      },

      testFunctionArg: function(t){
        var els = $('#data_attr')

        var data = "hello"

        els.data("addio", function () {
          data = "goodbye"
        })

        t.assertEqual('hello', data)

        els.data("addio")()

        t.assertEqual('goodbye', data)
      },

      testAllData: function(t){
        var el = $('#data_full')

        el.data().samurai = 7
        el.data('one', 'ichi').data('two', 'ni')
        el.data('person', {name: 'Kurosawa'})

        var all 