import { TestBed } from '@angular/core/testing' import { afterEach, beforeEach, describe, expectTypeOf, test, vi } from 'vitest' import { provideZonelessChangeDetection } from '@angular/core' import { sleep } from '@tanstack/query-test-utils' import { QueryClient, injectInfiniteQuery, provideTanStackQuery } from '..' import type { InfiniteData } from '@tanstack/query-core' describe('injectInfiniteQuery', () => { let queryClient: QueryClient beforeEach(() => { queryClient = new QueryClient() vi.useFakeTimers() TestBed.configureTestingModule({ providers: [ provideZonelessChangeDetection(), provideTanStackQuery(queryClient), ], }) }) afterEach(() => { vi.useRealTimers() }) test('should narrow type after isSuccess', () => { const query = TestBed.runInInjectionContext(() => { return injectInfiniteQuery(() => ({ queryKey: ['infiniteQuery'], queryFn: ({ pageParam }) => sleep(0).then(() => 'data on page ' + pageParam), initialPageParam: 0, getNextPageParam: () => 12, })) }) if (query.isSuccess()) { const data = query.data() expectTypeOf(data).toEqualTypeOf>() } }) })