The Tor Browser / file revision

 function test () {

   let loader = makeLoader();

   let module = Module("./main", gTestPath);

   let require = Require(loader, module);

   const { Ci, Cc, Cu, components } = require("chrome");

   let { generateUUID } = Cc["@mozilla.org/uuid-generator;1"]

                          .getService(Ci.nsIUUIDGenerator);

   ok(isUUID(generateUUID()), "chrome.Cc and chrome.Ci works");

   let { ID: parseUUID } = components;

   let uuidString = "00001111-2222-3333-4444-555566667777";

   let parsed = parseUUID(uuidString);

   is(parsed, "{" + uuidString + "}", "chrome.components works");

   const { defer } = Cu.import("resource://gre/modules/Promise.jsm").Promise;

   let { promise, resolve } = defer();

   resolve(5);

   promise.then(val => {

     is(val, 5, "chrome.Cu works");

     finish();

   });

 }