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.TestOutputWord;
   4 import de.juplo.kafka.wordcount.recorder.TestInputRecording;
   5 import lombok.extern.slf4j.Slf4j;
   6 import org.junit.jupiter.api.BeforeAll;
   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.support.SendResult;
  16 import org.springframework.kafka.test.context.EmbeddedKafka;
  17 import org.springframework.messaging.handler.annotation.Header;
  18 import org.springframework.messaging.handler.annotation.Payload;
  19 import org.springframework.util.LinkedMultiValueMap;
  20 import org.springframework.util.MultiValueMap;
  21
  22 import java.time.Duration;
  23
  24 import static de.juplo.kafka.wordcount.splitter.SplitterApplicationIT.TOPIC_IN;
  25 import static de.juplo.kafka.wordcount.splitter.SplitterApplicationIT.TOPIC_OUT;
  26 import static org.awaitility.Awaitility.await;
  27
  28
  29 @SpringBootTest(
  30                 properties = {
  31                                 "spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer",
  32                                 "spring.kafka.producer.properties.spring.json.add.type.headers=false",
  33                                 "spring.kafka.consumer.auto-offset-reset=earliest",
  34                                 "spring.kafka.consumer.value-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer",
  35                                 "spring.kafka.consumer.properties.spring.json.value.default.type=de.juplo.kafka.wordcount.counter.TestWord",
  36                                 "spring.kafka.consumer.properties.spring.json.trusted.packages=de.juplo.kafka.wordcount.splitter",
  37                                 "logging.level.root=WARN",
  38                                 "logging.level.de.juplo=DEBUG",
  39                                 "juplo.wordcount.splitter.bootstrap-server=${spring.embedded.kafka.brokers}",
  40                                 "juplo.wordcount.splitter.input-topic=" + TOPIC_IN,
  41                                 "juplo.wordcount.splitter.output-topic=" + TOPIC_OUT })
  42 @EmbeddedKafka(topics = { TOPIC_IN, TOPIC_OUT })
  43 @Slf4j
  44 public class SplitterApplicationIT
  45 {
  46         public final static String TOPIC_IN = "in";
  47         public final static String TOPIC_OUT = "out";
  48
  49         @Autowired
  50         Consumer consumer;
  51
  52         @BeforeAll
  53         public static void testSendMessage(
  54                         @Autowired KafkaTemplate<String, TestInputRecording> kafkaTemplate)
  55         {
  56                 TestData
  57                                 .getInputMessages()
  58                                 .forEach(kv ->
  59                                 {
  60                                         try
  61                                         {
  62                                                 SendResult<String, TestInputRecording> result = kafkaTemplate.send(TOPIC_IN, kv.key, kv.value).get();
  63                                                 log.info(
  64                                                                 "Sent: {}={}, partition={}, offset={}",
  65                                                                 result.getProducerRecord().key(),
  66                                                                 result.getProducerRecord().value(),
  67                                                                 result.getRecordMetadata().partition(),
  68                                                                 result.getRecordMetadata().offset());
  69                                         }
  70                                         catch (Exception e)
  71                                         {
  72                                                 throw new RuntimeException(e);
  73                                         }
  74                                 });
  75         }
  76
  77
  78         @Test
  79         void testSendMessage() throws Exception
  80         {
  81                 await("Expexted converted data")
  82                                 .atMost(Duration.ofSeconds(5))
  83                                 .untilAsserted(() ->
  84                                                 TestData.assertExpectedMessages(consumer.getReceivedMessages()));
  85         }
  86
  87
  88         static class Consumer
  89         {
  90                 private final MultiValueMap<String, TestOutputWord> received = new LinkedMultiValueMap<>();
  91
  92                 @KafkaListener(groupId = "TEST", topics = TOPIC_OUT)
  93                 public synchronized void receive(
  94                                 @Header(KafkaHeaders.RECEIVED_KEY) String key,
  95                                 @Payload TestOutputWord value)
  96                 {
  97                         log.debug("Received message: {}={}", key, value);
  98                         received.add(key, value);
  99                 }
 100
 101                 synchronized MultiValueMap<String, TestOutputWord> getReceivedMessages()
 102                 {
 103                         return received;
 104                 }
 105         }
 106
 107
 108         @TestConfiguration
 109         static class Configuration
 110         {
 111                 @Bean
 112                 Consumer consumer()
 113                 {
 114                         return new Consumer();
 115                 }
 116         }
 117 }