LayoutTests/spatial-css/environment-map-rule-off.html

<!DOCTYPE html> <!-- webkit-test-runner [ SpatialPortalEnabled=false ] -->
<html>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<body>
<script>
'use strict';

test(t => {
    const style = document.createElement("style");
    style.textContent = '@environment-map { name: "studio"; format: equirectangular; src: url("studio.hdr"); }';
    document.head.appendChild(style);
    t.add_cleanup(() => style.remove());

    assert_equals(style.sheet.cssRules.length, 0, "the at-rule does not parse");
    assert_equals(window.CSSEnvironmentMapRule, undefined, "no CSSOM interface");
    assert_false(CSS.supports("at-rule(@environment-map)"), "the at-rule is not advertised as supported");
}, "@environment-map is unavailable when the spatial portal feature is off");

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