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import { describe, expect, it } from 'vitest'

import { getValueAtPath, isPlainRecord, toArray } from './object.js'

class Sample {

value = 1

}

describe('getValueAtPath', () => {

const source = { items: [{ name: 'first', active: false, count: 0 }], empty: null }

it.each([

['items[0].name', 'first'],

['items.0.active', false],

['items[0].count', 0],

['items[1].name', undefined],

['items[0].name.missing', undefined],

['empty.missing', undefined],

])('reads %s without confusing missing and falsy values', (path, expected) => {

expect(getValueAtPath(source, path)).toBe(expected)

})

describe('isPlainRecord', () => {

it('returns false for Date, class instances, arrays, and null', () => {

expect(isPlainRecord(new Date())).toBe(false)

expect(isPlainRecord(new Sample())).toBe(false)

expect(isPlainRecord([])).toBe(false)

expect(isPlainRecord(null)).toBe(false)

})

describe('toArray', () => {

it('returns a fresh array on every miss, so callers cannot share one', () => {

expect(toArray(null)).not.toBe(toArray(null))

})