eplacement: function(t){
        var el = $('<div data-attr-test=val />'),
          childEl = $('<span />').appendTo(el),
          elData = { foo: 'bar' }

        el.data('test', elData)
        childEl.data('test', 1)

        el.replaceWith('<div />')
        t.assertEqual('val', el.data('attrTest'))
        t.assertUndefined(el.data('test'))
        t.assertUndefined(childEl.data('test'))
      },

      testRemoveDataOnElementReplacementHtml: function(t){
        var el = $('<div data-attr-test=val /