ar all = el.data()

          t.assertEqual(all.answer, 42)
          t.assertEqual(all.color, 'blue')
          t.assertEqual(all.foo, 'bar')

          el.data('foo', 'baz')

          t.assertEqual(all.foo, 'baz')
          t.assertEqual(all.answer, 42)
      },

      testSettingDataWithObjOnManyElements: function(t){
          var items = $('#data_list2 li')

          items.data({
              'foo': 'bar',
              'answer': 42,
              'color': 'purple'
          })

          var values