package de.juplo.kafka.wordcount.splitter;
import de.juplo.kafka.wordcount.counter.TestWord;
-import lombok.extern.slf4j.Slf4j;
import org.apache.kafka.streams.KeyValue;
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Test;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.boot.test.context.TestConfiguration;
-import org.springframework.context.annotation.Bean;
-import org.springframework.kafka.annotation.KafkaListener;
-import org.springframework.kafka.core.KafkaTemplate;
-import org.springframework.kafka.support.KafkaHeaders;
-import org.springframework.kafka.test.context.EmbeddedKafka;
-import org.springframework.messaging.handler.annotation.Header;
-import org.springframework.messaging.handler.annotation.Payload;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
import java.util.function.BiConsumer;
import java.util.stream.Stream;
-import static de.juplo.kafka.wordcount.splitter.SplitterApplicationIT.*;
import static org.assertj.core.api.Assertions.assertThat;
import static org.awaitility.Awaitility.await;
-@SpringBootTest(
- properties = {
- "spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer",
- "spring.kafka.producer.properties.spring.json.add.type.headers=false",
- "spring.kafka.consumer.auto-offset-reset=earliest",
- "spring.kafka.consumer.value-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer",
- "spring.kafka.consumer.properties.spring.json.value.default.type=de.juplo.kafka.wordcount.counter.TestWord",
- "spring.kafka.consumer.properties.spring.json.trusted.packages=de.juplo.kafka.wordcount.splitter",
- "logging.level.root=WARN",
- "logging.level.de.juplo=DEBUG",
- "juplo.wordcount.splitter.bootstrap-server=${spring.embedded.kafka.brokers}",
- "juplo.wordcount.splitter.input-topic=" + TOPIC_IN,
- "juplo.wordcount.splitter.output-topic=" + TOPIC_OUT })
-@EmbeddedKafka(topics = { TOPIC_IN, TOPIC_OUT })
-@Slf4j
-public class SplitterApplicationIT
+public class TestData
{
- public final static String TOPIC_IN = "in";
- public final static String TOPIC_OUT = "out";
-
- @Autowired
- KafkaTemplate<String, Recording> kafkaTemplate;
- @Autowired
- Consumer consumer;
-
-
- @BeforeEach
- public void clear()
- {
- consumer.received.clear();
- }
-
static void writeInputData(BiConsumer<String, Recording> consumer)
{
Recording recording;
consumer.accept(recording.getUser(), recording);
}
- @Test
- void testSendMessage() throws Exception
- {
- writeInputData((user, recording) -> kafkaTemplate.send(TOPIC_IN, user, recording));
-
- await("Expexted converted data")
- .atMost(Duration.ofSeconds(5))
- .untilAsserted(() ->
- assertExpectedMessages(consumer.getReceivedMessages()));
- }
-
-
static void assertExpectedMessages(MultiValueMap<String, TestWord> receivedMessages)
{
MultiValueMap<String, TestWord> expected = new LinkedMultiValueMap<>();
KeyValue.pair(
"peter",
new TestWord("peter", "Nümmäh")));
-
-
- static class Consumer
- {
- private final MultiValueMap<String, TestWord> received = new LinkedMultiValueMap<>();
-
- @KafkaListener(groupId = "TEST", topics = TOPIC_OUT)
- public synchronized void receive(
- @Header(KafkaHeaders.RECEIVED_KEY) String key,
- @Payload TestWord value)
- {
- log.debug("Received message: {}={}", key, value);
- received.add(key, value);
- }
-
- synchronized MultiValueMap<String, TestWord> getReceivedMessages()
- {
- return received;
- }
- }
-
-
- @TestConfiguration
- static class Configuration
- {
- @Bean
- Consumer consumer()
- {
- return new Consumer();
- }
- }
}