feat: NewsRequestDto에 생성자 추가 + 테스트케이스 작성

Author: dohy-eon

src/main/java/dmu/dasom/api/domain/news/dto/NewsRequestDto.java

@@ -3,9 +3,13 @@
 import io.swagger.v3.oas.annotations.media.Schema;
 import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.Size;
+import lombok.AllArgsConstructor;
 import lombok.Getter;
+import lombok.NoArgsConstructor;
 
 @Getter
+@NoArgsConstructor
+@AllArgsConstructor
 @Schema(name = "NewsRequestDto", description = "뉴스 생성 요청 DTO")
 public class NewsRequestDto {
 

src/test/java/dmu/dasom/api/domain/news/NewsServiceTest.java

@@ -0,0 +1,114 @@
+package dmu.dasom.api.domain.news;
+
+import dmu.dasom.api.domain.news.dto.NewsRequestDto;
+import dmu.dasom.api.domain.news.dto.NewsResponseDto;
+import dmu.dasom.api.domain.news.entity.NewsEntity;
+import dmu.dasom.api.domain.news.repository.NewsRepository;
+import dmu.dasom.api.domain.news.service.NewsService;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import java.util.List;
+import java.util.Optional;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.Mockito.*;
+
+@ExtendWith(MockitoExtension.class)
+class NewsServiceTest {
+
+    @Mock
+    private NewsRepository newsRepository;
+
+    @InjectMocks
+    private NewsService newsService;
+
+    @Test
+    @DisplayName("뉴스 전체 조회 테스트")
+    void getAllNews() {
+        // Given
+        NewsEntity news1 = NewsEntity.builder().id(1L).title("뉴스1").content("내용1").imageUrl("url1").build();
+        NewsEntity news2 = NewsEntity.builder().id(2L).title("뉴스2").content("내용2").imageUrl("url2").build();
+
+        when(newsRepository.findAll()).thenReturn(List.of(news1, news2));
+
+        // When
+        List<NewsResponseDto> newsList = newsService.getAllNews();
+
+        // Then
+        assertThat(newsList).hasSize(2);
+        assertThat(newsList.get(0).getTitle()).isEqualTo("뉴스1");
+        verify(newsRepository, times(1)).findAll();
+    }
+
+    @Test
+    @DisplayName("뉴스 개별 조회 - 성공")
+    void getNewsById_Success() {
+        // Given
+        Long id = 1L;
+        NewsEntity news = NewsEntity.builder().id(id).title("뉴스1").content("내용1").imageUrl("url1").build();
+
+        when(newsRepository.findById(id)).thenReturn(Optional.of(news));
+
+        // When
+        NewsResponseDto responseDto = newsService.getNewsById(id);
+
+        // Then
+        assertThat(responseDto.getId()).isEqualTo(id);
+        assertThat(responseDto.getTitle()).isEqualTo("뉴스1");
+        verify(newsRepository, times(1)).findById(id);
+    }
+
+    @Test
+    @DisplayName("뉴스 개별 조회 - 실패 (존재하지 않는 ID)")
+    void getNewsById_NotFound() {
+        // Given
+        Long id = 999L;
+
+        when(newsRepository.findById(id)).thenReturn(Optional.empty());
+
+        // When & Then
+        Exception exception = assertThrows(IllegalArgumentException.class, () -> newsService.getNewsById(id));
+        assertThat(exception.getMessage()).isEqualTo("해당 뉴스가 존재하지 않습니다. ID: " + id);
+        verify(newsRepository, times(1)).findById(id);
+    }
+
+    @Test
+    @DisplayName("뉴스 생성 테스트")
+    void createNews() {
+        // Given
+        NewsRequestDto requestDto = new NewsRequestDto("새 뉴스", "새 내용", "새 이미지");
+
+        NewsEntity news = NewsEntity.builder()
+                .title(requestDto.getTitle())
+                .content(requestDto.getContent())
+                .imageUrl(requestDto.getImageUrl())
+                .build();
+
+        NewsEntity savedNews = NewsEntity.builder()
+                .id(1L)
+                .title(news.getTitle())
+                .content(news.getContent())
+                .imageUrl(news.getImageUrl())
+                .build();
+
+        when(newsRepository.save(any(NewsEntity.class))).thenReturn(savedNews);
+
+        // When
+        NewsResponseDto responseDto = newsService.createNews(requestDto);
+
+        // Then
+        assertThat(responseDto.getId()).isEqualTo(1L); // 저장된 뉴스의 ID 할당확인
+        assertThat(responseDto.getTitle()).isEqualTo("새 뉴스");
+        assertThat(responseDto.getContent()).isEqualTo("새 내용");
+        assertThat(responseDto.getImageUrl()).isEqualTo("새 이미지");
+
+        verify(newsRepository, times(1)).save(any(NewsEntity.class)); // save() 호출 검증
+    }
+
+}