From 50a123f6b5dc3c306fa5dc0efb35a73d7cacf964 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EB=B0=95=EC=A3=BC=EC=B0=AC?= <p990805@naver.com>
Date: Wed, 1 Apr 2026 18:58:53 +0900
Subject: [PATCH] =?UTF-8?q?fix:=20=EC=9E=90=EA=B8=B0=20=EC=9E=90=EC=8B=A0?=
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---
 .../java/com/prothsync/prothsync/service/BlockService.java    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/prothsync/src/main/java/com/prothsync/prothsync/service/BlockService.java b/prothsync/src/main/java/com/prothsync/prothsync/service/BlockService.java
index cfb5e65..d7ed853 100644
--- a/prothsync/src/main/java/com/prothsync/prothsync/service/BlockService.java
+++ b/prothsync/src/main/java/com/prothsync/prothsync/service/BlockService.java
@@ -34,6 +34,10 @@ public class BlockService {
 
     @Transactional
     public BlockResponseDTO block(Long blockerId, Long blockedId) {
+        if (blockerId.equals(blockedId)) {
+            throw new BusinessException(BlockErrorCode.CANNOT_BLOCK_SELF);
+        }
+
         findUserOrThrow(blockerId);
         findUserOrThrow(blockedId);