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/sstream.h"
  26
  27 #include <stdarg.h>
  28
  29 // ----------------------------------------------------------------------------
  30 // helpers for testing XML tree
  31 // ----------------------------------------------------------------------------
  32
  33 namespace
  34 {
  35
  36 void CheckXml(wxXmlNode *n, ...)
  37 {
  38     va_list args;
  39     va_start(args, n);
  40
  41     wxXmlNode *child = n->GetChildren();
  42
  43     for (;;)
  44     {
  45         const char *childName = va_arg(args, char*);
  46         if ( childName == NULL )
  47             break;
  48
  49         CPPUNIT_ASSERT( child );
  50         CPPUNIT_ASSERT_EQUAL( childName, child->GetName() );
  51         CPPUNIT_ASSERT( child->GetChildren() == NULL );
  52         CPPUNIT_ASSERT( child->GetParent() == n );
  53
  54         child = child->GetNext();
  55     }
  56
  57     va_end(args);
  58
  59     CPPUNIT_ASSERT( child == NULL ); // no more children
  60 }
  61
  62 } // anon namespace
  63
  64 // ----------------------------------------------------------------------------
  65 // test class
  66 // ----------------------------------------------------------------------------
  67
  68 class XmlTestCase : public CppUnit::TestCase
  69 {
  70 public:
  71     XmlTestCase() {}
  72
  73 private:
  74     CPPUNIT_TEST_SUITE( XmlTestCase );
  75         CPPUNIT_TEST( InsertChild );
  76         CPPUNIT_TEST( InsertChildAfter );
  77         CPPUNIT_TEST( LoadSave );
  78         CPPUNIT_TEST( CDATA );
  79         CPPUNIT_TEST( Escaping );
  80     CPPUNIT_TEST_SUITE_END();
  81
  82     void InsertChild();
  83     void InsertChildAfter();
  84     void LoadSave();
  85     void CDATA();
  86     void Escaping();
  87
  88     DECLARE_NO_COPY_CLASS(XmlTestCase)
  89 };
  90
  91 // register in the unnamed registry so that these tests are run by default
  92 CPPUNIT_TEST_SUITE_REGISTRATION( XmlTestCase );
  93
  94 // also include in it's own registry so that these tests can be run alone
  95 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( XmlTestCase, "XmlTestCase" );
  96
  97 void XmlTestCase::InsertChild()
  98 {
  99     wxXmlNode *root = new wxXmlNode(wxXML_ELEMENT_NODE, "root");
 100     root->AddChild(new wxXmlNode(wxXML_ELEMENT_NODE, "1"));
 101     wxXmlNode *two = new wxXmlNode(wxXML_ELEMENT_NODE, "2");
 102     root->AddChild(two);
 103     root->AddChild(new wxXmlNode(wxXML_ELEMENT_NODE, "3"));
 104     CheckXml(root, "1", "2", "3", NULL);
 105
 106     // check inserting in front:
 107     root->InsertChild(new wxXmlNode(wxXML_ELEMENT_NODE, "A"), NULL);
 108     CheckXml(root, "A", "1", "2", "3", NULL);
 109     root->InsertChild(new wxXmlNode(wxXML_ELEMENT_NODE, "B"), root->GetChildren());
 110     CheckXml(root, "B", "A", "1", "2", "3", NULL);
 111
 112     // and in the middle:
 113     root->InsertChild(new wxXmlNode(wxXML_ELEMENT_NODE, "C"), two);
 114     CheckXml(root, "B", "A", "1", "C", "2", "3", NULL);
 115 }
 116
 117 void XmlTestCase::InsertChildAfter()
 118 {
 119     wxXmlNode *root = new wxXmlNode(wxXML_ELEMENT_NODE, "root");
 120
 121     root->InsertChildAfter(new wxXmlNode(wxXML_ELEMENT_NODE, "1"), NULL);
 122     CheckXml(root, "1", NULL);
 123
 124     wxXmlNode *two = new wxXmlNode(wxXML_ELEMENT_NODE, "2");
 125     root->AddChild(two);
 126     wxXmlNode *three = new wxXmlNode(wxXML_ELEMENT_NODE, "3");
 127     root->AddChild(three);
 128     CheckXml(root, "1", "2", "3", NULL);
 129
 130     // check inserting in the middle:
 131     root->InsertChildAfter(new wxXmlNode(wxXML_ELEMENT_NODE, "A"), root->GetChildren());
 132     CheckXml(root, "1", "A", "2", "3", NULL);
 133     root->InsertChildAfter(new wxXmlNode(wxXML_ELEMENT_NODE, "B"), two);
 134     CheckXml(root, "1", "A", "2", "B", "3", NULL);
 135
 136     // and at the end:
 137     root->InsertChildAfter(new wxXmlNode(wxXML_ELEMENT_NODE, "C"), three);
 138     CheckXml(root, "1", "A", "2", "B", "3", "C", NULL);
 139 }
 140
 141 void XmlTestCase::LoadSave()
 142 {
 143     // NB: this is not real XRC but rather some XRC-like XML fragment which
 144     //     exercises different XML constructs to check that they're saved back
 145     //     correctly
 146     //
 147     // Also note that there should be no blank lines here as they disappear
 148     // after saving.
 149     const char *xmlText =
 150 "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n"
 151 "<resource xmlns=\"http://www.wxwidgets.org/wxxrc\" version=\"2.3.0.1\">\n"
 152 "  <object class=\"wxDialog\" name=\"my_dialog\">\n"
 153 "    <children>\n"
 154 "      <grandchild id=\"1\"/>\n"
 155 "    </children>\n"
 156 "    <subobject/>\n"
 157 "  </object>\n"
 158 "</resource>\n"
 159     ;
 160
 161     wxStringInputStream sis(xmlText);
 162
 163     wxXmlDocument doc;
 164     CPPUNIT_ASSERT( doc.Load(sis) );
 165
 166     wxStringOutputStream sos;
 167     CPPUNIT_ASSERT( doc.Save(sos) );
 168
 169     CPPUNIT_ASSERT_EQUAL( xmlText, sos.GetString() );
 170
 171
 172 #if wxUSE_UNICODE
 173     const char *utf8xmlText =
 174 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
 175 "<word>\n"
 176 "  <lang name=\"fr\">\xc3\xa9t\xc3\xa9</lang>\n"
 177 "  <lang name=\"ru\">\xd0\xbb\xd0\xb5\xd1\x82\xd0\xbe</lang>\n"
 178 "</word>\n"
 179     ;
 180
 181     wxStringInputStream sis8(wxString::FromUTF8(utf8xmlText));
 182     CPPUNIT_ASSERT( doc.Load(sis8) );
 183
 184     // this contents can't be represented in Latin-1 as it contains Cyrillic
 185     // letters
 186     doc.SetFileEncoding("ISO-8859-1");
 187     CPPUNIT_ASSERT( !doc.Save(sos) );
 188
 189     // but it should work in UTF-8
 190     wxStringOutputStream sos8;
 191     doc.SetFileEncoding("UTF-8");
 192     CPPUNIT_ASSERT( doc.Save(sos8) );
 193     CPPUNIT_ASSERT_EQUAL( wxString(utf8xmlText),
 194                           wxString(sos8.GetString().ToUTF8()) );
 195 #endif // wxUSE_UNICODE
 196 }
 197
 198 void XmlTestCase::CDATA()
 199 {
 200     const char *xmlText =
 201         "<?xml version=\"1.0\" encoding=\"windows-1252\"?>\n"
 202         "<name>\n"
 203         "  <![CDATA[Giovanni Mittone]]>\n"
 204         "</name>\n"
 205     ;
 206
 207     wxStringInputStream sis(xmlText);
 208     wxXmlDocument doc;
 209     CPPUNIT_ASSERT( doc.Load(sis) );
 210
 211     wxXmlNode *n = doc.GetRoot();
 212     CPPUNIT_ASSERT( n );
 213
 214     n = n->GetChildren();
 215     CPPUNIT_ASSERT( n );
 216
 217     // check that both leading ("  ") and trailing white space is not part of
 218     // the node contents when CDATA is used and wxXMLDOC_KEEP_WHITESPACE_NODES
 219     // is not
 220     CPPUNIT_ASSERT_EQUAL( "Giovanni Mittone", n->GetContent() );
 221 }
 222
 223 void XmlTestCase::Escaping()
 224 {
 225     // Verify that attribute values are escaped correctly, see
 226     // http://trac.wxwidgets.org/ticket/12275
 227
 228     const char *xmlText =
 229 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
 230 "<root text=\"hello&#xD;&#xA;this is a new line\">\n"
 231 "  <x/>\n"
 232 "</root>\n"
 233     ;
 234
 235     wxStringInputStream sis(xmlText);
 236
 237     wxXmlDocument doc;
 238     CPPUNIT_ASSERT( doc.Load(sis) );
 239
 240     wxStringOutputStream sos;
 241     CPPUNIT_ASSERT( doc.Save(sos) );
 242
 243     CPPUNIT_ASSERT_EQUAL( xmlText, sos.GetString() );
 244 }