectedMessages(consumer.getReceivedMessages()));
  90         }
  91
  92
  93         static class Consumer
  94         {
  95                 private final MultiValueMap<User, Ranking> received = new LinkedMultiValueMap<>();
  96
  97                 @KafkaListener(groupId = "TEST", topics = TOPIC_OUT)
  98                 public synchronized void receive(
  99                                 @Header(KafkaHeaders.RECEIVED_KEY) User user,
 100                                 @Payload TestRanking ranking)
 101                 {
 102                         log.debug("Received message: {} -> {}", user, ranking);
 103                         received.add(user, Ranking.of(ranking.getEntries()));
 104                 }
 105
 106                 synchronized MultiValueMap<User, Ranking> getReceivedMessages()
 107                 {
 108                         return received;
 109                 }
 110         }
 111
 112         @TestConfiguration
 113         static class Configuration
 114         {
 115                 @Bean
 116                 Consumer consumer()
 117                 {
 118                         return new Consumer();
 119                 }
 120         }
 121 }