Intlayer

import { describe, expect, it } from 'vitest'; import { reduceObjectFormat } from './reduceObjectFormat'; describe('reduceObjectFormat', () => { it('reduces flat object by format keys', () => { const source = { test1: 'test1', test2: 'test2' }; const format = { test1: 'any' }; expect(reduceObjectFormat(source, format)).toEqual({ test1: 'test1' }); }); it('handles missing keys in source as undefined', () => { const source = { test1: 'test1' } as const; const format = { test1: 'a', test2: 'b' } as const; expect(reduceObjectFormat(source, format)).toEqual({ test1: 'test1', test2: undefined, }); }); it('reduces nested objects', () => { const source = { a: { x: 1, y: 2 }, b: 9 }; const format = { a: { x: 0 } }; expect(reduceObjectFormat(source, format)).toEqual({ a: { x: 1 } }); }); it('reduces arrays by index with the provided format array', () => { const source = { list: [ { id: 1, name: 'A' }, { id: 2, name: 'B', extra: true }, ], }; const format = { list: [{ id: 0 }, { id: 0 }] }; expect(reduceObjectFormat(source, format)).toEqual({ list: [{ id: 1 }, { id: 2 }], }); }); it('supports nested arrays and objects', () => { const source = { items: [{ meta: { x: 10, y: 20 }, skip: true }] }; const format = { items: [{ meta: { y: 0 } }] }; expect(reduceObjectFormat(source, format)).toEqual({ items: [{ meta: { y: 20 } }], }); }); it('handles primitive format - returns source primitive', () => { expect(reduceObjectFormat('hello', 'fmt')).toEqual('hello'); expect(reduceObjectFormat(123, 0)).toEqual(123); expect(reduceObjectFormat(null, null)).toEqual(null); expect(reduceObjectFormat(undefined, undefined)).toEqual(undefined); }); it('handles non-object source when format is object by returning keys with undefined', () => { const source = 'not-an-object'; const format = { a: 0, b: { c: 0 } }; expect(reduceObjectFormat(source as unknown as object, format)).toEqual({ a: undefined, b: { c: undefined }, }); }); });