1 package de.juplo.kafka;
3 import lombok.extern.slf4j.Slf4j;
4 import org.assertj.core.api.Assertions;
5 import org.junit.jupiter.api.*;
6 import org.junit.jupiter.api.extension.ExtendWith;
7 import org.springframework.beans.factory.annotation.Value;
8 import org.springframework.kafka.test.context.EmbeddedKafka;
9 import org.springframework.test.context.junit.jupiter.SpringExtension;
11 import java.time.Duration;
12 import java.util.concurrent.CompletableFuture;
14 import static de.juplo.kafka.ApplicationTests.PARTITIONS;
15 import static de.juplo.kafka.ApplicationTests.TOPIC;
16 import static org.awaitility.Awaitility.*;
19 @ExtendWith(SpringExtension.class)
22 partitions = PARTITIONS,
24 "transaction.state.log.replication.factor=1",
25 "transaction.state.log.min.isr=1" })
27 public class ApplicationTests
29 static final String TOPIC = "FOO";
30 static final int PARTITIONS = 10;
32 @Value("${spring.embedded.kafka.brokers}")
33 String bootstrapServers;
36 void testConcurrentProducers() throws Exception
38 SimpleProducer instanceA = new SimpleProducer(
42 SimpleProducer instanceB = new SimpleProducer(
48 CompletableFuture<Long> resultA1 = instanceA.send("a","message #1");
49 await("Sending of 1. message for A is completed")
50 .atMost(Duration.ofSeconds(5))
51 .until(() -> resultA1.isDone());
52 Assertions.assertThat(resultA1.get())
55 CompletableFuture<Long> resultB1 = instanceB.send("b","message #1");
56 await("Sending of 1. message for B is completed")
57 .atMost(Duration.ofSeconds(5))
58 .until(() -> resultB1.isDone());
60 CompletableFuture<Long> resultA2 = instanceA.send("a","message #2");
61 await("Sending of 2. message for A is completed")
62 .atMost(Duration.ofSeconds(5))
63 .until(() -> resultA2.isDone());
65 CompletableFuture<Long> resultB2 = instanceB.send("b","message #2");
66 await("Sending of 2. message for B is completed")
67 .atMost(Duration.ofSeconds(5))
68 .until(() -> resultB2.isDone());