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 wxScopedPtr<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.get() );
  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( Escaping );
  81     CPPUNIT_TEST_SUITE_END();
  82
  83     void InsertChild();
  84     void InsertChildAfter();
  85     void LoadSave();
  86     void CDATA();
  87     void Escaping();
  88
  89     DECLARE_NO_COPY_CLASS(XmlTestCase)
  90 };
  91
  92 // register in the unnamed registry so that these tests are run by default
  93 CPPUNIT_TEST_SUITE_REGISTRATION( XmlTestCase );
  94
  95 // also include in it's own registry so that these tests can be run alone
  96 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( XmlTestCase, "XmlTestCase" );
  97
  98 void XmlTestCase::InsertChild()
  99 {
 100     wxScopedPtr<wxXmlNode> root(new wxXmlNode(wxXML_ELEMENT_NODE, "root"));
 101     root->AddChild(new wxXmlNode(wxXML_ELEMENT_NODE, "1"));
 102     wxXmlNode *two = new wxXmlNode(wxXML_ELEMENT_NODE, "2");
 103     root->AddChild(two);
 104     root->AddChild(new wxXmlNode(wxXML_ELEMENT_NODE, "3"));
 105     CheckXml(root, "1", "2", "3", NULL);
 106
 107     // check inserting in front:
 108     root->InsertChild(new wxXmlNode(wxXML_ELEMENT_NODE, "A"), NULL);
 109     CheckXml(root, "A", "1", "2", "3", NULL);
 110     root->InsertChild(new wxXmlNode(wxXML_ELEMENT_NODE, "B"), root->GetChildren());
 111     CheckXml(root, "B", "A", "1", "2", "3", NULL);
 112
 113     // and in the middle:
 114     root->InsertChild(new wxXmlNode(wxXML_ELEMENT_NODE, "C"), two);
 115     CheckXml(root, "B", "A", "1", "C", "2", "3", NULL);
 116 }
 117
 118 void XmlTestCase::InsertChildAfter()
 119 {
 120     wxScopedPtr<wxXmlNode> root(new wxXmlNode(wxXML_ELEMENT_NODE, "root"));
 121
 122     root->InsertChildAfter(new wxXmlNode(wxXML_ELEMENT_NODE, "1"), NULL);
 123     CheckXml(root, "1", NULL);
 124
 125     wxXmlNode *two = new wxXmlNode(wxXML_ELEMENT_NODE, "2");
 126     root->AddChild(two);
 127     wxXmlNode *three = new wxXmlNode(wxXML_ELEMENT_NODE, "3");
 128     root->AddChild(three);
 129     CheckXml(root, "1", "2", "3", NULL);
 130
 131     // check inserting in the middle:
 132     root->InsertChildAfter(new wxXmlNode(wxXML_ELEMENT_NODE, "A"), root->GetChildren());
 133     CheckXml(root, "1", "A", "2", "3", NULL);
 134     root->InsertChildAfter(new wxXmlNode(wxXML_ELEMENT_NODE, "B"), two);
 135     CheckXml(root, "1", "A", "2", "B", "3", NULL);
 136
 137     // and at the end:
 138     root->InsertChildAfter(new wxXmlNode(wxXML_ELEMENT_NODE, "C"), three);
 139     CheckXml(root, "1", "A", "2", "B", "3", "C", NULL);
 140 }
 141
 142 void XmlTestCase::LoadSave()
 143 {
 144     // NB: this is not real XRC but rather some XRC-like XML fragment which
 145     //     exercises different XML constructs to check that they're saved back
 146     //     correctly
 147     //
 148     // Also note that there should be no blank lines here as they disappear
 149     // after saving.
 150     const char *xmlText =
 151 "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n"
 152 "<resource xmlns=\"http://www.wxwidgets.org/wxxrc\" version=\"2.3.0.1\">\n"
 153 "  <object class=\"wxDialog\" name=\"my_dialog\">\n"
 154 "    <children>\n"
 155 "      <grandchild id=\"1\"/>\n"
 156 "    </children>\n"
 157 "    <subobject/>\n"
 158 "  </object>\n"
 159 "</resource>\n"
 160     ;
 161
 162     wxStringInputStream sis(xmlText);
 163
 164     wxXmlDocument doc;
 165     CPPUNIT_ASSERT( doc.Load(sis) );
 166
 167     wxStringOutputStream sos;
 168     CPPUNIT_ASSERT( doc.Save(sos) );
 169
 170     CPPUNIT_ASSERT_EQUAL( xmlText, sos.GetString() );
 171
 172
 173 #if wxUSE_UNICODE
 174     const char *utf8xmlText =
 175 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
 176 "<word>\n"
 177 "  <lang name=\"fr\">\xc3\xa9t\xc3\xa9</lang>\n"
 178 "  <lang name=\"ru\">\xd0\xbb\xd0\xb5\xd1\x82\xd0\xbe</lang>\n"
 179 "</word>\n"
 180     ;
 181
 182     wxStringInputStream sis8(wxString::FromUTF8(utf8xmlText));
 183     CPPUNIT_ASSERT( doc.Load(sis8) );
 184
 185     // this contents can't be represented in Latin-1 as it contains Cyrillic
 186     // letters
 187     doc.SetFileEncoding("ISO-8859-1");
 188     CPPUNIT_ASSERT( !doc.Save(sos) );
 189
 190     // but it should work in UTF-8
 191     wxStringOutputStream sos8;
 192     doc.SetFileEncoding("UTF-8");
 193     CPPUNIT_ASSERT( doc.Save(sos8) );
 194     CPPUNIT_ASSERT_EQUAL( wxString(utf8xmlText),
 195                           wxString(sos8.GetString().ToUTF8()) );
 196 #endif // wxUSE_UNICODE
 197 }
 198
 199 void XmlTestCase::CDATA()
 200 {
 201     const char *xmlText =
 202         "<?xml version=\"1.0\" encoding=\"windows-1252\"?>\n"
 203         "<name>\n"
 204         "  <![CDATA[Giovanni Mittone]]>\n"
 205         "</name>\n"
 206     ;
 207
 208     wxStringInputStream sis(xmlText);
 209     wxXmlDocument doc;
 210     CPPUNIT_ASSERT( doc.Load(sis) );
 211
 212     wxXmlNode *n = doc.GetRoot();
 213     CPPUNIT_ASSERT( n );
 214
 215     n = n->GetChildren();
 216     CPPUNIT_ASSERT( n );
 217
 218     // check that both leading ("  ") and trailing white space is not part of
 219     // the node contents when CDATA is used and wxXMLDOC_KEEP_WHITESPACE_NODES
 220     // is not
 221     CPPUNIT_ASSERT_EQUAL( "Giovanni Mittone", n->GetContent() );
 222 }
 223
 224 void XmlTestCase::Escaping()
 225 {
 226     // Verify that attribute values are escaped correctly, see
 227     // http://trac.wxwidgets.org/ticket/12275
 228
 229     const char *xmlText =
 230 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
 231 "<root text=\"hello&#xD;&#xA;this is a new line\">\n"
 232 "  <x/>\n"
 233 "</root>\n"
 234     ;
 235
 236     wxStringInputStream sis(xmlText);
 237
 238     wxXmlDocument doc;
 239     CPPUNIT_ASSERT( doc.Load(sis) );
 240
 241     wxStringOutputStream sos;
 242     CPPUNIT_ASSERT( doc.Save(sos) );
 243
 244     CPPUNIT_ASSERT_EQUAL( xmlText, sos.GetString() );
 245 }