refactor: Moved common test-code into helper-class `KafkaTestUtils`

diff --git a/src/test/java/de/juplo/kafka/chat/backend/KafkaConfigurationIT.java b/src/test/java/de/juplo/kafka/chat/backend/KafkaConfigurationIT.java
index 865dda7..d9ed8eb 100644 (file)
--- a/src/test/java/de/juplo/kafka/chat/backend/KafkaConfigurationIT.java
+++ b/src/test/java/de/juplo/kafka/chat/backend/KafkaConfigurationIT.java
@@ -2,23 +2,16 @@ package de.juplo.kafka.chat.backend;
 
 import de.juplo.kafka.chat.backend.implementation.kafka.*;
 import lombok.extern.slf4j.Slf4j;
-import org.apache.kafka.clients.producer.ProducerRecord;
-import org.apache.kafka.common.TopicPartition;
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.TestConfiguration;
 import org.springframework.boot.test.mock.mockito.MockBean;
-import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Import;
 import org.springframework.kafka.core.KafkaTemplate;
-import org.springframework.kafka.support.SendResult;
 import org.springframework.kafka.test.context.EmbeddedKafka;
 
-import java.util.List;
-
 import static de.juplo.kafka.chat.backend.KafkaConfigurationIT.DATA_TOPIC;
 import static de.juplo.kafka.chat.backend.KafkaConfigurationIT.INFO_TOPIC;
 
@@ -52,54 +45,23 @@ class KafkaConfigurationIT extends AbstractConfigurationWithShardingIT
       @Autowired KafkaTemplate<String, String> messageTemplate,
       @Autowired ConsumerTaskRunner consumerTaskRunner)
   {
-    send(messageTemplate, INFO_TOPIC, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\": \"5c73531c-6fc4-426c-adcb-afc5c140a0f7\", \"shard\": 2, \"name\": \"FOO\" }", "event_chatroom_created");
-    send(messageTemplate, DATA_TOPIC, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 1, \"user\" : \"peter\", \"text\" : \"Hallo, ich heiße Peter!\" }", "event_chatmessage_received");
-    send(messageTemplate, DATA_TOPIC, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 1, \"user\" : \"ute\", \"text\" : \"Ich bin Ute...\" }", "event_chatmessage_received");
-    send(messageTemplate, DATA_TOPIC, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 2, \"user\" : \"peter\", \"text\" : \"Willst du mit mir gehen?\" }", "event_chatmessage_received");
-    send(messageTemplate, DATA_TOPIC, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 1, \"user\" : \"klaus\", \"text\" : \"Ja? Nein? Vielleicht??\" }", "event_chatmessage_received");
-
-    consumerTaskRunner.run();
+    KafkaTestUtils.sendAndLoadStoredData(
+        messageTemplate,
+        INFO_TOPIC,
+        DATA_TOPIC,
+        consumerTaskRunner);
   }
 
-  static void send(
-      KafkaTemplate<String, String> kafkaTemplate,
-      String topic,
-      String key,
-      String value,
-      String typeId)
-  {
-    ProducerRecord<String, String> record = new ProducerRecord<>(topic, key, value);
-    record.headers().add("__TypeId__", typeId.getBytes());
-    SendResult<String, String> result = kafkaTemplate.send(record).join();
-    log.info(
-        "Sent {}={} to {}",
-        key,
-        value,
-        new TopicPartition(result.getRecordMetadata().topic(), result.getRecordMetadata().partition()));
-  }
   @AfterAll
   static void joinConsumerTasks(@Autowired ConsumerTaskRunner consumerTaskRunner)
   {
-    consumerTaskRunner.joinConsumerTasks();
+    KafkaTestUtils.joinConsumerTasks(consumerTaskRunner);
   }
 
 
   @TestConfiguration
-  @EnableConfigurationProperties(ChatBackendProperties.class)
-  @Import(KafkaServicesConfiguration.class)
+  @Import(KafkaTestUtils.KafkaTestConfiguration.class)
   static class KafkaConfigurationITConfiguration
   {
-    @Bean
-    WorkAssignor dataChannelWorkAssignor(
-        DataChannel dataChannel)
-    {
-      return consumer ->
-      {
-        List<TopicPartition> assignedPartitions =
-            List.of(new TopicPartition(DATA_TOPIC, 2));
-        consumer.assign(assignedPartitions);
-        dataChannel.onPartitionsAssigned(assignedPartitions);
-      };
-    }
   }
 }

diff --git a/src/test/java/de/juplo/kafka/chat/backend/implementation/kafka/KafkaChatHomeServiceTest.java b/src/test/java/de/juplo/kafka/chat/backend/implementation/kafka/KafkaChatHomeServiceTest.java
index 79cd8f1..394ba1b 100644 (file)
--- a/src/test/java/de/juplo/kafka/chat/backend/implementation/kafka/KafkaChatHomeServiceTest.java
+++ b/src/test/java/de/juplo/kafka/chat/backend/implementation/kafka/KafkaChatHomeServiceTest.java
@@ -1,27 +1,16 @@
 package de.juplo.kafka.chat.backend.implementation.kafka;
 
-import de.juplo.kafka.chat.backend.ChatBackendProperties;
 import de.juplo.kafka.chat.backend.domain.ChatHomeServiceWithShardsTest;
 import lombok.extern.slf4j.Slf4j;
-import org.apache.kafka.clients.producer.ProducerRecord;
-import org.apache.kafka.common.TopicPartition;
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.kafka.KafkaAutoConfiguration;
 import org.springframework.boot.autoconfigure.task.TaskExecutionAutoConfiguration;
-import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.boot.test.context.TestConfiguration;
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Import;
 import org.springframework.kafka.core.KafkaTemplate;
-import org.springframework.kafka.support.SendResult;
 import org.springframework.kafka.test.context.EmbeddedKafka;
 
-import java.time.Clock;
-import java.util.List;
-
 import static de.juplo.kafka.chat.backend.domain.ChatHomeServiceWithShardsTest.NUM_SHARDS;
 import static de.juplo.kafka.chat.backend.implementation.kafka.KafkaChatHomeServiceTest.DATA_TOPIC;
 import static de.juplo.kafka.chat.backend.implementation.kafka.KafkaChatHomeServiceTest.INFO_TOPIC;
@@ -29,19 +18,19 @@ import static de.juplo.kafka.chat.backend.implementation.kafka.KafkaChatHomeServ
 
 @SpringBootTest(
     classes = {
-        KafkaChatHomeServiceTest.KafkaChatHomeTestConfiguration.class,
+        KafkaTestUtils.KafkaTestConfiguration.class,
         KafkaAutoConfiguration.class,
         TaskExecutionAutoConfiguration.class,
     },
     properties = {
-    "spring.main.allow-bean-definition-overriding=true",
-    "chat.backend.services=kafka",
-    "chat.backend.kafka.client-id-PREFIX=TEST",
-    "chat.backend.kafka.bootstrap-servers=${spring.embedded.kafka.brokers}",
-    "spring.kafka.bootstrap-servers=${spring.embedded.kafka.brokers}",
-    "chat.backend.kafka.info-channel-topic=" + INFO_TOPIC,
-    "chat.backend.kafka.data-channel-topic=" + DATA_TOPIC,
-    "chat.backend.kafka.num-partitions=" + NUM_SHARDS,
+        "spring.main.allow-bean-definition-overriding=true",
+        "chat.backend.services=kafka",
+        "chat.backend.kafka.client-id-PREFIX=TEST",
+        "chat.backend.kafka.bootstrap-servers=${spring.embedded.kafka.brokers}",
+        "spring.kafka.bootstrap-servers=${spring.embedded.kafka.brokers}",
+        "chat.backend.kafka.info-channel-topic=" + INFO_TOPIC,
+        "chat.backend.kafka.data-channel-topic=" + DATA_TOPIC,
+        "chat.backend.kafka.num-partitions=" + NUM_SHARDS,
 })
 @EmbeddedKafka(
     topics = { INFO_TOPIC, DATA_TOPIC },
@@ -53,65 +42,21 @@ public class KafkaChatHomeServiceTest extends ChatHomeServiceWithShardsTest
   final static String DATA_TOPIC = "KAFKA_CHAT_HOME_TEST_DATA";
 
 
-  @TestConfiguration
-  @EnableConfigurationProperties(ChatBackendProperties.class)
-  @Import(KafkaServicesConfiguration.class)
-  static class KafkaChatHomeTestConfiguration
-  {
-    @Bean
-    WorkAssignor dataChannelWorkAssignor(DataChannel dataChannel)
-    {
-      return consumer ->
-      {
-        List<TopicPartition> assignedPartitions =
-            List.of(new TopicPartition(DATA_TOPIC, 2));
-        consumer.assign(assignedPartitions);
-        dataChannel.onPartitionsAssigned(assignedPartitions);
-      };
-    }
-
-    @Bean
-    Clock clock()
-    {
-      return Clock.systemDefaultZone();
-    }
-  }
-
-
   @BeforeAll
-  public static void sendAndLoadStoredData(
-      @Autowired ConsumerTaskRunner consumerTaskRunner,
-      @Autowired KafkaTemplate<String, String> messageTemplate) throws InterruptedException
-  {
-    send(messageTemplate, INFO_TOPIC, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\": \"5c73531c-6fc4-426c-adcb-afc5c140a0f7\", \"shard\": 2, \"name\": \"FOO\" }", "event_chatroom_created");
-    send(messageTemplate, DATA_TOPIC, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 1, \"user\" : \"peter\", \"text\" : \"Hallo, ich heiße Peter!\" }", "event_chatmessage_received");
-    send(messageTemplate, DATA_TOPIC, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 1, \"user\" : \"ute\", \"text\" : \"Ich bin Ute...\" }", "event_chatmessage_received");
-    send(messageTemplate, DATA_TOPIC, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 2, \"user\" : \"peter\", \"text\" : \"Willst du mit mir gehen?\" }", "event_chatmessage_received");
-    send(messageTemplate, DATA_TOPIC, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 1, \"user\" : \"klaus\", \"text\" : \"Ja? Nein? Vielleicht??\" }", "event_chatmessage_received");
-
-    consumerTaskRunner.run();
-  }
-
-  static void send(
-      KafkaTemplate<String, String> kafkaTemplate,
-      String topic,
-      String key,
-      String value,
-      String typeId)
+  static void sendAndLoadStoredData(
+      @Autowired KafkaTemplate<String, String> messageTemplate,
+      @Autowired ConsumerTaskRunner consumerTaskRunner)
   {
-    ProducerRecord<String, String> record = new ProducerRecord<>(topic, key, value);
-    record.headers().add("__TypeId__", typeId.getBytes());
-    SendResult<String, String> result = kafkaTemplate.send(record).join();
-    log.info(
-        "Sent {}={} to {}",
-        key,
-        value,
-        new TopicPartition(result.getRecordMetadata().topic(), result.getRecordMetadata().partition()));
+    KafkaTestUtils.sendAndLoadStoredData(
+        messageTemplate,
+        INFO_TOPIC,
+        DATA_TOPIC,
+        consumerTaskRunner);
   }
 
   @AfterAll
   static void joinConsumerTasks(@Autowired ConsumerTaskRunner consumerTaskRunner)
   {
-    consumerTaskRunner.joinConsumerTasks();
+    KafkaTestUtils.joinConsumerTasks(consumerTaskRunner);
   }
 }

diff --git a/src/test/java/de/juplo/kafka/chat/backend/implementation/kafka/KafkaTestUtils.java b/src/test/java/de/juplo/kafka/chat/backend/implementation/kafka/KafkaTestUtils.java
index 79cd8f1..256d3f2 100644 (file)
--- a/src/test/java/de/juplo/kafka/chat/backend/implementation/kafka/KafkaTestUtils.java
+++ b/src/test/java/de/juplo/kafka/chat/backend/implementation/kafka/KafkaTestUtils.java
@@ -1,98 +1,66 @@
 package de.juplo.kafka.chat.backend.implementation.kafka;
 
 import de.juplo.kafka.chat.backend.ChatBackendProperties;
-import de.juplo.kafka.chat.backend.domain.ChatHomeServiceWithShardsTest;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.kafka.clients.producer.ProducerRecord;
 import org.apache.kafka.common.TopicPartition;
-import org.junit.jupiter.api.AfterAll;
-import org.junit.jupiter.api.BeforeAll;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.autoconfigure.kafka.KafkaAutoConfiguration;
-import org.springframework.boot.autoconfigure.task.TaskExecutionAutoConfiguration;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
-import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.TestConfiguration;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Import;
 import org.springframework.kafka.core.KafkaTemplate;
 import org.springframework.kafka.support.SendResult;
-import org.springframework.kafka.test.context.EmbeddedKafka;
 
 import java.time.Clock;
 import java.util.List;
 
-import static de.juplo.kafka.chat.backend.domain.ChatHomeServiceWithShardsTest.NUM_SHARDS;
-import static de.juplo.kafka.chat.backend.implementation.kafka.KafkaChatHomeServiceTest.DATA_TOPIC;
-import static de.juplo.kafka.chat.backend.implementation.kafka.KafkaChatHomeServiceTest.INFO_TOPIC;
 
-
-@SpringBootTest(
-    classes = {
-        KafkaChatHomeServiceTest.KafkaChatHomeTestConfiguration.class,
-        KafkaAutoConfiguration.class,
-        TaskExecutionAutoConfiguration.class,
-    },
-    properties = {
-    "spring.main.allow-bean-definition-overriding=true",
-    "chat.backend.services=kafka",
-    "chat.backend.kafka.client-id-PREFIX=TEST",
-    "chat.backend.kafka.bootstrap-servers=${spring.embedded.kafka.brokers}",
-    "spring.kafka.bootstrap-servers=${spring.embedded.kafka.brokers}",
-    "chat.backend.kafka.info-channel-topic=" + INFO_TOPIC,
-    "chat.backend.kafka.data-channel-topic=" + DATA_TOPIC,
-    "chat.backend.kafka.num-partitions=" + NUM_SHARDS,
-})
-@EmbeddedKafka(
-    topics = { INFO_TOPIC, DATA_TOPIC },
-    partitions = 10)
 @Slf4j
-public class KafkaChatHomeServiceTest extends ChatHomeServiceWithShardsTest
+public class KafkaTestUtils
 {
-  final static String INFO_TOPIC = "KAFKA_CHAT_HOME_TEST_INFO";
-  final static String DATA_TOPIC = "KAFKA_CHAT_HOME_TEST_DATA";
-
-
   @TestConfiguration
   @EnableConfigurationProperties(ChatBackendProperties.class)
   @Import(KafkaServicesConfiguration.class)
-  static class KafkaChatHomeTestConfiguration
+  public static class KafkaTestConfiguration
   {
     @Bean
-    WorkAssignor dataChannelWorkAssignor(DataChannel dataChannel)
+    public WorkAssignor dataChannelWorkAssignor(
+        ChatBackendProperties properties,
+        DataChannel dataChannel)
     {
       return consumer ->
       {
         List<TopicPartition> assignedPartitions =
-            List.of(new TopicPartition(DATA_TOPIC, 2));
+            List.of(new TopicPartition(properties.getKafka().getDataChannelTopic(), 2));
         consumer.assign(assignedPartitions);
         dataChannel.onPartitionsAssigned(assignedPartitions);
       };
     }
 
     @Bean
-    Clock clock()
+    public Clock clock()
     {
       return Clock.systemDefaultZone();
     }
   }
 
 
-  @BeforeAll
   public static void sendAndLoadStoredData(
-      @Autowired ConsumerTaskRunner consumerTaskRunner,
-      @Autowired KafkaTemplate<String, String> messageTemplate) throws InterruptedException
+      KafkaTemplate<String, String> messageTemplate,
+      String infoTopic,
+      String dataTopic,
+      ConsumerTaskRunner consumerTaskRunner)
   {
-    send(messageTemplate, INFO_TOPIC, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\": \"5c73531c-6fc4-426c-adcb-afc5c140a0f7\", \"shard\": 2, \"name\": \"FOO\" }", "event_chatroom_created");
-    send(messageTemplate, DATA_TOPIC, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 1, \"user\" : \"peter\", \"text\" : \"Hallo, ich heiße Peter!\" }", "event_chatmessage_received");
-    send(messageTemplate, DATA_TOPIC, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 1, \"user\" : \"ute\", \"text\" : \"Ich bin Ute...\" }", "event_chatmessage_received");
-    send(messageTemplate, DATA_TOPIC, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 2, \"user\" : \"peter\", \"text\" : \"Willst du mit mir gehen?\" }", "event_chatmessage_received");
-    send(messageTemplate, DATA_TOPIC, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 1, \"user\" : \"klaus\", \"text\" : \"Ja? Nein? Vielleicht??\" }", "event_chatmessage_received");
+    send(messageTemplate, infoTopic, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\": \"5c73531c-6fc4-426c-adcb-afc5c140a0f7\", \"shard\": 2, \"name\": \"FOO\" }", "event_chatroom_created");
+    send(messageTemplate, dataTopic, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 1, \"user\" : \"peter\", \"text\" : \"Hallo, ich heiße Peter!\" }", "event_chatmessage_received");
+    send(messageTemplate, dataTopic, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 1, \"user\" : \"ute\", \"text\" : \"Ich bin Ute...\" }", "event_chatmessage_received");
+    send(messageTemplate, dataTopic, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 2, \"user\" : \"peter\", \"text\" : \"Willst du mit mir gehen?\" }", "event_chatmessage_received");
+    send(messageTemplate, dataTopic, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 1, \"user\" : \"klaus\", \"text\" : \"Ja? Nein? Vielleicht??\" }", "event_chatmessage_received");
 
     consumerTaskRunner.run();
   }
 
-  static void send(
+  private static void send(
       KafkaTemplate<String, String> kafkaTemplate,
       String topic,
       String key,
@@ -109,8 +77,7 @@ public class KafkaChatHomeServiceTest extends ChatHomeServiceWithShardsTest
         new TopicPartition(result.getRecordMetadata().topic(), result.getRecordMetadata().partition()));
   }
 
-  @AfterAll
-  static void joinConsumerTasks(@Autowired ConsumerTaskRunner consumerTaskRunner)
+  public static void joinConsumerTasks(ConsumerTaskRunner consumerTaskRunner)
   {
     consumerTaskRunner.joinConsumerTasks();
   }

diff --git a/src/test/resources/application.yml b/src/test/resources/application.yml
index 96b0cb3..b5579d0 100644 (file)
--- a/src/test/resources/application.yml
+++ b/src/test/resources/application.yml
@@ -1,4 +1,4 @@
 logging:
   level:
-    root: INFO
+    root: DEBUG
     de.juplo.kafka.chat.backend: DEBUG