test: 내림차순 정렬 검증이 비결정적일 수 있는 문제 수정

Author: Hexeong

src/main/java/com/example/solidconnection/common/BaseEntity.java

@@ -8,6 +8,8 @@
 import jakarta.persistence.PrePersist;
 import jakarta.persistence.PreUpdate;
 import java.time.ZonedDateTime;
+import java.time.temporal.ChronoUnit;
+
 import lombok.Getter;
 import org.hibernate.annotations.DynamicInsert;
 import org.hibernate.annotations.DynamicUpdate;
@@ -33,4 +35,8 @@ public void onPrePersist() {
     public void onPreUpdate() {
         this.updatedAt = ZonedDateTime.now(UTC).truncatedTo(MICROS);
     }
+
+    public void setCreatedAt(ZonedDateTime createdAt) {
+        this.createdAt = createdAt.truncatedTo(ChronoUnit.MICROS);
+    }
 }

src/test/java/com/example/solidconnection/community/post/fixture/PostFixture.java

@@ -47,4 +47,25 @@ public class PostFixture {
                 .siteUser(siteUser)
                 .create();
     }
+
+    public Post 게시글_특정_시간_이후로_저장(
+            String title,
+            String content,
+            Boolean isQuestion,
+            PostCategory postCategory,
+            Board board,
+            SiteUser siteUser,
+            int time
+    ) {
+        return postFixtureBuilder
+                .title(title)
+                .content(content)
+                .isQuestion(isQuestion)
+                .likeCount(0L)
+                .viewCount(0L)
+                .postCategory(postCategory)
+                .board(board)
+                .siteUser(siteUser)
+                .createAfterCertainTime(time);
+    }
 }

src/test/java/com/example/solidconnection/community/post/fixture/PostFixtureBuilder.java

@@ -8,6 +8,9 @@
 import lombok.RequiredArgsConstructor;
 import org.springframework.boot.test.context.TestComponent;
 
+import java.time.ZoneOffset;
+import java.time.ZonedDateTime;
+
 @TestComponent
 @RequiredArgsConstructor
 public class PostFixtureBuilder {
@@ -74,4 +77,17 @@ public Post create() {
         post.setBoardAndSiteUserId(board.getCode(), siteUser.getId());
         return postRepository.save(post);
     }
+
+    public Post createAfterCertainTime(int time) {
+        Post post = new Post(
+                title,
+                content,
+                isQuestion,
+                likeCount,
+                viewCount,
+                postCategory);
+        post.setBoardAndSiteUserId(board.getCode(), siteUser.getId());
+        post.setCreatedAt(ZonedDateTime.now(ZoneOffset.UTC).plusSeconds(time));
+        return postRepository.save(post);
+    }
 }

src/test/java/com/example/solidconnection/community/post/service/PostQueryServiceTest.java

@@ -76,21 +76,23 @@ void setUp() {
                 boardFixture.자유게시판(),
                 user
         );
-        post2 = postFixture.게시글(
+        post2 = postFixture.게시글_특정_시간_이후로_저장(
                 "제목2",
                 "내용2",
                 false,
                 PostCategory.자유,
                 boardFixture.미주권(),
-                user
+                user,
+                3
         );
-        post3 = postFixture.게시글(
+        post3 = postFixture.게시글_특정_시간_이후로_저장(
                 "제목3",
                 "내용3",
                 true,
                 PostCategory.질문,
                 boardFixture.자유게시판(),
-                user
+                user,
+                6
         );
     }