custom-elements/reactions/HTMLParamElement.html

<!DOCTYPE html>
<title>Custom Elements: CEReactions on HTMLParamElement interface</title>
<link rel="author" title="Intel" href="http://www.intel.com">
<meta name="assert" content="name, value of HTMLParamElement
  interface must have CEReactions">
<meta name="help" content="https://html.spec.whatwg.org/#the-param-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>

<body>
<script>

function getParentElement() {
  let element = document.createElement('object');
  element['type'] = 'image/png';
  element['data'] = '/images/blue.png';
  document.body.appendChild(element);
  return element;
}

function setAttributes(instance, attribute, value) {
  instance.setAttribute(attribute, value);
}

testReflectAttributeWithDependentAttributes(
  'name', 'name', 'image1',
  'image2', 'name on HTMLParamElement', 'param',
  getParentElement, instance => setAttributes(instance, 'value', 'blue'),
  HTMLParamElement
);
testReflectAttributeWithDependentAttributes(
  'value', 'value', 'blue1',
  'blue2', 'value on HTMLParamElement', 'param',
  getParentElement, instance => setAttributes(instance, 'name', 'image'),
  HTMLParamElement
);

</script>
</body>