it('clears comments when metadata is defined', function() {
    var $el = $('<div id="confirm" data-doc-id="foo" data-metadata-url="https://s3.amazonaws.con/bucket/meta"></div>');
    $('body').empty().append($el);
    var view = new CommentConfirmView({id: 'confirm'});
    expect(comments.filter('foo').length).to.equal(0);