test(svelte-query/QueryClientProvider): switch to fake timers, replace 'waitFor' with 'vi.waitFor', and add 'expect' (#9385)

Co-authored-by: Jonghyeon Ko <[email protected]>

Author: sukvvon

packages/svelte-query/tests/QueryClientProvider/QueryClientProvider.test.ts

@@ -1,9 +1,17 @@
-import { describe, expect, test } from 'vitest'
-import { render, waitFor } from '@testing-library/svelte'
+import { afterEach, beforeEach, describe, expect, test, vi } from 'vitest'
+import { render } from '@testing-library/svelte'
 import { QueryCache } from '@tanstack/query-core'
 import ParentComponent from './ParentComponent.svelte'
 
 describe('QueryClientProvider', () => {
+  beforeEach(() => {
+    vi.useFakeTimers()
+  })
+
+  afterEach(() => {
+    vi.useRealTimers()
+  })
+
   test('Sets a specific cache for all queries to use', async () => {
     const queryCache = new QueryCache()
 
@@ -13,7 +21,9 @@ describe('QueryClientProvider', () => {
       },
     })
 
-    await waitFor(() => rendered.getByText('Data: test'))
+    await vi.waitFor(() =>
+      expect(rendered.getByText('Data: test')).toBeInTheDocument(),
+    )
 
     expect(queryCache.find({ queryKey: ['hello'] })).toBeDefined()
   })