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// 暂时未安装依赖,无法测试 |
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// @ts-ignore |
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import { describe, expect, test } from 'vitest'; |
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import { deepMerge } from '@/utils'; |
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describe('deepMerge function', () => { |
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test('should correctly merge basic data types', () => { |
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const source = { a: 1, b: 2, c: null }; |
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const target = { |
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a: 2, |
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b: undefined, |
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c: 3, |
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}; |
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const expected = { |
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a: 2, |
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b: 2, |
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c: 3, |
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}; |
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expect(deepMerge(source, target)).toStrictEqual(expected); |
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}); |
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test('should return the same date if only 1 is passed', () => { |
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const foo = new Date(); |
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const merged = deepMerge(foo, null); |
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const merged2 = deepMerge(undefined, foo); |
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expect(merged).toStrictEqual(foo); |
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expect(merged2).toStrictEqual(foo); |
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expect(merged).toStrictEqual(merged2); |
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}); |
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test('should merge two objects recursively', () => { |
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const source = { |
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a: { b: { c: 1 }, d: [1, 2] }, |
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e: [1, 2], |
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foo: { bar: 3 }, |
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array: [ |
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{ |
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does: 'work', |
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too: [1, 2, 3], |
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}, |
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], |
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r: { a: 1 }, |
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}; |
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const target = { |
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a: { b: { d: [3] } }, |
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e: [3], |
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foo: { baz: 4 }, |
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qu: 5, |
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array: [ |
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{ |
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does: 'work', |
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too: [4, 5, 6], |
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}, |
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{ |
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really: 'yes', |
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}, |
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], |
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r: { a: 2 }, |
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}; |
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const expected = { |
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a: { b: { c: 1, d: [3] }, d: [1, 2] }, |
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e: [3], |
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foo: { |
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bar: 3, |
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baz: 4, |
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}, |
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array: [ |
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{ |
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does: 'work', |
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too: [4, 5, 6], |
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}, |
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{ |
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really: 'yes', |
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}, |
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], |
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qu: 5, |
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r: { a: 2 }, |
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}; |
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expect(deepMerge(source, target)).toStrictEqual(expected); |
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}); |
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test('should replace arrays by default', () => { |
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const source = { |
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a: { b: { d: [1, 2] } }, |
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e: [1, 2], |
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}; |
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const target = { |
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a: { b: { d: [3] } }, |
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e: [3], |
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}; |
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const expected = { |
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a: { b: { d: [3] } }, |
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e: [3], |
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}; |
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expect(deepMerge(source, target)).toStrictEqual(expected); |
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}); |
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test("should union arrays using mergeArrays = 'union'", () => { |
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const source = { |
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a: { b: { d: [1, 2] } }, |
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e: [1, 2], |
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}; |
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const target = { |
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a: { b: { d: [2, 3] } }, |
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e: [1, 3], |
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}; |
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const expected = { |
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a: { b: { d: [1, 2, 3] } }, |
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e: [1, 2, 3], |
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}; |
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expect(deepMerge(source, target, 'union')).toStrictEqual(expected); |
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}); |
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test("should intersect arrays using mergeArrays = 'intersection'", () => { |
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const source = { |
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a: { b: { d: [1, 2] } }, |
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e: [1, 2], |
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}; |
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const target = { |
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a: { b: { d: [2, 3] } }, |
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e: [3], |
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}; |
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const expected = { |
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a: { b: { d: [2] } }, |
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e: [], |
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}; |
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expect(deepMerge(source, target, 'intersection')).toStrictEqual(expected); |
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}); |
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test("should concatenate arrays using mergeArrays = 'concat'", () => { |
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const source = { |
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a: { b: { d: [1, 2] } }, |
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e: [1, 2], |
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}; |
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const target = { |
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a: { b: { d: [2, 3] } }, |
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e: [3], |
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}; |
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const expected = { |
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a: { b: { d: [1, 2, 2, 3] } }, |
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e: [1, 2, 3], |
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}; |
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expect(deepMerge(source, target, 'concat')).toStrictEqual(expected); |
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}); |
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}); |