gecko/layout/reftests/css-ui-invalid/select/select-dyn-not-disabled.html

<!DOCTYPE html>
<html class="reftest-wait">
  <!-- Test: if select is not disabled and invalid, it is candidate for
             constraint validation and should be affected
             by :-moz-ui-invalid pseudo-class. -->
  <link rel='stylesheet' type='text/css' href='style.css'>
  <script>
    function onLoadHandler()
    {
      var e = document.getElementById('s');
      e.setCustomValidity('foo');
      e.removeAttribute('disabled');
      document.documentElement.className='';
    }
  </script>
  <body onload="onLoadHandler();">
    <select class='invalid' id='s' disabled></select>
  </body>
</html>