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<!DOCTYPE html>
<html>
<head>
<title>CSSOM View - getBoxQuads() returns proper border and margin boxes for block and flex</title>
<link rel="help" href="https://drafts.csswg.org/cssom-view/#the-geometryutils-interface">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
.container {
width: 100px;
height: 50px;
background-color: gray;
}
span {
display: block;
background: gold;
height: 4px;
width: 14px;
margin: auto;
padding: 0px;
border: 3px solid blue;
}
</style>
</head>
<body>
<div class="container">
<span id="block-block"></span>
</div>
<div class="container" style="display:flex">
<span id="flex-block"></span>
</div>
<script>
let bb = document.getElementById("block-block")
let fb = document.getElementById("flex-block")
test(function() {
assert_equals(bb.getBoxQuads({box: "border"})[0].getBounds().width, 20)
}, "Block layout border box is expected width.")
test(function() {
assert_equals(bb.getBoxQuads({box: "margin"})[0].getBounds().width, 100)
}, "Block layout margin box is expected width.")
// For containers that expand items to fill block-axis space, measure the box heights also.
test(function() {
assert_equals(fb.getBoxQuads({box: "border"})[0].getBounds().width, 20)
}, "Flex layout border box is expected width.")
test(function() {
assert_equals(fb.getBoxQuads({box: "margin"})[0].getBounds().width, 100)
}, "Flex layout margin box is expected width.")
test(function() {
assert_equals(fb.getBoxQuads({box: "border"})[0].getBounds().height, 10)
}, "Flex layout border box is expected height.")
test(function() {
assert_equals(fb.getBoxQuads({box: "margin"})[0].getBounds().height, 50)
}, "Flex layout margin box is expected height.")
</script>
</body>
</html>
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