Rico Sinnig

Failed test caused by different XML-formatting of obsolete XmlExt.WriteAttribute and new internal XmlWriteExt.WriteElementString While XmlExt.WriteAttribute is writing start tag, value, end tag (no new line and tabs inserted) the XmlWriteExt.WriteElementString...

The test procedure public static T XmlSerializerRoundTrip(T item, string expected) uses the extension methods from obsolete XmlExt. I would propose to add format provider fixed version of XmlExt.WriteAttribute into XmlWriterExt...