wpt/css/cssom-view/cssom-getBoundingClientRect-002.html at master · web-platform-tests/wpt · GitHub

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<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>CSS Test (CSSOM View): getBoundingClientRect of element outside DOM</title>
    <link rel="author" title="Chris Rebert" href="http://chrisrebert.com">
    <link rel="help" href="http://www.w3.org/TR/cssom-view/#dom-element-getclientrects">
    <link rel="help" href="http://www.w3.org/TR/cssom-view/#dom-element-getboundingclientrect">
    <meta name="flags" content="dom">
    <meta name="assert" content="Calling getBoundingClientRect on an element that is outside of the DOM (and therefore does not have an associated layout box) should result in an all-zeroes DOMRect and should definitely not throw an error.">
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <script>
        test(
            function () {
                var rect = document.createElement('div').getBoundingClientRect();
                assert_equals(rect.x, 0, "DOMRect's x should be zero");
                assert_equals(rect.y, 0, "DOMRect's y should be zero");
                assert_equals(rect.width, 0, "DOMRect's width should be zero");
                assert_equals(rect.height, 0, "DOMRect's height should be zero");
            },
            "getBoundingClientRect on a newly-created Element not yet inserted into the DOM should return an all-zeroes DOMRect"
        );
    </script>
</head>
<body></body>
</html>