modify: 코드래빗 리뷰 반영

Author: ooheunda

src/repositories/__test__/leaderboard.repo.integration.test.ts

@@ -72,14 +72,10 @@ describe('LeaderboardRepository 통합 테스트', () => {
 
   afterAll(async () => {
     try {
-      // 모든 쿼리 완료 대기
-      await new Promise((resolve) => setTimeout(resolve, 500));
+      jest.clearAllMocks();
 
       // 풀 완전 종료
-      if (testPool) {
-        // 강제 종료: 모든 활성 쿼리와 연결 중지
-        await testPool.end();
-      }
+      await testPool.end();
 
       logger.info('LeaderboardRepository 통합 테스트 DB 연결 종료');
     } catch (error) {

src/repositories/leaderboard.repository.ts

@@ -52,8 +52,8 @@ export class LeaderboardRepository {
           p.released_at,
           COALESCE(ts.today_view, 0)::int AS total_views,
           COALESCE(ts.today_like, 0)::int AS total_likes,
-          COALESCE(ts.today_view, 0) - COALESCE(ss.start_view, COALESCE(ts.today_view, 0))::int AS view_diff,
-          COALESCE(ts.today_like, 0) - COALESCE(ss.start_like, COALESCE(ts.today_like, 0))::int AS like_diff
+          (COALESCE(ts.today_view, 0) - COALESCE(ss.start_view, COALESCE(ts.today_view, 0)))::int AS view_diff,
+          (COALESCE(ts.today_like, 0) - COALESCE(ss.start_like, COALESCE(ts.today_like, 0)))::int AS like_diff
         FROM posts_post p
         LEFT JOIN today_stats ts ON ts.post_id = p.id
         LEFT JOIN start_stats ss ON ss.post_id = p.id