MagicMirror/tests/unit/global_vars/defaults_modules_spec.js

const fs = require("fs");
const path = require("path");
const vm = require("vm");

const basedir = path.join(__dirname, "../../..");

describe("Default modules set in modules/default/defaultmodules.js", function () {
	let sandbox = null;

	beforeAll(function () {
		const fileName = "js/app.js";
		const filePath = path.join(basedir, fileName);
		const code = fs.readFileSync(filePath);

		sandbox = {
			module: {},
			__dirname: path.dirname(filePath),
			global: {},
			process: {
				on: function () {},
				env: {}
			}
		};

		sandbox.require = function (filename) {
			// This modifies the global slightly,
			// but supplies vm with essential code
			if (filename === "logger") {
				return require("../mocks/logger.js");
			} else {
				try {
					return require(filename);
				} catch (ignore) {
					// ignore
				}
			}
		};

		vm.runInNewContext(code, sandbox, fileName);
	});

	const expectedDefaultModules = require("../../../modules/default/defaultmodules");

	for (const defaultModule of expectedDefaultModules) {
		it(`contains a folder for modules/default/${defaultModule}"`, function () {
			expect(fs.existsSync(path.join(sandbox.global.root_path, "modules/default", defaultModule))).toBe(true);
		});
	}
});