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.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 import java.util.stream.Stream;
  24
  25 import static de.juplo.kafka.wordcount.splitter.SplitterApplicationIT.TOPIC_IN;
  26 import static de.juplo.kafka.wordcount.splitter.SplitterApplicationIT.TOPIC_OUT;
  27 import static org.awaitility.Awaitility.await;
  28
  29
  30 @SpringBootTest(
  31                 properties = {
  32                                 "spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer",
  33                                 "spring.kafka.producer.properties.spring.json.add.type.headers=false",
  34                                 "spring.kafka.consumer.auto-offset-reset=earliest",
  35                                 "spring.kafka.consumer.value-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer",
  36                                 "spring.kafka.consumer.properties.spring.json.value.default.type=de.juplo.kafka.wordcount.counter.TestWord",
  37                                 "spring.kafka.consumer.properties.spring.json.trusted.packages=de.juplo.kafka.wordcount.splitter",
  38                                 "logging.level.root=WARN",
  39                                 "logging.level.de.juplo=DEBUG",
  40                                 "juplo.wordcount.splitter.bootstrap-server=${spring.embedded.kafka.brokers}",
  41                                 "juplo.wordcount.splitter.input-topic=" + TOPIC_IN,
  42                                 "juplo.wordcount.splitter.output-topic=" + TOPIC_OUT })
  43 @EmbeddedKafka(topics = { TOPIC_IN, TOPIC_OUT })
  44 @Slf4j
  45 public class SplitterApplicationIT
  46 {
  47         public final static String TOPIC_IN = "in";
  48         public final static String TOPIC_OUT = "out";
  49
  50         @Autowired
  51         Consumer consumer;
  52
  53         @BeforeAll
  54         public static void testSendMessage(
  55                         @Autowired KafkaTemplate<String, TestRecording> kafkaTemplate)
  56         {
  57                 Stream
  58                                 .of(TestData.INPUT_MESSAGES)
  59                                 .forEach(kv ->
  60                                 {
  61                                         try
  62                                         {
  63                                                 SendResult<String, TestRecording> result = kafkaTemplate.send(TOPIC_IN, kv.key, kv.value).get();
  64                                                 log.info(
  65                                                                 "Sent: {}={}, partition={}, offset={}",
  66                                                                 result.getProducerRecord().key(),
  67                                                                 result.getProducerRecord().value(),
  68                                                                 result.getRecordMetadata().partition(),
  69                                                                 result.getRecordMetadata().offset());
  70                                         }
  71                                         catch (Exception e)
  72                                         {
  73                                                 throw new RuntimeException(e);
  74                                         }
  75                                 });
  76         }
  77
  78
  79         @Test
  80         void testSendMessage() throws Exception
  81         {
  82                 await("Expexted converted data")
  83                                 .atMost(Duration.ofSeconds(5))
  84                                 .untilAsserted(() ->
  85                                                 TestData.assertExpectedMessages(consumer.getReceivedMessages()));
  86         }
  87
  88
  89         static class Consumer
  90         {
  91                 private final MultiValueMap<String, TestWord> received = new LinkedMultiValueMap<>();
  92
  93                 @KafkaListener(groupId = "TEST", topics = TOPIC_OUT)
  94                 public synchronized void receive(
  95                                 @Header(KafkaHeaders.RECEIVED_KEY) String key,
  96                                 @Payload TestWord value)
  97                 {
  98                         log.debug("Received message: {}={}", key, value);
  99                         received.add(key, value);
 100                 }
 101
 102                 synchronized MultiValueMap<String, TestWord> getReceivedMessages()
 103                 {
 104                         return received;
 105                 }
 106         }
 107
 108
 109         @TestConfiguration
 110         static class Configuration
 111         {
 112                 @Bean
 113                 Consumer consumer()
 114                 {
 115                         return new Consumer();
 116                 }
 117         }
 118 }