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test: wrap test in desc #67

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74 changes: 38 additions & 36 deletions src/computed.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -198,42 +198,44 @@ describe("slices pattern", () => {
})
})

describe("immer middleware functions without throwing", () => {
type Store = {
count: number
inc: () => void
dec: () => void
}

type ComputedStore = {
countSq: number
}
describe("immer", () => {
test("immer middleware functions without throwing", () => {
type Store = {
count: number
inc: () => void
dec: () => void
}

type ComputedStore = {
countSq: number
}

const computed = createComputed(
(state: Store): ComputedStore => ({
countSq: state.count ** 2,
}),
{ keys: ["count"] },
)

const computed = createComputed(
(state: Store): ComputedStore => ({
countSq: state.count ** 2,
}),
{ keys: ["count"] },
)
const useStore = create<Store>()(
immer(
computed((set) => ({
count: 1,
inc: () =>
set((state) => {
// example with Immer middleware
state.count += 1
}),
dec: () => set((state) => ({ count: state.count - 1 })),
})),
),
)

const useStore = create<Store>()(
immer(
computed((set) => ({
count: 1,
inc: () =>
set((state) => {
// example with Immer middleware
state.count += 1
}),
dec: () => set((state) => ({ count: state.count - 1 })),
})),
),
)

expect(() => useStore.getState().inc()).not.toThrow()
expect(useStore.getState().count).toEqual(2)
expect(useStore.getState().countSq).toEqual(4)
expect(() => useStore.getState().dec()).not.toThrow()
expect(useStore.getState().count).toEqual(1)
expect(useStore.getState().countSq).toEqual(1)
expect(() => useStore.getState().inc()).not.toThrow()
expect(useStore.getState().count).toEqual(2)
expect(useStore.getState().countSq).toEqual(4)
expect(() => useStore.getState().dec()).not.toThrow()
expect(useStore.getState().count).toEqual(1)
expect(useStore.getState().countSq).toEqual(1)
})
})