chromium/third_party/blink/web_tests/external/wpt/custom-elements/reactions/customized-builtins/HTMLAreaElement.html

<!DOCTYPE html>
<title>Custom Elements: CEReactions on HTMLAreaElement interface</title>
<link rel="author" title="Intel" href="http://www.intel.com">
<meta name="assert" content="alt, coords, shape, target, download, ping, rel,
  referrerPolicy of HTMLAreaElement interface must have CEReactions">
<meta name="help" content="https://html.spec.whatwg.org/#the-area-element">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../../resources/custom-elements-helpers.js"></script>
<script src="../resources/reactions.js"></script>

<map name="yellow" id="map">
</map>
<img usemap="#yellow" src="/images/yellow.png" alt="yellow pic">

<script>

function getParentElement() {
  let map = document.getElementById('map');
  return map;
}

function setAttributes(instance) {
  instance.setAttribute('href', '/images/yellow.png');
}

testReflectAttributeWithDependentAttributes(
  'alt', 'alt', 'yellow pic',
  'yellow pic2', 'alt on HTMLAreaElement', 'area',
  getParentElement, instance => setAttributes(instance), HTMLAreaElement
);
testReflectAttributeWithParentNode(
  'coords', 'coords', '1, 1, 5, 5',
  '2, 2, 6, 6', 'coords on HTMLAreaElement', 'area',
  getParentElement, HTMLAreaElement
);
testReflectAttributeWithDependentAttributes(
  'shape', 'shape', 'rectangle',
  'default', 'shape on HTMLAreaElement', 'area',
  getParentElement, instance => instance.setAttribute('coords', '1, 1, 5, 5'),
  HTMLAreaElement
);
testReflectAttributeWithDependentAttributes(
  'target', 'target', '_blank',
  '_top', 'target on HTMLAreaElement', 'area',
  getParentElement, instance => setAttributes(instance), HTMLAreaElement
);
testReflectAttributeWithDependentAttributes(
  'download', 'download', 'pic1',
  'pic2', 'download on HTMLAreaElement', 'area',
  getParentElement, instance => setAttributes(instance), HTMLAreaElement
);
testReflectAttributeWithDependentAttributes(
  'ping', 'ping', 'location.href',
  `${location.protocol}\/\/${location.host}`, 'ping on HTMLAreaElement', 'area',
  getParentElement, instance => setAttributes(instance), HTMLAreaElement
);
testReflectAttributeWithDependentAttributes(
  'rel', 'rel', 'help',
  'noreferrer', 'rel on HTMLAreaElement', 'area',
  getParentElement, instance => setAttributes(instance), HTMLAreaElement
);
testReflectAttributeWithDependentAttributes(
  'referrerPolicy', 'referrerpolicy', 'same-origin',
  'origin', 'referrerPolicy on HTMLAreaElement', 'area',
  getParentElement, instance => setAttributes(instance), HTMLAreaElement
);

</script>