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 de.juplo.kafka.wordcount.recorder.TestRecording;
   5 import lombok.extern.slf4j.Slf4j;
   6 import org.junit.jupiter.api.BeforeEach;
   7 import org.junit.jupiter.api.Test;
   8 import org.springframework.beans.factory.annotation.Autowired;
   9 import org.springframework.boot.test.context.SpringBootTest;
  10 import org.springframework.boot.test.context.TestConfiguration;
  11 import org.springframework.context.annotation.Bean;
  12 import org.springframework.kafka.annotation.KafkaListener;
  13 import org.springframework.kafka.core.KafkaTemplate;
  14 import org.springframework.kafka.support.KafkaHeaders;
  15 import org.springframework.kafka.test.context.EmbeddedKafka;
  16 import org.springframework.messaging.handler.annotation.Header;
  17 import org.springframework.messaging.handler.annotation.Payload;
  18 import org.springframework.util.LinkedMultiValueMap;
  19 import org.springframework.util.MultiValueMap;
  20
  21 import java.time.Duration;
  22
  23 import static de.juplo.kafka.wordcount.splitter.SplitterApplicationIT.*;
  24 import static org.awaitility.Awaitility.await;
  25
  26
  27 @SpringBootTest(
  28                 properties = {
  29                                 "spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer",
  30                                 "spring.kafka.producer.properties.spring.json.add.type.headers=false",
  31                                 "spring.kafka.consumer.auto-offset-reset=earliest",
  32                                 "spring.kafka.consumer.value-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer",
  33                                 "spring.kafka.consumer.properties.spring.json.value.default.type=de.juplo.kafka.wordcount.counter.TestWord",
  34                                 "spring.kafka.consumer.properties.spring.json.trusted.packages=de.juplo.kafka.wordcount.splitter",
  35                                 "logging.level.root=WARN",
  36                                 "logging.level.de.juplo=DEBUG",
  37                                 "juplo.wordcount.splitter.bootstrap-server=${spring.embedded.kafka.brokers}",
  38                                 "juplo.wordcount.splitter.input-topic=" + TOPIC_IN,
  39                                 "juplo.wordcount.splitter.output-topic=" + TOPIC_OUT })
  40 @EmbeddedKafka(topics = { TOPIC_IN, TOPIC_OUT })
  41 @Slf4j
  42 public class SplitterApplicationIT
  43 {
  44         public final static String TOPIC_IN = "in";
  45         public final static String TOPIC_OUT = "out";
  46
  47         @Autowired
  48         KafkaTemplate<String, TestRecording> kafkaTemplate;
  49         @Autowired
  50         Consumer consumer;
  51
  52
  53         @BeforeEach
  54         public void clear()
  55         {
  56                 consumer.received.clear();
  57         }
  58
  59         @Test
  60         void testSendMessage() throws Exception
  61         {
  62                 TestData.writeInputData((user, recording) -> kafkaTemplate.send(TOPIC_IN, user, recording));
  63
  64                 await("Expexted converted data")
  65                                 .atMost(Duration.ofSeconds(5))
  66                                 .untilAsserted(() ->
  67                                                 TestData.assertExpectedMessages(consumer.getReceivedMessages()));
  68         }
  69
  70
  71         static class Consumer
  72         {
  73                 private final MultiValueMap<String, TestWord> received = new LinkedMultiValueMap<>();
  74
  75                 @KafkaListener(groupId = "TEST", topics = TOPIC_OUT)
  76                 public synchronized void receive(
  77                                 @Header(KafkaHeaders.RECEIVED_KEY) String key,
  78                                 @Payload TestWord value)
  79                 {
  80                         log.debug("Received message: {}={}", key, value);
  81                         received.add(key, value);
  82                 }
  83
  84                 synchronized MultiValueMap<String, TestWord> getReceivedMessages()
  85                 {
  86                         return received;
  87                 }
  88         }
  89
  90
  91         @TestConfiguration
  92         static class Configuration
  93         {
  94                 @Bean
  95                 Consumer consumer()
  96                 {
  97                         return new Consumer();
  98                 }
  99         }
 100 }