From c1defc35245b4427f80d8eb0fda71e5212b38a80 Mon Sep 17 00:00:00 2001
From: Kai Moritz <kai@juplo.de>
Date: Wed, 24 Jan 2024 22:05:09 +0100
Subject: [PATCH] WIP

---
 .../java/de/juplo/kafka/ApplicationTests.java | 83 +++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 src/test/java/de/juplo/kafka/ApplicationTests.java

diff --git a/src/test/java/de/juplo/kafka/ApplicationTests.java b/src/test/java/de/juplo/kafka/ApplicationTests.java
new file mode 100644
index 0000000..9c94204
--- /dev/null
+++ b/src/test/java/de/juplo/kafka/ApplicationTests.java
@@ -0,0 +1,83 @@
+package de.juplo.kafka;
+
+import lombok.extern.slf4j.Slf4j;
+import org.apache.kafka.clients.consumer.ConsumerRecord;
+import org.junit.jupiter.api.*;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+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.test.context.EmbeddedKafka;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+import org.springframework.test.web.servlet.MockMvc;
+
+import java.time.Duration;
+import java.util.LinkedList;
+import java.util.List;
+
+import static de.juplo.kafka.ApplicationTests.PARTITIONS;
+import static de.juplo.kafka.ApplicationTests.TOPIC;
+import static org.awaitility.Awaitility.*;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.put;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+
+@ExtendWith(SpringExtension.class)
+@EmbeddedKafka(topics = TOPIC, partitions = PARTITIONS)
+@Slf4j
+public class ApplicationTests
+{
+	static final String TOPIC = "FOO";
+	static final int PARTITIONS = 10;
+
+  @Value("${spring.embedded.kafka.brokers}")
+  String bootstrapServers;
+
+	@Test
+	void testConcurrentProducers() throws Exception
+	{
+    SimpleProducer instanceA = new SimpleProducer(
+      bootstrapServers,
+      TOPIC,
+      "A");
+    SimpleProducer instanceB = new SimpleProducer(
+      bootstrapServers,
+      TOPIC,
+      "B");
+
+
+		mockMvc
+				.perform(post("/peter").content("Hallo Welt!"))
+				.andExpect(status().isOk());
+		await("Message was send")
+				.atMost(Duration.ofSeconds(5))
+				.until(() -> consumer.received.size() == 1);
+	}
+
+	@Test
+	void testSendFooMessage() throws Exception
+	{
+		mockMvc
+				.perform(put("/peter"))
+				.andExpect(status().isOk());
+		await("Message was send")
+				.atMost(Duration.ofSeconds(5))
+				.until(() -> consumer.received.size() == 1);
+	}
+
+	@Test
+	void testSendGreeting() throws Exception
+	{
+		mockMvc
+				.perform(post("/").content("peter"))
+				.andExpect(status().isOk());
+		await("Message was send")
+				.atMost(Duration.ofSeconds(5))
+				.until(() -> consumer.received.size() == 1);
+	}
+}
-- 
2.20.1