css/css-values/calc-in-color-001.html

<!doctype html>
<meta charset="utf-8">
<title>CSS Test: calc() function in &lt;color&gt;</title>
<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
<link rel="help" href="https://drafts.csswg.org/css-values/#funcdef-calc">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="testNode"></div>
<script>
const div = document.querySelector("#testNode");
const TESTS = {
  // specified -> expected
  "rgb(calc(0), calc(255 + 0), calc(140 - 139 - 1))": "rgb(0, 255, 0)",
  "rgba(calc(0%) calc(100%) calc(0%) / calc(10% * 10))": "rgb(0, 255, 0)",
  "hsl(calc(5deg * (360 / 5)), calc(10% * 10), calc(10% * 10))": "rgb(255, 255, 255)",
  "hsla(calc(5 * (360 / 5)), calc(10% * 10), calc(10% * 10), calc(1.0))": "rgb(255, 255, 255)"
}

test(function() {
  for (let test in TESTS) {
    div.style.backgroundColor = "";
    div.style.backgroundColor = test;
    assert_equals(getComputedStyle(div).backgroundColor, TESTS[test], test);
  }
}, "calc() in color functions");
</script>