1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/image/test/mochitest/test_bug399925.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,80 @@
1.4 +<!DOCTYPE HTML>
1.5 +<html>
1.6 +<!--
1.7 +https://bugzilla.mozilla.org/show_bug.cgi?id=399925
1.8 +-->
1.9 +<head>
1.10 + <title>Test for Bug 399925</title>
1.11 + <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
1.12 + <script type="text/javascript" src="imgutils.js"></script>
1.13 + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
1.14 +</head>
1.15 +<body>
1.16 +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=399925">Mozilla Bug 399925</a>
1.17 +<p id="display"></p>
1.18 +<div id="content" style="display: none">
1.19 +<img src="bug399925.gif" id="gif" />
1.20 +<canvas id="canvas" width="100" height="100"> </canvas>
1.21 +</div>
1.22 +<pre id="test">
1.23 +<script class="testbody" type="text/javascript">
1.24 +
1.25 +/** Test for Bug 399925. **/
1.26 +var pngResults = new Array();
1.27 +var oldTimeoutPref;
1.28 +var oldDiscardPref;
1.29 +SimpleTest.waitForExplicitFinish();
1.30 +window.onload = runTest;
1.31 +
1.32 +function runTest()
1.33 +{
1.34 + // Get the old discard timeout
1.35 + oldTimeoutPref = getImagePref(DISCARD_TIMEOUT_PREF);
1.36 +
1.37 + // We're testing discarding here, so we should make sure it's flipped on
1.38 + oldDiscardPref = getImagePref(DISCARD_ENABLED_PREF);
1.39 +
1.40 + // Enable Discarding
1.41 + setImagePref(DISCARD_ENABLED_PREF, true);
1.42 +
1.43 + // Sets the discard timer to 500ms so we don't have to wait so long. The
1.44 + // actual time is nondeterministic, but is bounded by 2 * timer = 1 second.
1.45 + setImagePref(DISCARD_TIMEOUT_PREF, 1000);
1.46 +
1.47 + // Create the image _after_ setting the discard timer pref
1.48 + var image = new Image();
1.49 + image.setAttribute("id", "gif");
1.50 + image.src = "bug399925.gif";
1.51 + document.getElementById("content").appendChild(image);
1.52 +
1.53 + // draw the canvas once
1.54 + drawCanvas();
1.55 +
1.56 + // Set the timeout to draw it after discard
1.57 + setTimeout('drawCanvas(); allDone();', 3000);
1.58 +}
1.59 +
1.60 +function drawCanvas()
1.61 +{
1.62 + var canvas = document.getElementById('canvas');
1.63 + var context = canvas.getContext('2d');
1.64 + var gif = document.getElementById('gif');
1.65 +
1.66 + context.drawImage(gif, 0, 0);
1.67 + ok(true, "we got through the drawImage call without an exception being thrown");
1.68 + pngResults.push(canvas.toDataURL);
1.69 +}
1.70 +
1.71 +function allDone()
1.72 +{
1.73 + is(pngResults[0], pngResults[1], "got different rendered results");
1.74 + setImagePref(DISCARD_TIMEOUT_PREF, oldTimeoutPref);
1.75 + setImagePref(DISCARD_ENABLED_PREF, oldDiscardPref);
1.76 + SimpleTest.finish();
1.77 +}
1.78 +
1.79 +</script>
1.80 +</pre>
1.81 +</body>
1.82 +</html>
1.83 +
