mcs/class/System.XML/Test/System.Xml/XmlElementTests.cs

   1 //
   2 // XmlElementTests
   3 //
   4 // Authors:
   5 //   Jason Diamond (jason@injektilo.org)
   6 //   Martin Willemoes Hansen (mwh@sysrq.dk)
   7 //
   8 // (C) 2002 Jason Diamond  http://injektilo.org/
   9 // (C) 2003 Martin Willemoes Hansen
  10 //
  11
  12 using System;
  13 using System.Xml;
  14 using System.IO;
  15 using System.Text;
  16
  17 using NUnit.Framework;
  18
  19 namespace MonoTests.System.Xml
  20 {
  21         [TestFixture]
  22         public class XmlElementTests  : Assertion
  23         {
  24                 private XmlDocument document;
  25
  26                 [SetUp]
  27                 public void GetReady ()
  28                 {
  29                         document = new XmlDocument ();
  30                 }
  31
  32                 private void AssertElement (XmlElement element, string prefix,
  33                                             string localName, string namespaceURI,
  34                                             int attributesCount)
  35                 {
  36                         AssertEquals (prefix != String.Empty ? prefix + ":" + localName : localName, element.Name);
  37                         AssertEquals (prefix, element.Prefix);
  38                         AssertEquals (localName, element.LocalName);
  39                         AssertEquals (namespaceURI, element.NamespaceURI);
  40                         //AssertEquals (attributesCount, element.Attributes.Count);
  41                 }
  42
  43                 // for NodeInserted Event
  44                 private bool Inserted = false;
  45                 private void OnNodeInserted (object o, XmlNodeChangedEventArgs e)
  46                 {
  47                         Inserted = true;
  48                 }
  49
  50                 // for NodeChanged Event
  51                 private bool Changed = false;
  52                 private void OnNodeChanged (object o, XmlNodeChangedEventArgs e)
  53                 {
  54                         Changed = true;
  55                 }
  56
  57                 // for NodeRemoved Event
  58                 private bool Removed = false;
  59                 private void OnNodeRemoved (object o, XmlNodeChangedEventArgs e)
  60                 {
  61                         Removed = true;
  62                 }
  63
  64                 [Test]
  65                 public void CloneNode ()
  66                 {
  67                         XmlElement element = document.CreateElement ("foo");
  68                         XmlElement child = document.CreateElement ("bar");
  69                         XmlElement grandson = document.CreateElement ("baz");
  70
  71                         element.SetAttribute ("attr1", "val1");
  72                         element.SetAttribute ("attr2", "val2");
  73                         element.AppendChild (child);
  74                         child.SetAttribute ("attr3", "val3");
  75                         child.AppendChild (grandson);
  76
  77                         document.AppendChild (element);
  78                         XmlNode deep = element.CloneNode (true);
  79                         // AssertEquals ("These should be the same", deep.OuterXml, element.OuterXml);
  80                         AssertNull ("This is not null", deep.ParentNode);
  81                         Assert ("Copies, not pointers", !Object.ReferenceEquals (element,deep));
  82
  83                         XmlNode shallow = element.CloneNode (false);
  84                         AssertNull ("This is not null", shallow.ParentNode);
  85                         Assert ("Copies, not pointers", !Object.ReferenceEquals (element,shallow));
  86                         AssertEquals ("Shallow clones shalt have no children!", false, shallow.HasChildNodes);
  87                 }
  88
  89                 [Test]
  90                 public void ConstructionAndDefaultAttributes ()
  91                 {
  92                         string dtd = "<!DOCTYPE root [<!ELEMENT root EMPTY><!ATTLIST root foo CDATA 'def'>]>";
  93                         string xml = dtd + "<root />";
  94 //                      XmlValidatingReader xvr = new XmlValidatingReader (new XmlTextReader (xml, XmlNodeType.Document, null));
  95                         XmlDocument doc = new XmlDocument ();
  96                         doc.LoadXml (xml);
  97                         Console.WriteLine (doc.DocumentElement.Attributes.Count);
  98                         Console.WriteLine (doc.CreateElement ("root").Attributes.Count);
  99                         Console.WriteLine (doc.CreateElement ("root2").Attributes.Count);
 100                 }
 101
 102                 [Test]
 103                 public void CreateElement1 ()
 104                 {
 105                         XmlElement element = document.CreateElement ("name");
 106                         AssertElement (element, String.Empty, "name", String.Empty, 0);
 107                 }
 108
 109                 [Test]
 110                 public void CreateElement1WithPrefix ()
 111                 {
 112                         XmlElement element = document.CreateElement ("prefix:localName");
 113                         AssertElement (element, "prefix", "localName", String.Empty, 0);
 114                 }
 115
 116                 [Test]
 117                 public void CreateElement2 ()
 118                 {
 119                         XmlElement element = document.CreateElement ("qualifiedName", "namespaceURI");
 120                         AssertElement (element, String.Empty, "qualifiedName",
 121                                        "namespaceURI", 0);
 122                 }
 123
 124                 [Test]
 125                 public void CreateElement2WithPrefix ()
 126                 {
 127                         XmlElement element = document.CreateElement ("prefix:localName", "namespaceURI");
 128                         AssertElement (element, "prefix", "localName", "namespaceURI", 0);
 129                 }
 130
 131                 [Test]
 132                 public void CreateElement3 ()
 133                 {
 134                         XmlElement element = document.CreateElement ("prefix", "localName", "namespaceURI");
 135                         AssertElement (element, "prefix", "localName", "namespaceURI", 0);
 136                 }
 137
 138                 [Test]
 139                 public void CreateElement3WithNullNamespace ()
 140                 {
 141                         // bug #26855, NamespaceURI should NEVER be null.
 142                         XmlElement element = document.CreateElement (null, "localName", null);
 143                         AssertElement (element, String.Empty, "localName", String.Empty, 0);
 144                 }
 145
 146                 [Test]
 147                 public void InnerAndOuterXml ()
 148                 {
 149                         XmlElement element;
 150                         XmlText text;
 151                         XmlComment comment;
 152
 153                         element = document.CreateElement ("foo");
 154                         AssertEquals (String.Empty, element.InnerXml);
 155                         AssertEquals ("<foo />", element.OuterXml);
 156
 157                         text = document.CreateTextNode ("bar");
 158                         element.AppendChild (text);
 159                         AssertEquals ("bar", element.InnerXml);
 160                         AssertEquals ("<foo>bar</foo>", element.OuterXml);
 161
 162                         element.SetAttribute ("baz", "quux");
 163                         AssertEquals ("bar", element.InnerXml);
 164                         AssertEquals ("<foo baz=\"quux\">bar</foo>", element.OuterXml);
 165
 166                         comment = document.CreateComment ("squonk");
 167                         element.AppendChild (comment);
 168                         AssertEquals ("bar<!--squonk-->", element.InnerXml);
 169                         AssertEquals ("<foo baz=\"quux\">bar<!--squonk--></foo>", element.OuterXml);
 170
 171                         element.RemoveAll();
 172                         element.AppendChild(document.CreateElement("hoge"));
 173                         AssertEquals ("<hoge />", element.InnerXml);
 174                 }
 175
 176                 [Test]
 177                 public void SetGetAttribute ()
 178                 {
 179                         XmlElement element = document.CreateElement ("foo");
 180                         element.SetAttribute ("attr1", "val1");
 181                         element.SetAttribute ("attr2", "val2");
 182                         AssertEquals ("val1", element.GetAttribute ("attr1"));
 183                         AssertEquals ("val2", element.GetAttribute ("attr2"));
 184                 }
 185
 186                 [Test]
 187                 public void GetElementsByTagNameNoNameSpace ()
 188                 {
 189                         string xml = @"<library><book><title>XML Fun</title><author>John Doe</author>
 190                                 <price>34.95</price></book><book><title>Bear and the Dragon</title>
 191                                 <author>Tom Clancy</author><price>6.95</price></book><book>
 192                                 <title>Bourne Identity</title><author>Robert Ludlum</author>
 193                                 <price>9.95</price></book><Fluffer><Nutter><book>
 194                                 <title>Bourne Ultimatum</title><author>Robert Ludlum</author>
 195                                 <price>9.95</price></book></Nutter></Fluffer></library>";
 196
 197                         MemoryStream memoryStream = new MemoryStream (Encoding.UTF8.GetBytes (xml));
 198                         document = new XmlDocument ();
 199                         document.Load (memoryStream);
 200                         XmlNodeList libraryList = document.GetElementsByTagName ("library");
 201                         XmlNode xmlNode = libraryList.Item (0);
 202                         XmlElement xmlElement = xmlNode as XmlElement;
 203                         XmlNodeList bookList = xmlElement.GetElementsByTagName ("book");
 204                         AssertEquals ("GetElementsByTagName (string) returned incorrect count.", 4, bookList.Count);
 205                 }
 206
 207                 [Test]
 208                 public void GetElementsByTagNameUsingNameSpace ()
 209                 {
 210                         StringBuilder xml = new StringBuilder ();
 211                         xml.Append ("<?xml version=\"1.0\" ?><library xmlns:North=\"http://www.foo.com\" ");
 212                         xml.Append ("xmlns:South=\"http://www.goo.com\"><North:book type=\"non-fiction\"> ");
 213                         xml.Append ("<North:title type=\"intro\">XML Fun</North:title> " );
 214                         xml.Append ("<North:author>John Doe</North:author> " );
 215                         xml.Append ("<North:price>34.95</North:price></North:book> " );
 216                         xml.Append ("<South:book type=\"fiction\"> " );
 217                         xml.Append ("<South:title>Bear and the Dragon</South:title> " );
 218                         xml.Append ("<South:author>Tom Clancy</South:author> " );
 219                         xml.Append ("<South:price>6.95</South:price></South:book> " );
 220                         xml.Append ("<South:book type=\"fiction\"><South:title>Bourne Identity</South:title> " );
 221                         xml.Append ("<South:author>Robert Ludlum</South:author> " );
 222                         xml.Append ("<South:price>9.95</South:price></South:book></library>");
 223
 224                         MemoryStream memoryStream = new MemoryStream (Encoding.UTF8.GetBytes (xml.ToString ()));
 225                         document = new XmlDocument ();
 226                         document.Load (memoryStream);
 227                         XmlNodeList libraryList = document.GetElementsByTagName ("library");
 228                         XmlNode xmlNode = libraryList.Item (0);
 229                         XmlElement xmlElement = xmlNode as XmlElement;
 230                         XmlNodeList bookList = xmlElement.GetElementsByTagName ("book", "http://www.foo.com");
 231                         AssertEquals ("GetElementsByTagName (string, uri) returned incorrect count.", 1, bookList.Count);
 232                 }
 233
 234                 [Test]
 235                 public void GetElementsByTagNameNs2 ()
 236                 {
 237                         document.LoadXml (@"<root>\r
 238                         <x:a xmlns:x='urn:foo' id='a'>\r
 239                         <y:a xmlns:y='urn:foo' id='b'/>\r
 240                         <x:a id='c' />\r
 241                         <z id='d' />\r
 242                         text node\r
 243                         <?a processing instruction ?>\r
 244                         <x:w id='e'/>\r
 245                         </x:a>\r
 246                         </root>");\r
 247                         // id='b' has different prefix. Should not caught by (name),\r
 248                         // while should caught by (name, ns).\r
 249                         XmlNodeList nl = document.DocumentElement.GetElementsByTagName ("x:a");\r
 250                         AssertEquals (2, nl.Count);\r
 251                         AssertEquals ("a", nl [0].Attributes ["id"].Value);\r
 252                         AssertEquals ("c", nl [1].Attributes ["id"].Value);\r
 253
 254                         nl = document.DocumentElement.GetElementsByTagName ("a", "urn:foo");\r
 255                         AssertEquals (3, nl.Count);\r
 256                         AssertEquals ("a", nl [0].Attributes ["id"].Value);\r
 257                         AssertEquals ("b", nl [1].Attributes ["id"].Value);\r
 258                         AssertEquals ("c", nl [2].Attributes ["id"].Value);\r
 259
 260                         // name wildcard
 261                         nl = document.DocumentElement.GetElementsByTagName ("*");\r
 262                         AssertEquals (5, nl.Count);\r
 263                         AssertEquals ("a", nl [0].Attributes ["id"].Value);\r
 264                         AssertEquals ("b", nl [1].Attributes ["id"].Value);\r
 265                         AssertEquals ("c", nl [2].Attributes ["id"].Value);\r
 266                         AssertEquals ("d", nl [3].Attributes ["id"].Value);\r
 267                         AssertEquals ("e", nl [4].Attributes ["id"].Value);\r
 268
 269                         // wildcard - local and ns
 270                         nl = document.DocumentElement.GetElementsByTagName ("*", "*");\r
 271                         AssertEquals (5, nl.Count);\r
 272                         AssertEquals ("a", nl [0].Attributes ["id"].Value);\r
 273                         AssertEquals ("b", nl [1].Attributes ["id"].Value);\r
 274                         AssertEquals ("c", nl [2].Attributes ["id"].Value);\r
 275                         AssertEquals ("d", nl [3].Attributes ["id"].Value);\r
 276                         AssertEquals ("e", nl [4].Attributes ["id"].Value);\r
 277
 278                         // namespace wildcard - namespace
 279                         nl = document.DocumentElement.GetElementsByTagName ("*", "urn:foo");\r
 280                         AssertEquals (4, nl.Count);\r
 281                         AssertEquals ("a", nl [0].Attributes ["id"].Value);\r
 282                         AssertEquals ("b", nl [1].Attributes ["id"].Value);\r
 283                         AssertEquals ("c", nl [2].Attributes ["id"].Value);\r
 284                         AssertEquals ("e", nl [3].Attributes ["id"].Value);\r
 285
 286                         // namespace wildcard - local only. I dare say, such usage is not XML-ish!
 287                         nl = document.DocumentElement.GetElementsByTagName ("a", "*");\r
 288                         AssertEquals (3, nl.Count);\r
 289                         AssertEquals ("a", nl [0].Attributes ["id"].Value);\r
 290                         AssertEquals ("b", nl [1].Attributes ["id"].Value);\r
 291                         AssertEquals ("c", nl [2].Attributes ["id"].Value);\r
 292                 }
 293
 294                 [Test]
 295                 public void OuterXmlWithNamespace ()
 296                 {
 297                         XmlElement element = document.CreateElement ("foo", "bar", "#foo");
 298                         AssertEquals ("<foo:bar xmlns:foo=\"#foo\" />", element.OuterXml);
 299                 }
 300
 301                 [Test]
 302                 public void RemoveAllAttributes ()
 303                 {
 304                         StringBuilder xml = new StringBuilder ();
 305                         xml.Append ("<?xml version=\"1.0\" ?><library><book type=\"non-fiction\" price=\"34.95\"> ");
 306                         xml.Append ("<title type=\"intro\">XML Fun</title> " );
 307                         xml.Append ("<author>John Doe</author></book></library>");
 308
 309                         MemoryStream memoryStream = new MemoryStream (Encoding.UTF8.GetBytes (xml.ToString ()));
 310                         document = new XmlDocument ();
 311                         document.Load (memoryStream);
 312                         XmlNodeList bookList = document.GetElementsByTagName ("book");
 313                         XmlNode xmlNode = bookList.Item (0);
 314                         XmlElement xmlElement = xmlNode as XmlElement;
 315                         xmlElement.RemoveAllAttributes ();
 316                         AssertEquals ("attributes not properly removed.", false, xmlElement.HasAttribute ("type"));
 317                 }
 318
 319                 [Test]
 320                 public void RemoveDoesNotRemoveDefaultAttributes ()
 321                 {
 322                         string dtd = "<!DOCTYPE root [<!ELEMENT root EMPTY><!ATTLIST root   foo CDATA 'def'   bar CDATA #IMPLIED>]>";
 323                         string xml = dtd + "<root bar='baz' />";
 324                         XmlValidatingReader xvr = new XmlValidatingReader (xml, XmlNodeType.Document, null);
 325                         document.Load (xvr);
 326                         // RemoveAll
 327                         AssertNotNull (document.DocumentElement);
 328                         AssertEquals (2, document.DocumentElement.Attributes.Count);
 329                         AssertEquals ("baz", document.DocumentElement.GetAttribute ("bar"));
 330                         AssertEquals ("def", document.DocumentElement.GetAttribute ("foo"));
 331                         document.DocumentElement.RemoveAll ();
 332                         AssertEquals (1, document.DocumentElement.Attributes.Count);
 333                         AssertEquals ("def", document.DocumentElement.GetAttribute ("foo"));
 334                         AssertEquals (String.Empty, document.DocumentElement.GetAttribute ("bar"));
 335
 336                         // RemoveAllAttributes
 337                         xvr = new XmlValidatingReader (xml, XmlNodeType.Document, null);
 338                         document.Load (xvr);
 339                         document.DocumentElement.RemoveAllAttributes ();
 340                         AssertEquals (1, document.DocumentElement.Attributes.Count);
 341
 342                         // RemoveAttribute(name)
 343                         xvr = new XmlValidatingReader (xml, XmlNodeType.Document, null);
 344                         document.Load (xvr);
 345                         document.DocumentElement.RemoveAttribute ("foo");
 346                         AssertEquals (2, document.DocumentElement.Attributes.Count);
 347
 348                         // RemoveAttribute(name, ns)
 349                         xvr = new XmlValidatingReader (xml, XmlNodeType.Document, null);
 350                         document.Load (xvr);
 351                         document.DocumentElement.RemoveAttribute ("foo", String.Empty);
 352                         AssertEquals (2, document.DocumentElement.Attributes.Count);
 353
 354                         // RemoveAttributeAt
 355                         xvr = new XmlValidatingReader (xml, XmlNodeType.Document, null);
 356                         document.Load (xvr);
 357                         document.DocumentElement.RemoveAttributeAt (1);
 358                         AssertEquals (2, document.DocumentElement.Attributes.Count);
 359
 360                         // RemoveAttributeNode
 361                         xvr = new XmlValidatingReader (xml, XmlNodeType.Document, null);
 362                         document.Load (xvr);
 363                         document.DocumentElement.RemoveAttributeNode (document.DocumentElement.Attributes [1]);
 364                         AssertEquals (2, document.DocumentElement.Attributes.Count);
 365
 366                         // RemoveAttributeNode(name, ns)
 367                         xvr = new XmlValidatingReader (xml, XmlNodeType.Document, null);
 368                         document.Load (xvr);
 369                         document.DocumentElement.RemoveAttributeNode ("foo", String.Empty);
 370                         AssertEquals (2, document.DocumentElement.Attributes.Count);
 371                 }
 372
 373                 [Test]
 374                 public void SetAttributeNode ()
 375                 {
 376                         XmlDocument xmlDoc = new XmlDocument ();
 377                         XmlElement xmlEl = xmlDoc.CreateElement ("TestElement");
 378                         XmlAttribute xmlAttribute = xmlEl.SetAttributeNode ("attr1", "namespace1");
 379                         XmlAttribute xmlAttribute2 = xmlEl.SetAttributeNode ("attr2", "namespace2");
 380                         AssertEquals ("attribute name not properly created.", true, xmlAttribute.Name.Equals ("attr1"));
 381                         AssertEquals ("attribute namespace not properly created.", true, xmlAttribute.NamespaceURI.Equals ("namespace1"));
 382                 }
 383
 384                 [Test]
 385                 [ExpectedException (typeof (XmlException))]
 386                 public void SetAttributeNodeError ()
 387                 {
 388                         XmlDocument doc = new XmlDocument ();
 389                         doc.LoadXml ("<root xmlns:x='urn:foo'/>");
 390                         doc.DocumentElement.SetAttributeNode ("x:lang", "urn:foo");
 391                 }
 392
 393                 [Test]
 394                 public void SetAttributeXmlns ()
 395                 {
 396                         // should not affect Element node's xmlns
 397                         XmlElement el = document.CreateElement ("root");
 398                         el.SetAttribute ("xmlns", "urn:foo");
 399                         AssertEquals (String.Empty, el.NamespaceURI);
 400                 }
 401
 402                 [Test]
 403                 public void InnerTextAndEvent ()
 404                 {
 405                         XmlDocument doc = new XmlDocument ();
 406                         doc.LoadXml ("<root><child>text</child><child2><![CDATA[cdata]]></child2></root>");
 407                         doc.NodeInserted += new XmlNodeChangedEventHandler (
 408                                 OnNodeInserted);
 409                         doc.NodeRemoved += new XmlNodeChangedEventHandler (
 410                                 OnNodeRemoved);
 411                         // If only one child of the element is Text node,
 412                         // then no events are fired.
 413                         doc.DocumentElement.FirstChild.InnerText = "no events fired.";
 414                         AssertEquals ("NoInsertEventFired", false, Inserted);
 415                         AssertEquals ("NoRemoveEventFired", false, Removed);
 416                         AssertEquals ("SetInnerTextToSingleText", "no events fired.", doc.DocumentElement.FirstChild.InnerText);
 417                         Inserted = false;
 418                         Removed = false;
 419
 420                         // if only one child of the element is CDataSection,
 421                         // then events are fired.
 422                         doc.DocumentElement.LastChild.InnerText = "events are fired.";
 423                         AssertEquals ("InsertedEventFired", true, Inserted);
 424                         AssertEquals ("RemovedEventFired", true, Removed);
 425                         AssertEquals ("SetInnerTextToCDataSection", "events are fired.", doc.DocumentElement.LastChild.InnerText);
 426                 }
 427
 428                 [Test]
 429                 public void InnerXmlSetter ()
 430                 {
 431                         XmlDocument doc = new XmlDocument ();
 432                         doc.LoadXml ("<root/>");
 433                         XmlElement el =  doc.DocumentElement;
 434                         AssertNull ("#Simple", el.FirstChild);
 435                         el.InnerXml = "<foo><bar att='baz'/></foo>";
 436                         XmlElement child = el.FirstChild as XmlElement;
 437                         AssertNotNull ("#Simple.Child", child);
 438                         AssertEquals ("#Simple.Child.Name", "foo", child.LocalName);
 439
 440                         XmlElement grandchild = child.FirstChild as XmlElement;
 441                         AssertNotNull ("#Simple.GrandChild", grandchild);
 442                         AssertEquals ("#Simple.GrandChild.Name", "bar", grandchild.LocalName);
 443                         AssertEquals ("#Simple.GrandChild.Attr", "baz", grandchild.GetAttribute ("att"));
 444
 445                         doc.LoadXml ("<root xmlns='NS0' xmlns:ns1='NS1'><foo/><ns1:bar/><ns2:bar xmlns:ns2='NS2' /></root>");
 446                         el = doc.DocumentElement.FirstChild.NextSibling as XmlElement;  // ns1:bar
 447                         AssertNull ("#Namespaced.Prepare", el.FirstChild);
 448                         el.InnerXml = "<ns1:baz />";
 449                         AssertNotNull ("#Namespaced.Child", el.FirstChild);
 450                         AssertEquals ("#Namespaced.Child.Name", "baz", el.FirstChild.LocalName);
 451                         AssertEquals ("#Namespaced.Child.NSURI", "NS1", el.FirstChild.NamespaceURI);    // important!
 452
 453                         el.InnerXml = "<hoge />";
 454                         AssertEquals ("#Namespaced.VerifyPreviousCleared", "hoge", el.FirstChild.Name);
 455                 }
 456
 457                 [Test]
 458                 public void IsEmpty ()
 459                 {
 460                         document.LoadXml ("<root><foo/><bar></bar></root>");
 461                         Assertion.AssertEquals ("Empty", true, ((XmlElement) document.DocumentElement.FirstChild).IsEmpty);
 462                         Assertion.AssertEquals ("Empty", false, ((XmlElement) document.DocumentElement.LastChild).IsEmpty);
 463                 }
 464
 465                 [Test]
 466                 public void RemoveAttribute ()
 467                 {
 468                         string xlinkURI = "http://www.w3.org/1999/XLink";
 469                         XmlDocument doc = new XmlDocument ();
 470                         doc.LoadXml ("<root a1='1' a2='2' xlink:href='urn:foo' xmlns:xlink='" + xlinkURI + "' />");
 471
 472                         XmlElement el =  doc.DocumentElement;
 473                         el.RemoveAttribute ("a1");
 474                         AssertNull ("RemoveAttribute", el.GetAttributeNode ("a1"));
 475                         el.RemoveAttribute ("xlink:href");
 476                         AssertNull ("RemoveAttribute", el.GetAttributeNode ("href", xlinkURI));
 477                         el.RemoveAllAttributes ();
 478                         AssertNull ("RemoveAllAttributes", el.GetAttributeNode ("a2"));
 479                 }
 480
 481                 [Test]
 482                 public void WriteToWithDefaultNamespace ()
 483                 {
 484                         XmlDocument doc = new XmlDocument ();
 485                         doc.LoadXml ("<RetrievalElement URI=\"\" xmlns=\"http://www.w3.org/2000/09/xmldsig#\" />");
 486                         StringWriter sw = new StringWriter ();
 487                         XmlTextWriter xtw = new XmlTextWriter (sw);
 488                         doc.DocumentElement.WriteTo (xtw);
 489                         AssertEquals ("<RetrievalElement URI=\"\" xmlns=\"http://www.w3.org/2000/09/xmldsig#\" />", sw.ToString());
 490                 }
 491
 492                 [Test]
 493                 public void WriteToMakesNonsenseForDefaultNSChildren ()
 494                 {
 495                         XmlDocument d = new XmlDocument ();\r
 496                         XmlElement x = d.CreateElement ("root");\r
 497                         d.AppendChild (x);\r
 498                         XmlElement a = d.CreateElement ("a");\r
 499                         XmlElement b = d.CreateElement ("b");\r
 500                         b.SetAttribute ("xmlns","probe");\r
 501                         x.AppendChild (a);\r
 502                         x.AppendChild (b);\r
 503                         XmlElement b2 = d.CreateElement ("p2", "b2", "");\r
 504                         b.AppendChild (b2);\r
 505                         AssertEquals ("<root><a /><b xmlns=\"probe\"><b2 /></b></root>", d.OuterXml);\r
 506                 }
 507
 508                 [Test]
 509                 public void WriteToWithDeletedNamespacePrefix ()
 510                 {
 511                         XmlDocument doc = new XmlDocument ();
 512                         doc.LoadXml ("<root xmlns:foo='urn:dummy'><foo foo:bar='baz' /></root>");
 513                         doc.DocumentElement.RemoveAllAttributes ();
 514
 515                         Assert (doc.DocumentElement.FirstChild.OuterXml.IndexOf("xmlns:foo") > 0);
 516                 }
 517
 518                 [Test]
 519                 public void WriteToWithDifferentNamespaceAttributes ()
 520                 {
 521                         XmlDocument doc = new XmlDocument ();
 522                         doc.LoadXml ("<root xmlns:foo='urn:dummy' xmlns:html='http://www.w3.org/1999/xhtml' html:style='font-size: 1em'></root>");
 523                         Assert (doc.OuterXml.IndexOf ("xmlns:html=\"http://www.w3.org/1999/xhtml\"") > 0);
 524                 }
 525
 526                 [Test]
 527                 public void WriteToDefaultAttribute ()
 528                 {
 529                         // default attributes should be ignored.
 530
 531                         string dtd = "<!DOCTYPE root[<!ATTLIST root hoge CDATA 'hoge-def'><!ENTITY foo 'ent-foo'>]>";
 532                         string xml = dtd + "<root>&foo;</root>";
 533                         XmlValidatingReader xvr = new XmlValidatingReader (xml, XmlNodeType.Document,null);
 534                         xvr.EntityHandling = EntityHandling.ExpandCharEntities;
 535                         xvr.ValidationType = ValidationType.None;
 536                         document.Load (xvr);
 537                         StringWriter sw = new StringWriter ();
 538                         XmlTextWriter xtw = new XmlTextWriter (sw);
 539                         document.DocumentElement.WriteTo (xtw);
 540                         AssertEquals ("<root>&foo;</root>", sw.ToString ());
 541                 }
 542         }
 543 }