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jest.unmock('lodash')
jest.unmock('../../../ducks/utils/list')
import reduce, * as list from '../../../ducks/utils/list'
describe('list reduce', () => {
it('should add item', () => {
const state = createState([
{ id: 1 },
{ id: 2 }
])
const result = createState([
{ id: 1 },
{ id: 2 },
{ id: 3 }
])
expect(reduce(state, list.add({ id: 3 }))).toEqual(result)
})
it('should update item', () => {
const state = createState([
{ id: 1, val: 1 },
{ id: 2, val: 2 }
])
const result = createState([
{ id: 1, val: 1 },
{ id: 2, val: 3 }
])
expect(reduce(state, list.update({ id: 2, val: 3 }))).toEqual(result)
})
it('should remove item', () => {
const state = createState([
{ id: 1 },
{ id: 2 }
])
const result = createState([
{ id: 1 }
])
result.byId[2] = result.indexOf[2] = null
expect(reduce(state, list.remove(2))).toEqual(result)
})
it('should replace all items', () => {
const state = createState([
{ id: 1 },
{ id: 2 }
])
const result = createState([
{ id: 1 }
])
expect(reduce(state, list.receive([{ id: 1 }]))).toEqual(result)
})
})
function createState(items) {
return {
data: items,
byId: _.fromPairs(items.map((item, index) => [item.id, item])),
indexOf: _.fromPairs(items.map((item, index) => [item.id, index]))
}
}
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