juplo.de Git - demos/kafka/wordcount/blob - src/test/java/de/juplo/kafka/wordcount/query/QueryApplicationIT.java

   1 package de.juplo.kafka.wordcount.query;
   2
   3 import lombok.extern.slf4j.Slf4j;
   4 import org.apache.kafka.streams.state.KeyValueBytesStoreSupplier;
   5 import org.apache.kafka.streams.state.Stores;
   6 import org.junit.jupiter.api.BeforeAll;
   7 import org.junit.jupiter.api.DisplayName;
   8 import org.junit.jupiter.api.Test;
   9 import org.springframework.beans.factory.annotation.Autowired;
  10 import org.springframework.boot.test.context.SpringBootTest;
  11 import org.springframework.boot.test.context.TestConfiguration;
  12 import org.springframework.context.annotation.Bean;
  13 import org.springframework.context.annotation.Primary;
  14 import org.springframework.kafka.core.KafkaTemplate;
  15 import org.springframework.kafka.support.SendResult;
  16 import org.springframework.kafka.test.context.EmbeddedKafka;
  17
  18 import java.time.Duration;
  19 import java.util.concurrent.CompletableFuture;
  20
  21 import static de.juplo.kafka.wordcount.query.QueryStreamProcessor.STORE_NAME;
  22 import static org.awaitility.Awaitility.await;
  23
  24
  25 @SpringBootTest(
  26                 properties = {
  27                                 "spring.kafka.producer.key-serializer=org.apache.kafka.common.serialization.StringSerializer",
  28                                 "spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer",
  29                                 "spring.kafka.producer.properties.spring.json.add.type.headers=false",
  30                                 "logging.level.root=WARN",
  31                                 "logging.level.de.juplo=DEBUG",
  32                                 "logging.level.org.apache.kafka.clients=INFO",
  33                                 "logging.level.org.apache.kafka.streams=INFO",
  34                                 "juplo.wordcount.query.bootstrap-server=${spring.embedded.kafka.brokers}",
  35                                 "juplo.wordcount.query.users-input-topic=" + QueryApplicationIT.TOPIC_USERS,
  36                                 "juplo.wordcount.query.ranking-input-topic=" + QueryApplicationIT.TOPIC_TOP10 })
  37 @EmbeddedKafka(topics = { QueryApplicationIT.TOPIC_TOP10, QueryApplicationIT.TOPIC_USERS})
  38 @Slf4j
  39 public class QueryApplicationIT
  40 {
  41         public static final String TOPIC_TOP10 = "top10";
  42         public static final String TOPIC_USERS = "users";
  43
  44         @Autowired
  45         QueryStreamProcessor streamProcessor;
  46
  47
  48         @BeforeAll
  49         public static void testSendMessage(
  50                         @Autowired KafkaTemplate<String, Object> kafkaTemplate)
  51         {
  52                 TestData
  53                                 .getUsersMessages()
  54                                 .forEach(kv -> flush(kafkaTemplate.send(TOPIC_USERS, kv.key, kv.value)));
  55                 TestData
  56                                 .getTop10Messages()
  57                                 .forEach(kv -> flush(kafkaTemplate.send(TOPIC_TOP10, kv.key, kv.value)));
  58         }
  59
  60         private static void flush(CompletableFuture<SendResult<String, Object>> future)
  61         {
  62                 try
  63                 {
  64                         SendResult<String, Object> result = future.get();
  65                         log.info(
  66                                         "Sent: {}={}, partition={}, offset={}",
  67                                         result.getProducerRecord().key(),
  68                                         result.getProducerRecord().value(),
  69                                         result.getRecordMetadata().partition(),
  70                                         result.getRecordMetadata().offset());
  71                 }
  72                 catch (Exception e)
  73                 {
  74                         throw new RuntimeException(e);
  75                 }
  76         }
  77
  78         @DisplayName("Await the expected state in the state-store")
  79         @Test
  80         public void testAwaitExpectedState()
  81         {
  82                 await("Expected state")
  83                                 .atMost(Duration.ofSeconds(5))
  84                                 .catchUncaughtExceptions()
  85                                 .untilAsserted(() -> TestData.assertExpectedState(streamProcessor.getStore()));
  86         }
  87
  88         @TestConfiguration
  89         static class Configuration
  90         {
  91                 @Primary
  92                 @Bean
  93                 KeyValueBytesStoreSupplier inMemoryStoreSupplier()
  94                 {
  95                         return Stores.inMemoryKeyValueStore(STORE_NAME);
  96                 }
  97         }
  98 }