gecko-dev/testing/performance/perftest_youtube_link.js

async function test(context, commands) {
  let rootUrl = "https://www.politico.com/";

  await commands.navigate(rootUrl);

  // Wait for browser to settle
  await commands.wait.byTime(10000);

  // Start the measurement
  await commands.measure.start("pageload");

  // Click on the link and wait for page complete check to finish.
  await commands.click.byClassNameAndWait("js-tealium-tracking");

  // Stop and collect the measurement
  await commands.measure.stop();
}

module.exports = {
  test,
  owner: "Performance Team",
  name: "YouTube Link",
  description: "Measures time to load YouTube video",
};