From: Kai Moritz <kai@juplo.de>
Date: Sun, 5 Feb 2023 10:47:56 +0000 (+0100)
Subject: splitter: 1.1.3 - Refined test & fixed a bug in the splitting-pattern
X-Git-Url: https://juplo.de/gitweb/?p=demos%2Fkafka%2Fwordcount;a=commitdiff_plain;h=520528638e7487c845d7fb0f39066ce7d249297b

splitter: 1.1.3 - Refined test & fixed a bug in the splitting-pattern

- The tests now sends messages for two users and asserts, that the
  messages are handled accordingly for each user.
- The test now send messages with german umlauts and other special german
  characters.
- Fixed a bug in the pattern, that is used for the spltting: language
  specific special characters were handled as non-word characters.
---

diff --git a/src/main/java/de/juplo/kafka/wordcount/splitter/SplitterStreamProcessor.java b/src/main/java/de/juplo/kafka/wordcount/splitter/SplitterStreamProcessor.java
index 86d5bbd..66188a7 100644
--- a/src/main/java/de/juplo/kafka/wordcount/splitter/SplitterStreamProcessor.java
+++ b/src/main/java/de/juplo/kafka/wordcount/splitter/SplitterStreamProcessor.java
@@ -28,7 +28,7 @@ import static org.apache.kafka.streams.errors.StreamsUncaughtExceptionHandler.St
 @Component
 public class SplitterStreamProcessor
 {
-	final static Pattern PATTERN = Pattern.compile("\\W+");
+	final static Pattern PATTERN = Pattern.compile("[^\\p{IsAlphabetic}]+");
 
 	public final KafkaStreams streams;
 
diff --git a/src/test/java/de/juplo/kafka/wordcount/splitter/SplitterApplicationTests.java b/src/test/java/de/juplo/kafka/wordcount/splitter/SplitterApplicationTests.java
index 9b1960f..3fa5851 100644
--- a/src/test/java/de/juplo/kafka/wordcount/splitter/SplitterApplicationTests.java
+++ b/src/test/java/de/juplo/kafka/wordcount/splitter/SplitterApplicationTests.java
@@ -12,10 +12,10 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.kafka.annotation.KafkaListener;
 import org.springframework.kafka.core.KafkaTemplate;
 import org.springframework.kafka.test.context.EmbeddedKafka;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
 
 import java.time.Duration;
-import java.util.LinkedList;
-import java.util.List;
 
 import static de.juplo.kafka.wordcount.splitter.SplitterApplicationTests.*;
 import static org.assertj.core.api.Assertions.assertThat;
@@ -57,31 +57,48 @@ public class SplitterApplicationTests
 		Recording recording = new Recording();
 		recording.setUser("peter");
 		recording.setSentence("Hallo Welt!");
-		kafkaTemplate.send(TOPIC_IN, mapper.writeValueAsString(recording));
-
-		String word1 = mapper.writeValueAsString(Word.of("peter", "Hallo"));
-		String word2 = mapper.writeValueAsString(Word.of("peter", "Welt"));
+		kafkaTemplate.send(TOPIC_IN, recording.getUser(), mapper.writeValueAsString(recording));
+		recording.setUser("klaus");
+		recording.setSentence("Müsch gäb's auch!");
+		kafkaTemplate.send(TOPIC_IN, recording.getUser(), mapper.writeValueAsString(recording));
+		recording.setUser("peter");
+		recording.setSentence("Boäh, echt! ß 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", "ß"));
+		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"));
 
 		await("Expexted converted data")
 				.atMost(Duration.ofSeconds(5))
 				.untilAsserted(() ->
 				{
 					assertThat(consumer.received).hasSize(2);
-					assertThat(consumer.received.get(0).value()).isEqualTo(word1);
-					assertThat(consumer.received.get(1).value()).isEqualTo(word2);
+					assertThat(consumer.received.get("klaus")).containsExactly(klaus1, klaus2, klaus3, klaus4);
+					assertThat(consumer.received.get("peter")).containsExactly(peter1, peter2, peter3, peter4, peter5, peter6, peter7, peter8);
 				});
 	}
 
 
 	static class Consumer
 	{
-		final List<ConsumerRecord<String, String>> received = new LinkedList<>();
+		final MultiValueMap<String, String> received = new LinkedMultiValueMap<>();
 
 		@KafkaListener(groupId = "TEST", topics = TOPIC_OUT)
 		public void receive(ConsumerRecord<String, String> record)
 		{
 			log.debug("Received message: {}", record);
-			received.add(record);
+			received.add(record.key(), record.value());
 		}
 	}