24 lines
809 B
TypeScript
24 lines
809 B
TypeScript
import { findIndex, findKey, differenceBy } from '../src/utils'
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describe('utils 方法测试', () => {
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const arr = [{ id: 1 }, { id: 2 }, { id: 3 }, { id: 4 }]
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it('findIndex 方法', () => {
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expect(findIndex(arr, item => item.id === 1)).toBe(0)
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expect(findIndex(arr, item => item.id === 5)).toBe(-1)
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})
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it('findKey 方法', () => {
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const map = {
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1: { val: 1 },
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2: { val: 2 },
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3: { val: 3 },
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}
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expect(findKey(map, item => item.val === 1)).toBe('1')
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expect(findKey(map, item => item.val === 5)).toBe(undefined)
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})
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it('differenceBy 方法', () => {
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const arr2 = [{ id: 1 }, { id: 3 }, { id: 5 }]
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expect(differenceBy(arr, arr2, 'id')).toMatchObject([{ id: 2 }, { id: 4 }])
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expect(differenceBy(arr2, arr, 'id')).toMatchObject([{ id: 5 }])
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})
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})
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