LayoutTests/fast/regions/remove-box-info-assert.html - WebKit - Git at Google

 <html>
 	<head>
 		<style>
 		.content {
 			-webkit-flow-into: flow;
 		}

 		.region {
 			-webkit-flow-from: flow;
 			width: 300px;
 			height: 300px;
 		}
 	</style>
 	</head>
 <body>
 	<p>Bug <a href="https://bugs.webkit.org/show_bug.cgi?id=109914">109914</a>: [CSS Regions] Assertion in RenderFlowThread::removeRenderBoxRegionInfo</p>
 	<p>This test PASSES if it does not CRASH or ASSERT.</p>
 	<!-- We need two regions to prevent optimizations from hiding the assertion-->
 	<div class="region"></div>
 	<div class="region" id="region"></div>
 	<div class="content"><div id="content">X</div></div>
 	<script type="text/javascript">
 	if (window.testRunner)
         window.testRunner.dumpAsText();
 	document.body.offsetTop;
 	var region = document.getElementById("region");
 	var content = document.getElementById("content");
 	region.style.webkitFlowFrom = "change_flow";
 	content.style.webkitFlowInto = "change_flow";
 	document.body.offsetTop;
 	content.style.display = "none";
 	region.style.display = "none";
 	</script>
 </body>
 </html>
	<html>
	<head>
	<style>
	.content {
	-webkit-flow-into: flow;
	}

	.region {
	-webkit-flow-from: flow;
	width: 300px;
	height: 300px;
	}
	</style>
	</head>
	<body>
	<p>Bug <a href="https://bugs.webkit.org/show_bug.cgi?id=109914">109914</a>: [CSS Regions] Assertion in RenderFlowThread::removeRenderBoxRegionInfo</p>
	<p>This test PASSES if it does not CRASH or ASSERT.</p>
	<!-- We need two regions to prevent optimizations from hiding the assertion-->
	<div class="region"></div>
	<div class="region" id="region"></div>
	<div class="content"><div id="content">X</div></div>
	<script type="text/javascript">
	if (window.testRunner)
	window.testRunner.dumpAsText();
	document.body.offsetTop;
	var region = document.getElementById("region");
	var content = document.getElementById("content");
	region.style.webkitFlowFrom = "change_flow";
	content.style.webkitFlowInto = "change_flow";
	document.body.offsetTop;
	content.style.display = "none";
	region.style.display = "none";
	</script>
	</body>
	</html>