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.apache.kafka.streams.state.KeyValueBytesStoreSupplier;
   8 import org.apache.kafka.streams.state.Stores;
   9 import org.junit.jupiter.api.BeforeAll;
  10 import org.junit.jupiter.api.DisplayName;
  11 import org.junit.jupiter.api.Test;
  12 import org.springframework.beans.factory.annotation.Autowired;
  13 import org.springframework.boot.test.context.SpringBootTest;
  14 import org.springframework.boot.test.context.TestConfiguration;
  15 import org.springframework.context.annotation.Bean;
  16 import org.springframework.context.annotation.Primary;
  17 import org.springframework.kafka.annotation.KafkaListener;
  18 import org.springframework.kafka.core.KafkaTemplate;
  19 import org.springframework.kafka.support.KafkaHeaders;
  20 import org.springframework.kafka.support.SendResult;
  21 import org.springframework.kafka.test.context.EmbeddedKafka;
  22 import org.springframework.messaging.handler.annotation.Header;
  23 import org.springframework.messaging.handler.annotation.Payload;
  24 import org.springframework.util.LinkedMultiValueMap;
  25 import org.springframework.util.MultiValueMap;
  26
  27 import java.time.Duration;
  28 import java.util.stream.Stream;
  29
  30 import static org.awaitility.Awaitility.await;
  31
  32
  33 @SpringBootTest(
  34                 properties = {
  35                                 "spring.kafka.producer.key-serializer=org.springframework.kafka.support.serializer.JsonSerializer",
  36                                 "spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer",
  37                                 "spring.kafka.producer.properties.spring.json.type.mapping=word:de.juplo.kafka.wordcount.counter.TestWord,counter:de.juplo.kafka.wordcount.counter.TestCounter",
  38                                 "spring.kafka.consumer.auto-offset-reset=earliest",
  39                                 "spring.kafka.consumer.key-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer",
  40                                 "spring.kafka.consumer.value-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer",
  41                                 "spring.kafka.consumer.properties.spring.json.use.type.headers=false",
  42                                 "spring.kafka.consumer.properties.spring.json.key.default.type=de.juplo.kafka.wordcount.top10.User",
  43                                 "spring.kafka.consumer.properties.spring.json.value.default.type=de.juplo.kafka.wordcount.query.TestRanking",
  44                                 "spring.kafka.consumer.properties.spring.json.trusted.packages=de.juplo.kafka.wordcount.top10   ",
  45                                 "logging.level.root=WARN",
  46                                 "logging.level.de.juplo=DEBUG",
  47                                 "logging.level.org.apache.kafka.clients=INFO",
  48                                 "logging.level.org.apache.kafka.streams=INFO",
  49                                 "juplo.wordcount.top10.bootstrap-server=${spring.embedded.kafka.brokers}",
  50                                 "juplo.wordcount.top10.commit-interval=100",
  51                                 "juplo.wordcount.top10.cacheMaxBytes=0",
  52                                 "juplo.wordcount.top10.input-topic=" + Top10ApplicationIT.TOPIC_IN,
  53                                 "juplo.wordcount.top10.output-topic=" + Top10ApplicationIT.TOPIC_OUT })
  54 @EmbeddedKafka(topics = { Top10ApplicationIT.TOPIC_IN, Top10ApplicationIT.TOPIC_OUT })
  55 @Slf4j
  56 public class Top10ApplicationIT
  57 {
  58         public static final String TOPIC_IN = "in";
  59         public static final String TOPIC_OUT = "out";
  60         public static final String STORE_NAME = "TEST-STORE";
  61
  62         @Autowired
  63         Consumer consumer;
  64         @Autowired
  65         Top10StreamProcessor streamProcessor;
  66
  67
  68         @BeforeAll
  69         public static void testSendMessage(
  70                         @Autowired KafkaTemplate<TestWord, TestCounter> kafkaTemplate)
  71         {
  72                 Stream
  73                                 .of(TestData.INPUT_MESSAGES)
  74                                 .forEach(kv ->
  75                                 {
  76                                         try
  77                                         {
  78                                                 SendResult<TestWord, TestCounter> result = kafkaTemplate.send(TOPIC_IN, kv.key, kv.value).get();
  79                                                 log.info(
  80                                                                 "Sent: {}={}, partition={}, offset={}",
  81                                                                 result.getProducerRecord().key(),
  82                                                                 result.getProducerRecord().value(),
  83                                                                 result.getRecordMetadata().partition(),
  84                                                                 result.getRecordMetadata().offset());
  85                                         }
  86                                         catch (Exception e)
  87                                         {
  88                                                 throw new RuntimeException(e);
  89                                         }
  90                                 });
  91         }
  92
  93         @DisplayName("Await the expected state in the state-store")
  94         @Test
  95         public void testAwaitExpectedState()
  96         {
  97                 await("Expected state")
  98                                 .atMost(Duration.ofSeconds(5))
  99                                 .untilAsserted(() -> TestData.assertExpectedState(streamProcessor.getStore(STORE_NAME)));
 100         }
 101
 102         @DisplayName("Await the expected output messages")
 103         @Test
 104         public void testAwaitExpectedMessages()
 105         {
 106                 await("Expected messages")
 107                                 .atMost(Duration.ofSeconds(5))
 108                                 .untilAsserted(() -> TestData.assertExpectedMessages(consumer.getReceivedMessages()));
 109         }
 110
 111
 112         static class Consumer
 113         {
 114                 private final MultiValueMap<User, Ranking> received = new LinkedMultiValueMap<>();
 115
 116                 @KafkaListener(groupId = "TEST", topics = TOPIC_OUT)
 117                 public synchronized void receive(
 118                                 @Header(KafkaHeaders.RECEIVED_KEY) User user,
 119                                 @Payload TestRanking ranking)
 120                 {
 121                         log.debug("Received message: {} -> {}", user, ranking);
 122                         received.add(user, Ranking.of(ranking.getEntries()));
 123                 }
 124
 125                 synchronized MultiValueMap<User, Ranking> getReceivedMessages()
 126                 {
 127                         return received;
 128                 }
 129         }
 130
 131         @TestConfiguration
 132         static class Configuration
 133         {
 134                 @Bean
 135                 Consumer consumer()
 136                 {
 137                         return new Consumer();
 138                 }
 139
 140                 @Primary
 141                 @Bean
 142                 KeyValueBytesStoreSupplier inMemoryStoreSupplier()
 143                 {
 144                         return Stores.inMemoryKeyValueStore(STORE_NAME);
 145                 }
 146         }
 147 }