public void ReadWriteTest()
{
try
{
Modeling.Read();
Assert.Fail();
}
catch (XmlException exception)
{
Trace.WriteLine(exception);
}
IEnumerable <XElement> items = Modeling.RssItems("https://weblogs.asp.net/dixin/rss");
Assert.IsTrue(items.Any());
Modeling.XNodeToString();
Modeling.Write();
}