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test(query-core/queryObserver): add test for 'refetchInterval' as a function refetching at the returned interval #10899

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Merged
sukvvon merged 1 commit into from
Jun 7, 2026
+18 −0
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test(query-core/queryObserver): add test for 'refetchInterval' as a function refetching at the returned interval #10899

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18 changes: 18 additions & 0 deletions packages/query-core/src/__tests__/queryObserver.test.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -747,6 +747,24 @@ describe('queryObserver', () => {
expect(count).toBe(2)
})

it('should refetch at the interval returned when refetchInterval is a function', async () => {
const key = queryKey()
let count = 0
const observer = new QueryObserver(queryClient, {
queryKey: key,
queryFn: () => {
count++
return Promise.resolve('data')
},
refetchInterval: () => 10,
})
const unsubscribe = observer.subscribe(() => undefined)
expect(count).toBe(1)
await vi.advanceTimersByTimeAsync(10)
expect(count).toBe(2)
unsubscribe()
})

it('should use placeholderData as non-cache data when pending a query with no data', async () => {
const key = queryKey()
const observer = new QueryObserver(queryClient, {
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