tools/compiler-tester/xmldocdiff.cs

   1 #if !NET_2_1
   2
   3 using System;
   4 using System.Collections;
   5 using System.Xml;
   6
   7 public class XmlComparer
   8 {
   9         public class ComparisonException : Exception
  10         {
  11                 public ComparisonException (string message)
  12                         : base (message)
  13                 {
  14                 }
  15         }
  16
  17         static bool debug = false;
  18 /*
  19
  20         public static void Main (string [] args)
  21         {
  22                 if (args.Length < 2) {
  23                         Console.Error.WriteLine ("Usage: xmldocdiff [reference_output.xml] [actual_output.xml]");
  24                         return;
  25                 }
  26                 if (args.Length > 2 && args [2].EndsWith ("-debug"))
  27                         debug = true;
  28
  29                 try {
  30                         Run (args[0], args[1]);
  31                 } catch (Exception ex) {
  32                         Console.WriteLine ("FAIL: " + args [1]);
  33                         throw ex;
  34                 }
  35                 Console.WriteLine ("PASS: " + args [1]);
  36         }
  37 */
  38         public static void Compare (string reference, string output)
  39         {
  40                 XmlDocument doc1 = new XmlDocument ();
  41                 doc1.Load (reference);
  42                 XmlDocument doc2 = new XmlDocument ();
  43                 doc2.Load (output);
  44
  45                 XmlNodeList memberList1 = doc1.SelectNodes ("/doc/members/member");
  46                 XmlNodeList memberList2 = doc2.SelectNodes ("/doc/members/member");
  47
  48                 Hashtable namedItems = new Hashtable ();
  49
  50                 foreach (XmlElement el in memberList1)
  51                         namedItems.Add (el.GetAttribute ("name"), el);
  52                 foreach (XmlElement el2 in memberList2) {
  53                         string name = el2.GetAttribute ("name");
  54                         XmlElement el1 = namedItems [name] as XmlElement;
  55                         if (el1 == null) {
  56                                 Report ("Extraneous element found. Name is '{0}'", name);
  57                                 continue;
  58                         }
  59                         namedItems.Remove (name);
  60
  61                         CompareNodes (el1, el2);
  62
  63                 }
  64                 foreach (string name in namedItems.Keys)
  65                         Report ("Expected comment was not found. Name is {0}, XML is {1}", name, ((XmlElement) namedItems [name]).OuterXml);
  66
  67                 // finally, check other nodes than members
  68                 doc1.SelectSingleNode ("/doc/members").RemoveAll ();
  69                 doc2.SelectSingleNode ("/doc/members").RemoveAll ();
  70                 string xml1 = doc1.OuterXml.Replace ("\r", "").Trim ();
  71                 string xml2 = doc2.OuterXml.Replace ("\r", "").Trim ();
  72                 if (xml1 != xml2)
  73                         Report (@"Either of doc, assembly, name, members elements  are different.
  74 doc1: {0}
  75 doc2: {1}", xml1, xml2);
  76         }
  77
  78         private static void CompareNodes (XmlNode n1, XmlNode n2)
  79         {
  80                 if (n2 == null) {
  81                         Report (@"Nodes does not exist:
  82 Node1: {0}", n1.OuterXml);
  83                         return;
  84                 }
  85                 if (n1.NodeType != n2.NodeType) {
  86                         Report (@"Nodes differ:
  87 Node1: {0}
  88 Node2: {1}", n1.OuterXml, n2.OuterXml);
  89                         return;
  90                 }
  91                 if (n1.Name != n2.Name) {
  92                         Report (@"Node names differ:
  93 Node1: {0}
  94 Node2: {1}", n1.OuterXml, n2.OuterXml);
  95                         return;
  96                 }
  97                 if (n1 is XmlElement) {
  98                         for (int i = 0; i < n1.Attributes.Count; i++)
  99                                 CompareNodes (n1.Attributes [i],
 100                                         n2.Attributes [i]);
 101                         for (int i = 0; i < n1.ChildNodes.Count; i++)
 102                                 CompareNodes (n1.ChildNodes [i],
 103                                         n2.ChildNodes [i]);
 104                 }
 105                 if (n1.NodeType != XmlNodeType.Comment && n1.Value != null) {
 106                         string v1 = n1.Value.Trim ().Replace ("\r", "");
 107                         string v2 = n2.Value.Trim ().Replace ("\r", "");
 108                         if (v1 != v2)
 109                                 Report (@"Node values differ:
 110 Node1: {0}
 111 Node2: {1}", v1, v2);
 112                 }
 113         }
 114
 115         static void Report (string format, params object [] args)
 116         {
 117                 if (debug)
 118                         Console.WriteLine (format, args);
 119                 else
 120                         throw new ComparisonException (String.Format (format, args));
 121         }
 122 }
 123
 124 #endif