rts"></li>
    <li data-category="science"></li>
  </ol>
  <ol id="data_list2">
    <li></li>
    <li></li>
  </ol>
  </div>

  <script>
    Evidence('ZeptoExtendedDataTest', {
      testEmptyCollection: function(t){
        var el = $('#does_not_exist')
        t.assertUndefined(el.data('one'))
      },

      testAttributeDoesNotExist: function(t){
        var el = $('#data_attr')
        t.assertUndefined(el.data('missing'))
      },

      testReadingAttribute: function(t){
        var el = $('#data_att