[Mono-bugs] [Bug 506723] New: SubtreeXmlReader.Close doesn't position the parent reader at the end of the subtree if Read has not been called at least twice on the subtree reader

[bugzilla_noreply at novell.com]

http://bugzilla.novell.com/show_bug.cgi?id=506723


           Summary: SubtreeXmlReader.Close doesn't position the parent
                    reader at the end of the subtree if Read has not been
                    called at least twice on the subtree reader
    Classification: Mono
           Product: Mono: Class Libraries
           Version: SVN
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Sys.XML
        AssignedTo: atsushi at ximian.com
        ReportedBy: lunchtimemama at gmail.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---


According to the MSDN docs, when calling XmlReader.Close on an XmlReader got
with XmlReader.ReadSubtree, the parent XmlReader should be positioned at the
end element of the subtree. In Mono, if you do not call Read on the subtree
reader twice or more, the parent reader will not be advanced to the end of the
subtree.

Test case:

using System;
using System.IO;
using System.Xml;

class MainClass
{
  public static void Main(string[] args)
  {
    var xml =
"<root><thingList><thing>foo</thing><thing>bar</thing></thingList><stuffList><stuff>bat</stuff><stuff>baz</stuff></stuffList></root>";

    using (var string_reader = new StringReader (xml)) {
      using (var xml_reader = XmlReader.Create (string_reader)) {
        xml_reader.ReadToFollowing ("thingList");
        var sub_reader = xml_reader.ReadSubtree ();
        sub_reader.Close ();
        Console.WriteLine ("{0} {1}", xml_reader.NodeType, xml_reader.Name);
      }
    }
    using (var string_reader = new StringReader (xml)) {
      using (var xml_reader = XmlReader.Create (string_reader)) {
        xml_reader.ReadToFollowing ("thingList");
        var sub_reader = xml_reader.ReadSubtree ();
        sub_reader.Read ();
        sub_reader.Close ();
        Console.WriteLine ("{0} {1}", xml_reader.NodeType, xml_reader.Name);
      }
    }
    using (var string_reader = new StringReader (xml)) {
      using (var xml_reader = XmlReader.Create (string_reader)) {
        xml_reader.ReadToFollowing ("thingList");
        var sub_reader = xml_reader.ReadSubtree ();
        sub_reader.Read ();
        sub_reader.Read ();
        sub_reader.Close ();
        Console.WriteLine ("{0} {1}", xml_reader.NodeType, xml_reader.Name);
      }
    }
  }
}

Expected Result (this is what MS .NET prints):

EndElement thingList
EndElement thingList
EndElement thingList

Actual Result (this is what Mono prints):

Element thingList
Element thingList
EndElement thingList

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