test: 서비스, 레포지토리, 컨트롤러 및 통합 테스트 추가

Author: k01zero

build.gradle

@@ -62,6 +62,9 @@ dependencies {
     // Spring Boot Test 의존성
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
 
+    // Mockito 의존성
+    implementation "org.mockito:mockito-core:4.6.1"
+
     // JUnit 플랫폼 런처 (JUnit 테스트 실행)
     testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
 

error-log/stub 인수 불일치 문제.md

@@ -5,7 +5,6 @@
 import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
 
 @SpringBootApplication
-@EnableJpaAuditing
 public class DiscodeitApplication {
 
   public static void main(String[] args) {

src/main/java/com/sprint/mission/discodeit/DiscodeitApplication.java

@@ -0,0 +1,10 @@
+package com.sprint.mission.discodeit.config;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
+
+@Configuration
+@EnableJpaAuditing // @WebMvcTest 와의 충돌을 고려해 분리
+public class JpaConfig {
+
+}

src/main/java/com/sprint/mission/discodeit/config/JpaConfig.java

@@ -36,7 +36,7 @@ public ResponseEntity<UserDto> createUser(
     /* 유저 생성 요청(Request) */
     log.info("유저 생성 요청(Request): username={}, hasProfileImage={}",
         userCreateRequest.username(),
-        !file.isEmpty());
+        file != null);
 
     // 프로필 이미지 처리 
     /* TODO(멘토님께) : 삼항 연산자를 쓰면 가독성이 떨어진다는 이야기를 들었는데,

src/main/java/com/sprint/mission/discodeit/controller/UserController.java

@@ -53,7 +53,7 @@ public ChannelDto createPublicChannel(ChannelPublicRequest request) {
         .name(request.name())
         .description(request.description())
         .build();
-    channelRepository.save(channel);
+    channel = channelRepository.save(channel);
 
     log.info("공개 채널 생성 성공: channelName={}, createdAt={}",
         channel.getName(),
@@ -68,7 +68,8 @@ public ChannelDto createPrivateChannel(ChannelPrivateRequest request) {
     Channel channel = Channel.builder()
         .type(ChannelType.PRIVATE)
         .build();
-    channelRepository.save(channel);
+    Channel savedChannel = channelRepository.save(channel);
+    log.info("채널 저장 성공, ID: {}", savedChannel.getId());
 
     request.participantIds().stream()
         .map(userId -> ReadStatus.builder()
@@ -77,22 +78,25 @@ public ChannelDto createPrivateChannel(ChannelPrivateRequest request) {
               log.error("비공개 채널 생성 단계에서 유저를 찾지 못함: userId={}", userId);
               return new UserNotFoundException(Map.of("UserId", userId));
             }))
-            .channel(channelRepository.findById(channel.getId()).orElseThrow(
+            .channel(channelRepository.findById(savedChannel.getId()).orElseThrow(
                 () -> {
-                  log.error("비공개 채널을 찾지 못함: privateChannelId={}", channel.getId());
-                  return new ChannelNotFoundException(Map.of("channelId", channel.getId()));
+                  log.error("비공개 채널을 찾지 못함: privateChannelId={}", savedChannel.getId());
+                  return new ChannelNotFoundException(Map.of("channelId", savedChannel.getId()));
                 }))
-            .lastReadAt(channel.getCreatedAt())
+            .lastReadAt(savedChannel.getCreatedAt())
             .build()
         )
         .forEach(readStatusRepository::save);
 
     log.info("비공개 채널 생성 성공");
-    return channelMapper.toDto(channel);
+    return channelMapper.toDto(savedChannel);
   }
 
   @Override
   public List<ChannelDto> findAllByUserId(UUID userId) {
+    userRepository.findById(userId).orElseThrow(() -> {
+      return new UserNotFoundException(Map.of("userId", userId));
+    });
     List<Channel> channels = readStatusService.findAllReadStatusEntitiesByUserId(userId).stream()
         .map(ReadStatus::getChannel)
         .toList();
@@ -127,10 +131,14 @@ public ChannelDto updateChannel(UUID id, ChannelUpdateRequest request) {
       throw new ChannelModificationNotAllowedException(Map.of("privateChannelId", id));
     } // 전역 400
 
-    channel.updateName(request.newName());
-    channel.updateDescription(request.newDescription());
-    // 수정 시간 업데이트
-    channel.refreshUpdateAt();
+    if (request.newName() != null) {
+      channel.updateName(request.newName());
+      channel.refreshUpdateAt();
+    }
+    if (request.newDescription() != null) {
+      channel.updateDescription(request.newDescription());
+      channel.refreshUpdateAt();
+    }
 
     log.info("채널 수정 시도 성공: channelName={}, updatedAt={}",
         channel.getName(),

src/main/java/com/sprint/mission/discodeit/service/basic/BasicChannelService.java

@@ -101,6 +101,10 @@ public MessageDto createMessage(MessageCreateRequest messageCreateRequest,
   public PageResponse<MessageDto> findAllByChannelId(UUID channelId, Pageable pageable) {
     // 왜 이렇게 변환하는거지 (이해가 필요...)
 
+    channelRepository.findById(channelId).orElseThrow(() -> {
+      return new ChannelNotFoundException(Map.of("channelId", channelId));
+    });
+
     // 페이징된 데이터 조회
     Page<Message> messagePage = messageRepository.findByChannelId(channelId, pageable);
 

src/main/java/com/sprint/mission/discodeit/service/basic/BasicMessageService.java

@@ -0,0 +1,28 @@
+spring:
+  datasource:
+    url: jdbc:h2:mem:devDB;MODE=PostgreSQL # PostgreSQL 호환 모드 추가
+    username: devUser
+    password: devPass
+    driver-class-name: org.h2.Driver  # 명시적으로 드라이버 클래스 지정
+  h2:
+    console:
+      enabled: true # H2 콘솔 활성화
+      path: /h2-console
+  sql:
+    init:
+      mode: always # Spring Boot DB 테이블 만들기
+  jpa:
+    hibernate:
+      ddl-auto: none
+    properties:
+      hibernate:
+        highlight_sql: true # 텍스트에 컬러 입히기
+        format_sql: true # sql 포맷을 깔끔하게
+
+logging:
+  level:
+    root: INFO
+    org.hibernate.SQL: DEBUG # Hibernate SQL 쿼리 로그만 DEBUG 활성화, Logger 로 출력
+    org.hibernate.orm.jdbc.bind: TRACE # 바인딩된 파라미터 표시 로그
+server:
+  port: 8080

src/main/resources/application-test.yaml

@@ -3,7 +3,7 @@ spring:
     name: discodeit
 
   profiles:
-    active: prod
+    active: test
 
   jpa:
     show-sql: true
@@ -48,8 +48,8 @@ info:
     spring-boot-version: 3.4.0
 
   datasource:
-    url: jdbc:postgresql://localhost:5432/discodeit
-    driver-class-name: org.postgresql.Driver
+    url: jdbc:h2:mem:devDB;MODE=PostgreSQL
+    driver-class-name: org.h2.Driver
 
   jpa:
     ddl-auto: validate