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test(react-query/useMutationState): clarify assertions and improve code formatting#9611

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Merged
TkDodo merged 2 commits into from
Sep 3, 2025
Merged

test(react-query/useMutationState): clarify assertions and improve code formatting #9611

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84f819e
test(react-query/useMutationState): clarify assertions and improve co…
sukvvon Sep 2, 2025
79b9ebf
Merge branch 'main' into test/react-query-use-mutation-state-clarify-…
sukvvon Sep 3, 2025
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20 changes: 13 additions & 7 deletions packages/react-query/src/__tests__/useMutationState.test.tsx
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Original file line numberDiff line numberDiff line change
Expand Up@@ -20,7 +20,9 @@ describe('useIsMutating', () => {

function IsMutating() {
const isMutating = useIsMutating()

isMutatingArray.push(isMutating)

return null
}

Expand DownExpand Up@@ -52,6 +54,7 @@ describe('useIsMutating', () => {
}

const rendered = renderWithClient(queryClient, <Page />)

fireEvent.click(rendered.getByRole('button', { name: /mutate1/i }))
await vi.advanceTimersByTimeAsync(10)
fireEvent.click(rendered.getByRole('button', { name: /mutate2/i }))
Expand All@@ -62,12 +65,14 @@ describe('useIsMutating', () => {
// [ +0, 1, 2, 1, +0 ]
// our batching strategy might yield different results

await vi.advanceTimersByTimeAsync(40)
await vi.advanceTimersByTimeAsync(41)
expect(isMutatingArray[0]).toEqual(0)
expect(isMutatingArray[1]).toEqual(1)
expect(isMutatingArray[2]).toEqual(2)
await vi.advanceTimersByTimeAsync(1)
expect(isMutatingArray[isMutatingArray.length - 1]).toEqual(0)
expect(isMutatingArray[3]).toEqual(1)
expect(isMutatingArray[4]).toEqual(0)

expect(isMutatingArray).toEqual([0, 1, 2, 1, 0])
})

it('should filter correctly by mutationKey', async () => {
Expand DownExpand Up@@ -99,6 +104,7 @@ describe('useIsMutating', () => {
}

renderWithClient(queryClient, <Page />)

await vi.advanceTimersByTimeAsync(101)
expect(isMutatingArray).toEqual([0, 1, 0])
})
Expand DownExpand Up@@ -135,6 +141,7 @@ describe('useIsMutating', () => {
}

renderWithClient(queryClient, <Page />)

await vi.advanceTimersByTimeAsync(101)
expect(isMutatingArray).toEqual([0, 1, 0])
})
Expand DownExpand Up@@ -163,7 +170,7 @@ describe('useIsMutating', () => {
)
}

const rendered = render(<Page></Page>)
const rendered = render(<Page />)

await vi.advanceTimersByTimeAsync(0)
expect(rendered.getByText('mutating: 1')).toBeInTheDocument()
Expand DownExpand Up@@ -220,12 +227,11 @@ describe('useMutationState', () => {

const rendered = renderWithClient(queryClient, <Page />)

rendered.getByText('data: null')
expect(rendered.getByText('data: null')).toBeInTheDocument()

fireEvent.click(rendered.getByRole('button', { name: /mutate/i }))

await vi.advanceTimersByTimeAsync(151)
rendered.getByText('data: data1')
expect(rendered.getByText('data: data1')).toBeInTheDocument()

expect(variables).toEqual([[], [1], []])
})
Expand Down
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