test(query-core): add type check tests for queryObserver (#8304)

Co-authored-by: Dominik Dorfmeister <office@dorfmeister.cc>

Author: saul-atomrigs

packages/query-core/src/__tests__/queryObserver.test-d.tsx

@@ -1,7 +1,7 @@
 import { afterEach, beforeEach, describe, expectTypeOf, it } from 'vitest'
 import { QueryObserver } from '..'
 import { createQueryClient, queryKey } from './utils'
-import type { QueryClient } from '..'
+import type { DefaultError, QueryClient } from '..'
 
 describe('queryObserver', () => {
   let queryClient: QueryClient
@@ -26,31 +26,58 @@ describe('queryObserver', () => {
     if (result.isPending) {
       expectTypeOf(result.data).toEqualTypeOf<undefined>()
       expectTypeOf(result.error).toEqualTypeOf<null>()
+      expectTypeOf(result.isError).toEqualTypeOf<false>()
+      expectTypeOf(result.isPending).toEqualTypeOf<true>()
       expectTypeOf(result.isLoading).toEqualTypeOf<boolean>()
+      expectTypeOf(result.isLoadingError).toEqualTypeOf<false>()
+      expectTypeOf(result.isRefetchError).toEqualTypeOf<false>()
       expectTypeOf(result.status).toEqualTypeOf<'pending'>()
     }
     if (result.isLoading) {
       expectTypeOf(result.data).toEqualTypeOf<undefined>()
       expectTypeOf(result.error).toEqualTypeOf<null>()
+      expectTypeOf(result.isError).toEqualTypeOf<false>()
       expectTypeOf(result.isPending).toEqualTypeOf<true>()
+      expectTypeOf(result.isLoading).toEqualTypeOf<true>()
+      expectTypeOf(result.isLoadingError).toEqualTypeOf<false>()
+      expectTypeOf(result.isRefetchError).toEqualTypeOf<false>()
+      expectTypeOf(result.isSuccess).toEqualTypeOf<false>()
       expectTypeOf(result.status).toEqualTypeOf<'pending'>()
     }
 
     if (result.isLoadingError) {
       expectTypeOf(result.data).toEqualTypeOf<undefined>()
-      expectTypeOf(result.error).toEqualTypeOf<Error>()
+      expectTypeOf(result.error).toEqualTypeOf<DefaultError>()
+      expectTypeOf(result.isError).toEqualTypeOf<true>()
+      expectTypeOf(result.isPending).toEqualTypeOf<false>()
+      expectTypeOf(result.isLoading).toEqualTypeOf<false>()
+      expectTypeOf(result.isLoadingError).toEqualTypeOf<true>()
+      expectTypeOf(result.isRefetchError).toEqualTypeOf<false>()
+      expectTypeOf(result.isSuccess).toEqualTypeOf<false>()
       expectTypeOf(result.status).toEqualTypeOf<'error'>()
     }
 
     if (result.isRefetchError) {
       expectTypeOf(result.data).toEqualTypeOf<{ value: string }>()
-      expectTypeOf(result.error).toEqualTypeOf<Error>()
+      expectTypeOf(result.error).toEqualTypeOf<DefaultError>()
+      expectTypeOf(result.isError).toEqualTypeOf<true>()
+      expectTypeOf(result.isPending).toEqualTypeOf<false>()
+      expectTypeOf(result.isLoading).toEqualTypeOf<false>()
+      expectTypeOf(result.isLoadingError).toEqualTypeOf<false>()
+      expectTypeOf(result.isRefetchError).toEqualTypeOf<true>()
+      expectTypeOf(result.isSuccess).toEqualTypeOf<false>()
       expectTypeOf(result.status).toEqualTypeOf<'error'>()
     }
 
     if (result.isSuccess) {
       expectTypeOf(result.data).toEqualTypeOf<{ value: string }>()
       expectTypeOf(result.error).toEqualTypeOf<null>()
+      expectTypeOf(result.isError).toEqualTypeOf<false>()
+      expectTypeOf(result.isPending).toEqualTypeOf<false>()
+      expectTypeOf(result.isLoading).toEqualTypeOf<false>()
+      expectTypeOf(result.isLoadingError).toEqualTypeOf<false>()
+      expectTypeOf(result.isRefetchError).toEqualTypeOf<false>()
+      expectTypeOf(result.isSuccess).toEqualTypeOf<true>()
       expectTypeOf(result.status).toEqualTypeOf<'success'>()
     }
   })