WIP:test: `*ConfigurationIT` asserts, if restored messages can be seen

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

diff --git a/src/test/java/de/juplo/kafka/chat/backend/TestListener.java b/src/test/java/de/juplo/kafka/chat/backend/TestListener.java
index e58cb2b..3f7fb9d 100644 (file)
--- a/src/test/java/de/juplo/kafka/chat/backend/TestListener.java
+++ b/src/test/java/de/juplo/kafka/chat/backend/TestListener.java
@@ -12,7 +12,9 @@ import org.springframework.http.codec.ServerSentEvent;
 import org.springframework.web.reactive.function.client.WebClient;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
+import reactor.util.retry.Retry;
 
+import java.time.Duration;
 import java.util.*;
 
 
@@ -28,28 +30,35 @@ public class TestListener
         .fromArray(chatRooms)
         .flatMap(chatRoom ->
         {
-          log.info("Requesting messages for chat-room {}", chatRoom);
           List<MessageTo> list = new LinkedList<>();
           receivedMessages.put(chatRoom.getId(), list);
-          return receiveMessages(chatRoom)
-              .flatMap(sse ->
-              {
-                try
-                {
-                  return Mono.just(objectMapper.readValue(sse.data(), MessageTo.class));
-                }
-                catch (Exception e)
-                {
-                  return Mono.error(e);
-                }
-              })
-              .doOnNext(message -> list.add(message))
-              .doOnComplete(() -> log.info("{} was completed!", chatRoom))
-              .doOnError(throwalbe -> log.error("{} failed: {}", chatRoom, throwalbe));
+          return receiveMessages(chatRoom);
         });
   }
 
-  Flux<ServerSentEvent<String>> receiveMessages(ChatRoomInfoTo chatRoom)
+  Flux<MessageTo> receiveMessages(ChatRoomInfoTo chatRoom)
+  {
+    log.info("Requesting messages for chat-room {}", chatRoom);
+    List<MessageTo> list = receivedMessages.get(chatRoom.getId());
+    return receiveServerSentEvents(chatRoom)
+        .flatMap(sse ->
+        {
+          try
+          {
+            return Mono.just(objectMapper.readValue(sse.data(), MessageTo.class));
+          }
+          catch (Exception e)
+          {
+            return Mono.error(e);
+          }
+        })
+        .doOnNext(message -> list.add(message))
+        .doOnComplete(() -> log.info("{} was completed!", chatRoom))
+        .doOnError(throwalbe -> log.error("{} failed: {}", chatRoom, throwalbe))
+        .thenMany(Flux.defer(() -> receiveMessages(chatRoom)));
+  }
+
+  Flux<ServerSentEvent<String>> receiveServerSentEvents(ChatRoomInfoTo chatRoom)
   {
     return webClient
         .get()
@@ -58,7 +67,8 @@ public class TestListener
             chatRoom.getId())
         .accept(MediaType.TEXT_EVENT_STREAM)
         .retrieve()
-        .bodyToFlux(SSE_TYPE);
+        .bodyToFlux(SSE_TYPE)
+        .retryWhen(Retry.fixedDelay(15, Duration.ofSeconds(1)));
   }