<!doctype html>
<link rel=help href="https://html.spec.whatwg.org/#hidden-elements">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div hidden></div>
<script>
const kNotHiddenElementLocalNames = [
  "source", "track",
];

const kHiddenElementLocalNames = [
  "area", "base", "basefont", "datalist", "head", "link", "meta", "noembed",
  "noframes", "param", "rp", "script", "style", "template", "title",
];

for (let name of kNotHiddenElementLocalNames) {
  test(function() {
    let element = document.createElement(name);
    document.body.appendChild(element);
    assert_equals(getComputedStyle(element).display, "inline");
  }, `${name} should not be hidden`);
}

for (let name of kHiddenElementLocalNames) {
  test(function() {
    let element = document.createElement(name);
    document.body.appendChild(element);
    assert_equals(getComputedStyle(element).display, "none");
  }, `${name} should be hidden`);
}

test(function() {
  assert_equals(getComputedStyle(document.querySelector("[hidden]")).display, "none");
}, `[hidden] element should be hidden`);
</script>
