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37 lines
1.1 KiB
TypeScript
37 lines
1.1 KiB
TypeScript
import { createDraftSafeSelector, createSelector } from '@reduxjs/toolkit'
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import { produce } from 'immer'
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type State = { value: number }
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const selectSelf = (state: State) => state
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test('handles normal values correctly', () => {
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const unsafeSelector = createSelector(selectSelf, (x) => x.value)
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const draftSafeSelector = createDraftSafeSelector(selectSelf, (x) => x.value)
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let state = { value: 1 }
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expect(unsafeSelector(state)).toBe(1)
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expect(draftSafeSelector(state)).toBe(1)
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state = { value: 2 }
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expect(unsafeSelector(state)).toBe(2)
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expect(draftSafeSelector(state)).toBe(2)
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})
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test('handles drafts correctly', () => {
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const unsafeSelector = createSelector(selectSelf, (state) => state.value)
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const draftSafeSelector = createDraftSafeSelector(
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selectSelf,
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(state) => state.value
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)
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produce({ value: 1 }, (state) => {
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expect(unsafeSelector(state)).toBe(1)
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expect(draftSafeSelector(state)).toBe(1)
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state.value = 2
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expect(unsafeSelector(state)).toBe(1)
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expect(draftSafeSelector(state)).toBe(2)
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})
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})
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