зеркало из https://github.com/mozilla/gecko-dev.git
Bug 1000875 - Improve test_fixed_bg_scrolling_repaints.html. r=roc
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691caf748b
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@ -7,8 +7,9 @@
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<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
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</head>
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<!-- Need a timeout here to allow paint unsuppression before we start the test -->
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<body onload="setTimeout(startTest,0)" style="background: url(blue-32x32.png) fixed">
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<body onload="setTimeout(startTest,0)" style="background:url(blue-32x32.png) top left no-repeat fixed; background-size: 100px 2000px; overflow:hidden;">
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<div style="height: 2048px"></div>
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<pre id="test">
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<script type="application/javascript">
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SimpleTest.waitForExplicitFinish();
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@ -18,17 +19,21 @@ var utils = window.QueryInterface(Components.interfaces.nsIInterfaceRequestor).
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function startTest() {
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// Do a scroll to ensure we trigger activity heuristics.
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document.documentElement.scrollTop = 1;
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waitForAllPaintsFlushed(function () {
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document.documentElement.scrollTop = 0;
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waitForAllPaintsFlushed(function () {
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// Clear paint state and scroll down
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utils.checkAndClearPaintedState(document.body);
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utils.checkAndClearPaintedState(document.documentElement);
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document.documentElement.scrollTop = 100;
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waitForAllPaintsFlushed(function () {
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// Make sure the body didn't paint
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var painted = utils.checkAndClearPaintedState(document.body);
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// Make sure nothing painted
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var painted = utils.checkAndClearPaintedState(document.documentElement);
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is(painted, false, "Fixed background should not have been painted when scrolled");
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SimpleTest.finish();
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});
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});
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});
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}
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</script>
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</pre>
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