private LinkTagCssSource CreateSUT(string baseUrl = "http://a.com", string path = "a.css")
		{
			var node = new HtmlParser().Parse(String.Format("<link href=\"{0}\" />", path));
			var sut = new LinkTagCssSource(node.Head.FirstElementChild, new Uri(baseUrl));

			return sut;
		}
		private LinkTagCssSource CreateSUT(string baseUrl = "http://a.com", string path = "a.css")
		{
			var node = CQ.CreateFragment(String.Format("<link href=\"{0}\" />", path));
			var sut = new LinkTagCssSource(node.FirstElement(), new Uri(baseUrl));

			return sut;
		}