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.TestOutputUser;
   4 import de.juplo.kafka.wordcount.counter.TestOutputWord;
   5 import de.juplo.kafka.wordcount.recorder.TestInputRecording;
   6 import de.juplo.kafka.wordcount.recorder.TestInputUser;
   7 import lombok.extern.slf4j.Slf4j;
   8 import org.junit.jupiter.api.BeforeAll;
   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
  26 import static de.juplo.kafka.wordcount.splitter.SplitterApplicationIT.TOPIC_IN;
  27 import static de.juplo.kafka.wordcount.splitter.SplitterApplicationIT.TOPIC_OUT;
  28 import static org.awaitility.Awaitility.await;
  29
  30
  31 @SpringBootTest(
  32                 properties = {
  33                                 "spring.kafka.producer.key-serializer=org.springframework.kafka.support.serializer.JsonSerializer",
  34                                 "spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer",
  35                                 "spring.kafka.producer.properties.spring.json.add.type.headers=false",
  36                                 "spring.kafka.consumer.auto-offset-reset=earliest",
  37                                 "spring.kafka.consumer.key-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer",
  38                                 "spring.kafka.consumer.value-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer",
  39                                 "spring.kafka.consumer.properties.spring.json.key.default.type=de.juplo.kafka.wordcount.counter.TestOutputUser",
  40                                 "spring.kafka.consumer.properties.spring.json.value.default.type=de.juplo.kafka.wordcount.counter.TestOutputWord",
  41                                 "logging.level.root=WARN",
  42                                 "logging.level.de.juplo=DEBUG",
  43                                 "juplo.wordcount.splitter.bootstrap-server=${spring.embedded.kafka.brokers}",
  44                                 "juplo.wordcount.splitter.input-topic=" + TOPIC_IN,
  45                                 "juplo.wordcount.splitter.output-topic=" + TOPIC_OUT })
  46 @EmbeddedKafka(topics = { TOPIC_IN, TOPIC_OUT })
  47 @Slf4j
  48 public class SplitterApplicationIT
  49 {
  50         public final static String TOPIC_IN = "in";
  51         public final static String TOPIC_OUT = "out";
  52
  53         @Autowired
  54         Consumer consumer;
  55
  56         @BeforeAll
  57         public static void testSendMessage(
  58                         @Autowired KafkaTemplate<TestInputUser, TestInputRecording> kafkaTemplate)
  59         {
  60                 TestData
  61                                 .getInputMessages()
  62                                 .forEach(kv ->
  63                                 {
  64                                         try
  65                                         {
  66                                                 SendResult<TestInputUser, TestInputRecording> result = kafkaTemplate.send(TOPIC_IN, kv.key, kv.value).get();
  67                                                 log.info(
  68                                                                 "Sent: {}={}, partition={}, offset={}",
  69                                                                 result.getProducerRecord().key(),
  70                                                                 result.getProducerRecord().value(),
  71                                                                 result.getRecordMetadata().partition(),
  72                                                                 result.getRecordMetadata().offset());
  73                                         }
  74                                         catch (Exception e)
  75                                         {
  76                                                 throw new RuntimeException(e);
  77                                         }
  78                                 });
  79         }
  80
  81
  82         @Test
  83         void testSendMessage() throws Exception
  84         {
  85                 await("Expected converted data")
  86                                 .atMost(Duration.ofSeconds(5))
  87                                 .untilAsserted(() ->
  88                                                 TestData.assertExpectedMessages(consumer.getReceivedMessages()));
  89         }
  90
  91
  92         static class Consumer
  93         {
  94                 private final MultiValueMap<TestOutputUser, TestOutputWord> received = new LinkedMultiValueMap<>();
  95
  96                 @KafkaListener(groupId = "TEST", topics = TOPIC_OUT)
  97                 public synchronized void receive(
  98                                 @Header(KafkaHeaders.RECEIVED_KEY) TestOutputUser key,
  99                                 @Payload TestOutputWord value)
 100                 {
 101                         log.debug("Received message: {}={}", key, value);
 102                         received.add(key, value);
 103                 }
 104
 105                 synchronized MultiValueMap<TestOutputUser, TestOutputWord> getReceivedMessages()
 106                 {
 107                         return received;
 108                 }
 109         }
 110
 111
 112         @TestConfiguration
 113         static class Configuration
 114         {
 115                 @Bean
 116                 Consumer consumer()
 117                 {
 118                         return new Consumer();
 119                 }
 120         }
 121 }