package de.juplo.kafka.wordcount.splitter;
import de.juplo.kafka.wordcount.counter.TestWord;
-import lombok.extern.slf4j.Slf4j;
+import de.juplo.kafka.wordcount.recorder.TestRecording;
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.time.Duration;
-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";
+ static final String PETER = "peter";
+ static final String KLAUS = "klaus";
- @Autowired
- KafkaTemplate<String, Recording> kafkaTemplate;
- @Autowired
- Consumer consumer;
-
- @BeforeEach
- public void clear()
- {
- consumer.received.clear();
- }
-
- static void writeInputData(BiConsumer<String, Recording> consumer)
+ static final KeyValue<String, TestRecording>[] INPUT_MESSAGES = new KeyValue[]
{
- Recording recording;
-
- recording = new Recording();
- recording.setUser("peter");
- recording.setSentence("Hallo Welt!");
- consumer.accept(recording.getUser(), recording);
-
- recording = new Recording();
- recording.setUser("klaus");
- recording.setSentence("Müsch gäb's auch!");
- consumer.accept(recording.getUser(), recording);
-
- recording = new Recording();
- recording.setUser("peter");
- recording.setSentence("Boäh, echt! ß mal nä Nümmäh!");
- 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()));
- }
-
+ new KeyValue<>(
+ PETER,
+ TestRecording.of(PETER, "Hallo Welt!")),
+ new KeyValue<>(
+ KLAUS,
+ TestRecording.of(KLAUS, "Müsch gäb's auch!")),
+ new KeyValue<>(
+ PETER,
+ TestRecording.of(PETER, "Boäh, echt! ß mal nä Nümmäh!")),
+ };
static void assertExpectedMessages(MultiValueMap<String, TestWord> receivedMessages)
{
- MultiValueMap<String, TestWord> expected = new LinkedMultiValueMap<>();
- expectedMessages.forEach(keyValue -> expected.add(keyValue.key, keyValue.value));
await("Received expected messages")
.atMost(Duration.ofSeconds(5))
- .untilAsserted(() -> expected.forEach((user, word) ->
+ .untilAsserted(() -> expectedMessages().forEach((user, word) ->
assertThat(receivedMessages.get(user)).containsExactlyElementsOf(word)));
}
- static Stream<KeyValue<String, TestWord>> expectedMessages = Stream.of(
+ static final KeyValue<String, TestWord>[] EXPECTED_MESSAGES = new KeyValue[]
+ {
KeyValue.pair(
"peter",
- new TestWord("peter", "Hallo")),
+ TestWord.of("peter", "Hallo")),
KeyValue.pair(
"peter",
- new TestWord("peter", "Welt")),
+ TestWord.of("peter", "Welt")),
KeyValue.pair(
"klaus",
- new TestWord("klaus", "Müsch")),
+ TestWord.of("klaus", "Müsch")),
KeyValue.pair(
"klaus",
- new TestWord("klaus", "gäb")),
+ TestWord.of("klaus", "gäb")),
KeyValue.pair(
"klaus",
- new TestWord("klaus", "s")),
+ TestWord.of("klaus", "s")),
KeyValue.pair(
"klaus",
- new TestWord("klaus", "auch")),
+ TestWord.of("klaus", "auch")),
KeyValue.pair(
"peter",
- new TestWord("peter", "Boäh")),
+ TestWord.of("peter", "Boäh")),
KeyValue.pair(
"peter",
- new TestWord("peter", "echt")),
+ TestWord.of("peter", "echt")),
KeyValue.pair(
"peter",
- new TestWord("peter", "ß")),
+ TestWord.of("peter", "ß")),
KeyValue.pair(
"peter",
- new TestWord("peter", "mal")),
+ TestWord.of("peter", "mal")),
KeyValue.pair(
"peter",
- new TestWord("peter", "nä")),
+ TestWord.of("peter", "nä")),
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;
- }
- }
-
+ TestWord.of("peter", "Nümmäh")),
+ };
- @TestConfiguration
- static class Configuration
+ static MultiValueMap<String, TestWord> expectedMessages()
{
- @Bean
- Consumer consumer()
- {
- return new Consumer();
- }
+ MultiValueMap<String, TestWord> expectedMessages = new LinkedMultiValueMap<>();
+ Stream
+ .of(EXPECTED_MESSAGES)
+ .forEach(keyValue -> expectedMessages.add(keyValue.key, keyValue.value));
+ return expectedMessages;
}
}
projects / demos / kafka / wordcount / blobdiff