getComputedStyle-width-scroll.tentative.html

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This WPT test may be referenced by the following Test IDs:
- /css/cssom/getComputedStyle-width-scroll.tentative.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>getComputedStyle() round-trips in presence of scrollbars.</title>

<link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez">

<link rel="author" href="https://mozilla.org" title="Mozilla">

<link rel="help" href="https://drafts.csswg.org/cssom/#resolved-value">

<script src=/resources/testharness.js></script>

<script src=/resources/testharnessreport.js></script>

<div style="width: 100px; height: 100px; overflow: scroll"></div>

<script>

// NOTE(emilio): This is a .tentative.html because the spec is not clear on

// what the used value of `width` or `height` is, but I think this behavior

// should be uncontroversial.

test(function() {

  let e = document.querySelector("div");

  let cs = getComputedStyle(e);

  let originalWidth = cs.width;

  let originalHeight = cs.height;

  e.style.width = originalWidth;

  e.style.height = originalHeight;

  assert_equals(cs.width, originalWidth, "width round-trips");

  assert_equals(cs.height, originalHeight, "height round-trips");

}, "getComputedStyle() round-trips in presence of scrollbars")

</script>