data-foo=bar />')

        el.data('foo', 'bam').data('bar', 'baz')
        el.removeData('foo').removeData('bar')
        t.assertEqual('bar', el.data('foo'))
        t.assertUndefined(el.data('bar'))

        el.data('uno', 'one').data('due', 'two')
        el.removeData('uno due')
        t.assertUndefined(el.data('uno'))
        t.assertUndefined(el.data('due'))

        el.data('one', 1).data('twoThree', 23)
        el.removeData(['one', 'two-three'])
        t.assertUndefined(el.data('one'))
        t