gecko/browser/metro/base/tests/mochiperf/browser_tabs_01.js

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

"use strict";

function test() {
  runTests();
}

function timeTab(aUrl) {
  return Task.spawn(function() {
    let stopwatch = new StopWatch(true);
    let tab = Browser.addTab(aUrl, true);
    yield tab.pageShowPromise;
    stopwatch.stop();
    Browser.closeTab(tab, { forceClose: true })
    yield waitForMs(500);
    throw new Task.Result(stopwatch.time());
  });
}

gTests.push({
  desc: "tab open",
  run: function run() {
    yield addTab("about:blank");
    yield hideContextUI();
    yield waitForMs(5000);

    let openDataSet = new Array();
    for (let idx = 0; idx < 20; idx++) {
      let time = yield timeTab("about:blank");
      openDataSet.push(time);
    }

    // Give the browser a little time to clean up its tabs. 2 because
    // we open a tab above as a base to get rid of the start screen.
    yield waitForCondition(() => Browser.tabs.length == 2);
    
    PerfTest.declareTest("FBD7A532-D63A-44B5-9744-5CB07CFD131A",
                         "tab open", "browser", "ux",
                         "Open twenty tabs in succession, closing each before the next is opened. " +
                         "Gives the browser time to settle in between. Lets the ui react however it " +
                         "is designed to. Strips outliers.");
    let result = PerfTest.computeAverage(openDataSet, { stripOutliers: true });
    PerfTest.declareNumericalResult(result, "msec");
  }
});