WIP

diff --git a/src/test/java/de/juplo/kafka/ApplicationTests.java b/src/test/java/de/juplo/kafka/ApplicationTests.java
new file mode 100644 (file)
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);
+       }
+}