chromium/third_party/blink/web_tests/external/wpt/css/cssom/getComputedStyle-margins-roundtrip.html

<!DOCTYPE html>
<title>Chromium bug: getComputedStyle() fixed-length inset values don't roundtrip</title>
<link rel="help" href="https://drafts.csswg.org/cssom/#resolved-value">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1482703">
<link rel="help" href="mailto:[email protected]">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<div id="target1" style="margin-left: 20.7px"></div>
<script>
test(() => {
  assert_equals(getComputedStyle(target1).marginLeft, '20.7px');
}, 'Fixed-length margin-left property value should roundtrip');
</script>

<div id="target2" style="margin-right: 20.7px"></div>
<script>
test(() => {
  assert_equals(getComputedStyle(target2).marginRight, '20.7px');
}, 'Fixed-length margin-right property value should roundtrip');
</script>

<div id="target3" style="margin-top: 20.7px"></div>
<script>
test(() => {
  assert_equals(getComputedStyle(target3).marginTop, '20.7px');
}, 'Fixed-length margin-top property value should roundtrip');
</script>

<div id="target4" style="margin-bottom: 20.7px"></div>
<script>
test(() => {
  assert_equals(getComputedStyle(target4).marginBottom, '20.7px');
}, 'Fixed-length margin-bottom property value should roundtrip');
</script>