WIP:test: HandoverIT-POC - Clients are stopped after some time

[demos/kafka/chat] / src / test / java / de / juplo / kafka / chat / backend / AbstractHandoverIT.java

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 fc54c03..7ab65f6 100644 (file)
--- a/src/test/java/de/juplo/kafka/chat/backend/AbstractHandoverIT.java
+++ b/src/test/java/de/juplo/kafka/chat/backend/AbstractHandoverIT.java
@@ -1,25 +1,21 @@
 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.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.images.ImagePullPolicy;
 import org.testcontainers.junit.jupiter.Testcontainers;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
-import reactor.util.retry.Retry;
 
-import java.time.Duration;
+import java.util.Arrays;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
 import java.util.stream.IntStream;
 
 
@@ -27,26 +23,49 @@ import java.util.stream.IntStream;
 @Slf4j
 public abstract class AbstractHandoverIT
 {
-  static final ImagePullPolicy NEVER_PULL = imageName -> false;
   static final ParameterizedTypeReference<ServerSentEvent<String>> SSE_TYPE = new ParameterizedTypeReference<>() {};
+  static final int NUM_CHATROOMS = 23;
+  static final int NUM_CLIENTS = 17;
+
+
+  private final AbstractHandoverITContainers containers;
+  private final ExecutorService executorService = Executors.newFixedThreadPool(NUM_CLIENTS);
+
+
+  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));
-
-    receiveMessages(chatRoom)
-        .take(100)
+    ChatRoomInfoTo[] chatRooms = Flux
+        .range(0, NUM_CHATROOMS)
+        .flatMap(i -> createChatRoom("room-" + i))
+        .toStream()
+        .toArray(size -> new ChatRoomInfoTo[size]);
+
+    TestClient[] testClients = Flux
+        .fromStream(IntStream.range(0, NUM_CLIENTS).mapToObj(i -> "user-" + Integer.toString(i)))
+        .map(i -> new TestClient(
+            containers.haproxy.getMappedPort(8400),
+            chatRooms,
+            i))
+        .doOnNext(testClient -> executorService.execute(testClient))
+        .toStream()
+        .toArray(size -> new TestClient[size]);
+
+    Thread.sleep(2000);
+
+    Arrays
+        .stream(testClients)
+        .forEach(testClient -> testClient.running = false);
+
+    Flux
+        .fromArray(chatRooms)
+        .flatMap(chatRoom ->receiveMessages(chatRoom).take(50))
         .doOnNext(message -> log.info("message: {}", message))
         .then()
         .block();
@@ -73,34 +92,6 @@ 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
@@ -116,32 +107,12 @@ public abstract class AbstractHandoverIT
 
   WebClient webClient;
 
-
-  @EqualsAndHashCode
-  @ToString
-  class User
+  @BeforeEach
+  void setUp() throws Exception
   {
-    @Getter
-    private final String name;
-    private int serial = 0;
-
-
-    User (String name)
-    {
-      this.name = name;
-    }
-
+    containers.setUp();
 
-    int nextSerial()
-    {
-      return ++serial;
-    }
-  }
-
-  @Getter
-  @Setter
-  static class StatusTo
-  {
-    String status;
+    Integer port = containers.haproxy.getMappedPort(8400);
+    webClient = WebClient.create("http://localhost:" + port);
   }
 }