devtools/server/tests/chrome/webconsole-helpers.js

   1 /* exported addTabAndCreateCommands */
   2 "use strict";
   3
   4 const { require } = ChromeUtils.importESModule(
   5   "resource://devtools/shared/loader/Loader.sys.mjs"
   6 );
   7 const {
   8   DevToolsServer,
   9 } = require("resource://devtools/server/devtools-server.js");
  10 const {
  11   CommandsFactory,
  12 } = require("resource://devtools/shared/commands/commands-factory.js");
  13
  14 // Always log packets when running tests.
  15 Services.prefs.setBoolPref("devtools.debugger.log", true);
  16 SimpleTest.registerCleanupFunction(function () {
  17   Services.prefs.clearUserPref("devtools.debugger.log");
  18 });
  19
  20 if (!DevToolsServer.initialized) {
  21   DevToolsServer.init();
  22   DevToolsServer.registerAllActors();
  23   SimpleTest.registerCleanupFunction(function () {
  24     DevToolsServer.destroy();
  25   });
  26 }
  27
  28 /**
  29  * Open a tab, load the url, find the tab with the devtools server,
  30  * and attach the console to it.
  31  *
  32  * @param {string} url : url to navigate to
  33  * @return {Promise} Promise resolving when commands are initialized
  34  *         The Promise resolves with the commands.
  35  */
  36 async function addTabAndCreateCommands(url) {
  37   const tab = await addTab(url);
  38   const commands = await CommandsFactory.forTab(tab);
  39   await commands.targetCommand.startListening();
  40   return commands;
  41 }
  42
  43 /**
  44  * Naive implementaion of addTab working from a mochitest-chrome test.
  45  */
  46 async function addTab(url) {
  47   const { gBrowser } = Services.wm.getMostRecentWindow("navigator:browser");
  48   const { BrowserTestUtils } = ChromeUtils.importESModule(
  49     "resource://testing-common/BrowserTestUtils.sys.mjs"
  50   );
  51   const tab = (gBrowser.selectedTab = BrowserTestUtils.addTab(gBrowser, url));
  52   await BrowserTestUtils.browserLoaded(tab.linkedBrowser);
  53   return tab;
  54 }