зеркало из https://github.com/mozilla/gecko-dev.git
159 строки
4.9 KiB
HTML
159 строки
4.9 KiB
HTML
<!DOCTYPE HTML>
|
|
<html>
|
|
<!--
|
|
https://bugzilla.mozilla.org/show_bug.cgi?id=936720
|
|
-->
|
|
<head>
|
|
<title>Test for Bug 936720</title>
|
|
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
|
|
<script type="application/javascript" src="/tests/SimpleTest/WindowSnapshot.js"></script>
|
|
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
|
|
</head>
|
|
<body>
|
|
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=936720">Mozilla Bug 936720</a>
|
|
<pre id="test">
|
|
<script type="application/javascript">
|
|
|
|
/** Test for Bug 936720 **/
|
|
|
|
// Because there is no event telling us when an animated image finishes
|
|
// animating, tests for the operators used by animated GIFs and PNGs
|
|
// require that we poll until we get the correct result. A fixed timeout
|
|
// can easily result in intermittent failures on tests running in VMs.
|
|
|
|
// (Note that we do _not_ poll the reference, so it must not be animated.)
|
|
|
|
var gTests = [
|
|
// IMPORTANT NOTE: For these tests, the test and reference are not
|
|
// snapshotted in the same way. The REFERENCE (second file) is
|
|
// assumed to be complete when loaded, but we poll the TEST
|
|
// (first file) until the test passes.
|
|
|
|
// Tests of the allowed disposal operators for both GIF and APNG: keep, clear,
|
|
// and restore previous.
|
|
"== green-background.html?clear.gif green.png",
|
|
"== green-background.html?clear.png green.png",
|
|
"== keep.gif green.png",
|
|
"== keep.png green.png",
|
|
"== restore-previous.gif green.png",
|
|
"== restore-previous.png green.png",
|
|
|
|
// Tests of the blending/compositing operators that only APNG supports.
|
|
"== over.png grey.png",
|
|
"!= source.png grey.png",
|
|
"== bug900200.png bug900200-ref.png",
|
|
|
|
// Test of subframe updates.
|
|
"== clear2.gif clear2-results.gif",
|
|
];
|
|
|
|
// Maintain a reference count of how many things we're waiting for until
|
|
// we can say the tests are done.
|
|
var gDelayCount = 0;
|
|
function AddFinishDependency()
|
|
{ ++gDelayCount; }
|
|
function RemoveFinishDependency()
|
|
{ if (--gDelayCount == 0) SimpleTest.finish(); }
|
|
|
|
// We record the maximum number of times we had to look at a test before
|
|
// it switched to the passing state (though we assume it's 10 to start
|
|
// rather than 0 so that we have a reasonable default). Then we make a
|
|
// test "time out" if it takes more than gTimeoutFactor times that
|
|
// amount of time. This allows us to report a test failure rather than
|
|
// making a test failure just show up as a timeout.
|
|
var gMaxPassingTries = 10;
|
|
var gTimeoutFactor = 10;
|
|
|
|
function takeSnapshot(iframe_element)
|
|
{
|
|
return snapshotWindow(iframe_element.contentWindow, false);
|
|
}
|
|
|
|
function passes(op, shot1, shot2)
|
|
{
|
|
var [correct, s1, s2] = compareSnapshots(shot1, shot2, op == "==");
|
|
return correct;
|
|
}
|
|
|
|
function startTest(i)
|
|
{
|
|
var testLine = gTests[i];
|
|
var splitData = testLine.split(" ");
|
|
var testData =
|
|
{ op: splitData[0], test: splitData[1], reference: splitData[2] };
|
|
var tries = 0;
|
|
|
|
// Maintain state specific to this test in the closure exposed to all
|
|
// the functions nested inside this one.
|
|
|
|
function startIframe(url)
|
|
{
|
|
var element = document.createElement("iframe");
|
|
element.addEventListener("load", handleLoad, false);
|
|
// Smaller than normal reftests, but enough for these.
|
|
element.setAttribute("style", "width: 100px; height: 100px");
|
|
element.setAttribute("frameborder", "0");
|
|
element.setAttribute("scrolling", "no");
|
|
element.src = url;
|
|
document.body.appendChild(element);
|
|
function handleLoad(event)
|
|
{
|
|
iframe.loaded = true;
|
|
if (iframe == reference) {
|
|
reference.snapshot = takeSnapshot(element);
|
|
}
|
|
var other = (iframe == test) ? reference : test;
|
|
if (other.loaded) {
|
|
setTimeout(checkTest, 100);
|
|
}
|
|
}
|
|
function checkTest()
|
|
{
|
|
var test_snapshot = takeSnapshot(test.element);
|
|
if (passes(testData.op, test_snapshot, reference.snapshot)) {
|
|
if (tries > gMaxPassingTries) {
|
|
gMaxPassingTries = tries;
|
|
}
|
|
report(true);
|
|
} else {
|
|
++tries;
|
|
if (tries > gMaxPassingTries * gTimeoutFactor) {
|
|
info("Giving up after " + tries + " tries, " +
|
|
"maxp=" + gMaxPassingTries +
|
|
"fact=" + gTimeoutFactor);
|
|
report(false);
|
|
} else {
|
|
// The animation might not have finished. Try again in 100ms.
|
|
setTimeout(checkTest, 100);
|
|
}
|
|
}
|
|
}
|
|
function report(result)
|
|
{
|
|
ok(result, "(" + i + ") " +
|
|
testData.op + " " + testData.test + " " + testData.reference);
|
|
RemoveFinishDependency();
|
|
}
|
|
var iframe = { element: element, loaded: false };
|
|
|
|
return iframe;
|
|
}
|
|
|
|
AddFinishDependency();
|
|
var test = startIframe(testData.test);
|
|
var reference = startIframe(testData.reference);
|
|
}
|
|
|
|
SimpleTest.waitForExplicitFinish();
|
|
SimpleTest.requestFlakyTimeout("untriaged");
|
|
|
|
// Run the tests.
|
|
for (var i = 0; i < gTests.length; ++i) {
|
|
startTest(i);
|
|
}
|
|
|
|
</script>
|
|
</pre>
|
|
</body>
|
|
</html>
|