test : createdAt 을 설정하는 DomainUtils 구현

Author: leegwichan

src/main/java/eatda/domain/AuditingEntity.java

@@ -15,6 +15,8 @@ public abstract class AuditingEntity {
 
     @PrePersist
     protected void onCreate() {
-        this.createdAt = LocalDateTime.now();
+        if (createdAt == null) {
+            this.createdAt = LocalDateTime.now();
+        }
     }
 }

src/test/java/eatda/util/DomainUtils.java

@@ -0,0 +1,21 @@
+package eatda.util;
+
+import eatda.domain.AuditingEntity;
+import java.time.LocalDateTime;
+import org.springframework.test.util.ReflectionTestUtils;
+
+public final class DomainUtils {
+
+    private static final String CREATED_AT_FIELD = "createdAt";
+
+    private DomainUtils() {
+    }
+
+    public static <T extends AuditingEntity> void setCreatedAt(T entity, LocalDateTime createdAt) {
+        try {
+            ReflectionTestUtils.setField(entity, CREATED_AT_FIELD, createdAt);
+        } catch (Exception e) {
+            throw new IllegalArgumentException("Failed to set createdAt field", e);
+        }
+    }
+}