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Remove IIFE's
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‎packages/toolkit/src/tests/createAsyncThunk.test-d.ts

Lines changed: 128 additions & 140 deletions
Original file line numberDiff line numberDiff line change
@@ -20,182 +20,170 @@ const defaultDispatch = (() => {}) as ThunkDispatch<{}, any, UnknownAction>
2020
const unknownAction = { type: 'foo' } as UnknownAction
2121

2222
describe('type tests', () => {
23-
test('basic usage', () => {
24-
;(async function () {
25-
const asyncThunk = createAsyncThunk('test', (id: number) =>
26-
Promise.resolve(id * 2),
27-
)
23+
test('basic usage', async () => {
24+
const asyncThunk = createAsyncThunk('test', (id: number) =>
25+
Promise.resolve(id * 2),
26+
)
2827

29-
const reducer = createReducer({}, (builder) =>
30-
builder
31-
.addCase(asyncThunk.pending, (_, action) => {
32-
expectTypeOf(action).toEqualTypeOf<
33-
ReturnType<(typeof asyncThunk)['pending']>
34-
>()
35-
})
28+
const reducer = createReducer({}, (builder) =>
29+
builder
30+
.addCase(asyncThunk.pending, (_, action) => {
31+
expectTypeOf(action).toEqualTypeOf<
32+
ReturnType<(typeof asyncThunk)['pending']>
33+
>()
34+
})
3635

37-
.addCase(asyncThunk.fulfilled, (_, action) => {
38-
expectTypeOf(action).toEqualTypeOf<
39-
ReturnType<(typeof asyncThunk)['fulfilled']>
40-
>()
36+
.addCase(asyncThunk.fulfilled, (_, action) => {
37+
expectTypeOf(action).toEqualTypeOf<
38+
ReturnType<(typeof asyncThunk)['fulfilled']>
39+
>()
4140

42-
expectTypeOf(action.payload).toBeNumber()
43-
})
41+
expectTypeOf(action.payload).toBeNumber()
42+
})
4443

45-
.addCase(asyncThunk.rejected, (_, action) => {
46-
expectTypeOf(action).toEqualTypeOf<
47-
ReturnType<(typeof asyncThunk)['rejected']>
48-
>()
44+
.addCase(asyncThunk.rejected, (_, action) => {
45+
expectTypeOf(action).toEqualTypeOf<
46+
ReturnType<(typeof asyncThunk)['rejected']>
47+
>()
4948

50-
expectTypeOf(action.error).toMatchTypeOf<
51-
Partial<Error> | undefined
52-
>()
53-
}),
54-
)
49+
expectTypeOf(action.error).toMatchTypeOf<Partial<Error> | undefined>()
50+
}),
51+
)
5552

56-
const promise = defaultDispatch(asyncThunk(3))
53+
const promise = defaultDispatch(asyncThunk(3))
5754

58-
expectTypeOf(promise.requestId).toBeString()
55+
expectTypeOf(promise.requestId).toBeString()
5956

60-
expectTypeOf(promise.arg).toBeNumber()
57+
expectTypeOf(promise.arg).toBeNumber()
6158

62-
expectTypeOf(promise.abort).toEqualTypeOf<(reason?: string) => void>()
59+
expectTypeOf(promise.abort).toEqualTypeOf<(reason?: string) => void>()
6360

64-
const result = await promise
61+
const result = await promise
6562

66-
if (asyncThunk.fulfilled.match(result)) {
67-
expectTypeOf(result).toEqualTypeOf<
68-
ReturnType<(typeof asyncThunk)['fulfilled']>
69-
>()
70-
} else {
71-
expectTypeOf(result).toEqualTypeOf<
72-
ReturnType<(typeof asyncThunk)['rejected']>
73-
>()
74-
}
63+
if (asyncThunk.fulfilled.match(result)) {
64+
expectTypeOf(result).toEqualTypeOf<
65+
ReturnType<(typeof asyncThunk)['fulfilled']>
66+
>()
67+
} else {
68+
expectTypeOf(result).toEqualTypeOf<
69+
ReturnType<(typeof asyncThunk)['rejected']>
70+
>()
71+
}
7572

76-
promise
77-
.then(unwrapResult)
78-
.then((result) => {
79-
expectTypeOf(result).toBeNumber()
73+
promise
74+
.then(unwrapResult)
75+
.then((result) => {
76+
expectTypeOf(result).toBeNumber()
8077

81-
expectTypeOf(result).not.toMatchTypeOf<Error>()
82-
})
83-
.catch((error) => {
84-
// catch is always any-typed, nothing we can do here
85-
expectTypeOf(error).toBeAny()
86-
})
87-
})()
78+
expectTypeOf(result).not.toMatchTypeOf<Error>()
79+
})
80+
.catch((error) => {
81+
// catch is always any-typed, nothing we can do here
82+
expectTypeOf(error).toBeAny()
83+
})
8884
})
8985

9086
test('More complex usage of thunk args', () => {
91-
;(async function () {
92-
interface BookModel {
93-
id: string
94-
title: string
95-
}
87+
interface BookModel {
88+
id: string
89+
title: string
90+
}
9691

97-
type BooksState = BookModel[]
98-
99-
const fakeBooks: BookModel[] = [
100-
{ id: 'b', title: 'Second' },
101-
{ id: 'a', title: 'First' },
102-
]
103-
104-
const correctDispatch = (() => {}) as ThunkDispatch<
105-
BookModel[],
106-
{ userAPI: Function },
107-
UnknownAction
108-
>
109-
110-
// Verify that the the first type args to createAsyncThunk line up right
111-
const fetchBooksTAC = createAsyncThunk<
112-
BookModel[],
113-
number,
114-
{
115-
state: BooksState
116-
extra: { userAPI: Function }
117-
}
118-
>(
119-
'books/fetch',
120-
async (arg, { getState, dispatch, extra, requestId, signal }) => {
121-
const state = getState()
92+
type BooksState = BookModel[]
12293

123-
expectTypeOf(arg).toBeNumber()
94+
const fakeBooks: BookModel[] = [
95+
{ id: 'b', title: 'Second' },
96+
{ id: 'a', title: 'First' },
97+
]
12498

125-
expectTypeOf(state).toEqualTypeOf<BookModel[]>()
99+
const correctDispatch = (() => {}) as ThunkDispatch<
100+
BookModel[],
101+
{ userAPI: Function },
102+
UnknownAction
103+
>
126104

127-
expectTypeOf(extra).toEqualTypeOf<{ userAPI: Function }>()
105+
// Verify that the the first type args to createAsyncThunk line up right
106+
const fetchBooksTAC = createAsyncThunk<
107+
BookModel[],
108+
number,
109+
{
110+
state: BooksState
111+
extra: { userAPI: Function }
112+
}
113+
>(
114+
'books/fetch',
115+
async (arg, { getState, dispatch, extra, requestId, signal }) => {
116+
const state = getState()
128117

129-
return fakeBooks
130-
},
131-
)
118+
expectTypeOf(arg).toBeNumber()
132119

133-
correctDispatch(fetchBooksTAC(1))
134-
// @ts-expect-error
135-
defaultDispatch(fetchBooksTAC(1))
136-
})()
137-
})
120+
expectTypeOf(state).toEqualTypeOf<BookModel[]>()
138121

139-
test('returning a rejected action from the promise creator is possible', () => {
140-
;(async () => {
141-
type ReturnValue = { data: 'success' }
142-
type RejectValue = { data: 'error' }
122+
expectTypeOf(extra).toEqualTypeOf<{ userAPI: Function }>()
143123

144-
const fetchBooksTAC = createAsyncThunk<
145-
ReturnValue,
146-
number,
147-
{
148-
rejectValue: RejectValue
149-
}
150-
>('books/fetch', async (arg, { rejectWithValue }) => {
151-
return rejectWithValue({ data: 'error' })
152-
})
124+
return fakeBooks
125+
},
126+
)
153127

154-
const returned = await defaultDispatch(fetchBooksTAC(1))
155-
if (fetchBooksTAC.rejected.match(returned)) {
156-
expectTypeOf(returned.payload).toEqualTypeOf<undefined | RejectValue>()
128+
correctDispatch(fetchBooksTAC(1))
129+
// @ts-expect-error
130+
defaultDispatch(fetchBooksTAC(1))
131+
})
157132

158-
expectTypeOf(returned.payload).toBeNullable()
159-
} else {
160-
expectTypeOf(returned.payload).toEqualTypeOf<ReturnValue>()
133+
test('returning a rejected action from the promise creator is possible', async () => {
134+
type ReturnValue = { data: 'success' }
135+
type RejectValue = { data: 'error' }
136+
137+
const fetchBooksTAC = createAsyncThunk<
138+
ReturnValue,
139+
number,
140+
{
141+
rejectValue: RejectValue
161142
}
143+
>('books/fetch', async (arg, { rejectWithValue }) => {
144+
return rejectWithValue({ data: 'error' })
145+
})
162146

163-
expectTypeOf(unwrapResult(returned)).toEqualTypeOf<ReturnValue>()
147+
const returned = await defaultDispatch(fetchBooksTAC(1))
148+
if (fetchBooksTAC.rejected.match(returned)) {
149+
expectTypeOf(returned.payload).toEqualTypeOf<undefined | RejectValue>()
164150

165-
expectTypeOf(unwrapResult(returned)).not.toMatchTypeOf<RejectValue>()
166-
})()
151+
expectTypeOf(returned.payload).toBeNullable()
152+
} else {
153+
expectTypeOf(returned.payload).toEqualTypeOf<ReturnValue>()
154+
}
155+
156+
expectTypeOf(unwrapResult(returned)).toEqualTypeOf<ReturnValue>()
157+
158+
expectTypeOf(unwrapResult(returned)).not.toMatchTypeOf<RejectValue>()
167159
})
168160

169161
test('regression #1156: union return values fall back to allowing only single member', () => {
170-
;(async () => {
171-
const fn = createAsyncThunk('session/isAdmin', async () => {
172-
const response: boolean = false
173-
return response
174-
})
175-
})()
162+
const fn = createAsyncThunk('session/isAdmin', async () => {
163+
const response: boolean = false
164+
return response
165+
})
176166
})
177167

178168
test('Should handle reject with value within a try catch block. Note: this is a sample code taken from #1605', () => {
179-
;(async () => {
180-
type ResultType = {
181-
text: string
169+
type ResultType = {
170+
text: string
171+
}
172+
const demoPromise = async (): Promise<ResultType> =>
173+
new Promise((resolve, _) => resolve({ text: '' }))
174+
const thunk = createAsyncThunk('thunk', async (args, thunkAPI) => {
175+
try {
176+
const result = await demoPromise()
177+
return result
178+
} catch (error) {
179+
return thunkAPI.rejectWithValue(error)
182180
}
183-
const demoPromise = async (): Promise<ResultType> =>
184-
new Promise((resolve, _) => resolve({ text: '' }))
185-
const thunk = createAsyncThunk('thunk', async (args, thunkAPI) => {
186-
try {
187-
const result = await demoPromise()
188-
return result
189-
} catch (error) {
190-
return thunkAPI.rejectWithValue(error)
191-
}
192-
})
193-
createReducer({}, (builder) =>
194-
builder.addCase(thunk.fulfilled, (s, action) => {
195-
expectTypeOf(action.payload).toEqualTypeOf<ResultType>()
196-
}),
197-
)
198-
})()
181+
})
182+
createReducer({}, (builder) =>
183+
builder.addCase(thunk.fulfilled, (s, action) => {
184+
expectTypeOf(action.payload).toEqualTypeOf<ResultType>()
185+
}),
186+
)
199187
})
200188

201189
test('reject with value', () => {

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