juplo.de Git - demos/kafka/chat/blob - src/test/java/de/juplo/kafka/chat/backend/domain/ChatHomeWithShardsTest.java

   1 package de.juplo.kafka.chat.backend.domain;
   2
   3 import de.juplo.kafka.chat.backend.domain.exceptions.LoadInProgressException;
   4 import de.juplo.kafka.chat.backend.domain.exceptions.ShardNotOwnedException;
   5 import org.junit.jupiter.api.DisplayName;
   6 import org.junit.jupiter.api.Test;
   7 import reactor.core.publisher.Mono;
   8 import reactor.util.retry.Retry;
   9
  10 import java.time.Duration;
  11 import java.util.UUID;
  12
  13 import static pl.rzrz.assertj.reactor.Assertions.assertThat;
  14
  15
  16 public abstract class ChatHomeWithShardsTest extends ChatHomeTest
  17 {
  18   public static final int NUM_SHARDS = 10;
  19   public static final int OWNED_SHARD = 2;
  20   public static final int NOT_OWNED_SHARD = 0;
  21
  22
  23   @Test
  24   @DisplayName("Assert ShardNotOwnedException is thrown, if the shard for the chatroom is not owned")
  25   void testGetChatroomForNotOwnedShard()
  26   {
  27     // Given
  28     UUID chatRoomId = UUID.fromString("4e7246a6-29ae-43ea-b56f-669c3481ac19");
  29
  30     // When
  31     Mono<ChatRoomData> mono = Mono
  32         .defer(() -> chatHome.getChatRoomData(chatRoomId))
  33         .log("testGetChatroomForNotOwnedShard")
  34         .retryWhen(Retry
  35             .backoff(5, Duration.ofSeconds(1))
  36             .filter(throwable -> throwable instanceof LoadInProgressException));
  37
  38     // Then
  39     assertThat(mono).sendsError(e ->
  40     {
  41       assertThat(e).isInstanceOf(ShardNotOwnedException.class);
  42       ShardNotOwnedException shardNotOwnedException = (ShardNotOwnedException) e;
  43       assertThat(shardNotOwnedException.getShard()).isEqualTo(NOT_OWNED_SHARD);
  44     });
  45   }
  46 }