a11y - Form - Required radio button group

radio-group.html

<h1 id="radio-group-title">A Decent Way to Group Radio Buttons</h1>
<form action="#" aria-labelledby="radio-group-title">
  <fieldset role="radiogroup" aria-required="true">
    <legend>This fieldset is required</legend>
    <label>
      <input type="radio" name="test-group" id="test-group-1" required="true"  value="true">Yes
    </label>
    <label>
      <input type="radio" name="test-group" id="test-group-2" required="true"  value="false">No
    </label>
  </fieldset>
</form>