forked from mirrors/gecko-dev
a3846471d6
Differential Revision: https://phabricator.services.mozilla.com/D14018 --HG-- extra : moz-landing-system : lando
19 lines
743 B
JavaScript
19 lines
743 B
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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add_task(async function testNotActivated() {
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// dom.performance.enable_scheduler_timing is set to false in browser.ini
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waitForExplicitFinish();
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// make sure we throw a JS exception in case the pref is off and
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// we call requestPerformanceMetrics()
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let failed = false;
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try {
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await ChromeUtils.requestPerformanceMetrics();
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} catch (e) {
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failed = true;
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}
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Assert.ok(failed, "We should get an exception if preffed off");
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});
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