From 204e5f2c47f72dcb625afbbccc99bb5a9e767278 Mon Sep 17 00:00:00 2001
From: mini <akkn920@naver.com>
Date: Tue, 11 Aug 2026 15:53:46 +0900
Subject: [PATCH] =?UTF-8?q?fix:=20Case=20=EC=83=81=EC=84=B8=20'=EB=8B=B4?=
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백엔드 API 없는 건 #315에서 추적하되, 클릭 시 최소한 다른 미구현
액션들처럼 '준비 중' 토스트는 보여주도록 수정.

closes #322
---
 src/pages/CaseDetailPage/CaseDetailPage.test.tsx | 13 +++++++++++++
 src/pages/CaseDetailPage/CaseDetailPage.tsx      |  3 ++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/pages/CaseDetailPage/CaseDetailPage.test.tsx b/src/pages/CaseDetailPage/CaseDetailPage.test.tsx
index 67e9a7b..1f61ba3 100644
--- a/src/pages/CaseDetailPage/CaseDetailPage.test.tsx
+++ b/src/pages/CaseDetailPage/CaseDetailPage.test.tsx
@@ -824,6 +824,19 @@ describe('CaseDetailPage', () => {
     expect(screen.queryByRole('menu')).not.toBeInTheDocument()
   })
 
+  it('shows a toast when the assignee change action is clicked', async () => {
+    const user = userEvent.setup()
+    mockTaskAndActivities()
+    renderPage()
+    await screen.findByText('응웬반A 체류연장 준비')
+
+    await user.click(screen.getByRole('button', { name: '더보기 ···' }))
+    await user.click(screen.getByRole('menuitem', { name: '담당자 변경' }))
+
+    expect(screen.getByText('담당자 변경은 준비 중입니다.')).toBeInTheDocument()
+    expect(screen.queryByRole('menu')).not.toBeInTheDocument()
+  })
+
   it('cancels the task via the more menu when a reason is entered', async () => {
     const user = userEvent.setup()
     mockTaskAndActivities()
diff --git a/src/pages/CaseDetailPage/CaseDetailPage.tsx b/src/pages/CaseDetailPage/CaseDetailPage.tsx
index f5529ef..1dabca8 100644
--- a/src/pages/CaseDetailPage/CaseDetailPage.tsx
+++ b/src/pages/CaseDetailPage/CaseDetailPage.tsx
@@ -514,8 +514,9 @@ export function CaseDetailPage() {
   }
 
   function handleReassignCase() {
-    // TODO(backend): PATCH /api/work-items/:id/assignee -> 담당자 변경
+    // TODO(backend): PATCH /api/work-items/:id/assignee -> 담당자 변경 (이슈 #315)
     setMoreMenuOpen(false)
+    showToast('담당자 변경은 준비 중입니다.')
   }
 
   function handleExpandContext() {