Order of attributes matter to XNode.DeepEquals

[jahav]

The description is misleading: "Two XElement nodes are equal if they have the same tag name, the same set of attributes with the same values" would suggest that order of attributes doesn't matter (since it is a set), but the order does matter.

E.g. following will result in false, i.e. noequivalent XMLs.
XElement xmlTree1 = new XElement("Root",
new XAttribute("Att1", 1),
new XAttribute("Att2", 2)
);
XElement xmlTree2 = new XElement("Root",
new XAttribute("Att2", 2),
new XAttribute("Att1", 1)
);
Console.WriteLine(XNode.DeepEquals(xmlTree1, xmlTree2));

I am not sure how exactly are the attributes compared, but perhaps "two equal length sequences of equal attributes" is closer to truth.

EDIT:
The reference source says that my description of attribute equality is basically accurate, attributes are compared from first to last on both sides and each one must have same name and value:
https://referencesource.microsoft.com/#System.Xml.Linq/System/Xml/Linq/XLinq.cs,d4ee71a752e8b485

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• ID: 5b409bae-8bca-83ad-c127-b43f5c626954
• Version Independent ID: bd83ab61-3e42-c0aa-7cd6-b5ee081ac63c
• Content: XNode.DeepEquals(XNode, XNode) Method (System.Xml.Linq)
• Content Source: xml/System.Xml.Linq/XNode.xml
• Product: dotnet-api
• GitHub Login: @dotnet-bot
• Microsoft Alias: dotnetcontent

[LeonidVasilyev]

Relevant excerpt from Extensible Markup Language (XML) 1.0 (Fifth Edition):

[Definition: The Name-AttValue pairs are referred to as the attribute specifications of the element], [Definition: with the Name in each pair referred to as the attribute name ] and [Definition: the content of the AttValue (the text between the ' or " delimiters) as the attribute value.] Note that the order of attribute specifications in a start-tag or empty-element tag is not significant.