test: HandoverIT-POC - splitted up code into smaller classes -- ALIGN

diff --git a/src/test/java/de/juplo/kafka/chat/backend/AbstractHandoverIT.java b/src/test/java/de/juplo/kafka/chat/backend/AbstractHandoverIT.java
index f384f7e..2e4faa1 100644 (file)
--- a/src/test/java/de/juplo/kafka/chat/backend/AbstractHandoverIT.java
+++ b/src/test/java/de/juplo/kafka/chat/backend/AbstractHandoverIT.java
@@ -1,13 +1,7 @@
 package de.juplo.kafka.chat.backend;
 
 import de.juplo.kafka.chat.backend.api.ChatRoomInfoTo;
-import de.juplo.kafka.chat.backend.api.MessageTo;
-import lombok.EqualsAndHashCode;
-import lombok.Getter;
-import lombok.Setter;
-import lombok.ToString;
 import lombok.extern.slf4j.Slf4j;
-import org.awaitility.Awaitility;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.springframework.core.ParameterizedTypeReference;
@@ -15,44 +9,36 @@ import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
 import org.springframework.http.codec.ServerSentEvent;
 import org.springframework.web.reactive.function.client.WebClient;
-import org.testcontainers.containers.BindMode;
-import org.testcontainers.containers.GenericContainer;
-import org.testcontainers.containers.Network;
-import org.testcontainers.containers.output.Slf4jLogConsumer;
-import org.testcontainers.containers.wait.strategy.Wait;
-import org.testcontainers.images.ImagePullPolicy;
 import org.testcontainers.junit.jupiter.Testcontainers;
-import org.testcontainers.utility.DockerImageName;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
-import reactor.util.retry.Retry;
-
-import java.io.IOException;
-import java.time.Duration;
-import java.util.stream.IntStream;
 
 
 @Testcontainers
 @Slf4j
 public abstract class AbstractHandoverIT
 {
-  static final ImagePullPolicy NEVER_PULL = imageName -> false;
   static final ParameterizedTypeReference<ServerSentEvent<String>> SSE_TYPE = new ParameterizedTypeReference<>() {};
 
 
+  private final AbstractHandoverITContainers containers;
+
+
+  AbstractHandoverIT(AbstractHandoverITContainers containers)
+  {
+    this.containers = containers;
+  }
+
+
   @Test
   void test() throws InterruptedException
   {
     ChatRoomInfoTo chatRoom = createChatRoom("bar").block();
-    User user = new User("nerd");
-    IntStream
-        .rangeClosed(1,100)
-        .mapToObj(i ->sendMessage(chatRoom, user, "Message #" + i))
-        .map(result -> result
-            .map(MessageTo::toString)
-            .retryWhen(Retry.fixedDelay(10, Duration.ofSeconds(1)))
-            .block())
-        .forEach(result -> log.info("{}", result));
+    TestClient testClient = new TestClient(
+        containers.haproxy.getMappedPort(8400),
+        chatRoom,
+        "nerd");
+    testClient.run();
 
     receiveMessages(chatRoom)
         .take(100)
@@ -82,34 +68,6 @@ public abstract class AbstractHandoverIT
         });
   }
 
-  Mono<MessageTo> sendMessage(
-      ChatRoomInfoTo chatRoom,
-      User user,
-      String message)
-  {
-    return webClient
-        .put()
-        .uri(
-            "/{chatRoomId}/{username}/{serial}",
-            chatRoom.getId(),
-            user.getName(),
-            user.nextSerial())
-        .contentType(MediaType.TEXT_PLAIN)
-        .accept(MediaType.APPLICATION_JSON)
-        .bodyValue(message)
-        .exchangeToMono(response ->
-        {
-          if (response.statusCode().equals(HttpStatus.OK))
-          {
-            return response.bodyToMono(MessageTo.class);
-          }
-          else
-          {
-            return response.createError();
-          }
-        });
-  }
-
   Flux<ServerSentEvent<String>> receiveMessages(ChatRoomInfoTo chatRoom)
   {
     return webClient
@@ -125,150 +83,12 @@ public abstract class AbstractHandoverIT
 
   WebClient webClient;
 
-
-  abstract void setUpExtra() throws IOException, InterruptedException;
-
   @BeforeEach
   void setUp() throws Exception
   {
-    setUpExtra();
-    haproxy.start();
-    backend1.start();
-    // backend2.start();
-    // backend3.start();
+    containers.setUp();
 
-    Integer port = haproxy.getMappedPort(8400);
+    Integer port = containers.haproxy.getMappedPort(8400);
     webClient = WebClient.create("http://localhost:" + port);
-
-    Awaitility
-        .await()
-        .atMost(Duration.ofMinutes(10))
-        .until(() -> WebClient
-            .create("http://localhost:" + backend1.getMappedPort(8080))
-            .get()
-            .uri("/actuator/health")
-            .exchangeToMono(response ->
-            {
-              if (response.statusCode().equals(HttpStatus.OK))
-              {
-                return response
-                    .bodyToMono(StatusTo.class)
-                    .map(StatusTo::getStatus)
-                    .map(status -> status.equalsIgnoreCase("UP"));
-              }
-              else
-              {
-                return Mono.just(false);
-              }
-            })
-            .block());
-
-    haproxy
-        .getDockerClient()
-        .killContainerCmd(haproxy.getContainerId())
-        .withSignal("HUP")
-        .exec();
-
-
-    Awaitility
-        .await()
-        .atMost(Duration.ofMinutes(10))
-        .until(() -> webClient
-            .get()
-            .uri("/actuator/health")
-            .exchangeToMono(response ->
-            {
-              if (response.statusCode().equals(HttpStatus.OK))
-              {
-                return response
-                    .bodyToMono(StatusTo.class)
-                    .map(StatusTo::getStatus)
-                    .map(status -> status.equalsIgnoreCase("UP"));
-              }
-              else
-              {
-                return Mono.just(false);
-              }
-            })
-            .block());
-  }
-
-  Network network = Network.newNetwork();
-
-  GenericContainer haproxy =
-      new GenericContainer(DockerImageName.parse("haproxytech/haproxy-debian:2.8"))
-          .withNetwork(network)
-          .withNetworkAliases("haproxy")
-          .withClasspathResourceMapping(
-              "haproxy.cfg",
-              "/usr/local/etc/haproxy/haproxy.cfg",
-              BindMode.READ_ONLY)
-          .withClasspathResourceMapping(
-              "sharding.map",
-              "/usr/local/etc/haproxy/sharding.map",
-              BindMode.READ_WRITE)
-          .withExposedPorts(8400, 8401, 8404)
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("HAPROXY"));
-
-  abstract String[] getCommandBackend1();
-  GenericContainer backend1 =
-      new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
-          .withImagePullPolicy(NEVER_PULL)
-          .withNetwork(network)
-          .withNetworkAliases("backend-1")
-          .withCommand(getCommandBackend1())
-          .withExposedPorts(8080)
-          .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-1"));
-
-  abstract String[] getCommandBackend2();
-  GenericContainer backend2 =
-      new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
-          .withImagePullPolicy(NEVER_PULL)
-          .withNetwork(network)
-          .withNetworkAliases("backend-2")
-          .withCommand(getCommandBackend2())
-          .withExposedPorts(8080)
-          .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-2"));
-
-  abstract String[] getCommandBackend3();
-  GenericContainer backend3 =
-      new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
-          .withImagePullPolicy(NEVER_PULL)
-          .withNetwork(network)
-          .withNetworkAliases("backend-3")
-          .withCommand(getCommandBackend3())
-          .withExposedPorts(8080)
-          .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-3"));
-
-
-  @EqualsAndHashCode
-  @ToString
-  class User
-  {
-    @Getter
-    private final String name;
-    private int serial = 0;
-
-
-    User (String name)
-    {
-      this.name = name;
-    }
-
-
-    int nextSerial()
-    {
-      return ++serial;
-    }
-  }
-
-  @Getter
-  @Setter
-  static class StatusTo
-  {
-    String status;
   }
 }

diff --git a/src/test/java/de/juplo/kafka/chat/backend/AbstractHandoverITContainers.java b/src/test/java/de/juplo/kafka/chat/backend/AbstractHandoverITContainers.java
index b22166f..4e19def 100644 (file)
--- a/src/test/java/de/juplo/kafka/chat/backend/AbstractHandoverITContainers.java
+++ b/src/test/java/de/juplo/kafka/chat/backend/AbstractHandoverITContainers.java
@@ -1,19 +1,8 @@
 package de.juplo.kafka.chat.backend;
 
-import de.juplo.kafka.chat.backend.api.ChatRoomInfoTo;
-import de.juplo.kafka.chat.backend.api.MessageTo;
-import lombok.EqualsAndHashCode;
-import lombok.Getter;
-import lombok.Setter;
-import lombok.ToString;
 import lombok.extern.slf4j.Slf4j;
 import org.awaitility.Awaitility;
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Test;
-import org.springframework.core.ParameterizedTypeReference;
 import org.springframework.http.HttpStatus;
-import org.springframework.http.MediaType;
-import org.springframework.http.codec.ServerSentEvent;
 import org.springframework.web.reactive.function.client.WebClient;
 import org.testcontainers.containers.BindMode;
 import org.testcontainers.containers.GenericContainer;
@@ -21,49 +10,37 @@ import org.testcontainers.containers.Network;
 import org.testcontainers.containers.output.Slf4jLogConsumer;
 import org.testcontainers.containers.wait.strategy.Wait;
 import org.testcontainers.images.ImagePullPolicy;
-import org.testcontainers.junit.jupiter.Testcontainers;
 import org.testcontainers.utility.DockerImageName;
-import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
-import reactor.util.retry.Retry;
 
-import java.io.IOException;
 import java.time.Duration;
-import java.util.stream.IntStream;
+import java.util.Arrays;
 
 
-@Testcontainers
 @Slf4j
-public abstract class AbstractHandoverIT
+public abstract class AbstractHandoverITContainers
 {
   static final ImagePullPolicy NEVER_PULL = imageName -> false;
 
 
-  @Test
-  void test() throws InterruptedException
+  final Network network = Network.newNetwork();
+  final GenericContainer haproxy, backend1, backend2, backend3;
+
+
+  AbstractHandoverITContainers()
   {
-    ChatRoomInfoTo chatRoom = createChatRoom("bar").block();
-    User user = new User("nerd");
-    IntStream
-        .rangeClosed(1,100)
-        .mapToObj(i ->sendMessage(chatRoom, user, "Message #" + i))
-        .map(result -> result
-            .map(MessageTo::toString)
-            .retryWhen(Retry.fixedDelay(10, Duration.ofSeconds(1)))
-            .block())
-        .forEach(result -> log.info("{}", result));
-
-    receiveMessages(chatRoom)
-        .take(100)
-        .doOnNext(message -> log.info("message: {}", message))
-        .then()
-        .block();
+    haproxy = createHaproxyContainer();
+    backend1 = createBackendContainer("1");
+    backend2 = createBackendContainer("2");
+    backend3 = createBackendContainer("3");
   }
 
 
-  abstract void setUpExtra() throws IOException, InterruptedException;
+  void setUpExtra() throws Exception
+  {
+    log.info("This setup does not need any extra containers");
+  }
 
-  @BeforeEach
   void setUp() throws Exception
   {
     setUpExtra();
@@ -126,82 +103,40 @@ public abstract class AbstractHandoverIT
             .block());
   }
 
-  Network network = Network.newNetwork();
-
-  GenericContainer haproxy =
-      new GenericContainer(DockerImageName.parse("haproxytech/haproxy-debian:2.8"))
-          .withNetwork(network)
-          .withNetworkAliases("haproxy")
-          .withClasspathResourceMapping(
-              "haproxy.cfg",
-              "/usr/local/etc/haproxy/haproxy.cfg",
-              BindMode.READ_ONLY)
-          .withClasspathResourceMapping(
-              "sharding.map",
-              "/usr/local/etc/haproxy/sharding.map",
-              BindMode.READ_WRITE)
-          .withExposedPorts(8400, 8401, 8404)
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("HAPROXY"));
-
-  abstract String[] getCommandBackend1();
-  GenericContainer backend1 =
-      new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
-          .withImagePullPolicy(NEVER_PULL)
-          .withNetwork(network)
-          .withNetworkAliases("backend-1")
-          .withCommand(getCommandBackend1())
-          .withExposedPorts(8080)
-          .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-1"));
-
-  abstract String[] getCommandBackend2();
-  GenericContainer backend2 =
-      new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
-          .withImagePullPolicy(NEVER_PULL)
-          .withNetwork(network)
-          .withNetworkAliases("backend-2")
-          .withCommand(getCommandBackend2())
-          .withExposedPorts(8080)
-          .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-2"));
-
-  abstract String[] getCommandBackend3();
-  GenericContainer backend3 =
-      new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
-          .withImagePullPolicy(NEVER_PULL)
-          .withNetwork(network)
-          .withNetworkAliases("backend-3")
-          .withCommand(getCommandBackend3())
-          .withExposedPorts(8080)
-          .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-3"));
-
-
-  @EqualsAndHashCode
-  @ToString
-  class User
-  {
-    @Getter
-    private final String name;
-    private int serial = 0;
+  abstract String[] getBackendCommand();
 
-
-    User (String name)
-    {
-      this.name = name;
-    }
-
-
-    int nextSerial()
-    {
-      return ++serial;
-    }
+  final GenericContainer createHaproxyContainer()
+  {
+    return new GenericContainer(DockerImageName.parse("haproxytech/haproxy-debian:2.8"))
+        .withNetwork(network)
+        .withNetworkAliases("haproxy")
+        .withClasspathResourceMapping(
+            "haproxy.cfg",
+            "/usr/local/etc/haproxy/haproxy.cfg",
+            BindMode.READ_ONLY)
+        .withClasspathResourceMapping(
+            "sharding.map",
+            "/usr/local/etc/haproxy/sharding.map",
+            BindMode.READ_WRITE)
+        .withExposedPorts(8400, 8401, 8404)
+        .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("HAPROXY"));
   }
 
-  @Getter
-  @Setter
-  static class StatusTo
+  final GenericContainer createBackendContainer(String id)
   {
-    String status;
+    return new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
+      .withImagePullPolicy(NEVER_PULL)
+      .withNetwork(network)
+      .withNetworkAliases("backend-ID".replaceAll("ID", id))
+      .withCommand(Arrays.stream(getBackendCommand())
+          .map(commandPart -> commandPart.replaceAll("ID", id))
+          .toArray(size -> new String[size]))
+      .withExposedPorts(8080)
+      .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
+      .withLogConsumer(new Slf4jLogConsumer(
+          log,
+          true
+          )
+          .withPrefix("BACKEND-ID".replaceAll("ID", id)));
   }
 }

diff --git a/src/test/java/de/juplo/kafka/chat/backend/KafkaHandoverIT.java b/src/test/java/de/juplo/kafka/chat/backend/KafkaHandoverIT.java
index 7c511fd..0a6c75d 100644 (file)
--- a/src/test/java/de/juplo/kafka/chat/backend/KafkaHandoverIT.java
+++ b/src/test/java/de/juplo/kafka/chat/backend/KafkaHandoverIT.java
@@ -1,108 +1,13 @@
 package de.juplo.kafka.chat.backend;
 
 import lombok.extern.slf4j.Slf4j;
-import org.testcontainers.containers.*;
-import org.testcontainers.containers.output.Slf4jLogConsumer;
-import org.testcontainers.containers.wait.strategy.Wait;
-import org.testcontainers.utility.DockerImageName;
-
-import java.io.IOException;
 
 
 @Slf4j
 class KafkaHandoverIT extends AbstractHandoverIT
 {
-  @Override
-  void setUpExtra() throws IOException, InterruptedException
-  {
-    kafka.start();
-
-    Container.ExecResult result;
-    result = kafka.execInContainer(
-        "kafka-topics",
-        "--bootstrap-server",
-        "kafka:9999",
-        "--create",
-        "--topic",
-        "info_channel",
-        "--partitions",
-        "3");
-    log.info(
-        "EXIT-CODE={}, STDOUT={}, STDERR={}",
-        result.getExitCode(),
-        result.getStdout(),
-        result.getStdout());
-    result = kafka.execInContainer(
-        "kafka-topics",
-        "--bootstrap-server",
-        "kafka:9999",
-        "--create",
-        "--topic",
-        "data_channel",
-        "--partitions",
-        "10");
-    log.info(
-        "EXIT-CODE={}, STDOUT={}, STDERR={}",
-        result.getExitCode(),
-        result.getStdout(),
-        result.getStdout());
-  }
-
-
-  KafkaContainer kafka =
-      new KafkaContainer(DockerImageName.parse("confluentinc/cp-kafka:7.4.0"))
-          .withNetwork(network)
-          .withNetworkAliases("kafka")
-          .withListener(() -> "kafka:9999")
-          .withKraft()
-          .waitingFor(Wait.forLogMessage(".*Kafka\\ Server\\ started.*\\n", 1))
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("KAFKA"));
-
-  @Override
-  String[] getCommandBackend1()
-  {
-    return new String[]
-    {
-        "--chat.backend.instance-id=backend-1",
-        "--chat.backend.services=kafka",
-        "--chat.backend.kafka.bootstrap-servers=kafka:9999",
-        "--chat.backend.kafka.instance-uri=http://backend-1:8080",
-        "--chat.backend.kafka.num-partitions=10",
-        "--chat.backend.kafka.client-id-prefix=B1",
-        "--chat.backend.kafka.haproxy-runtime-api=haproxy:8401",
-        "--chat.backend.kafka.haproxy-map=/usr/local/etc/haproxy/sharding.map"
-    };
-  }
-
-  @Override
-  String[] getCommandBackend2()
-  {
-    return new String[]
-    {
-        "--chat.backend.instance-id=backend-2",
-        "--chat.backend.services=kafka",
-        "--chat.backend.kafka.bootstrap-servers=kafka:9999",
-        "--chat.backend.kafka.instance-uri=http://backend-2:8080",
-        "--chat.backend.kafka.num-partitions=10",
-        "--chat.backend.kafka.client-id-prefix=B2",
-        "--chat.backend.kafka.haproxy-runtime-api=haproxy:8401",
-        "--chat.backend.kafka.haproxy-map=/usr/local/etc/haproxy/sharding.map"
-    };
-  }
-
-  @Override
-  String[] getCommandBackend3()
+  KafkaHandoverIT()
   {
-    return new String[]
-    {
-        "--chat.backend.instance-id=backend-3",
-        "--chat.backend.services=kafka",
-        "--chat.backend.kafka.bootstrap-servers=kafka:9999",
-        "--chat.backend.kafka.instance-uri=http://backend-3:8080",
-        "--chat.backend.kafka.num-partitions=10",
-        "--chat.backend.kafka.client-id-prefix=B3",
-        "--chat.backend.kafka.haproxy-runtime-api=haproxy:8401",
-        "--chat.backend.kafka.haproxy-map=/usr/local/etc/haproxy/sharding.map"
-    };
+    super(new KafkaHandoverITContainers());
   }
 }

diff --git a/src/test/java/de/juplo/kafka/chat/backend/KafkaHandoverITContainers.java b/src/test/java/de/juplo/kafka/chat/backend/KafkaHandoverITContainers.java
index 7c511fd..3c4c90f 100644 (file)
--- a/src/test/java/de/juplo/kafka/chat/backend/KafkaHandoverITContainers.java
+++ b/src/test/java/de/juplo/kafka/chat/backend/KafkaHandoverITContainers.java
@@ -1,7 +1,8 @@
 package de.juplo.kafka.chat.backend;
 
 import lombok.extern.slf4j.Slf4j;
-import org.testcontainers.containers.*;
+import org.testcontainers.containers.Container;
+import org.testcontainers.containers.KafkaContainer;
 import org.testcontainers.containers.output.Slf4jLogConsumer;
 import org.testcontainers.containers.wait.strategy.Wait;
 import org.testcontainers.utility.DockerImageName;
@@ -10,7 +11,7 @@ import java.io.IOException;
 
 
 @Slf4j
-class KafkaHandoverIT extends AbstractHandoverIT
+class KafkaHandoverITContainers extends AbstractHandoverITContainers
 {
   @Override
   void setUpExtra() throws IOException, InterruptedException
@@ -49,7 +50,7 @@ class KafkaHandoverIT extends AbstractHandoverIT
   }
 
 
-  KafkaContainer kafka =
+  private final KafkaContainer kafka =
       new KafkaContainer(DockerImageName.parse("confluentinc/cp-kafka:7.4.0"))
           .withNetwork(network)
           .withNetworkAliases("kafka")
@@ -58,49 +59,18 @@ class KafkaHandoverIT extends AbstractHandoverIT
           .waitingFor(Wait.forLogMessage(".*Kafka\\ Server\\ started.*\\n", 1))
           .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("KAFKA"));
 
-  @Override
-  String[] getCommandBackend1()
-  {
-    return new String[]
-    {
-        "--chat.backend.instance-id=backend-1",
-        "--chat.backend.services=kafka",
-        "--chat.backend.kafka.bootstrap-servers=kafka:9999",
-        "--chat.backend.kafka.instance-uri=http://backend-1:8080",
-        "--chat.backend.kafka.num-partitions=10",
-        "--chat.backend.kafka.client-id-prefix=B1",
-        "--chat.backend.kafka.haproxy-runtime-api=haproxy:8401",
-        "--chat.backend.kafka.haproxy-map=/usr/local/etc/haproxy/sharding.map"
-    };
-  }
-
-  @Override
-  String[] getCommandBackend2()
-  {
-    return new String[]
-    {
-        "--chat.backend.instance-id=backend-2",
-        "--chat.backend.services=kafka",
-        "--chat.backend.kafka.bootstrap-servers=kafka:9999",
-        "--chat.backend.kafka.instance-uri=http://backend-2:8080",
-        "--chat.backend.kafka.num-partitions=10",
-        "--chat.backend.kafka.client-id-prefix=B2",
-        "--chat.backend.kafka.haproxy-runtime-api=haproxy:8401",
-        "--chat.backend.kafka.haproxy-map=/usr/local/etc/haproxy/sharding.map"
-    };
-  }
 
   @Override
-  String[] getCommandBackend3()
+  String[] getBackendCommand()
   {
     return new String[]
     {
-        "--chat.backend.instance-id=backend-3",
+        "--chat.backend.instance-id=backend-ID",
         "--chat.backend.services=kafka",
         "--chat.backend.kafka.bootstrap-servers=kafka:9999",
-        "--chat.backend.kafka.instance-uri=http://backend-3:8080",
+        "--chat.backend.kafka.instance-uri=http://backend-ID:8080",
         "--chat.backend.kafka.num-partitions=10",
-        "--chat.backend.kafka.client-id-prefix=B3",
+        "--chat.backend.kafka.client-id-prefix=BID",
         "--chat.backend.kafka.haproxy-runtime-api=haproxy:8401",
         "--chat.backend.kafka.haproxy-map=/usr/local/etc/haproxy/sharding.map"
     };

diff --git a/src/test/java/de/juplo/kafka/chat/backend/StatusTo.java b/src/test/java/de/juplo/kafka/chat/backend/StatusTo.java
index f384f7e..f620942 100644 (file)
--- a/src/test/java/de/juplo/kafka/chat/backend/StatusTo.java
+++ b/src/test/java/de/juplo/kafka/chat/backend/StatusTo.java
@@ -1,274 +1,13 @@
 package de.juplo.kafka.chat.backend;
 
-import de.juplo.kafka.chat.backend.api.ChatRoomInfoTo;
-import de.juplo.kafka.chat.backend.api.MessageTo;
-import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import lombok.Setter;
-import lombok.ToString;
-import lombok.extern.slf4j.Slf4j;
-import org.awaitility.Awaitility;
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Test;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.MediaType;
-import org.springframework.http.codec.ServerSentEvent;
-import org.springframework.web.reactive.function.client.WebClient;
-import org.testcontainers.containers.BindMode;
-import org.testcontainers.containers.GenericContainer;
-import org.testcontainers.containers.Network;
-import org.testcontainers.containers.output.Slf4jLogConsumer;
-import org.testcontainers.containers.wait.strategy.Wait;
-import org.testcontainers.images.ImagePullPolicy;
-import org.testcontainers.junit.jupiter.Testcontainers;
-import org.testcontainers.utility.DockerImageName;
-import reactor.core.publisher.Flux;
-import reactor.core.publisher.Mono;
-import reactor.util.retry.Retry;
 
-import java.io.IOException;
-import java.time.Duration;
-import java.util.stream.IntStream;
 
 
-@Testcontainers
-@Slf4j
-public abstract class AbstractHandoverIT
+@Getter
+@Setter
+class StatusTo
 {
-  static final ImagePullPolicy NEVER_PULL = imageName -> false;
-  static final ParameterizedTypeReference<ServerSentEvent<String>> SSE_TYPE = new ParameterizedTypeReference<>() {};
-
-
-  @Test
-  void test() throws InterruptedException
-  {
-    ChatRoomInfoTo chatRoom = createChatRoom("bar").block();
-    User user = new User("nerd");
-    IntStream
-        .rangeClosed(1,100)
-        .mapToObj(i ->sendMessage(chatRoom, user, "Message #" + i))
-        .map(result -> result
-            .map(MessageTo::toString)
-            .retryWhen(Retry.fixedDelay(10, Duration.ofSeconds(1)))
-            .block())
-        .forEach(result -> log.info("{}", result));
-
-    receiveMessages(chatRoom)
-        .take(100)
-        .doOnNext(message -> log.info("message: {}", message))
-        .then()
-        .block();
-  }
-
-  Mono<ChatRoomInfoTo> createChatRoom(String name)
-  {
-    return webClient
-        .post()
-        .uri("/create")
-        .contentType(MediaType.TEXT_PLAIN)
-        .bodyValue(name)
-        .accept(MediaType.APPLICATION_JSON)
-        .exchangeToMono(response ->
-        {
-          if (response.statusCode().equals(HttpStatus.OK))
-          {
-            return response.bodyToMono(ChatRoomInfoTo.class);
-          }
-          else
-          {
-            return response.createError();
-          }
-        });
-  }
-
-  Mono<MessageTo> sendMessage(
-      ChatRoomInfoTo chatRoom,
-      User user,
-      String message)
-  {
-    return webClient
-        .put()
-        .uri(
-            "/{chatRoomId}/{username}/{serial}",
-            chatRoom.getId(),
-            user.getName(),
-            user.nextSerial())
-        .contentType(MediaType.TEXT_PLAIN)
-        .accept(MediaType.APPLICATION_JSON)
-        .bodyValue(message)
-        .exchangeToMono(response ->
-        {
-          if (response.statusCode().equals(HttpStatus.OK))
-          {
-            return response.bodyToMono(MessageTo.class);
-          }
-          else
-          {
-            return response.createError();
-          }
-        });
-  }
-
-  Flux<ServerSentEvent<String>> receiveMessages(ChatRoomInfoTo chatRoom)
-  {
-    return webClient
-        .get()
-        .uri(
-            "/{chatRoomId}/listen",
-            chatRoom.getId())
-        .accept(MediaType.TEXT_EVENT_STREAM)
-        .retrieve()
-        .bodyToFlux(SSE_TYPE);
-  }
-
-
-  WebClient webClient;
-
-
-  abstract void setUpExtra() throws IOException, InterruptedException;
-
-  @BeforeEach
-  void setUp() throws Exception
-  {
-    setUpExtra();
-    haproxy.start();
-    backend1.start();
-    // backend2.start();
-    // backend3.start();
-
-    Integer port = haproxy.getMappedPort(8400);
-    webClient = WebClient.create("http://localhost:" + port);
-
-    Awaitility
-        .await()
-        .atMost(Duration.ofMinutes(10))
-        .until(() -> WebClient
-            .create("http://localhost:" + backend1.getMappedPort(8080))
-            .get()
-            .uri("/actuator/health")
-            .exchangeToMono(response ->
-            {
-              if (response.statusCode().equals(HttpStatus.OK))
-              {
-                return response
-                    .bodyToMono(StatusTo.class)
-                    .map(StatusTo::getStatus)
-                    .map(status -> status.equalsIgnoreCase("UP"));
-              }
-              else
-              {
-                return Mono.just(false);
-              }
-            })
-            .block());
-
-    haproxy
-        .getDockerClient()
-        .killContainerCmd(haproxy.getContainerId())
-        .withSignal("HUP")
-        .exec();
-
-
-    Awaitility
-        .await()
-        .atMost(Duration.ofMinutes(10))
-        .until(() -> webClient
-            .get()
-            .uri("/actuator/health")
-            .exchangeToMono(response ->
-            {
-              if (response.statusCode().equals(HttpStatus.OK))
-              {
-                return response
-                    .bodyToMono(StatusTo.class)
-                    .map(StatusTo::getStatus)
-                    .map(status -> status.equalsIgnoreCase("UP"));
-              }
-              else
-              {
-                return Mono.just(false);
-              }
-            })
-            .block());
-  }
-
-  Network network = Network.newNetwork();
-
-  GenericContainer haproxy =
-      new GenericContainer(DockerImageName.parse("haproxytech/haproxy-debian:2.8"))
-          .withNetwork(network)
-          .withNetworkAliases("haproxy")
-          .withClasspathResourceMapping(
-              "haproxy.cfg",
-              "/usr/local/etc/haproxy/haproxy.cfg",
-              BindMode.READ_ONLY)
-          .withClasspathResourceMapping(
-              "sharding.map",
-              "/usr/local/etc/haproxy/sharding.map",
-              BindMode.READ_WRITE)
-          .withExposedPorts(8400, 8401, 8404)
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("HAPROXY"));
-
-  abstract String[] getCommandBackend1();
-  GenericContainer backend1 =
-      new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
-          .withImagePullPolicy(NEVER_PULL)
-          .withNetwork(network)
-          .withNetworkAliases("backend-1")
-          .withCommand(getCommandBackend1())
-          .withExposedPorts(8080)
-          .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-1"));
-
-  abstract String[] getCommandBackend2();
-  GenericContainer backend2 =
-      new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
-          .withImagePullPolicy(NEVER_PULL)
-          .withNetwork(network)
-          .withNetworkAliases("backend-2")
-          .withCommand(getCommandBackend2())
-          .withExposedPorts(8080)
-          .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-2"));
-
-  abstract String[] getCommandBackend3();
-  GenericContainer backend3 =
-      new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
-          .withImagePullPolicy(NEVER_PULL)
-          .withNetwork(network)
-          .withNetworkAliases("backend-3")
-          .withCommand(getCommandBackend3())
-          .withExposedPorts(8080)
-          .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-3"));
-
-
-  @EqualsAndHashCode
-  @ToString
-  class User
-  {
-    @Getter
-    private final String name;
-    private int serial = 0;
-
-
-    User (String name)
-    {
-      this.name = name;
-    }
-
-
-    int nextSerial()
-    {
-      return ++serial;
-    }
-  }
-
-  @Getter
-  @Setter
-  static class StatusTo
-  {
-    String status;
-  }
+  String status;
 }

diff --git a/src/test/java/de/juplo/kafka/chat/backend/TestClient.java b/src/test/java/de/juplo/kafka/chat/backend/TestClient.java
index f384f7e..5dde998 100644 (file)
--- a/src/test/java/de/juplo/kafka/chat/backend/TestClient.java
+++ b/src/test/java/de/juplo/kafka/chat/backend/TestClient.java
@@ -2,89 +2,34 @@ package de.juplo.kafka.chat.backend;
 
 import de.juplo.kafka.chat.backend.api.ChatRoomInfoTo;
 import de.juplo.kafka.chat.backend.api.MessageTo;
-import lombok.EqualsAndHashCode;
-import lombok.Getter;
-import lombok.Setter;
-import lombok.ToString;
 import lombok.extern.slf4j.Slf4j;
-import org.awaitility.Awaitility;
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Test;
-import org.springframework.core.ParameterizedTypeReference;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
-import org.springframework.http.codec.ServerSentEvent;
 import org.springframework.web.reactive.function.client.WebClient;
-import org.testcontainers.containers.BindMode;
-import org.testcontainers.containers.GenericContainer;
-import org.testcontainers.containers.Network;
-import org.testcontainers.containers.output.Slf4jLogConsumer;
-import org.testcontainers.containers.wait.strategy.Wait;
-import org.testcontainers.images.ImagePullPolicy;
-import org.testcontainers.junit.jupiter.Testcontainers;
-import org.testcontainers.utility.DockerImageName;
-import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 import reactor.util.retry.Retry;
 
-import java.io.IOException;
 import java.time.Duration;
 import java.util.stream.IntStream;
 
 
-@Testcontainers
 @Slf4j
-public abstract class AbstractHandoverIT
+public class TestClient
 {
-  static final ImagePullPolicy NEVER_PULL = imageName -> false;
-  static final ParameterizedTypeReference<ServerSentEvent<String>> SSE_TYPE = new ParameterizedTypeReference<>() {};
-
-
-  @Test
-  void test() throws InterruptedException
+  public void run()
   {
-    ChatRoomInfoTo chatRoom = createChatRoom("bar").block();
-    User user = new User("nerd");
     IntStream
         .rangeClosed(1,100)
-        .mapToObj(i ->sendMessage(chatRoom, user, "Message #" + i))
+        .mapToObj(i ->sendMessage(chatRoom, "Message #" + i))
         .map(result -> result
             .map(MessageTo::toString)
             .retryWhen(Retry.fixedDelay(10, Duration.ofSeconds(1)))
             .block())
         .forEach(result -> log.info("{}", result));
-
-    receiveMessages(chatRoom)
-        .take(100)
-        .doOnNext(message -> log.info("message: {}", message))
-        .then()
-        .block();
   }
 
-  Mono<ChatRoomInfoTo> createChatRoom(String name)
-  {
-    return webClient
-        .post()
-        .uri("/create")
-        .contentType(MediaType.TEXT_PLAIN)
-        .bodyValue(name)
-        .accept(MediaType.APPLICATION_JSON)
-        .exchangeToMono(response ->
-        {
-          if (response.statusCode().equals(HttpStatus.OK))
-          {
-            return response.bodyToMono(ChatRoomInfoTo.class);
-          }
-          else
-          {
-            return response.createError();
-          }
-        });
-  }
-
-  Mono<MessageTo> sendMessage(
+  private Mono<MessageTo> sendMessage(
       ChatRoomInfoTo chatRoom,
-      User user,
       String message)
   {
     return webClient
@@ -110,165 +55,16 @@ public abstract class AbstractHandoverIT
         });
   }
 
-  Flux<ServerSentEvent<String>> receiveMessages(ChatRoomInfoTo chatRoom)
-  {
-    return webClient
-        .get()
-        .uri(
-            "/{chatRoomId}/listen",
-            chatRoom.getId())
-        .accept(MediaType.TEXT_EVENT_STREAM)
-        .retrieve()
-        .bodyToFlux(SSE_TYPE);
-  }
-
-
-  WebClient webClient;
 
+  private final WebClient webClient;
+  private final ChatRoomInfoTo chatRoom;
+  private final User user;
 
-  abstract void setUpExtra() throws IOException, InterruptedException;
 
-  @BeforeEach
-  void setUp() throws Exception
+  TestClient(Integer port, ChatRoomInfoTo chatRoom, String username)
   {
-    setUpExtra();
-    haproxy.start();
-    backend1.start();
-    // backend2.start();
-    // backend3.start();
-
-    Integer port = haproxy.getMappedPort(8400);
     webClient = WebClient.create("http://localhost:" + port);
-
-    Awaitility
-        .await()
-        .atMost(Duration.ofMinutes(10))
-        .until(() -> WebClient
-            .create("http://localhost:" + backend1.getMappedPort(8080))
-            .get()
-            .uri("/actuator/health")
-            .exchangeToMono(response ->
-            {
-              if (response.statusCode().equals(HttpStatus.OK))
-              {
-                return response
-                    .bodyToMono(StatusTo.class)
-                    .map(StatusTo::getStatus)
-                    .map(status -> status.equalsIgnoreCase("UP"));
-              }
-              else
-              {
-                return Mono.just(false);
-              }
-            })
-            .block());
-
-    haproxy
-        .getDockerClient()
-        .killContainerCmd(haproxy.getContainerId())
-        .withSignal("HUP")
-        .exec();
-
-
-    Awaitility
-        .await()
-        .atMost(Duration.ofMinutes(10))
-        .until(() -> webClient
-            .get()
-            .uri("/actuator/health")
-            .exchangeToMono(response ->
-            {
-              if (response.statusCode().equals(HttpStatus.OK))
-              {
-                return response
-                    .bodyToMono(StatusTo.class)
-                    .map(StatusTo::getStatus)
-                    .map(status -> status.equalsIgnoreCase("UP"));
-              }
-              else
-              {
-                return Mono.just(false);
-              }
-            })
-            .block());
-  }
-
-  Network network = Network.newNetwork();
-
-  GenericContainer haproxy =
-      new GenericContainer(DockerImageName.parse("haproxytech/haproxy-debian:2.8"))
-          .withNetwork(network)
-          .withNetworkAliases("haproxy")
-          .withClasspathResourceMapping(
-              "haproxy.cfg",
-              "/usr/local/etc/haproxy/haproxy.cfg",
-              BindMode.READ_ONLY)
-          .withClasspathResourceMapping(
-              "sharding.map",
-              "/usr/local/etc/haproxy/sharding.map",
-              BindMode.READ_WRITE)
-          .withExposedPorts(8400, 8401, 8404)
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("HAPROXY"));
-
-  abstract String[] getCommandBackend1();
-  GenericContainer backend1 =
-      new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
-          .withImagePullPolicy(NEVER_PULL)
-          .withNetwork(network)
-          .withNetworkAliases("backend-1")
-          .withCommand(getCommandBackend1())
-          .withExposedPorts(8080)
-          .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-1"));
-
-  abstract String[] getCommandBackend2();
-  GenericContainer backend2 =
-      new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
-          .withImagePullPolicy(NEVER_PULL)
-          .withNetwork(network)
-          .withNetworkAliases("backend-2")
-          .withCommand(getCommandBackend2())
-          .withExposedPorts(8080)
-          .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-2"));
-
-  abstract String[] getCommandBackend3();
-  GenericContainer backend3 =
-      new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
-          .withImagePullPolicy(NEVER_PULL)
-          .withNetwork(network)
-          .withNetworkAliases("backend-3")
-          .withCommand(getCommandBackend3())
-          .withExposedPorts(8080)
-          .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-3"));
-
-
-  @EqualsAndHashCode
-  @ToString
-  class User
-  {
-    @Getter
-    private final String name;
-    private int serial = 0;
-
-
-    User (String name)
-    {
-      this.name = name;
-    }
-
-
-    int nextSerial()
-    {
-      return ++serial;
-    }
-  }
-
-  @Getter
-  @Setter
-  static class StatusTo
-  {
-    String status;
+    this.chatRoom = chatRoom;
+    user = new User(username);
   }
 }

diff --git a/src/test/java/de/juplo/kafka/chat/backend/User.java b/src/test/java/de/juplo/kafka/chat/backend/User.java
index f384f7e..e708c9b 100644 (file)
--- a/src/test/java/de/juplo/kafka/chat/backend/User.java
+++ b/src/test/java/de/juplo/kafka/chat/backend/User.java
@@ -1,274 +1,27 @@
 package de.juplo.kafka.chat.backend;
 
-import de.juplo.kafka.chat.backend.api.ChatRoomInfoTo;
-import de.juplo.kafka.chat.backend.api.MessageTo;
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
-import lombok.Setter;
 import lombok.ToString;
-import lombok.extern.slf4j.Slf4j;
-import org.awaitility.Awaitility;
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Test;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.MediaType;
-import org.springframework.http.codec.ServerSentEvent;
-import org.springframework.web.reactive.function.client.WebClient;
-import org.testcontainers.containers.BindMode;
-import org.testcontainers.containers.GenericContainer;
-import org.testcontainers.containers.Network;
-import org.testcontainers.containers.output.Slf4jLogConsumer;
-import org.testcontainers.containers.wait.strategy.Wait;
-import org.testcontainers.images.ImagePullPolicy;
-import org.testcontainers.junit.jupiter.Testcontainers;
-import org.testcontainers.utility.DockerImageName;
-import reactor.core.publisher.Flux;
-import reactor.core.publisher.Mono;
-import reactor.util.retry.Retry;
 
-import java.io.IOException;
-import java.time.Duration;
-import java.util.stream.IntStream;
 
-
-@Testcontainers
-@Slf4j
-public abstract class AbstractHandoverIT
+@EqualsAndHashCode
+@ToString
+class User
 {
-  static final ImagePullPolicy NEVER_PULL = imageName -> false;
-  static final ParameterizedTypeReference<ServerSentEvent<String>> SSE_TYPE = new ParameterizedTypeReference<>() {};
-
-
-  @Test
-  void test() throws InterruptedException
-  {
-    ChatRoomInfoTo chatRoom = createChatRoom("bar").block();
-    User user = new User("nerd");
-    IntStream
-        .rangeClosed(1,100)
-        .mapToObj(i ->sendMessage(chatRoom, user, "Message #" + i))
-        .map(result -> result
-            .map(MessageTo::toString)
-            .retryWhen(Retry.fixedDelay(10, Duration.ofSeconds(1)))
-            .block())
-        .forEach(result -> log.info("{}", result));
-
-    receiveMessages(chatRoom)
-        .take(100)
-        .doOnNext(message -> log.info("message: {}", message))
-        .then()
-        .block();
-  }
+  @Getter
+  private final String name;
+  private int serial = 0;
 
-  Mono<ChatRoomInfoTo> createChatRoom(String name)
-  {
-    return webClient
-        .post()
-        .uri("/create")
-        .contentType(MediaType.TEXT_PLAIN)
-        .bodyValue(name)
-        .accept(MediaType.APPLICATION_JSON)
-        .exchangeToMono(response ->
-        {
-          if (response.statusCode().equals(HttpStatus.OK))
-          {
-            return response.bodyToMono(ChatRoomInfoTo.class);
-          }
-          else
-          {
-            return response.createError();
-          }
-        });
-  }
 
-  Mono<MessageTo> sendMessage(
-      ChatRoomInfoTo chatRoom,
-      User user,
-      String message)
+  User (String name)
   {
-    return webClient
-        .put()
-        .uri(
-            "/{chatRoomId}/{username}/{serial}",
-            chatRoom.getId(),
-            user.getName(),
-            user.nextSerial())
-        .contentType(MediaType.TEXT_PLAIN)
-        .accept(MediaType.APPLICATION_JSON)
-        .bodyValue(message)
-        .exchangeToMono(response ->
-        {
-          if (response.statusCode().equals(HttpStatus.OK))
-          {
-            return response.bodyToMono(MessageTo.class);
-          }
-          else
-          {
-            return response.createError();
-          }
-        });
+    this.name = name;
   }
 
-  Flux<ServerSentEvent<String>> receiveMessages(ChatRoomInfoTo chatRoom)
-  {
-    return webClient
-        .get()
-        .uri(
-            "/{chatRoomId}/listen",
-            chatRoom.getId())
-        .accept(MediaType.TEXT_EVENT_STREAM)
-        .retrieve()
-        .bodyToFlux(SSE_TYPE);
-  }
-
-
-  WebClient webClient;
-
-
-  abstract void setUpExtra() throws IOException, InterruptedException;
-
-  @BeforeEach
-  void setUp() throws Exception
-  {
-    setUpExtra();
-    haproxy.start();
-    backend1.start();
-    // backend2.start();
-    // backend3.start();
-
-    Integer port = haproxy.getMappedPort(8400);
-    webClient = WebClient.create("http://localhost:" + port);
-
-    Awaitility
-        .await()
-        .atMost(Duration.ofMinutes(10))
-        .until(() -> WebClient
-            .create("http://localhost:" + backend1.getMappedPort(8080))
-            .get()
-            .uri("/actuator/health")
-            .exchangeToMono(response ->
-            {
-              if (response.statusCode().equals(HttpStatus.OK))
-              {
-                return response
-                    .bodyToMono(StatusTo.class)
-                    .map(StatusTo::getStatus)
-                    .map(status -> status.equalsIgnoreCase("UP"));
-              }
-              else
-              {
-                return Mono.just(false);
-              }
-            })
-            .block());
 
-    haproxy
-        .getDockerClient()
-        .killContainerCmd(haproxy.getContainerId())
-        .withSignal("HUP")
-        .exec();
-
-
-    Awaitility
-        .await()
-        .atMost(Duration.ofMinutes(10))
-        .until(() -> webClient
-            .get()
-            .uri("/actuator/health")
-            .exchangeToMono(response ->
-            {
-              if (response.statusCode().equals(HttpStatus.OK))
-              {
-                return response
-                    .bodyToMono(StatusTo.class)
-                    .map(StatusTo::getStatus)
-                    .map(status -> status.equalsIgnoreCase("UP"));
-              }
-              else
-              {
-                return Mono.just(false);
-              }
-            })
-            .block());
-  }
-
-  Network network = Network.newNetwork();
-
-  GenericContainer haproxy =
-      new GenericContainer(DockerImageName.parse("haproxytech/haproxy-debian:2.8"))
-          .withNetwork(network)
-          .withNetworkAliases("haproxy")
-          .withClasspathResourceMapping(
-              "haproxy.cfg",
-              "/usr/local/etc/haproxy/haproxy.cfg",
-              BindMode.READ_ONLY)
-          .withClasspathResourceMapping(
-              "sharding.map",
-              "/usr/local/etc/haproxy/sharding.map",
-              BindMode.READ_WRITE)
-          .withExposedPorts(8400, 8401, 8404)
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("HAPROXY"));
-
-  abstract String[] getCommandBackend1();
-  GenericContainer backend1 =
-      new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
-          .withImagePullPolicy(NEVER_PULL)
-          .withNetwork(network)
-          .withNetworkAliases("backend-1")
-          .withCommand(getCommandBackend1())
-          .withExposedPorts(8080)
-          .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-1"));
-
-  abstract String[] getCommandBackend2();
-  GenericContainer backend2 =
-      new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
-          .withImagePullPolicy(NEVER_PULL)
-          .withNetwork(network)
-          .withNetworkAliases("backend-2")
-          .withCommand(getCommandBackend2())
-          .withExposedPorts(8080)
-          .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-2"));
-
-  abstract String[] getCommandBackend3();
-  GenericContainer backend3 =
-      new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
-          .withImagePullPolicy(NEVER_PULL)
-          .withNetwork(network)
-          .withNetworkAliases("backend-3")
-          .withCommand(getCommandBackend3())
-          .withExposedPorts(8080)
-          .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
-          .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-3"));
-
-
-  @EqualsAndHashCode
-  @ToString
-  class User
-  {
-    @Getter
-    private final String name;
-    private int serial = 0;
-
-
-    User (String name)
-    {
-      this.name = name;
-    }
-
-
-    int nextSerial()
-    {
-      return ++serial;
-    }
-  }
-
-  @Getter
-  @Setter
-  static class StatusTo
+  int nextSerial()
   {
-    String status;
+    return ++serial;
   }
 }