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<!DOCTYPE HTML>
<html>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<link rel="stylesheet" href="../../resources/testharness.css">
<head>
<style>
html, body {
margin: 0;
padding: 0;
}
#measure {
margin: 10px;
padding: 10px;
}
#fixedsize {
width: 100px;
height: 100px;
}
</style>
</head>
<body>
<div id="measure"><div id="fixedsize"></div></div>
<script>
if (window.testRunner)
testRunner.dumpAsText();
if (window.internals)
window.internals.settings.setOverlayScrollbarsEnabled(true);
test(function() {
var measure = document.getElementById('measure');
// Record partial layout values for offset*.
var measureWidth = measure.offsetWidth;
var measureHeight = measure.offsetHeight;
var measureTop = measure.offsetTop;
var measureLeft = measure.offsetLeft;
// Invalidate measure and force a full layout.
var child = measure.firstChild;
measure.removeChild(child);
document.body.clientHeight;
measure.appendChild(child);
var forceLayout = document.body.clientHeight;
var childOffsetTop = child.offsetTop;
assert_equals(measureWidth, document.body.offsetWidth - 20);
assert_equals(measureHeight, measure.offsetHeight);
assert_equals(measureTop, childOffsetTop - 10);
assert_equals(measureLeft, measure.offsetLeft);
}, 'Test that partial layout works for offset{width, height, left, top} methods.');
</script>
</body>
</html>
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