public void BaseForRelativePaths_NullPath_SetsToEmpty()
{
var dom = new HtmlDom(
@"<html><head><base href='original'/></head></html>");
dom.BaseForRelativePaths = null;
AssertThatXmlIn.Dom(dom.RawDom).HasSpecifiedNumberOfMatchesForXpath("html/head/base", 0);
Assert.AreEqual(string.Empty, dom.BaseForRelativePaths);
}