Files
volleyball-dev-frontend/node_modules/@tanstack/react-query/src/__tests__/useQueries.test.tsx
2025-06-02 16:42:16 +00:00

1552 lines
42 KiB
TypeScript

import { describe, expect, expectTypeOf, it, vi } from 'vitest'
import { fireEvent, render, waitFor } from '@testing-library/react'
import * as React from 'react'
import { ErrorBoundary } from 'react-error-boundary'
import { QueryClient } from '@tanstack/query-core'
import { QueryCache, queryOptions, skipToken, useQueries } from '..'
import { createQueryClient, queryKey, renderWithClient, sleep } from './utils'
import type {
QueryFunction,
QueryKey,
QueryObserverResult,
UseQueryOptions,
UseQueryResult,
} from '..'
import type { QueryFunctionContext } from '@tanstack/query-core'
describe('useQueries', () => {
const queryCache = new QueryCache()
const queryClient = createQueryClient({ queryCache })
it('should return the correct states', async () => {
const key1 = queryKey()
const key2 = queryKey()
const results: Array<Array<UseQueryResult>> = []
function Page() {
const result = useQueries({
queries: [
{
queryKey: key1,
queryFn: async () => {
await sleep(10)
return 1
},
},
{
queryKey: key2,
queryFn: async () => {
await sleep(200)
return 2
},
},
],
})
results.push(result)
return (
<div>
<div>
data1: {String(result[0].data ?? 'null')}, data2:{' '}
{String(result[1].data ?? 'null')}
</div>
</div>
)
}
const rendered = renderWithClient(queryClient, <Page />)
await waitFor(() => rendered.getByText('data1: 1, data2: 2'))
expect(results.length).toBe(3)
expect(results[0]).toMatchObject([{ data: undefined }, { data: undefined }])
expect(results[1]).toMatchObject([{ data: 1 }, { data: undefined }])
expect(results[2]).toMatchObject([{ data: 1 }, { data: 2 }])
})
it('should track results', async () => {
const key1 = queryKey()
const results: Array<Array<UseQueryResult>> = []
let count = 0
function Page() {
const result = useQueries({
queries: [
{
queryKey: key1,
queryFn: async () => {
await sleep(10)
count++
return count
},
},
],
})
results.push(result)
return (
<div>
<div>data: {String(result[0].data ?? 'null')} </div>
<button onClick={() => result[0].refetch()}>refetch</button>
</div>
)
}
const rendered = renderWithClient(queryClient, <Page />)
await waitFor(() => rendered.getByText('data: 1'))
expect(results.length).toBe(2)
expect(results[0]).toMatchObject([{ data: undefined }])
expect(results[1]).toMatchObject([{ data: 1 }])
fireEvent.click(rendered.getByRole('button', { name: /refetch/i }))
await waitFor(() => rendered.getByText('data: 2'))
// only one render for data update, no render for isFetching transition
expect(results.length).toBe(3)
expect(results[2]).toMatchObject([{ data: 2 }])
})
it('handles type parameter - tuple of tuples', async () => {
const key1 = queryKey()
const key2 = queryKey()
const key3 = queryKey()
// @ts-expect-error (Page component is not rendered)
function Page() {
const result1 = useQueries<
[[number], [string], [Array<string>, boolean]]
>({
queries: [
{
queryKey: key1,
queryFn: () => 1,
},
{
queryKey: key2,
queryFn: () => 'string',
},
{
queryKey: key3,
queryFn: () => ['string[]'],
},
],
})
expectTypeOf(result1[0]).toEqualTypeOf<UseQueryResult<number, unknown>>()
expectTypeOf(result1[1]).toEqualTypeOf<UseQueryResult<string, unknown>>()
expectTypeOf(result1[2]).toEqualTypeOf<
UseQueryResult<Array<string>, boolean>
>()
expectTypeOf(result1[0].data).toEqualTypeOf<number | undefined>()
expectTypeOf(result1[1].data).toEqualTypeOf<string | undefined>()
expectTypeOf(result1[2].data).toEqualTypeOf<Array<string> | undefined>()
expectTypeOf(result1[2].error).toEqualTypeOf<boolean | null>()
// TData (3rd element) takes precedence over TQueryFnData (1st element)
const result2 = useQueries<
[[string, unknown, string], [string, unknown, number]]
>({
queries: [
{
queryKey: key1,
queryFn: () => 'string',
select: (a) => {
expectTypeOf(a).toEqualTypeOf<string>()
return a.toLowerCase()
},
},
{
queryKey: key2,
queryFn: () => 'string',
select: (a) => {
expectTypeOf(a).toEqualTypeOf<string>()
return parseInt(a)
},
},
],
})
expectTypeOf(result2[0]).toEqualTypeOf<UseQueryResult<string, unknown>>()
expectTypeOf(result2[1]).toEqualTypeOf<UseQueryResult<number, unknown>>()
expectTypeOf(result2[0].data).toEqualTypeOf<string | undefined>()
expectTypeOf(result2[1].data).toEqualTypeOf<number | undefined>()
// types should be enforced
useQueries<[[string, unknown, string], [string, boolean, number]]>({
queries: [
{
queryKey: key1,
queryFn: () => 'string',
select: (a) => {
expectTypeOf(a).toEqualTypeOf<string>()
return a.toLowerCase()
},
placeholderData: 'string',
// @ts-expect-error (initialData: string)
initialData: 123,
},
{
queryKey: key2,
queryFn: () => 'string',
select: (a) => {
expectTypeOf(a).toEqualTypeOf<string>()
return parseInt(a)
},
placeholderData: 'string',
// @ts-expect-error (initialData: string)
initialData: 123,
},
],
})
// field names should be enforced
useQueries<[[string]]>({
queries: [
{
queryKey: key1,
queryFn: () => 'string',
// @ts-expect-error (invalidField)
someInvalidField: [],
},
],
})
}
})
it('handles type parameter - tuple of objects', async () => {
const key1 = queryKey()
const key2 = queryKey()
const key3 = queryKey()
// @ts-expect-error (Page component is not rendered)
function Page() {
const result1 = useQueries<
[
{ queryFnData: number },
{ queryFnData: string },
{ queryFnData: Array<string>; error: boolean },
]
>({
queries: [
{
queryKey: key1,
queryFn: () => 1,
},
{
queryKey: key2,
queryFn: () => 'string',
},
{
queryKey: key3,
queryFn: () => ['string[]'],
},
],
})
expectTypeOf(result1[0]).toEqualTypeOf<UseQueryResult<number, unknown>>()
expectTypeOf(result1[1]).toEqualTypeOf<UseQueryResult<string, unknown>>()
expectTypeOf(result1[2]).toEqualTypeOf<
UseQueryResult<Array<string>, boolean>
>()
expectTypeOf(result1[0].data).toEqualTypeOf<number | undefined>()
expectTypeOf(result1[1].data).toEqualTypeOf<string | undefined>()
expectTypeOf(result1[2].data).toEqualTypeOf<Array<string> | undefined>()
expectTypeOf(result1[2].error).toEqualTypeOf<boolean | null>()
// TData (data prop) takes precedence over TQueryFnData (queryFnData prop)
const result2 = useQueries<
[
{ queryFnData: string; data: string },
{ queryFnData: string; data: number },
]
>({
queries: [
{
queryKey: key1,
queryFn: () => 'string',
select: (a) => {
expectTypeOf(a).toEqualTypeOf<string>()
return a.toLowerCase()
},
},
{
queryKey: key2,
queryFn: () => 'string',
select: (a) => {
expectTypeOf(a).toEqualTypeOf<string>()
return parseInt(a)
},
},
],
})
expectTypeOf(result2[0]).toEqualTypeOf<UseQueryResult<string, unknown>>()
expectTypeOf(result2[1]).toEqualTypeOf<UseQueryResult<number, unknown>>()
expectTypeOf(result2[0].data).toEqualTypeOf<string | undefined>()
expectTypeOf(result2[1].data).toEqualTypeOf<number | undefined>()
// can pass only TData (data prop) although TQueryFnData will be left unknown
const result3 = useQueries<[{ data: string }, { data: number }]>({
queries: [
{
queryKey: key1,
queryFn: () => 'string',
select: (a) => {
expectTypeOf(a).toEqualTypeOf<unknown>()
return a as string
},
},
{
queryKey: key2,
queryFn: () => 'string',
select: (a) => {
expectTypeOf(a).toEqualTypeOf<unknown>()
return a as number
},
},
],
})
expectTypeOf(result3[0]).toEqualTypeOf<UseQueryResult<string, unknown>>()
expectTypeOf(result3[1]).toEqualTypeOf<UseQueryResult<number, unknown>>()
expectTypeOf(result3[0].data).toEqualTypeOf<string | undefined>()
expectTypeOf(result3[1].data).toEqualTypeOf<number | undefined>()
// types should be enforced
useQueries<
[
{ queryFnData: string; data: string },
{ queryFnData: string; data: number; error: boolean },
]
>({
queries: [
{
queryKey: key1,
queryFn: () => 'string',
select: (a) => {
expectTypeOf(a).toEqualTypeOf<string>()
return a.toLowerCase()
},
placeholderData: 'string',
// @ts-expect-error (initialData: string)
initialData: 123,
},
{
queryKey: key2,
queryFn: () => 'string',
select: (a) => {
expectTypeOf(a).toEqualTypeOf<string>()
return parseInt(a)
},
placeholderData: 'string',
// @ts-expect-error (initialData: string)
initialData: 123,
},
],
})
// field names should be enforced
useQueries<[{ queryFnData: string }]>({
queries: [
{
queryKey: key1,
queryFn: () => 'string',
// @ts-expect-error (invalidField)
someInvalidField: [],
},
],
})
}
})
it('correctly returns types when passing through queryOptions', () => {
// @ts-expect-error (Page component is not rendered)
function Page() {
// data and results types are correct when using queryOptions
const result4 = useQueries({
queries: [
queryOptions({
queryKey: ['key1'],
queryFn: () => 'string',
select: (a) => {
expectTypeOf(a).toEqualTypeOf<string>()
return a.toLowerCase()
},
}),
queryOptions({
queryKey: ['key2'],
queryFn: () => 'string',
select: (a) => {
expectTypeOf(a).toEqualTypeOf<string>()
return parseInt(a)
},
}),
],
})
expectTypeOf(result4[0]).toEqualTypeOf<UseQueryResult<string, Error>>()
expectTypeOf(result4[1]).toEqualTypeOf<UseQueryResult<number, Error>>()
expectTypeOf(result4[0].data).toEqualTypeOf<string | undefined>()
expectTypeOf(result4[1].data).toEqualTypeOf<number | undefined>()
}
})
it('handles array literal without type parameter to infer result type', async () => {
const key1 = queryKey()
const key2 = queryKey()
const key3 = queryKey()
const key4 = queryKey()
const key5 = queryKey()
type BizError = { code: number }
const throwOnError = (_error: BizError) => true
// @ts-expect-error (Page component is not rendered)
function Page() {
// Array.map preserves TQueryFnData
const result1 = useQueries({
queries: Array(50).map((_, i) => ({
queryKey: ['key', i] as const,
queryFn: () => i + 10,
})),
})
expectTypeOf(result1).toEqualTypeOf<
Array<UseQueryResult<number, Error>>
>()
if (result1[0]) {
expectTypeOf(result1[0].data).toEqualTypeOf<number | undefined>()
}
// Array.map preserves TError
const result1_err = useQueries({
queries: Array(50).map((_, i) => ({
queryKey: ['key', i] as const,
queryFn: () => i + 10,
throwOnError,
})),
})
expectTypeOf(result1_err).toEqualTypeOf<
Array<UseQueryResult<number, BizError>>
>()
if (result1_err[0]) {
expectTypeOf(result1_err[0].data).toEqualTypeOf<number | undefined>()
expectTypeOf(result1_err[0].error).toEqualTypeOf<BizError | null>()
}
// Array.map preserves TData
const result2 = useQueries({
queries: Array(50).map((_, i) => ({
queryKey: ['key', i] as const,
queryFn: () => i + 10,
select: (data: number) => data.toString(),
})),
})
expectTypeOf(result2).toEqualTypeOf<
Array<UseQueryResult<string, Error>>
>()
const result2_err = useQueries({
queries: Array(50).map((_, i) => ({
queryKey: ['key', i] as const,
queryFn: () => i + 10,
select: (data: number) => data.toString(),
throwOnError,
})),
})
expectTypeOf(result2_err).toEqualTypeOf<
Array<UseQueryResult<string, BizError>>
>()
const result3 = useQueries({
queries: [
{
queryKey: key1,
queryFn: () => 1,
},
{
queryKey: key2,
queryFn: () => 'string',
},
{
queryKey: key3,
queryFn: () => ['string[]'],
select: () => 123,
},
{
queryKey: key5,
queryFn: () => 'string',
throwOnError,
},
],
})
expectTypeOf(result3[0]).toEqualTypeOf<UseQueryResult<number, Error>>()
expectTypeOf(result3[1]).toEqualTypeOf<UseQueryResult<string, Error>>()
expectTypeOf(result3[2]).toEqualTypeOf<UseQueryResult<number, Error>>()
expectTypeOf(result3[0].data).toEqualTypeOf<number | undefined>()
expectTypeOf(result3[1].data).toEqualTypeOf<string | undefined>()
expectTypeOf(result3[3].data).toEqualTypeOf<string | undefined>()
// select takes precedence over queryFn
expectTypeOf(result3[2].data).toEqualTypeOf<number | undefined>()
// infer TError from throwOnError
expectTypeOf(result3[3].error).toEqualTypeOf<BizError | null>()
// initialData/placeholderData are enforced
useQueries({
queries: [
{
queryKey: key1,
queryFn: () => 'string',
placeholderData: 'string',
// @ts-expect-error (initialData: string)
initialData: 123,
},
{
queryKey: key2,
queryFn: () => 123,
// @ts-expect-error (placeholderData: number)
placeholderData: 'string',
initialData: 123,
},
],
})
// select and throwOnError params are "indirectly" enforced
useQueries({
queries: [
// unfortunately TS will not suggest the type for you
{
queryKey: key1,
queryFn: () => 'string',
},
// however you can add a type to the callback
{
queryKey: key2,
queryFn: () => 'string',
},
// the type you do pass is enforced
{
queryKey: key3,
queryFn: () => 'string',
},
{
queryKey: key4,
queryFn: () => 'string',
select: (a: string) => parseInt(a),
},
{
queryKey: key5,
queryFn: () => 'string',
throwOnError,
},
],
})
// callbacks are also indirectly enforced with Array.map
useQueries({
queries: Array(50).map((_, i) => ({
queryKey: ['key', i] as const,
queryFn: () => i + 10,
select: (data: number) => data.toString(),
})),
})
useQueries({
queries: Array(50).map((_, i) => ({
queryKey: ['key', i] as const,
queryFn: () => i + 10,
select: (data: number) => data.toString(),
})),
})
// results inference works when all the handlers are defined
const result4 = useQueries({
queries: [
{
queryKey: key1,
queryFn: () => 'string',
},
{
queryKey: key2,
queryFn: () => 'string',
},
{
queryKey: key4,
queryFn: () => 'string',
select: (a: string) => parseInt(a),
},
{
queryKey: key5,
queryFn: () => 'string',
select: (a: string) => parseInt(a),
throwOnError,
},
],
})
expectTypeOf(result4[0]).toEqualTypeOf<UseQueryResult<string, Error>>()
expectTypeOf(result4[1]).toEqualTypeOf<UseQueryResult<string, Error>>()
expectTypeOf(result4[2]).toEqualTypeOf<UseQueryResult<number, Error>>()
expectTypeOf(result4[3]).toEqualTypeOf<UseQueryResult<number, BizError>>()
// handles when queryFn returns a Promise
const result5 = useQueries({
queries: [
{
queryKey: key1,
queryFn: () => Promise.resolve('string'),
},
],
})
expectTypeOf(result5[0]).toEqualTypeOf<UseQueryResult<string, Error>>()
// Array as const does not throw error
const result6 = useQueries({
queries: [
{
queryKey: ['key1'],
queryFn: () => 'string',
},
{
queryKey: ['key1'],
queryFn: () => 123,
},
{
queryKey: key5,
queryFn: () => 'string',
throwOnError,
},
],
} as const)
expectTypeOf(result6[0]).toEqualTypeOf<UseQueryResult<string, Error>>()
expectTypeOf(result6[1]).toEqualTypeOf<UseQueryResult<number, Error>>()
expectTypeOf(result6[2]).toEqualTypeOf<UseQueryResult<string, BizError>>()
// field names should be enforced - array literal
useQueries({
queries: [
{
queryKey: key1,
queryFn: () => 'string',
// @ts-expect-error (invalidField)
someInvalidField: [],
},
],
})
// field names should be enforced - Array.map() result
useQueries({
// @ts-expect-error (invalidField)
queries: Array(10).map(() => ({
someInvalidField: '',
})),
})
// field names should be enforced - array literal
useQueries({
queries: [
{
queryKey: key1,
queryFn: () => 'string',
// @ts-expect-error (invalidField)
someInvalidField: [],
},
],
})
// supports queryFn using fetch() to return Promise<any> - Array.map() result
useQueries({
queries: Array(50).map((_, i) => ({
queryKey: ['key', i] as const,
queryFn: () =>
fetch('return Promise<any>').then((resp) => resp.json()),
})),
})
// supports queryFn using fetch() to return Promise<any> - array literal
useQueries({
queries: [
{
queryKey: key1,
queryFn: () =>
fetch('return Promise<any>').then((resp) => resp.json()),
},
],
})
}
})
it('handles strongly typed queryFn factories and useQueries wrappers', () => {
// QueryKey + queryFn factory
type QueryKeyA = ['queryA']
const getQueryKeyA = (): QueryKeyA => ['queryA']
type GetQueryFunctionA = () => QueryFunction<number, QueryKeyA>
const getQueryFunctionA: GetQueryFunctionA = () => async () => {
return 1
}
type SelectorA = (data: number) => [number, string]
const getSelectorA = (): SelectorA => (data) => [data, data.toString()]
type QueryKeyB = ['queryB', string]
const getQueryKeyB = (id: string): QueryKeyB => ['queryB', id]
type GetQueryFunctionB = () => QueryFunction<string, QueryKeyB>
const getQueryFunctionB: GetQueryFunctionB = () => async () => {
return '1'
}
type SelectorB = (data: string) => [string, number]
const getSelectorB = (): SelectorB => (data) => [data, +data]
// Wrapper with strongly typed array-parameter
function useWrappedQueries<
TQueryFnData,
TError,
TData,
TQueryKey extends QueryKey,
>(queries: Array<UseQueryOptions<TQueryFnData, TError, TData, TQueryKey>>) {
return useQueries({
queries: queries.map(
// no need to type the mapped query
(query) => {
const { queryFn: fn, queryKey: key } = query
expectTypeOf(fn).toEqualTypeOf<
| typeof skipToken
| QueryFunction<TQueryFnData, TQueryKey, never>
| undefined
>()
return {
queryKey: key,
queryFn:
fn && fn !== skipToken
? (ctx: QueryFunctionContext<TQueryKey>) => {
// eslint-disable-next-line vitest/valid-expect
expectTypeOf<TQueryKey>(ctx.queryKey)
return fn.call({}, ctx)
}
: undefined,
}
},
),
})
}
// @ts-expect-error (Page component is not rendered)
function Page() {
const result = useQueries({
queries: [
{
queryKey: getQueryKeyA(),
queryFn: getQueryFunctionA(),
},
{
queryKey: getQueryKeyB('id'),
queryFn: getQueryFunctionB(),
},
],
})
expectTypeOf(result[0]).toEqualTypeOf<UseQueryResult<number, Error>>()
expectTypeOf(result[1]).toEqualTypeOf<UseQueryResult<string, Error>>()
const withSelector = useQueries({
queries: [
{
queryKey: getQueryKeyA(),
queryFn: getQueryFunctionA(),
select: getSelectorA(),
},
{
queryKey: getQueryKeyB('id'),
queryFn: getQueryFunctionB(),
select: getSelectorB(),
},
],
})
expectTypeOf(withSelector[0]).toEqualTypeOf<
UseQueryResult<[number, string], Error>
>()
expectTypeOf(withSelector[1]).toEqualTypeOf<
UseQueryResult<[string, number], Error>
>()
const withWrappedQueries = useWrappedQueries(
Array(10).map(() => ({
queryKey: getQueryKeyA(),
queryFn: getQueryFunctionA(),
select: getSelectorA(),
})),
)
expectTypeOf(withWrappedQueries).toEqualTypeOf<
Array<UseQueryResult<number, Error>>
>()
}
})
it("should throw error if in one of queries' queryFn throws and throwOnError is in use", async () => {
const consoleMock = vi
.spyOn(console, 'error')
.mockImplementation(() => undefined)
const key1 = queryKey()
const key2 = queryKey()
const key3 = queryKey()
const key4 = queryKey()
function Page() {
useQueries({
queries: [
{
queryKey: key1,
queryFn: () =>
Promise.reject(
new Error(
'this should not throw because throwOnError is not set',
),
),
},
{
queryKey: key2,
queryFn: () => Promise.reject(new Error('single query error')),
throwOnError: true,
retry: false,
},
{
queryKey: key3,
queryFn: async () => 2,
},
{
queryKey: key4,
queryFn: async () =>
Promise.reject(
new Error('this should not throw because query#2 already did'),
),
throwOnError: true,
retry: false,
},
],
})
return null
}
const rendered = renderWithClient(
queryClient,
<ErrorBoundary
fallbackRender={({ error }) => (
<div>
<div>error boundary</div>
<div>{error.message}</div>
</div>
)}
>
<Page />
</ErrorBoundary>,
)
await waitFor(() => rendered.getByText('error boundary'))
await waitFor(() => rendered.getByText('single query error'))
consoleMock.mockRestore()
})
it("should throw error if in one of queries' queryFn throws and throwOnError function resolves to true", async () => {
const consoleMock = vi
.spyOn(console, 'error')
.mockImplementation(() => undefined)
const key1 = queryKey()
const key2 = queryKey()
const key3 = queryKey()
const key4 = queryKey()
function Page() {
useQueries({
queries: [
{
queryKey: key1,
queryFn: () =>
Promise.reject(
new Error(
'this should not throw because throwOnError function resolves to false',
),
),
throwOnError: () => false,
retry: false,
},
{
queryKey: key2,
queryFn: async () => 2,
},
{
queryKey: key3,
queryFn: () => Promise.reject(new Error('single query error')),
throwOnError: () => true,
retry: false,
},
{
queryKey: key4,
queryFn: async () =>
Promise.reject(
new Error('this should not throw because query#3 already did'),
),
throwOnError: true,
retry: false,
},
],
})
return null
}
const rendered = renderWithClient(
queryClient,
<ErrorBoundary
fallbackRender={({ error }) => (
<div>
<div>error boundary</div>
<div>{error.message}</div>
</div>
)}
>
<Page />
</ErrorBoundary>,
)
await waitFor(() => rendered.getByText('error boundary'))
await waitFor(() => rendered.getByText('single query error'))
consoleMock.mockRestore()
})
it('should use provided custom queryClient', async () => {
const key = queryKey()
const queryFn = async () => {
return Promise.resolve('custom client')
}
function Page() {
const queries = useQueries(
{
queries: [
{
queryKey: key,
queryFn,
},
],
},
queryClient,
)
return <div>data: {queries[0].data}</div>
}
const rendered = render(<Page></Page>)
await waitFor(() => rendered.getByText('data: custom client'))
})
it('should combine queries', async () => {
const key1 = queryKey()
const key2 = queryKey()
function Page() {
const queries = useQueries(
{
queries: [
{
queryKey: key1,
queryFn: () => Promise.resolve('first result'),
},
{
queryKey: key2,
queryFn: () => Promise.resolve('second result'),
},
],
combine: (results) => {
return {
combined: true,
res: results.map((res) => res.data).join(','),
}
},
},
queryClient,
)
return (
<div>
<div>
data: {String(queries.combined)} {queries.res}
</div>
</div>
)
}
const rendered = render(<Page />)
await waitFor(() =>
rendered.getByText('data: true first result,second result'),
)
})
it('should not return new instances when called without queries', async () => {
const key = queryKey()
const ids: Array<number> = []
let resultChanged = 0
function Page() {
const [count, setCount] = React.useState(0)
const result = useQueries({
queries: ids.map((id) => {
return {
queryKey: [key, id],
queryFn: async () => async () => {
return {
id,
content: { value: Math.random() },
}
},
}
}),
combine: () => ({ empty: 'object' }),
})
React.useEffect(() => {
resultChanged++
}, [result])
return (
<div>
<div>count: {count}</div>
<div>data: {JSON.stringify(result)}</div>
<button onClick={() => setCount((c) => c + 1)}>inc</button>
</div>
)
}
const rendered = renderWithClient(queryClient, <Page />)
await waitFor(() => rendered.getByText('data: {"empty":"object"}'))
await waitFor(() => rendered.getByText('count: 0'))
expect(resultChanged).toBe(1)
fireEvent.click(rendered.getByRole('button', { name: /inc/i }))
await waitFor(() => rendered.getByText('count: 1'))
// there should be no further effect calls because the returned object is structurally shared
expect(resultChanged).toBe(1)
})
it('should not have infinite render loops with empty queries (#6645)', async () => {
let renderCount = 0
function Page() {
const result = useQueries({
queries: [],
})
React.useEffect(() => {
renderCount++
})
return <div>data: {JSON.stringify(result)}</div>
}
renderWithClient(queryClient, <Page />)
await sleep(10)
expect(renderCount).toBe(1)
})
it('should only call combine with query results', async () => {
const key1 = queryKey()
const key2 = queryKey()
function Page() {
const result = useQueries({
queries: [
{
queryKey: key1,
queryFn: async () => {
await sleep(5)
return Promise.resolve('query1')
},
},
{
queryKey: key2,
queryFn: async () => {
await sleep(20)
return Promise.resolve('query2')
},
},
],
combine: ([query1, query2]) => {
return {
data: { query1: query1.data, query2: query2.data },
}
},
})
return <div>data: {JSON.stringify(result)}</div>
}
const rendered = renderWithClient(queryClient, <Page />)
await waitFor(() =>
rendered.getByText(
'data: {"data":{"query1":"query1","query2":"query2"}}',
),
)
})
it('should track property access through combine function', async () => {
const key1 = queryKey()
const key2 = queryKey()
let count = 0
const results: Array<unknown> = []
function Page() {
const queries = useQueries(
{
queries: [
{
queryKey: key1,
queryFn: async () => {
await sleep(5)
return Promise.resolve('first result ' + count)
},
},
{
queryKey: key2,
queryFn: async () => {
await sleep(50)
return Promise.resolve('second result ' + count)
},
},
],
combine: (queryResults) => {
return {
combined: true,
refetch: () => queryResults.forEach((res) => res.refetch()),
res: queryResults
.flatMap((res) => (res.data ? [res.data] : []))
.join(','),
}
},
},
queryClient,
)
results.push(queries)
return (
<div>
<div>
data: {String(queries.combined)} {queries.res}
</div>
<button onClick={() => queries.refetch()}>refetch</button>
</div>
)
}
const rendered = render(<Page />)
await waitFor(() =>
rendered.getByText('data: true first result 0,second result 0'),
)
expect(results.length).toBe(3)
expect(results[0]).toStrictEqual({
combined: true,
refetch: expect.any(Function),
res: '',
})
expect(results[1]).toStrictEqual({
combined: true,
refetch: expect.any(Function),
res: 'first result 0',
})
expect(results[2]).toStrictEqual({
combined: true,
refetch: expect.any(Function),
res: 'first result 0,second result 0',
})
count++
fireEvent.click(rendered.getByRole('button', { name: /refetch/i }))
await waitFor(() =>
rendered.getByText('data: true first result 1,second result 1'),
)
const length = results.length
expect([4, 5]).toContain(results.length)
expect(results[results.length - 1]).toStrictEqual({
combined: true,
refetch: expect.any(Function),
res: 'first result 1,second result 1',
})
fireEvent.click(rendered.getByRole('button', { name: /refetch/i }))
await sleep(100)
// no further re-render because data didn't change
expect(results.length).toBe(length)
})
it('should synchronously track properties of all observer even if a property (isLoading) is only accessed on one observer (#7000)', async () => {
const key = queryKey()
const ids = [1, 2]
function Page() {
const { isLoading } = useQueries({
queries: ids.map((id) => ({
queryKey: [key, id],
queryFn: () => {
return new Promise<{
id: number
title: string
}>((resolve, reject) => {
if (id === 2) {
setTimeout(() => {
reject(new Error('FAILURE'))
}, 10)
}
setTimeout(() => {
resolve({ id, title: `Post ${id}` })
}, 10)
})
},
retry: false,
})),
combine: (results) => {
// this tracks data on all observers
void results.forEach((result) => result.data)
return {
// .some aborts early, so `isLoading` might not be accessed (and thus tracked) on all observers
// leading to missing re-renders
isLoading: results.some((result) => result.isLoading),
}
},
})
return (
<div>
<p>Loading Status: {isLoading ? 'Loading...' : 'Loaded'}</p>
</div>
)
}
const rendered = renderWithClient(queryClient, <Page />)
await waitFor(() => rendered.getByText('Loading Status: Loading...'))
await waitFor(() => rendered.getByText('Loading Status: Loaded'))
})
it('should not have stale closures with combine (#6648)', async () => {
const key = queryKey()
function Page() {
const [count, setCount] = React.useState(0)
const queries = useQueries(
{
queries: [
{
queryKey: key,
queryFn: () => Promise.resolve('result'),
},
],
combine: (results) => {
return {
count,
res: results.map((res) => res.data).join(','),
}
},
},
queryClient,
)
return (
<div>
<div>
data: {String(queries.count)} {queries.res}
</div>
<button onClick={() => setCount((c) => c + 1)}>inc</button>
</div>
)
}
const rendered = render(<Page />)
await waitFor(() => rendered.getByText('data: 0 result'))
fireEvent.click(rendered.getByRole('button', { name: /inc/i }))
await waitFor(() => rendered.getByText('data: 1 result'))
})
it('should optimize combine if it is a stable reference', async () => {
const key1 = queryKey()
const key2 = queryKey()
const client = new QueryClient()
const spy = vi.fn()
let value = 0
function Page() {
const [state, setState] = React.useState(0)
const queries = useQueries(
{
queries: [
{
queryKey: key1,
queryFn: async () => {
await sleep(10)
return 'first result:' + value
},
},
{
queryKey: key2,
queryFn: async () => {
await sleep(20)
return 'second result:' + value
},
},
],
combine: React.useCallback((results: Array<QueryObserverResult>) => {
const result = {
combined: true,
res: results.map((res) => res.data).join(','),
}
spy(result)
return result
}, []),
},
client,
)
return (
<div>
<div>
data: {String(queries.combined)} {queries.res}
</div>
<button onClick={() => setState(state + 1)}>rerender</button>
</div>
)
}
const rendered = render(<Page />)
await waitFor(() =>
rendered.getByText('data: true first result:0,second result:0'),
)
// both pending, one pending, both resolved
expect(spy).toHaveBeenCalledTimes(3)
await client.refetchQueries()
// no increase because result hasn't changed
expect(spy).toHaveBeenCalledTimes(3)
fireEvent.click(rendered.getByRole('button', { name: /rerender/i }))
// no increase because just a re-render
expect(spy).toHaveBeenCalledTimes(3)
value = 1
await client.refetchQueries()
await waitFor(() =>
rendered.getByText('data: true first result:1,second result:1'),
)
// two value changes = two re-renders
expect(spy).toHaveBeenCalledTimes(5)
})
it('should re-run combine if the functional reference changes', async () => {
const key1 = queryKey()
const key2 = queryKey()
const client = new QueryClient()
const spy = vi.fn()
function Page() {
const [state, setState] = React.useState(0)
const queries = useQueries(
{
queries: [
{
queryKey: [key1],
queryFn: async () => {
await sleep(10)
return 'first result'
},
},
{
queryKey: [key2],
queryFn: async () => {
await sleep(20)
return 'second result'
},
},
],
combine: React.useCallback(
(results: Array<QueryObserverResult>) => {
const result = {
combined: true,
state,
res: results.map((res) => res.data).join(','),
}
spy(result)
return result
},
[state],
),
},
client,
)
return (
<div>
<div>
data: {String(queries.state)} {queries.res}
</div>
<button onClick={() => setState(state + 1)}>rerender</button>
</div>
)
}
const rendered = render(<Page />)
await waitFor(() =>
rendered.getByText('data: 0 first result,second result'),
)
// both pending, one pending, both resolved
expect(spy).toHaveBeenCalledTimes(3)
fireEvent.click(rendered.getByRole('button', { name: /rerender/i }))
// state changed, re-run combine
expect(spy).toHaveBeenCalledTimes(4)
})
it('should not re-render if combine returns a stable reference', async () => {
const key1 = queryKey()
const key2 = queryKey()
const client = new QueryClient()
const queryFns: Array<string> = []
let renders = 0
function Page() {
const data = useQueries(
{
queries: [
{
queryKey: [key1],
queryFn: async () => {
await sleep(10)
queryFns.push('first result')
return 'first result'
},
},
{
queryKey: [key2],
queryFn: async () => {
await sleep(20)
queryFns.push('second result')
return 'second result'
},
},
],
combine: () => 'foo',
},
client,
)
renders++
return (
<div>
<div>data: {data}</div>
</div>
)
}
const rendered = render(<Page />)
await waitFor(() => rendered.getByText('data: foo'))
await waitFor(() =>
expect(queryFns).toEqual(['first result', 'second result']),
)
expect(renders).toBe(1)
})
it('should re-render once combine returns a different reference', async () => {
const key1 = queryKey()
const key2 = queryKey()
const key3 = queryKey()
const client = new QueryClient()
let renders = 0
function Page() {
const data = useQueries(
{
queries: [
{
queryKey: [key1],
queryFn: async () => {
await sleep(10)
return 'first result'
},
},
{
queryKey: [key2],
queryFn: async () => {
await sleep(15)
return 'second result'
},
},
{
queryKey: [key3],
queryFn: async () => {
await sleep(20)
return 'third result'
},
},
],
combine: (results) => {
const isPending = results.some((res) => res.isPending)
return isPending ? 'pending' : 'foo'
},
},
client,
)
renders++
return (
<div>
<div>data: {data}</div>
</div>
)
}
const rendered = render(<Page />)
await waitFor(() => rendered.getByText('data: pending'))
await waitFor(() => rendered.getByText('data: foo'))
// one with pending, one with foo
expect(renders).toBe(2)
})
})