<!doctype html>
<title>Container Relative Units: Computationally independent</title>
<link rel="help" href="https://drafts.csswg.org/css-contain-3/#container-lengths">
<link rel="help" href="https://drafts.css-houdini.org/css-properties-values-api-1/#computationally-independent">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/cq-testcommon.js"></script>
<script>
  setup(() => assert_implements_container_queries());

  const units = ['cqw', 'cqh', 'cqi', 'cqb', 'cqmin', 'cqmax'];

  for (let unit of units) {
    test(function() {
      assert_throws_dom('SyntaxError', () => {
        CSS.registerProperty({ name: '--x', inherits: false, syntax: '<length>', initialValue: `1${unit}` });
      });
    }, `Container relative unit ${unit} is not computationally independent`);
  }
</script>
