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'use strict';
const {describe, it} = require('mocha');const assert = require('assert');const yargs = require('../yargs');const {applyExtends} = require('../yargs');
const HELPER_COUNT = 3;
describe('helpers', () => {  it('does not expose additional helpers beyond blessed list', () => {    assert.strictEqual(Object.keys(yargs).length, HELPER_COUNT);  });  describe('applyExtends', () => {    it('exposes applyExtends helper', () => {      const conf = applyExtends(        {extends: './package.json', apple: 'red'},        process.cwd(),        true      );      assert.strictEqual(conf.name, 'yargs'); // loads packge.json.      assert.strictEqual(conf.apple, 'red'); // keeps config with extends.    });  });  describe('Parser', () => {    it('exposes functional argument parser', () => {      const argv = yargs.Parser('--foo --bar=99');      assert.strictEqual(argv.bar, 99);    });  });  describe('hideBin', () => {    it('exposes helper for hiding node bin', () => {      const argv = yargs.hideBin(['node', 'foo.js', '--hello']);      assert.deepStrictEqual(argv, ['--hello']);    });  });});