commit b60b8871fa08feaaca24bcf6dff43df0cd1c5f29 Author: Arthur Edelstein arthuredelstein@gmail.com Date: Fri May 27 11:31:48 2016 -0700
Regression tests for Bug 1517: Reduce precision of time for Javascript. --- tbb-tests/audio.ogg | Bin 0 -> 16521 bytes tbb-tests/mochitest.ini | 3 ++ tbb-tests/noaudio.webm | Bin 0 -> 105755 bytes tbb-tests/test_tor_bug1517.html | 79 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 82 insertions(+)
diff --git a/tbb-tests/audio.ogg b/tbb-tests/audio.ogg new file mode 100644 index 0000000..d7f6a0c Binary files /dev/null and b/tbb-tests/audio.ogg differ diff --git a/tbb-tests/mochitest.ini b/tbb-tests/mochitest.ini index 2dc049a..3d2e7c9 100644 --- a/tbb-tests/mochitest.ini +++ b/tbb-tests/mochitest.ini @@ -1,8 +1,11 @@ [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] diff --git a/tbb-tests/noaudio.webm b/tbb-tests/noaudio.webm new file mode 100644 index 0000000..9207017 Binary files /dev/null and b/tbb-tests/noaudio.webm differ diff --git a/tbb-tests/test_tor_bug1517.html b/tbb-tests/test_tor_bug1517.html new file mode 100644 index 0000000..67d6693 --- /dev/null +++ b/tbb-tests/test_tor_bug1517.html @@ -0,0 +1,79 @@ +<!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%22%3E</video> +<audio id="test-audio" + src="http://example.com/tests/tbb-tests/audio.ogg%22%3E</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', + ]; + // 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>
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