The Tor Browser: browser/metro/base/tests/mochiperf/browser_tabs

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* Any copyright is dedicated to the Public Domain.

     2    http://creativecommons.org/publicdomain/zero/1.0/ */

     4 "use strict";

     6 function test() {

     7   runTests();

8 }

    10 function timeTab(aUrl) {

    11   return Task.spawn(function() {

    12     let stopwatch = new StopWatch(true);

    13     let tab = Browser.addTab(aUrl, true);

    14     yield tab.pageShowPromise;

    15     stopwatch.stop();

    16     Browser.closeTab(tab, { forceClose: true })

    17     yield waitForMs(500);

    18     throw new Task.Result(stopwatch.time());

    19   });

    20 }

    22 gTests.push({

    23   desc: "tab open",

    24   run: function run() {

    25     yield addTab("about:blank");

    26     yield hideContextUI();

    27     yield waitForMs(5000);

    29     let openDataSet = new Array();

    30     for (let idx = 0; idx < 20; idx++) {

    31       let time = yield timeTab("about:blank");

    32       openDataSet.push(time);

    33     }

    35     // Give the browser a little time to clean up its tabs. 2 because

    36     // we open a tab above as a base to get rid of the start screen.

    37     yield waitForCondition(() => Browser.tabs.length == 2);

    39     PerfTest.declareTest("FBD7A532-D63A-44B5-9744-5CB07CFD131A",

    40                          "tab open", "browser", "ux",

    41                          "Open twenty tabs in succession, closing each before the next is opened. " +

    42                          "Gives the browser time to settle in between. Lets the ui react however it " +

    43                          "is designed to. Strips outliers.");

    44     let result = PerfTest.computeAverage(openDataSet, { stripOutliers: true });

    45     PerfTest.declareNumericalResult(result, "msec");

    46   }

    47 });

The Tor Browser / file revision