From: Kai Moritz <kai@juplo.de>
Date: Sun, 26 May 2024 10:57:51 +0000 (+0200)
Subject: splitter: 1.2.0 - Refined `SplitterApplicationIT`
X-Git-Tag: splitter-1.2.0~13
X-Git-Url: https://juplo.de/gitweb/?a=commitdiff_plain;h=72872effdc38ff886532c895a1a4ae1a8e6aa95c;p=demos%2Fkafka%2Fwordcount
splitter: 1.2.0 - Refined `SplitterApplicationIT`
---
diff --git a/src/test/java/de/juplo/kafka/wordcount/counter/TestWord.java b/src/test/java/de/juplo/kafka/wordcount/counter/TestWord.java
new file mode 100644
index 0000000..f2c2447
--- /dev/null
+++ b/src/test/java/de/juplo/kafka/wordcount/counter/TestWord.java
@@ -0,0 +1,15 @@
+package de.juplo.kafka.wordcount.counter;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class TestWord
+{
+ String user;
+ String word;
+}
diff --git a/src/test/java/de/juplo/kafka/wordcount/splitter/SplitterApplicationIT.java b/src/test/java/de/juplo/kafka/wordcount/splitter/SplitterApplicationIT.java
index 92dfd10..d1bbc0f 100644
--- a/src/test/java/de/juplo/kafka/wordcount/splitter/SplitterApplicationIT.java
+++ b/src/test/java/de/juplo/kafka/wordcount/splitter/SplitterApplicationIT.java
@@ -1,8 +1,8 @@
package de.juplo.kafka.wordcount.splitter;
-import com.fasterxml.jackson.databind.ObjectMapper;
+import de.juplo.kafka.wordcount.counter.TestWord;
import lombok.extern.slf4j.Slf4j;
-import org.apache.kafka.clients.consumer.ConsumerRecord;
+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;
@@ -11,35 +11,44 @@ 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.*;
+import static org.awaitility.Awaitility.await;
@SpringBootTest(
properties = {
- "spring.kafka.bootstrap-servers=${spring.embedded.kafka.brokers}",
+ "spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer",
+ "spring.kafka.producer.properties.spring.json.add.type.headers=false",
+ "spring.kafka.consumer.auto-offset-reset=earliest",
+ "spring.kafka.consumer.value-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer",
+ "spring.kafka.consumer.properties.spring.json.value.default.type=de.juplo.kafka.wordcount.counter.TestWord",
+ "spring.kafka.consumer.properties.spring.json.trusted.packages=de.juplo.kafka.wordcount.splitter",
+ "logging.level.root=WARN",
+ "logging.level.de.juplo=DEBUG",
"juplo.wordcount.splitter.bootstrap-server=${spring.embedded.kafka.brokers}",
"juplo.wordcount.splitter.input-topic=" + TOPIC_IN,
"juplo.wordcount.splitter.output-topic=" + TOPIC_OUT })
-@EmbeddedKafka(topics = { TOPIC_IN, TOPIC_OUT }, partitions = PARTITIONS)
+@EmbeddedKafka(topics = { TOPIC_IN, TOPIC_OUT })
@Slf4j
public class SplitterApplicationIT
{
public final static String TOPIC_IN = "in";
public final static String TOPIC_OUT = "out";
- static final int PARTITIONS = 2;
@Autowired
- KafkaTemplate<String, String> kafkaTemplate;
- @Autowired
- ObjectMapper mapper;
+ KafkaTemplate<String, Recording> kafkaTemplate;
@Autowired
Consumer consumer;
@@ -50,58 +59,107 @@ public class SplitterApplicationIT
consumer.received.clear();
}
-
- @Test
- void testSendMessage() throws Exception
+ static void writeInputData(BiConsumer<String, Recording> consumer)
{
- Recording recording = new Recording();
+ Recording recording;
+
+ recording = new Recording();
recording.setUser("peter");
recording.setSentence("Hallo Welt!");
- kafkaTemplate.send(TOPIC_IN, recording.getUser(), mapper.writeValueAsString(recording));
+ consumer.accept(recording.getUser(), recording);
+
+ recording = new Recording();
recording.setUser("klaus");
recording.setSentence("Müsch gäb's auch!");
- kafkaTemplate.send(TOPIC_IN, recording.getUser(), mapper.writeValueAsString(recording));
+ consumer.accept(recording.getUser(), recording);
+
+ recording = new Recording();
recording.setUser("peter");
recording.setSentence("Boäh, echt! à mal nä Nümmäh!");
- kafkaTemplate.send(TOPIC_IN, recording.getUser(), mapper.writeValueAsString(recording));
-
- String peter1 = mapper.writeValueAsString(Word.of("peter", "Hallo"));
- String peter2 = mapper.writeValueAsString(Word.of("peter", "Welt"));
- String peter3 = mapper.writeValueAsString(Word.of("peter", "Boäh"));
- String peter4 = mapper.writeValueAsString(Word.of("peter", "echt"));
- String peter5 = mapper.writeValueAsString(Word.of("peter", "Ã"));
- String peter6 = mapper.writeValueAsString(Word.of("peter", "mal"));
- String peter7 = mapper.writeValueAsString(Word.of("peter", "nä"));
- String peter8 = mapper.writeValueAsString(Word.of("peter", "Nümmäh"));
-
- String klaus1 = mapper.writeValueAsString(Word.of("klaus","Müsch"));
- String klaus2 = mapper.writeValueAsString(Word.of("klaus","gäb"));
- String klaus3 = mapper.writeValueAsString(Word.of("klaus","s"));
- String klaus4 = mapper.writeValueAsString(Word.of("klaus","auch"));
+ 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(() ->
- {
- assertThat(consumer.received).hasSize(2);
- assertThat(consumer.received.get("klaus")).containsExactly(klaus1, klaus2, klaus3, klaus4);
- assertThat(consumer.received.get("peter")).containsExactly(peter1, peter2, peter3, peter4, peter5, peter6, peter7, peter8);
- });
+ 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", "Ã")),
+ KeyValue.pair(
+ "peter",
+ new TestWord("peter", "mal")),
+ KeyValue.pair(
+ "peter",
+ new TestWord("peter", "nä")),
+ KeyValue.pair(
+ "peter",
+ new TestWord("peter", "Nümmäh")));
+
static class Consumer
{
- final MultiValueMap<String, String> received = new LinkedMultiValueMap<>();
+ private final MultiValueMap<String, TestWord> received = new LinkedMultiValueMap<>();
@KafkaListener(groupId = "TEST", topics = TOPIC_OUT)
- public void receive(ConsumerRecord<String, String> record)
+ public synchronized void receive(
+ @Header(KafkaHeaders.RECEIVED_KEY) String key,
+ @Payload TestWord value)
{
- log.debug("Received message: {}", record);
- received.add(record.key(), record.value());
+ log.debug("Received message: {}={}", key, value);
+ received.add(key, value);
+ }
+
+ synchronized MultiValueMap<String, TestWord> getReceivedMessages()
+ {
+ return received;
}
}
+
@TestConfiguration
static class Configuration
{