Commit 147a083d authored by Arthur Edelstein's avatar Arthur Edelstein Committed by Georg Koppen
Browse files

Regression tests for Bug 1517: Reduce precision of time for Javascript.

parent 5312319f

tbb-tests/audio.ogg

0 → 100644
+16.1 KiB

File added.

No diff preview for this file type.

View file

tbb-tests/mochitest.ini

+3 −0
Original line number Diff line number Diff line 
[DEFAULT]

support-files =

  audio.ogg

  match.png

  mismatch.png

  noaudio.webm



[test_tor_bug1517.html]

[test_tor_bug2874.html]

[test_tor_bug2875.html]

[test_tor_bug4755.html]

tbb-tests/noaudio.webm

0 → 100644
+103 KiB

File added.

No diff preview for this file type.

View file

tbb-tests/test_tor_bug1517.html

0 → 100644
+81 −0
Original line number Diff line number Diff line 
<!DOCTYPE HTML>

<html>

<!--

Tor bug

https://trac.torproject.org/projects/tor/ticket/1517

-->

<head>

  <meta charset="utf-8">

  <title>Test for Tor Bug 1517</title>

  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>

  <script type="application/javascript" src="/tests/SimpleTest/SpawnTask.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>

</head>

<body>

<a target="_blank" href="https://trac.torproject.org/projects/tor/ticket/1517">Tor Bug 1517</a>



<!-- Canvas, Video, Audio elements for testing 'currentTime' -->

<canvas id="test-canvas" width="100" height="100"></canvas>

<video id="test-video"

       src="http://example.com/tests/tbb-tests/noaudio.webm"></video>

<audio id="test-audio"

       src="http://example.com/tests/tbb-tests/audio.ogg"></audio>



<!-- The main testing script -->

<script type="application/javascript;version=1.7">

  SimpleTest.requestFlakyTimeout("testing JS time-based fingerprinting");



  // __later(delay)__.

  // Return a promise that resolves after the requested delay in ms.

  let later = function (delay) {

    return new Promise((resolve, reject) => {

      window.setTimeout(resolve, delay);

    });

  };



  // The main testing task

  add_task(function* () {

    // Prepare for test of AudioContext.currentTime

    let audioContext = new AudioContext();

    // Prepare for test of CanvasStream.currentTime

    let canvas = document.getElementById("test-canvas");

    let context = canvas.getContext('2d');

    context.fillText("test", 20, 20);

    let canvasStream = canvas.captureStream(25);

    // Prepare for test of HTMLVideoElement.currentTime

    let video = document.getElementById("test-video");

    video.currentTime = 1.25;

    // Prepare for test of HTMLAudioElement.currenTime

    let audio = document.getElementById("test-audio");

    audio.currentTime = 1.35;

    // Allow ~150 ms to elapse, so we can get non-zero

    // time values for all elements.

    yield later(150);

    // Known ways to generate time stamps, in milliseconds

    let timeStampCodes = [

      'performance.now()',

      'new Date().getTime()',

      'new Event("").timeStamp',

      'audioContext.currentTime * 1000',

      'canvasStream.currentTime * 1000',

      'video.currentTime * 1000',

      'audio.currentTime * 1000',

      'new File([], "").lastModified',

      'new File([], "").lastModifiedDate.getTime()',

    ];

    // Loop through each timeStampCode, evaluate it,

    // and check if it is rounded to the nearest 100 ms.

    for (let timeStampCode of timeStampCodes) {

      let timeStamp = eval(timeStampCode);

      let roundedTimeStamp = 100*Math.round(timeStamp/100);

      ok(timeStamp === roundedTimeStamp,

         "'" + timeStampCode +

         "' should be rounded to nearest 100 ms; saw " +

         timeStamp);

    }

  });

</script>





</body>

</html>