tests/xml/xmltest.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/xml/xmltest.cpp
   3 // Purpose:     XML classes unit test
   4 // Author:      Vaclav Slavik
   5 // Created:     2008-03-29
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2008 Vaclav Slavik
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 // ----------------------------------------------------------------------------
  11 // headers
  12 // ----------------------------------------------------------------------------
  13
  14 #include "testprec.h"
  15
  16 #ifdef __BORLANDC__
  17     #pragma hdrstop
  18 #endif
  19
  20 #ifndef WX_PRECOMP
  21     #include "wx/wx.h"
  22 #endif // WX_PRECOMP
  23
  24 #include "wx/xml/xml.h"
  25 #include "wx/scopedptr.h"
  26 #include "wx/sstream.h"
  27
  28 #include <stdarg.h>
  29
  30 // ----------------------------------------------------------------------------
  31 // helpers for testing XML tree
  32 // ----------------------------------------------------------------------------
  33
  34 namespace
  35 {
  36
  37 void CheckXml(const wxXmlNode *n, ...)
  38 {
  39     va_list args;
  40     va_start(args, n);
  41
  42     wxXmlNode *child = n->GetChildren();
  43
  44     for (;;)
  45     {
  46         const char *childName = va_arg(args, char*);
  47         if ( childName == NULL )
  48             break;
  49
  50         CPPUNIT_ASSERT( child );
  51         CPPUNIT_ASSERT_EQUAL( childName, child->GetName() );
  52         CPPUNIT_ASSERT( child->GetChildren() == NULL );
  53         CPPUNIT_ASSERT( child->GetParent() == n );
  54
  55         child = child->GetNext();
  56     }
  57
  58     va_end(args);
  59
  60     CPPUNIT_ASSERT( child == NULL ); // no more children
  61 }
  62
  63 } // anon namespace
  64
  65 // ----------------------------------------------------------------------------
  66 // test class
  67 // ----------------------------------------------------------------------------
  68
  69 class XmlTestCase : public CppUnit::TestCase
  70 {
  71 public:
  72     XmlTestCase() {}
  73
  74 private:
  75     CPPUNIT_TEST_SUITE( XmlTestCase );
  76         CPPUNIT_TEST( InsertChild );
  77         CPPUNIT_TEST( InsertChildAfter );
  78         CPPUNIT_TEST( LoadSave );
  79         CPPUNIT_TEST( CDATA );
  80         CPPUNIT_TEST( PI );
  81         CPPUNIT_TEST( Escaping );
  82         CPPUNIT_TEST( DetachRoot );
  83         CPPUNIT_TEST( AppendToProlog );
  84         CPPUNIT_TEST( SetRoot );
  85     CPPUNIT_TEST_SUITE_END();
  86
  87     void InsertChild();
  88     void InsertChildAfter();
  89     void LoadSave();
  90     void CDATA();
  91     void PI();
  92     void Escaping();
  93     void DetachRoot();
  94     void AppendToProlog();
  95     void SetRoot();
  96
  97     DECLARE_NO_COPY_CLASS(XmlTestCase)
  98 };
  99
 100 // register in the unnamed registry so that these tests are run by default
 101 CPPUNIT_TEST_SUITE_REGISTRATION( XmlTestCase );
 102
 103 // also include in its own registry so that these tests can be run alone
 104 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( XmlTestCase, "XmlTestCase" );
 105
 106 void XmlTestCase::InsertChild()
 107 {
 108     wxScopedPtr<wxXmlNode> root(new wxXmlNode(wxXML_ELEMENT_NODE, "root"));
 109     root->AddChild(new wxXmlNode(wxXML_ELEMENT_NODE, "1"));
 110     wxXmlNode *two = new wxXmlNode(wxXML_ELEMENT_NODE, "2");
 111     root->AddChild(two);
 112     root->AddChild(new wxXmlNode(wxXML_ELEMENT_NODE, "3"));
 113     CheckXml(root.get(), "1", "2", "3", NULL);
 114
 115     // check inserting in front:
 116     root->InsertChild(new wxXmlNode(wxXML_ELEMENT_NODE, "A"), NULL);
 117     CheckXml(root.get(), "A", "1", "2", "3", NULL);
 118     root->InsertChild(new wxXmlNode(wxXML_ELEMENT_NODE, "B"), root->GetChildren());
 119     CheckXml(root.get(), "B", "A", "1", "2", "3", NULL);
 120
 121     // and in the middle:
 122     root->InsertChild(new wxXmlNode(wxXML_ELEMENT_NODE, "C"), two);
 123     CheckXml(root.get(), "B", "A", "1", "C", "2", "3", NULL);
 124 }
 125
 126 void XmlTestCase::InsertChildAfter()
 127 {
 128     wxScopedPtr<wxXmlNode> root(new wxXmlNode(wxXML_ELEMENT_NODE, "root"));
 129
 130     root->InsertChildAfter(new wxXmlNode(wxXML_ELEMENT_NODE, "1"), NULL);
 131     CheckXml(root.get(), "1", NULL);
 132
 133     wxXmlNode *two = new wxXmlNode(wxXML_ELEMENT_NODE, "2");
 134     root->AddChild(two);
 135     wxXmlNode *three = new wxXmlNode(wxXML_ELEMENT_NODE, "3");
 136     root->AddChild(three);
 137     CheckXml(root.get(), "1", "2", "3", NULL);
 138
 139     // check inserting in the middle:
 140     root->InsertChildAfter(new wxXmlNode(wxXML_ELEMENT_NODE, "A"), root->GetChildren());
 141     CheckXml(root.get(), "1", "A", "2", "3", NULL);
 142     root->InsertChildAfter(new wxXmlNode(wxXML_ELEMENT_NODE, "B"), two);
 143     CheckXml(root.get(), "1", "A", "2", "B", "3", NULL);
 144
 145     // and at the end:
 146     root->InsertChildAfter(new wxXmlNode(wxXML_ELEMENT_NODE, "C"), three);
 147     CheckXml(root.get(), "1", "A", "2", "B", "3", "C", NULL);
 148 }
 149
 150 void XmlTestCase::LoadSave()
 151 {
 152     // NB: this is not real XRC but rather some XRC-like XML fragment which
 153     //     exercises different XML constructs to check that they're saved back
 154     //     correctly
 155     //
 156     // Also note that there should be no blank lines here as they disappear
 157     // after saving.
 158     const char *xmlText =
 159 "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n"
 160 "<resource xmlns=\"http://www.wxwidgets.org/wxxrc\" version=\"2.3.0.1\">\n"
 161 "  <!-- Test comment -->\n"
 162 "  <object class=\"wxDialog\" name=\"my_dialog\">\n"
 163 "    <children>\n"
 164 "      <grandchild id=\"1\"/>\n"
 165 "    </children>\n"
 166 "    <subobject/>\n"
 167 "  </object>\n"
 168 "</resource>\n"
 169     ;
 170
 171     wxStringInputStream sis(xmlText);
 172
 173     wxXmlDocument doc;
 174     CPPUNIT_ASSERT( doc.Load(sis) );
 175
 176     wxStringOutputStream sos;
 177     CPPUNIT_ASSERT( doc.Save(sos) );
 178
 179     CPPUNIT_ASSERT_EQUAL( xmlText, sos.GetString() );
 180
 181
 182 #if wxUSE_UNICODE
 183     const char *utf8xmlText =
 184 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
 185 "<word>\n"
 186 "  <lang name=\"fr\">\xc3\xa9t\xc3\xa9</lang>\n"
 187 "  <lang name=\"ru\">\xd0\xbb\xd0\xb5\xd1\x82\xd0\xbe</lang>\n"
 188 "</word>\n"
 189     ;
 190
 191     wxStringInputStream sis8(wxString::FromUTF8(utf8xmlText));
 192     CPPUNIT_ASSERT( doc.Load(sis8) );
 193
 194     // this contents can't be represented in Latin-1 as it contains Cyrillic
 195     // letters
 196     doc.SetFileEncoding("ISO-8859-1");
 197     CPPUNIT_ASSERT( !doc.Save(sos) );
 198
 199     // but it should work in UTF-8
 200     wxStringOutputStream sos8;
 201     doc.SetFileEncoding("UTF-8");
 202     CPPUNIT_ASSERT( doc.Save(sos8) );
 203     CPPUNIT_ASSERT_EQUAL( wxString(utf8xmlText),
 204                           wxString(sos8.GetString().ToUTF8()) );
 205 #endif // wxUSE_UNICODE
 206
 207     const char *xmlTextProlog =
 208 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
 209 "<!-- Prolog comment -->\n"
 210 "<?xml-stylesheet href=\"style.css\" type=\"text/css\"?>\n"
 211 "<resource xmlns=\"http://www.wxwidgets.org/wxxrc\" version=\"2.3.0.1\">\n"
 212 "  <!-- Test comment -->\n"
 213 "  <object class=\"wxDialog\" name=\"my_dialog\">\n"
 214 "    <children>\n"
 215 "      <grandchild id=\"1\"/>\n"
 216 "    </children>\n"
 217 "    <subobject/>\n"
 218 "  </object>\n"
 219 "</resource>\n"
 220 "<!-- Trailing comment -->\n"
 221     ;
 222
 223     wxStringInputStream sisp(xmlTextProlog);
 224     CPPUNIT_ASSERT( doc.Load(sisp, "UTF-8") );
 225
 226     wxStringOutputStream sosp;
 227     CPPUNIT_ASSERT( doc.Save(sosp) );
 228
 229     CPPUNIT_ASSERT_EQUAL( xmlTextProlog, sosp.GetString() );
 230 }
 231
 232 void XmlTestCase::CDATA()
 233 {
 234     const char *xmlText =
 235         "<?xml version=\"1.0\" encoding=\"windows-1252\"?>\n"
 236         "<name>\n"
 237         "  <![CDATA[Giovanni Mittone]]>\n"
 238         "</name>\n"
 239     ;
 240
 241     wxStringInputStream sis(xmlText);
 242     wxXmlDocument doc;
 243     CPPUNIT_ASSERT( doc.Load(sis) );
 244
 245     wxXmlNode *n = doc.GetRoot();
 246     CPPUNIT_ASSERT( n );
 247
 248     n = n->GetChildren();
 249     CPPUNIT_ASSERT( n );
 250
 251     // check that both leading ("  ") and trailing white space is not part of
 252     // the node contents when CDATA is used and wxXMLDOC_KEEP_WHITESPACE_NODES
 253     // is not
 254     CPPUNIT_ASSERT_EQUAL( "Giovanni Mittone", n->GetContent() );
 255 }
 256
 257 void XmlTestCase::PI()
 258 {
 259     const char *xmlText =
 260         "<?xml version=\"1.0\" encoding=\"windows-1252\"?>\n"
 261         "<root>\n"
 262         "  <?robot index=\"no\" follow=\"no\"?>\n"
 263         "</root>\n"
 264     ;
 265
 266     wxStringInputStream sis(xmlText);
 267     wxXmlDocument doc;
 268     CPPUNIT_ASSERT( doc.Load(sis) );
 269
 270     wxXmlNode *n = doc.GetRoot();
 271     CPPUNIT_ASSERT( n );
 272
 273     n = n->GetChildren();
 274     CPPUNIT_ASSERT( n );
 275
 276     CPPUNIT_ASSERT_EQUAL( "index=\"no\" follow=\"no\"", n->GetContent() );
 277 }
 278
 279 void XmlTestCase::Escaping()
 280 {
 281     // Verify that attribute values are escaped correctly, see
 282     // http://trac.wxwidgets.org/ticket/12275
 283
 284     const char *xmlText =
 285 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
 286 "<root text=\"hello&#xD;&#xA;this is a new line\">\n"
 287 "  <x/>\n"
 288 "</root>\n"
 289     ;
 290
 291     wxStringInputStream sis(xmlText);
 292
 293     wxXmlDocument doc;
 294     CPPUNIT_ASSERT( doc.Load(sis) );
 295
 296     wxStringOutputStream sos;
 297     CPPUNIT_ASSERT( doc.Save(sos) );
 298
 299     CPPUNIT_ASSERT_EQUAL( xmlText, sos.GetString() );
 300 }
 301
 302 void XmlTestCase::DetachRoot()
 303 {
 304     const char *xmlTextProlog =
 305 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
 306 "<!-- Prolog comment -->\n"
 307 "<?xml-stylesheet href=\"style.css\" type=\"text/css\"?>\n"
 308 "<resource xmlns=\"http://www.wxwidgets.org/wxxrc\" version=\"2.3.0.1\">\n"
 309 "  <!-- Test comment -->\n"
 310 "  <object class=\"wxDialog\" name=\"my_dialog\">\n"
 311 "    <children>\n"
 312 "      <grandchild id=\"1\"/>\n"
 313 "    </children>\n"
 314 "    <subobject/>\n"
 315 "  </object>\n"
 316 "</resource>\n"
 317 "<!-- Trailing comment -->\n"
 318     ;
 319     const char *xmlTextHtm =
 320 "<?xml version=\"1.0\" encoding=\"windows-1252\"?>\n"
 321 "<html>\n"
 322 "  <head>\n"
 323 "    <title>Testing wxXml</title>\n"
 324 "  </head>\n"
 325 "  <body>\n"
 326 "    <p>Some body text</p>\n"
 327 "  </body>\n"
 328 "</html>\n"
 329     ;
 330     wxXmlDocument doc;
 331
 332     wxStringInputStream sish(xmlTextHtm);
 333     CPPUNIT_ASSERT( doc.Load(sish) );
 334
 335     wxXmlNode *root = doc.DetachRoot();
 336
 337     wxStringInputStream sisp(xmlTextProlog);
 338     CPPUNIT_ASSERT( doc.Load(sisp) );
 339
 340     doc.SetRoot(root);
 341
 342     wxStringOutputStream sos;
 343     CPPUNIT_ASSERT( doc.Save(sos) );
 344
 345     const char *xmlTextResult1 =
 346 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
 347 "<!-- Prolog comment -->\n"
 348 "<?xml-stylesheet href=\"style.css\" type=\"text/css\"?>\n"
 349 "<html>\n"
 350 "  <head>\n"
 351 "    <title>Testing wxXml</title>\n"
 352 "  </head>\n"
 353 "  <body>\n"
 354 "    <p>Some body text</p>\n"
 355 "  </body>\n"
 356 "</html>\n"
 357 "<!-- Trailing comment -->\n"
 358     ;
 359     CPPUNIT_ASSERT_EQUAL( xmlTextResult1, sos.GetString() );
 360
 361     wxStringInputStream sisp2(xmlTextProlog);
 362     CPPUNIT_ASSERT( doc.Load(sisp2) );
 363
 364     root = doc.DetachRoot();
 365
 366     wxStringInputStream sish2(xmlTextHtm);
 367     CPPUNIT_ASSERT( doc.Load(sish2) );
 368
 369     doc.SetRoot(root);
 370
 371     wxStringOutputStream sos2;
 372     CPPUNIT_ASSERT( doc.Save(sos2) );
 373
 374     const char *xmlTextResult2 =
 375 "<?xml version=\"1.0\" encoding=\"windows-1252\"?>\n"
 376 "<resource xmlns=\"http://www.wxwidgets.org/wxxrc\" version=\"2.3.0.1\">\n"
 377 "  <!-- Test comment -->\n"
 378 "  <object class=\"wxDialog\" name=\"my_dialog\">\n"
 379 "    <children>\n"
 380 "      <grandchild id=\"1\"/>\n"
 381 "    </children>\n"
 382 "    <subobject/>\n"
 383 "  </object>\n"
 384 "</resource>\n"
 385     ;
 386     CPPUNIT_ASSERT_EQUAL( xmlTextResult2, sos2.GetString() );
 387 }
 388
 389 void XmlTestCase::AppendToProlog()
 390 {
 391     const char *xmlText =
 392 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
 393 "<root>\n"
 394 "  <p>Some text</p>\n"
 395 "</root>\n"
 396     ;
 397     wxXmlDocument rootdoc;
 398     wxStringInputStream sis(xmlText);
 399     CPPUNIT_ASSERT( rootdoc.Load(sis) );
 400     wxXmlNode *root = rootdoc.DetachRoot();
 401
 402     wxXmlNode *comment1 = new wxXmlNode(wxXML_COMMENT_NODE, "comment",
 403         " 1st prolog entry ");
 404     wxXmlNode *pi = new wxXmlNode(wxXML_PI_NODE, "xml-stylesheet",
 405         "href=\"style.css\" type=\"text/css\"");
 406     wxXmlNode *comment2 = new wxXmlNode(wxXML_COMMENT_NODE, "comment",
 407         " 3rd prolog entry ");
 408
 409     wxXmlDocument doc;
 410     doc.AppendToProlog( comment1 );
 411     doc.AppendToProlog( pi );
 412     doc.SetRoot( root );
 413     doc.AppendToProlog( comment2 );
 414
 415     wxStringOutputStream sos;
 416     CPPUNIT_ASSERT( doc.Save(sos) );
 417
 418     const char *xmlTextResult =
 419 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
 420 "<!-- 1st prolog entry -->\n"
 421 "<?xml-stylesheet href=\"style.css\" type=\"text/css\"?>\n"
 422 "<!-- 3rd prolog entry -->\n"
 423 "<root>\n"
 424 "  <p>Some text</p>\n"
 425 "</root>\n"
 426     ;
 427     CPPUNIT_ASSERT_EQUAL( xmlTextResult, sos.GetString() );
 428 }
 429
 430 void XmlTestCase::SetRoot()
 431 {
 432     wxXmlDocument doc;
 433     CPPUNIT_ASSERT( !doc.IsOk() );
 434     wxXmlNode *root = new wxXmlNode(wxXML_ELEMENT_NODE, "root");
 435
 436     // Test for the problem of http://trac.wxwidgets.org/ticket/13135
 437     doc.SetRoot( root );
 438     wxXmlNode *docNode = doc.GetDocumentNode();
 439     CPPUNIT_ASSERT( docNode && root == docNode->GetChildren() );
 440     CPPUNIT_ASSERT( doc.IsOk() );
 441
 442     // Other tests.
 443     CPPUNIT_ASSERT( docNode == root->GetParent() );
 444     doc.SetRoot(NULL); // Removes from doc but dosn't free mem, doc node left.
 445     CPPUNIT_ASSERT( !doc.IsOk() );
 446
 447     wxXmlNode *comment = new wxXmlNode(wxXML_COMMENT_NODE, "comment", "Prolog Comment");
 448     wxXmlNode *pi = new wxXmlNode(wxXML_PI_NODE, "target", "PI instructions");
 449     doc.AppendToProlog(comment);
 450     doc.SetRoot( root );
 451     doc.AppendToProlog(pi);
 452     CPPUNIT_ASSERT( doc.IsOk() );
 453     wxXmlNode *node = docNode->GetChildren();
 454     CPPUNIT_ASSERT( node );
 455     CPPUNIT_ASSERT( node->GetType() == wxXML_COMMENT_NODE );
 456     CPPUNIT_ASSERT( node->GetParent() == docNode );
 457     node = node->GetNext();
 458     CPPUNIT_ASSERT( node );
 459     CPPUNIT_ASSERT( node->GetType() == wxXML_PI_NODE );
 460     CPPUNIT_ASSERT( node->GetParent() == docNode );
 461     node = node->GetNext();
 462     CPPUNIT_ASSERT( node );
 463     CPPUNIT_ASSERT( node->GetType() == wxXML_ELEMENT_NODE );
 464     CPPUNIT_ASSERT( node->GetParent() == docNode );
 465     node = node->GetNext();
 466     CPPUNIT_ASSERT( !node );
 467     doc.SetRoot(NULL);
 468     CPPUNIT_ASSERT( !doc.IsOk() );
 469     doc.SetRoot(root);
 470     CPPUNIT_ASSERT( doc.IsOk() );
 471 }