juplo.de Git - demos/kafka/training/blob - src/test/java/de/juplo/kafka/ApplicationTests.java

   1 package de.juplo.kafka;
   2
   3 import lombok.extern.slf4j.Slf4j;
   4 import org.junit.jupiter.api.*;
   5 import org.junit.jupiter.api.extension.ExtendWith;
   6 import org.springframework.beans.factory.annotation.Value;
   7 import org.springframework.kafka.test.context.EmbeddedKafka;
   8 import org.springframework.test.context.junit.jupiter.SpringExtension;
   9
  10 import java.time.Duration;
  11 import java.util.concurrent.CompletableFuture;
  12
  13 import static de.juplo.kafka.ApplicationTests.PARTITIONS;
  14 import static de.juplo.kafka.ApplicationTests.TOPIC;
  15 import static org.awaitility.Awaitility.*;
  16
  17
  18 @ExtendWith(SpringExtension.class)
  19 @EmbeddedKafka(topics = TOPIC, partitions = PARTITIONS)
  20 @Slf4j
  21 public class ApplicationTests
  22 {
  23         static final String TOPIC = "FOO";
  24         static final int PARTITIONS = 10;
  25
  26   @Value("${spring.embedded.kafka.brokers}")
  27   String bootstrapServers;
  28
  29         @Test
  30         void testConcurrentProducers() throws Exception
  31         {
  32     SimpleProducer instanceA = new SimpleProducer(
  33       bootstrapServers,
  34       TOPIC,
  35       "A");
  36     SimpleProducer instanceB = new SimpleProducer(
  37       bootstrapServers,
  38       TOPIC,
  39       "B");
  40
  41     CompletableFuture<Long> result;
  42
  43     result = instanceA.send("a","message #1");
  44                 await("Sending of 1. message for A is completed")
  45                                 .atMost(Duration.ofSeconds(5))
  46                                 .until(() -> result.isDone());
  47         }
  48 }