
        var el = $('#data_attr')
        t.assertEqual('kuuq', el.data('under_score'))
        t.assertUndefined(el.data('under-score'))
        t.assertUndefined(el.data('underScore'))
      },

      testNotChangingAttribute: function(t){
        var el = $('#data_attr')
        t.assertEqual('due', el.data('two'))
        el.data('two', 'changed')
        t.assertEqual('due', el.attr('data-two'))
      },

      testExtendedData: function(t){
        var els = $('#data_attr'),
          els2 = $('#data_