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import { describe, expectTypeOf, test } from 'vitest'
import { get } from 'svelte/store'
import { createQuery, queryOptions } from '../../src/index.js'
import type { OmitKeyof } from '@tanstack/query-core'
import type { CreateQueryOptions } from '../../src/index.js'
describe('createQuery', () => {
test('TData should always be defined when initialData is provided as an object', () => {
const query = createQuery({
queryKey: ['key'],
queryFn: () => ({ wow: true }),
initialData: { wow: true },
})
expectTypeOf(get(query).data).toEqualTypeOf<{ wow: boolean }>()
})
test('TData should be defined when passed through queryOptions', () => {
const options = queryOptions({
queryKey: ['key'],
queryFn: () => ({ wow: true }),
initialData: { wow: true },
})
const query = createQuery(options)
expectTypeOf(get(query).data).toEqualTypeOf<{ wow: boolean }>()
})
test('TData should always be defined when initialData is provided as a function which ALWAYS returns the data', () => {
const query = createQuery({
queryKey: ['key'],
queryFn: () => ({ wow: true }),
initialData: () => ({ wow: true }),
})
expectTypeOf(get(query).data).toEqualTypeOf<{ wow: boolean }>()
})
test('TData should have undefined in the union when initialData is NOT provided', () => {
const query = createQuery({
queryKey: ['key'],
queryFn: () => {
return {
wow: true,
}
},
})
expectTypeOf(get(query).data).toEqualTypeOf<{ wow: boolean } | undefined>()
})
test('Allow custom hooks using CreateQueryOptions', () => {
type Data = string
const useCustomQuery = (
options?: OmitKeyof<CreateQueryOptions<Data>, 'queryKey' | 'queryFn'>,
) => {
return createQuery({
...options,
queryKey: ['todos-key'],
queryFn: () => Promise.resolve('data'),
})
}
const query = useCustomQuery()
expectTypeOf(get(query).data).toEqualTypeOf<Data | undefined>()
})
})
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