테스트/린트 안정화: 버튼 쿼리 모호성 제거, 훅 deps 보강, vi.spyOn 모킹, 멀티선택 Moveable 간섭 방지 재확인, 스냅 우선순위 회귀 그린

components/wysiwyg/WysiwygBuilderPage.test.tsx

@@ -1,26 +1,26 @@
-import { describe, it, expect } from 'vitest'
+import { describe, it, expect, vi } from 'vitest'
 import { render, screen, fireEvent, waitFor } from '@testing-library/react'
 import { WysiwygBuilderPage } from '@/components/wysiwyg/WysiwygBuilderPage'
 
 // minimal mock for URL.createObjectURL used by download
-const createObjectURL = global.URL.createObjectURL
-const revokeObjectURL = global.URL.revokeObjectURL
+let spyCreate: ReturnType<typeof vi.spyOn> | null = null
+let spyRevoke: ReturnType<typeof vi.spyOn> | null = null
 
 describe('WysiwygBuilderPage', () => {
   beforeEach(() => {
-    // @ts-ignore
-    global.URL.createObjectURL = () => 'blob:mock'
-    // @ts-ignore
-    global.URL.revokeObjectURL = () => {}
+    spyCreate = vi.spyOn(global.URL, 'createObjectURL').mockReturnValue('blob:mock')
+    spyRevoke = vi.spyOn(global.URL, 'revokeObjectURL').mockImplementation(() => {})
   })
   afterEach(() => {
-    global.URL.createObjectURL = createObjectURL
-    global.URL.revokeObjectURL = revokeObjectURL
+    spyCreate?.mockRestore()
+    spyRevoke?.mockRestore()
+    spyCreate = null
+    spyRevoke = null
   })
 
   it('adds a text object to the canvas', async () => {
     render(<WysiwygBuilderPage />)
-    const addText = screen.getByRole('button', { name: /Add Text/i })
+    const addText = screen.getByRole('button', { name: /^Add Text$/i })
     fireEvent.click(addText)
     await waitFor(() => {
       expect(screen.getByTestId('obj-text-1')).toBeInTheDocument()