LayoutTests/fast/repaint/overflow-scroll-in-overflow-scroll-scrolled.html - WebKit - Git at Google

 <!DOCTYPE html>
 <html>
 <head>
     <script src="resources/repaint.js" type="text/javascript"></script>
     <script>
     function repaintTest() {
         // Now scroll once in the #innerDiv to the green area.
         if (window.eventSender)
             eventSender.mouseScrollBy(0, -10);
     }
     window.addEventListener("load", runRepaintTest, false);
     </script>
 </head>
 <body>
 <!-- Bug 71550 - REGRESSION (r93614): Content remains despite parent element being scrolled off page using javascript. -->
 <!-- For the test to pass you should not see any RED or PURPLE, only green -->
 <div style="height: 300px; overflow-y: scroll;" id="outerDiv">
     <div style="height: 300px; background: purple;"></div>
     <div style="height: 400px; overflow-y: scroll;" id="innerDiv">
         <div style="height: 400px; width: 300px; background: red"></div>
         <div style="height: 400px; width: 300px; background: green"></div>
     </div>
 </div>
 <script>
 if (window.eventSender) {
     testRunner.dumpAsText(true);

     // Scroll the #outerDiv until we reach the #innerDiv.
     eventSender.mouseMoveTo(50, 50);
     eventSender.mouseScrollBy(0, -8);
 } else {
     document.write("This test is better run under DumpRenderTree. To manually test it, continuously scroll down on the top-most element. There should be no repaint issue.");
 }
 </script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<script src="resources/repaint.js" type="text/javascript"></script>
	<script>
	function repaintTest() {
	// Now scroll once in the #innerDiv to the green area.
	if (window.eventSender)
	eventSender.mouseScrollBy(0, -10);
	}
	window.addEventListener("load", runRepaintTest, false);
	</script>
	</head>
	<body>
	<!-- Bug 71550 - REGRESSION (r93614): Content remains despite parent element being scrolled off page using javascript. -->
	<!-- For the test to pass you should not see any RED or PURPLE, only green -->
	<div style="height: 300px; overflow-y: scroll;" id="outerDiv">
	<div style="height: 300px; background: purple;"></div>
	<div style="height: 400px; overflow-y: scroll;" id="innerDiv">
	<div style="height: 400px; width: 300px; background: red"></div>
	<div style="height: 400px; width: 300px; background: green"></div>
	</div>
	</div>
	<script>
	if (window.eventSender) {
	testRunner.dumpAsText(true);

	// Scroll the #outerDiv until we reach the #innerDiv.
	eventSender.mouseMoveTo(50, 50);
	eventSender.mouseScrollBy(0, -8);
	} else {
	document.write("This test is better run under DumpRenderTree. To manually test it, continuously scroll down on the top-most element. There should be no repaint issue.");
	}
	</script>
	</body>
	</html>