diff --git a/web/src/components/__tests__/ArticleEditor.spec.ts b/web/src/components/__tests__/ArticleEditor.spec.ts
index 60ef929..aaca4cd 100644
--- a/web/src/components/__tests__/ArticleEditor.spec.ts
+++ b/web/src/components/__tests__/ArticleEditor.spec.ts
@@ -12,6 +12,11 @@ vi.mock('@nuxt/ui/composables', () => ({
 	useToast: () => ({ add: vi.fn() }),
 }))
 
+const emptyRectList = () => Object.assign([], { item: () => null }) as unknown as DOMRectList
+
+Range.prototype.getClientRects = emptyRectList
+Range.prototype.getBoundingClientRect = () => new DOMRect()
+
 function mockResponse(status: number, body: unknown = null) {
 	return {
 		ok: status >= 200 && status < 300,