Blitz - WPT: transforms-support-calc.html

wpt / css / css-transforms / transforms-support-calc.html

Data from commit:
1884860 Copy-on-write style attribute blocks that are in the rule tree (#831) (2026-09-02)

Subtest	Status	Message
translate supports calc	FAIL	cannot set non-writable property: style
rotate supports calc	FAIL	cannot set non-writable property: style
scale supports calc	FAIL	cannot set non-writable property: style
perspective supports calc	FAIL	cannot set non-writable property: style
perspective-origin supports calc	FAIL	cannot set non-writable property: style
transform supports calc	FAIL	cannot set non-writable property: style
transform-origin supports calc	FAIL	cannot set non-writable property: style

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/css/css-transforms/transforms-support-calc.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Transform Module Level 2: calc values</title>
<link rel="help" href="https://drafts.csswg.org/css-transforms-2/">
<link rel="help" href="https://drafts.csswg.org/css-values-3/#calc-notation">
<meta name="assert" content="calc values are supported in css-transforms properties.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
  #container {
    width: 600px;
    height: 500px;
    transform-style: preserve-3d;
  }
  #target {
    width: 300px;
    height: 200px;
    font-size: 20px;
  }
</style>
</head>
<body>
<div id="container">
  <div id="target"></div>
</div>
<script>
'use strict';

test(function(){
  target.style = 'translate: calc(30px + 20%) calc(-200px + 100%);';
  assert_equals(getComputedStyle(target).translate, 'calc(20% + 30px) calc(100% - 200px)');
}, 'translate supports calc');

test(function(){
  target.style = 'rotate: calc(1turn - 100grad);';
  assert_equals(getComputedStyle(target).rotate, '270deg');
}, 'rotate supports calc');

test(function(){
  target.style = 'scale: calc(5 + 2) calc(5 - 2) calc(5 * 2);';
  assert_equals(getComputedStyle(target).scale, '7 3 10');
}, 'scale supports calc');

test(function(){
  target.style = 'perspective: calc(100px - 3em);';
  assert_equals(getComputedStyle(target).perspective, '40px');
}, 'perspective supports calc');

test(function(){
  target.style = 'perspective-origin: calc(30px + 20%) calc(-200px + 100%);';
  assert_equals(getComputedStyle(target).perspectiveOrigin, '90px 0px');
}, 'perspective-origin supports calc');

test(function(){
  target.style = 'transform: translate(calc(30px + 20%), calc(-200px + 100%)) rotate(calc(1turn - 400grad)) scale(calc(5 + 2), calc(5 - 2));';
  assert_equals(getComputedStyle(target).transform, 'matrix(7, 0, 0, 3, 90, 0)');
}, 'transform supports calc');

test(function(){
  target.style = 'transform-origin: calc(30px + 20%) calc(-200px + 100%);';
  assert_equals(getComputedStyle(target).transformOrigin, '90px 0px');
}, 'transform-origin supports calc');

</script>
</body>
</html>