LayoutTests/perf/table-rows-length-caching.html - WebKit - Git at Google

 <!DOCTYPE html>
 <html>
 <body>
 <div id='sandbox'></div>
 <div id="console"></div>
 <script src="../resources/magnitude-perf.js"></script>
 <script>

 if (window.testRunner)
     testRunner.dumpAsText();

 var table;
 var sandbox = document.getElementById('sandbox');

 // Check that table.rows.length is properly cached.

 function setupTableRows(magnitude)
 {
     if (sandbox.firstChild)
         sandbox.removeChild(sandbox.firstChild);
     table = document.createElement('table');

     for (var i = 0; i < magnitude; ++i) {
         var tr = document.createElement('tr');
         table.appendChild(tr);
     }
     sandbox.appendChild(table);

     // Make sure we have cached the length before testing!
     table.rows.length;
 }

 function testTableRows(magnitude)
 {
     table.rows.length;
 }

 Magnitude.description('Tests that check that table.row.length is properly cached');
 Magnitude.run(setupTableRows, testTableRows, Magnitude.CONSTANT);
 sandbox.removeChild(sandbox.firstChild);
 </script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<body>
	<div id='sandbox'></div>
	<div id="console"></div>
	<script src="../resources/magnitude-perf.js"></script>
	<script>

	if (window.testRunner)
	testRunner.dumpAsText();

	var table;
	var sandbox = document.getElementById('sandbox');

	// Check that table.rows.length is properly cached.

	function setupTableRows(magnitude)
	{
	if (sandbox.firstChild)
	sandbox.removeChild(sandbox.firstChild);
	table = document.createElement('table');

	for (var i = 0; i < magnitude; ++i) {
	var tr = document.createElement('tr');
	table.appendChild(tr);
	}
	sandbox.appendChild(table);

	// Make sure we have cached the length before testing!
	table.rows.length;
	}

	function testTableRows(magnitude)
	{
	table.rows.length;
	}

	Magnitude.description('Tests that check that table.row.length is properly cached');
	Magnitude.run(setupTableRows, testTableRows, Magnitude.CONSTANT);
	sandbox.removeChild(sandbox.firstChild);
	</script>
	</body>
	</html>