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Bug 867758 - Test to ensure we don't return to the event loop while changing the frame of two images with the same FPS. r=seth

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--HG--
extra : rebase_source : f91bfad7e8c984553808acf00ae5fc1d92965b24
This commit is contained in:
Joe Drew 2013-05-23 09:49:38 +08:00
parent edc81de920
commit 80590e994e
4 changed files with 113 additions and 0 deletions
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3
image/test/mochitest/Makefile.in
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@ -108,6 +108,9 @@ MOCHITEST_CHROME_FILES = imgutils.js \
rillybad.jpg \
red.png \
lime100x100.svg \
test_synchronized_animation.html \
animated1.gif \
animated2.gif \
$(NULL)
include $(topsrcdir)/config/rules.mk

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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=867758
-->
<head>
<title>Test for Bug 867758</title>
<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/WindowSnapshot.js"></script>
<script type="application/javascript" src="imgutils.js"></script>
<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css" />
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=867758">Mozilla Bug 867758</a>
<p id="display"></p>
<div id="content">
</div>
<pre id="test">
<script type="application/javascript;version=1.8">
/** Test for Bug 867758**/
SimpleTest.waitForExplicitFinish();
const FAILURE_TIMEOUT = 120000; // Fail early after 120 seconds (2 minutes)
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cu = Components.utils;
const gContent = document.getElementById("content");
var gDispatched = false;
var gRanEvent = false;
var gObserver;
var gImg1;
var gImg2;
var gOuter;
var gFinished = false;
var gFirstRequest = null;
function cleanUpAndFinish() {
if (gFinished) {
return;
}
var imgLoadingContent = gImg1.QueryInterface(Ci.nsIImageLoadingContent);
imgLoadingContent.removeObserver(gOuter);
imgLoadingContent = gImg2.QueryInterface(Ci.nsIImageLoadingContent);
imgLoadingContent.removeObserver(gOuter);
SimpleTest.finish();
gFinished = true;
}
function frameUpdate(aRequest) {
if (!gDispatched) {
var util = window.getInterface(Ci.nsIDOMWindowUtils);
util.runBeforeNextEvent(function() {
gRanEvent = true;
});
gDispatched = true;
gFirstRequest = aRequest;
} else if (aRequest != gFirstRequest) {
ok(!gRanEvent, "Should not have run event before all frame update events occurred!");
cleanUpAndFinish();
}
}
function failTest() {
ok(false, "timing out after " + FAILURE_TIMEOUT + "ms. ");
cleanUpAndFinish();
}
function main() {
gImg1 = new Image();
gImg2 = new Image();
// Create, customize & attach decoder observer
var obs = new ImageDecoderObserverStub();
obs.frameUpdate = frameUpdate;
gOuter = Cc["@mozilla.org/image/tools;1"].getService(Ci.imgITools).createScriptedObserver(obs);
var imgLoadingContent = gImg1.QueryInterface(Ci.nsIImageLoadingContent);
imgLoadingContent.addObserver(gOuter);
imgLoadingContent = gImg2.QueryInterface(Ci.nsIImageLoadingContent);
imgLoadingContent.addObserver(gOuter);
// We want to test the cold loading behavior, so clear cache in case an
// earlier test got our image in there already.
clearImageCache();
// These are two copies of the same image; hence, they have the same frame rate.
gImg1.src = "animated1.gif";
gImg2.src = "animated2.gif";
gContent.appendChild(gImg1);
gContent.appendChild(gImg2);
// In case something goes wrong, fail earlier than mochitest timeout,
// and with more information.
setTimeout(failTest, FAILURE_TIMEOUT);
}
window.onload = main;
</script>
</pre>
</body>
</html>