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.TestCounter;
   4 import de.juplo.kafka.wordcount.counter.TestWord;
   5 import de.juplo.kafka.wordcount.query.TestRanking;
   6 import de.juplo.kafka.wordcount.query.TestUser;
   7 import lombok.extern.slf4j.Slf4j;
   8 import org.apache.kafka.streams.state.KeyValueBytesStoreSupplier;
   9 import org.apache.kafka.streams.state.Stores;
  10 import org.junit.jupiter.api.BeforeAll;
  11 import org.junit.jupiter.api.Disabled;
  12 import org.junit.jupiter.api.DisplayName;
  13 import org.junit.jupiter.api.Test;
  14 import org.springframework.beans.factory.annotation.Autowired;
  15 import org.springframework.boot.test.context.SpringBootTest;
  16 import org.springframework.boot.test.context.TestConfiguration;
  17 import org.springframework.context.annotation.Bean;
  18 import org.springframework.context.annotation.Primary;
  19 import org.springframework.kafka.annotation.KafkaListener;
  20 import org.springframework.kafka.core.KafkaTemplate;
  21 import org.springframework.kafka.support.KafkaHeaders;
  22 import org.springframework.kafka.support.SendResult;
  23 import org.springframework.kafka.test.context.EmbeddedKafka;
  24 import org.springframework.messaging.handler.annotation.Header;
  25 import org.springframework.messaging.handler.annotation.Payload;
  26 import org.springframework.util.LinkedMultiValueMap;
  27 import org.springframework.util.MultiValueMap;
  28
  29 import java.time.Duration;
  30
  31 import static de.juplo.kafka.wordcount.top10.Top10StreamProcessor.STORE_NAME;
  32 import static org.awaitility.Awaitility.await;
  33
  34
  35 @SpringBootTest(
  36                 properties = {
  37                                 "spring.kafka.producer.key-serializer=org.springframework.kafka.support.serializer.JsonSerializer",
  38                                 "spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer",
  39                                 "spring.kafka.producer.properties.spring.json.type.mapping=word:de.juplo.kafka.wordcount.counter.TestWord,counter:de.juplo.kafka.wordcount.counter.TestCounter",
  40                                 "spring.kafka.consumer.auto-offset-reset=earliest",
  41                                 "spring.kafka.consumer.key-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer",
  42                                 "spring.kafka.consumer.value-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer",
  43                                 "spring.kafka.consumer.properties.spring.json.type.mapping=user:de.juplo.kafka.wordcount.query.TestUser,ranking:de.juplo.kafka.wordcount.query.TestRanking",
  44                                 "logging.level.root=WARN",
  45                                 "logging.level.de.juplo=DEBUG",
  46                                 "logging.level.org.apache.kafka.clients=INFO",
  47                                 "logging.level.org.apache.kafka.streams=INFO",
  48                                 "juplo.wordcount.top10.bootstrap-server=${spring.embedded.kafka.brokers}",
  49                                 "juplo.wordcount.top10.commit-interval=100",
  50                                 "juplo.wordcount.top10.cacheMaxBytes=0",
  51                                 "juplo.wordcount.top10.input-topic=" + Top10ApplicationIT.TOPIC_IN,
  52                                 "juplo.wordcount.top10.output-topic=" + Top10ApplicationIT.TOPIC_OUT })
  53 @EmbeddedKafka(topics = { Top10ApplicationIT.TOPIC_IN, Top10ApplicationIT.TOPIC_OUT })
  54 @Slf4j
  55 public class Top10ApplicationIT
  56 {
  57         public static final String TOPIC_IN = "in";
  58         public static final String TOPIC_OUT = "out";
  59
  60         @Autowired
  61         Consumer consumer;
  62         @Autowired
  63         Top10StreamProcessor streamProcessor;
  64
  65
  66         @BeforeAll
  67         public static void testSendMessage(
  68                         @Autowired KafkaTemplate<TestWord, TestCounter> kafkaTemplate)
  69         {
  70                 TestData
  71                                 .getInputMessages()
  72                                 .forEach(kv ->
  73                                 {
  74                                         try
  75                                         {
  76                                                 SendResult<TestWord, TestCounter> result = kafkaTemplate.send(TOPIC_IN, kv.key, kv.value).get();
  77                                                 log.info(
  78                                                                 "Sent: {}={}, partition={}, offset={}",
  79                                                                 result.getProducerRecord().key(),
  80                                                                 result.getProducerRecord().value(),
  81                                                                 result.getRecordMetadata().partition(),
  82                                                                 result.getRecordMetadata().offset());
  83                                         }
  84                                         catch (Exception e)
  85                                         {
  86                                                 throw new RuntimeException(e);
  87                                         }
  88                                 });
  89         }
  90
  91         @DisplayName("Await the expected state in the state-store")
  92         @Test
  93         public void testAwaitExpectedState()
  94         {
  95                 await("Expected state")
  96                                 .atMost(Duration.ofSeconds(5))
  97                                 .untilAsserted(() -> TestData.assertExpectedState(streamProcessor.getStore()));
  98         }
  99
 100         @DisplayName("Await the expected output messages")
 101         @Test
 102         @Disabled
 103         public void testAwaitExpectedMessages()
 104         {
 105                 await("Expected messages")
 106                                 .atMost(Duration.ofSeconds(5))
 107                                 .untilAsserted(() -> consumer.enforceAssertion(
 108                                                 receivedMessages -> TestData.assertExpectedMessages(receivedMessages)));
 109         }
 110
 111         @DisplayName("Await the expected number of messages")
 112         @Test
 113         public void testAwaitExpectedNumberOfMessagesForUsers()
 114         {
 115                 await("Expected number of messages")
 116                                 .atMost(Duration.ofSeconds(5))
 117                                 .untilAsserted(() -> consumer.enforceAssertion(
 118                                                 receivedMessages -> TestData.assertExpectedNumberOfMessagesForUsers(receivedMessages)));
 119         }
 120
 121         @DisplayName("Await the expected final output messages")
 122         @Test
 123         public void testAwaitExpectedLastMessagesForUsers()
 124         {
 125                 await("Expected final output messages")
 126                                 .atMost(Duration.ofSeconds(5))
 127                                 .untilAsserted(() -> consumer.enforceAssertion(
 128                                                 receivedMessages -> TestData.assertExpectedLastMessagesForUsers(receivedMessages)));
 129         }
 130
 131
 132         static class Consumer
 133         {
 134                 private final MultiValueMap<TestUser, TestRanking> received = new LinkedMultiValueMap<>();
 135
 136                 @KafkaListener(groupId = "TEST", topics = TOPIC_OUT)
 137                 public synchronized void receive(
 138                                 @Header(KafkaHeaders.RECEIVED_KEY) TestUser user,
 139                                 @Payload TestRanking ranking)
 140                 {
 141                         log.debug("Received message: {} -> {}", user, ranking);
 142                         received.add(user, ranking);
 143                 }
 144
 145                 synchronized void enforceAssertion(
 146                                 java.util.function.Consumer<MultiValueMap<TestUser, TestRanking>> assertion)
 147                 {
 148                         assertion.accept(received);
 149                 }
 150         }
 151
 152         @TestConfiguration
 153         static class Configuration
 154         {
 155                 @Bean
 156                 Consumer consumer()
 157                 {
 158                         return new Consumer();
 159                 }
 160
 161                 @Primary
 162                 @Bean
 163                 KeyValueBytesStoreSupplier inMemoryStoreSupplier()
 164                 {
 165                         return Stores.inMemoryKeyValueStore(STORE_NAME);
 166                 }
 167         }
 168 }