node/test/parallel/test-module-globalpaths-nodepath.js

'use strict';
const common = require('../common');
const assert = require('assert');

const mod = require('module');

let partA, partB;
const partC = '';

if (common.isWindows) {
  partA = 'C:\\Users\\Rocko Artischocko\\AppData\\Roaming\\npm';
  partB = 'C:\\Program Files (x86)\\nodejs\\';
  process.env['NODE_PATH'] = `${partA};${partB};${partC}`;
} else {
  partA = '/usr/test/lib/node_modules';
  partB = '/usr/test/lib/node';
  process.env['NODE_PATH'] = `${partA}:${partB}:${partC}`;
}

mod._initPaths();

assert.ok(mod.globalPaths.includes(partA));
assert.ok(mod.globalPaths.includes(partB));
assert.ok(!mod.globalPaths.includes(partC));

assert.ok(Array.isArray(mod.globalPaths));