The Tor Browser / file revision

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 "use strict";

 /**

  * Ensures using child_process and underlying subprocess.jsm

  * works within an addon

  */

 const { exec } = require("sdk/system/child_process");

 const { platform, pathFor } = require("sdk/system");

 const PROFILE_DIR = pathFor("ProfD");

 const isWindows = platform.toLowerCase().indexOf("win") === 0;

 const app = require("sdk/system/xul-app");

 // Once Bug 903018 is resolved, just move the application testing to

 // module.metadata.engines

 if (app.is("Firefox")) {

   exports["test child_process in an addon"] = (assert, done) => {

     exec(isWindows ? "DIR /A-D" : "ls -al", {

       cwd: PROFILE_DIR

     }, (err, stdout, stderr) => {

       assert.ok(!err, "no errors");

       assert.equal(stderr, "", "stderr is empty");

       assert.ok(/extensions\.ini/.test(stdout), "stdout output of `ls -al` finds files");

       if (isWindows)

         assert.ok(!/<DIR>/.test(stdout), "passing args works");

       else

         assert.ok(/d(r[-|w][-|x]){3}/.test(stdout), "passing args works");

       done();

     });

   };

 } else {

   exports["test unsupported"] = (assert) => assert.pass("This application is unsupported.");

 }

 require("sdk/test/runner").runTestsFromModule(module);