splitter: 1.2.0 - Separated test-data in class `TestData` -- COPY

diff --git a/src/test/java/de/juplo/kafka/wordcount/splitter/TestData.java b/src/test/java/de/juplo/kafka/wordcount/splitter/TestData.java
new file mode 100644 (file)
index 0000000..d1bbc0f
--- /dev/null
+++ b/src/test/java/de/juplo/kafka/wordcount/splitter/TestData.java
@@ -0,0 +1,172 @@
+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.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 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;
+
+               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()));
+       }
+
+
+       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) ->
+                                               assertThat(receivedMessages.get(user)).containsExactlyElementsOf(word)));
+       }
+
+       static Stream<KeyValue<String, TestWord>> expectedMessages = Stream.of(
+                       KeyValue.pair(
+                                       "peter",
+                                       new TestWord("peter", "Hallo")),
+                       KeyValue.pair(
+                                       "peter",
+                                       new TestWord("peter", "Welt")),
+                       KeyValue.pair(
+                                       "klaus",
+                                       new TestWord("klaus", "Müsch")),
+                       KeyValue.pair(
+                                       "klaus",
+                                       new TestWord("klaus", "gäb")),
+                       KeyValue.pair(
+                                       "klaus",
+                                       new TestWord("klaus", "s")),
+                       KeyValue.pair(
+                                       "klaus",
+                                       new TestWord("klaus", "auch")),
+                       KeyValue.pair(
+                                       "peter",
+                                       new TestWord("peter", "Boäh")),
+                       KeyValue.pair(
+                                       "peter",
+                                       new TestWord("peter", "echt")),
+                       KeyValue.pair(
+                                       "peter",
+                                       new TestWord("peter", "ß")),
+                       KeyValue.pair(
+                                       "peter",
+                                       new TestWord("peter", "mal")),
+                       KeyValue.pair(
+                                       "peter",
+                                       new TestWord("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;
+               }
+       }
+
+
+       @TestConfiguration
+       static class Configuration
+       {
+               @Bean
+               Consumer consumer()
+               {
+                       return new Consumer();
+               }
+       }
+}