gecko-dev/remote/test/browser/browser_main_target.js

/* Any copyright is dedicated to the Public Domain.
 * http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

// Test very basic CDP features.

const TEST_URI = "data:text/html;charset=utf-8,default-test-page";

add_task(async function() {
  // Start the CDP server
  await RemoteAgent.listen(Services.io.newURI("http://localhost:9222"));

  const { mainProcessTarget } = RemoteAgent.targets;
  ok(mainProcessTarget,
    "The main process target is instantiated after the call to `listen`");

  const targetURL = mainProcessTarget.wsDebuggerURL;

  const CDP = await getCDP();

  const client = await CDP({"target": targetURL});
  ok(true, "CDP client has been instantiated");

  const {Browser, Target} = client;
  ok(Browser, "The main process target exposes Browser domain");
  ok(Target, "The main process target exposes Target domain");

  const version = await Browser.getVersion();
  is(version.product, "Firefox", "Browser.getVersion works");

  const {webSocketDebuggerUrl} = await CDP.Version();
  is(webSocketDebuggerUrl, targetURL,
    "Version endpoint refers to the same Main process target");

  await RemoteAgent.close();
});