зеркало из https://github.com/mozilla/gecko-dev.git
74 строки
2.2 KiB
JavaScript
74 строки
2.2 KiB
JavaScript
// 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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/* eslint-env node */
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/*
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Ensure the `--firefox.preference=network.http.http3.enabled:true` is
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set for this test.
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*/
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async function test(context, commands) {
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let rootUrl = "https://www.youtube.com/watch?v=COU5T-Wafa4";
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let waitTime = 20000;
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if (
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(typeof context.options.browsertime !== "undefined") &
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(typeof context.options.browsertime.waitTime !== "undefined")
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) {
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waitTime = context.options.browsertime.waitTime;
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}
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// Make firefox learn of HTTP/3 server
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await commands.navigate(rootUrl);
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let cycles = 1;
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for (let cycle = 0; cycle < cycles; cycle++) {
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await commands.measure.start("pageload");
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await commands.navigate(rootUrl);
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// Make sure the video is running
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if (
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await commands.js.run(`return document.querySelector("video").paused;`)
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) {
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throw new Error("Video should be running but it's paused");
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}
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// Disable youtube autoplay
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await commands.click.byIdAndWait("toggleButton");
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// Start playback quality measurements
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const start = await commands.js.run(`return performance.now();`);
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while (
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!(await commands.js.run(`
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return document.querySelector("video").ended;
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`)) &
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!(await commands.js.run(`
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return document.querySelector("video").paused;
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`)) &
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((await commands.js.run(`return performance.now();`)) - start < waitTime)
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) {
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await commands.wait.byTime(5000);
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context.log.info("playing...");
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}
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// Video done, now gather metrics
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const playbackQuality = await commands.js.run(
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`return document.querySelector("video").getVideoPlaybackQuality();`
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);
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await commands.measure.stop();
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commands.measure.result[0].browserScripts.pageinfo.droppedFrames =
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playbackQuality.droppedVideoFrames;
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commands.measure.result[0].browserScripts.pageinfo.decodedFrames =
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playbackQuality.totalVideoFrames;
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}
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}
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module.exports = {
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test,
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owner: "Network Team",
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name: "youtube-noscroll",
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description: "Measures quality of the video being played.",
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};
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