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