#155

frontend/src/components/PostList.test.tsx

@@ -1,11 +1,21 @@
 import { fireEvent, screen } from '@testing-library/react'
-import { describe, expect, it, vi } from 'vitest'
+import { beforeEach, describe, expect, it, vi } from 'vitest'
 
 import PostList from '@/components/PostList'
 import { buildPost } from '@/test/factories'
 import { renderWithProviders } from '@/test/render'
 
+const prefetchers = vi.hoisted (() => ({
+  prefetchForURL: vi.fn (),
+}))
+
+vi.mock ('@/lib/prefetchers', () => prefetchers)
+
 describe ('PostList', () => {
+  beforeEach (() => {
+    prefetchers.prefetchForURL.mockResolvedValue (undefined)
+  })
+
   it ('renders post thumbnails as links to post details', () => {
     renderWithProviders (
         <PostList posts={[