browser_perf-getSupportedFeatures.js

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/* 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";

add_task(async function () {

  const { front, client } = await initPerfFront();

  info("Get the supported features from the perf actor.");

  const features = await front.getSupportedFeatures();

  ok(Array.isArray(features), "The features are an array.");

  ok(!!features.length, "There are many features supported.");

ok(

    features.includes("js"),

    "All platforms support the js feature, and it's in this list."

);

  // clean up

  await front.stopProfilerAndDiscardProfile();

  await front.destroy();

  await client.close();

});