r')
        t.assertEqual('uno', el.data('one'))
      },

      testCamelized: function(t){
        var el = $('#data_attr')
        t.assertEqual('baz', el.data('foo-bar'))
        t.assertEqual('baz', el.data('fooBar'))

        el.data('fooBar', 'bam')
        t.assertEqual('bam', el.data('foo-bar'))
        t.assertEqual('bam', el.data('fooBar'))

        el.data('a-b', 'c')
        t.assertEqual('c', el.data().aB)
        t.assertUndefined(el.data()['a-b'])
      },

      testUnderscore: function(t){