From ae04ac51dae8d4d8f7d3434e7ddf7a8b40bd5eac Mon Sep 17 00:00:00 2001
From: Kai Moritz <kai@juplo.de>
Date: Sat, 8 Jun 2024 09:36:43 +0200
Subject: [PATCH] counter: 1.2.15 - Refined `CounterApplicationIT`

* Preparations for the addition of new tests
* The messages are send only once during `@BeforeAll`
---
 .../counter/CounterApplicationIT.java         | 37 +++++++++++++------
 1 file changed, 26 insertions(+), 11 deletions(-)

diff --git a/src/test/java/de/juplo/kafka/wordcount/counter/CounterApplicationIT.java b/src/test/java/de/juplo/kafka/wordcount/counter/CounterApplicationIT.java
index cb0a5b7..41e5b62 100644
--- a/src/test/java/de/juplo/kafka/wordcount/counter/CounterApplicationIT.java
+++ b/src/test/java/de/juplo/kafka/wordcount/counter/CounterApplicationIT.java
@@ -6,7 +6,8 @@ import de.juplo.kafka.wordcount.top10.TestOutputWordCounter;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.kafka.streams.state.KeyValueBytesStoreSupplier;
 import org.apache.kafka.streams.state.Stores;
-import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
@@ -16,6 +17,7 @@ import org.springframework.context.annotation.Primary;
 import org.springframework.kafka.annotation.KafkaListener;
 import org.springframework.kafka.core.KafkaTemplate;
 import org.springframework.kafka.support.KafkaHeaders;
+import org.springframework.kafka.support.SendResult;
 import org.springframework.kafka.test.context.EmbeddedKafka;
 import org.springframework.messaging.handler.annotation.Header;
 import org.springframework.messaging.handler.annotation.Payload;
@@ -51,26 +53,39 @@ public class CounterApplicationIT
 	public static final String TOPIC_IN = "in";
 	public static final String TOPIC_OUT = "out";
 
-	@Autowired
-	KafkaTemplate<String, TestInputWord> kafkaTemplate;
 	@Autowired
 	Consumer consumer;
 
 
-	@BeforeEach
-	public void clear()
+	@BeforeAll
+	public static void testSendMessage(
+			@Autowired KafkaTemplate<String, TestInputWord> kafkaTemplate)
 	{
-		consumer.received.clear();
+		TestData
+				.getInputMessages()
+				.forEach(kv ->
+				{
+					try
+					{
+						SendResult<String, TestInputWord> result = kafkaTemplate.send(TOPIC_IN, kv.key, kv.value).get();
+						log.info(
+								"Sent: {}={}, partition={}, offset={}",
+								result.getProducerRecord().key(),
+								result.getProducerRecord().value(),
+								result.getRecordMetadata().partition(),
+								result.getRecordMetadata().offset());
+					}
+					catch (Exception e)
+					{
+						throw new RuntimeException(e);
+					}
+				});
 	}
 
-
+	@DisplayName("Await the expected output messages")
 	@Test
 	void testSendMessage()
 	{
-		TestData
-				.getInputMessages()
-				.forEach(kv -> kafkaTemplate.send(TOPIC_IN, kv.key, kv.value));
-
 		await("Expected messages")
 				.atMost(Duration.ofSeconds(10))
 				.untilAsserted(() -> consumer.enforceAssertion(TestData.expectedMessagesAssertion()));
-- 
2.20.1