141 lines
3.8 KiB
C#
141 lines
3.8 KiB
C#
//
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// xmldocdiff.cs
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//
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// Author:
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// Marek Safar (marek.safar@gmail.com)
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//
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// Copyright (C) 2012 Xamarin Inc (http://www.xamarin.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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#if !MOBILE
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Xml;
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using System.Linq;
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public class XmlComparer
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{
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public class ComparisonException : Exception
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{
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public ComparisonException (string message)
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: base (message)
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{
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}
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}
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static readonly bool debug = false;
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readonly string start;
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public XmlComparer (string startNode)
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{
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this.start = "/" + startNode;
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}
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public void Compare (string reference, string output)
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{
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XmlDocument doc1 = new XmlDocument ();
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doc1.Load (reference);
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XmlDocument doc2 = new XmlDocument ();
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doc2.Load (output);
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var memberList1 = doc1.SelectSingleNode (start);
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var memberList2 = doc2.SelectSingleNode (start);
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CompareNodes (memberList1, memberList2);
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}
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static bool CompareNodes (XmlNode reference, XmlNode output)
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{
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List<Tuple<string, XmlNode>> ref_nodes = new List<Tuple<string, XmlNode>> ();
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foreach (XmlNode node in reference.ChildNodes) {
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if (node.NodeType == XmlNodeType.Comment)
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continue;
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ref_nodes.Add (Tuple.Create (node.Name, node));
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}
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foreach (XmlNode node in output.ChildNodes) {
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if (node.NodeType == XmlNodeType.Comment)
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continue;
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Tuple<string, XmlNode> found = null;
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foreach (var entry in ref_nodes.Where (l => l.Item1 == node.Name)) {
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if (node.Attributes == null) {
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if (node.Attributes != entry.Item2.Attributes)
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continue;
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} else {
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List<XmlAttribute> attrs = node.Attributes.Cast<XmlAttribute> ().ToList ();
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XmlAttribute missing = null;
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foreach (XmlAttribute attr in entry.Item2.Attributes) {
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var match = attrs.Find (l => l.Name == attr.Name);
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if (match == null) {
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missing = attr;
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break;
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}
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if (match.Value == attr.Value)
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attrs.Remove (match);
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}
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if (missing != null || attrs.Count > 0) {
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continue;
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}
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}
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if (node.HasChildNodes != entry.Item2.HasChildNodes)
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continue;
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if (!node.HasChildNodes || CompareNodes (node, entry.Item2)) {
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found = entry;
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break;
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}
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}
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if (found == null) {
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Report ("Expected node: " + node.OuterXml);
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return false;
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}
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ref_nodes.Remove (found);
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}
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if (ref_nodes.Count > 0) {
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Report ("Unexpected node: " + ref_nodes[0].Item2.OuterXml);
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return false;
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}
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return true;
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}
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static void Report (string format, params object[] args)
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{
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if (debug)
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Console.WriteLine (format, args);
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else
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throw new ComparisonException (String.Format (format, args));
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}
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}
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#endif
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