tests/strings/strings.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/strings/strings.cpp
   3 // Purpose:     wxString unit test
   4 // Author:      Vadim Zeitlin, Wlodzimierz ABX Skiba
   5 // Created:     2004-04-19
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2004 Vadim Zeitlin, Wlodzimierz Skiba
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 // ----------------------------------------------------------------------------
  11 // headers
  12 // ----------------------------------------------------------------------------
  13
  14 #include "wx/wxprec.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/tokenzr.h"
  25
  26 #include "wx/cppunit.h"
  27
  28 // ----------------------------------------------------------------------------
  29 // test class
  30 // ----------------------------------------------------------------------------
  31
  32 class StringTestCase : public CppUnit::TestCase
  33 {
  34 public:
  35     StringTestCase();
  36
  37 private:
  38     CPPUNIT_TEST_SUITE( StringTestCase );
  39         CPPUNIT_TEST( String );
  40         CPPUNIT_TEST( PChar );
  41         CPPUNIT_TEST( Format );
  42         CPPUNIT_TEST( Constructors );
  43 #if wxUSE_WCHAR_T
  44         CPPUNIT_TEST( ConstructorsWithConversion );
  45 #endif
  46         CPPUNIT_TEST( Extraction );
  47         CPPUNIT_TEST( Find );
  48         CPPUNIT_TEST( Tokenizer );
  49         CPPUNIT_TEST( Replace );
  50         CPPUNIT_TEST( Match );
  51         CPPUNIT_TEST( CaseChanges );
  52     CPPUNIT_TEST_SUITE_END();
  53
  54     void String();
  55     void PChar();
  56     void Format();
  57     void Constructors();
  58 #if wxUSE_WCHAR_T
  59     void ConstructorsWithConversion();
  60 #endif
  61     void Extraction();
  62     void Find();
  63     void SingleTokenizerTest( wxChar *str, wxChar *delims, size_t count , wxStringTokenizerMode mode );
  64     void Tokenizer();
  65     void Replace();
  66     void Match();
  67     void CaseChanges();
  68
  69     DECLARE_NO_COPY_CLASS(StringTestCase)
  70 };
  71
  72 // register in the unnamed registry so that these tests are run by default
  73 CPPUNIT_TEST_SUITE_REGISTRATION( StringTestCase );
  74
  75 // also include in it's own registry so that these tests can be run alone
  76 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( StringTestCase, "StringTestCase" );
  77
  78 StringTestCase::StringTestCase()
  79 {
  80 }
  81
  82 void StringTestCase::String()
  83 {
  84     wxString a, b, c;
  85
  86     a.reserve (128);
  87     b.reserve (128);
  88     c.reserve (128);
  89
  90     for (int i = 0; i < 2; ++i)
  91     {
  92         a = _T("Hello");
  93         b = _T(" world");
  94         c = _T("! How'ya doin'?");
  95         a += b;
  96         a += c;
  97         c = _T("Hello world! What's up?");
  98         CPPUNIT_ASSERT( c != a );
  99     }
 100 }
 101
 102 void StringTestCase::PChar()
 103 {
 104     wxChar a [128];
 105     wxChar b [128];
 106     wxChar c [128];
 107
 108     for (int i = 0; i < 2; ++i)
 109     {
 110         wxStrcpy (a, _T("Hello"));
 111         wxStrcpy (b, _T(" world"));
 112         wxStrcpy (c, _T("! How'ya doin'?"));
 113         wxStrcat (a, b);
 114         wxStrcat (a, c);
 115         wxStrcpy (c, _T("Hello world! What's up?"));
 116         CPPUNIT_ASSERT( wxStrcmp (c, a) != 0 );
 117     }
 118 }
 119
 120 void StringTestCase::Format()
 121 {
 122     wxString s1,s2;
 123     s1.Printf(_T("%03d"), 18);
 124     CPPUNIT_ASSERT( s1 == wxString::Format(_T("%03d"), 18) );
 125     s2.Printf(_T("Number 18: %s\n"), s1.c_str());
 126     CPPUNIT_ASSERT( s2 == wxString::Format(_T("Number 18: %s\n"), s1.c_str()) );
 127 }
 128
 129 void StringTestCase::Constructors()
 130 {
 131     #define TEST_CTOR(args, res)                                               \
 132         {                                                                      \
 133             wxString s args ;                                                  \
 134             CPPUNIT_ASSERT( s == res );                                        \
 135         }
 136
 137     TEST_CTOR((_T('Z'), 4), _T("ZZZZ"));
 138     TEST_CTOR((_T("Hello"), 4), _T("Hell"));
 139     TEST_CTOR((_T("Hello"), 5), _T("Hello"));
 140
 141     static const wxChar *s = _T("?really!");
 142     const wxChar *start = wxStrchr(s, _T('r'));
 143     const wxChar *end = wxStrchr(s, _T('!'));
 144     TEST_CTOR((start, end), _T("really"));
 145 }
 146
 147 #if wxUSE_WCHAR_T
 148 void StringTestCase::ConstructorsWithConversion()
 149 {
 150     // Déj`a in UTF-8 and wchar_t:
 151     const char utf8[] = {0x44,0xC3,0xA9,0x6A,0xC3,0xA0,0};
 152     const wchar_t wchar[] = {0x44,0xE9,0x6A,0xE0,0};
 153     const char utf8sub[] = {0x44,0xC3,0xA9,0x6A,0}; // "Dej"
 154
 155     wxString s1(utf8, wxConvUTF8);
 156     wxString s2(wchar, wxConvUTF8);
 157
 158 #if wxUSE_UNICODE
 159     CPPUNIT_ASSERT( s1 == wchar );
 160     CPPUNIT_ASSERT( s2 == wchar );
 161 #else
 162     CPPUNIT_ASSERT( s1 == utf8 );
 163     CPPUNIT_ASSERT( s2 == utf8 );
 164 #endif
 165
 166     wxString sub(utf8sub, wxConvUTF8); // "Dej" substring
 167     wxString s3(utf8, wxConvUTF8, 4);
 168     wxString s4(wchar, wxConvUTF8, 3);
 169
 170     CPPUNIT_ASSERT( s3 == sub );
 171     CPPUNIT_ASSERT( s4 == sub );
 172 }
 173 #endif
 174
 175 void StringTestCase::Extraction()
 176 {
 177     wxString s(_T("Hello, world!"));
 178
 179     CPPUNIT_ASSERT( wxStrcmp( s.c_str() , _T("Hello, world!") ) == 0 );
 180     CPPUNIT_ASSERT( wxStrcmp( s.Left(5).c_str() , _T("Hello") ) == 0 );
 181     CPPUNIT_ASSERT( wxStrcmp( s.Right(6).c_str() , _T("world!") ) == 0 );
 182     CPPUNIT_ASSERT( wxStrcmp( s(3, 5).c_str() , _T("lo, w") ) == 0 );
 183     CPPUNIT_ASSERT( wxStrcmp( s.Mid(3).c_str() , _T("lo, world!") ) == 0 );
 184     CPPUNIT_ASSERT( wxStrcmp( s.substr(3, 5).c_str() , _T("lo, w") ) == 0 );
 185     CPPUNIT_ASSERT( wxStrcmp( s.substr(3).c_str() , _T("lo, world!") ) == 0 );
 186
 187     wxString rest;
 188
 189     #define TEST_STARTS_WITH( prefix , correct_rest, result ) \
 190         CPPUNIT_ASSERT( \
 191             ( s.StartsWith( prefix, &rest ) == result ) && \
 192             ( ( result == false ) || ( wxStrcmp( correct_rest , rest ) == 0 ) ) \
 193         )
 194
 195     TEST_STARTS_WITH( _T("Hello"),           _T(", world!"),      true  );
 196     TEST_STARTS_WITH( _T("Hello, "),         _T("world!"),        true  );
 197     TEST_STARTS_WITH( _T("Hello, world!"),   _T(""),              true  );
 198     TEST_STARTS_WITH( _T("Hello, world!!!"), _T(""),              false );
 199     TEST_STARTS_WITH( _T(""),                _T("Hello, world!"), true  );
 200     TEST_STARTS_WITH( _T("Goodbye"),         _T(""),              false );
 201     TEST_STARTS_WITH( _T("Hi"),              _T(""),              false );
 202
 203     #undef TEST_STARTS_WITH
 204 }
 205
 206 void StringTestCase::Find()
 207 {
 208     #define TEST_FIND( str , start , result )  \
 209         CPPUNIT_ASSERT( wxString(str).find(_T("ell"), start) == result );
 210
 211     TEST_FIND( _T("Well, hello world"),  0, 1              );
 212     TEST_FIND( _T("Well, hello world"),  6, 7              );
 213     TEST_FIND( _T("Well, hello world"),  9, wxString::npos );
 214
 215     #undef TEST_FIND
 216 }
 217
 218 void StringTestCase::SingleTokenizerTest( wxChar *str, wxChar *delims, size_t count , wxStringTokenizerMode mode )
 219 {
 220     wxStringTokenizer tkz( str, delims, mode);
 221     CPPUNIT_ASSERT( tkz.CountTokens() == count );
 222
 223     wxChar *buf, *s = NULL, *last;
 224
 225     if ( tkz.GetMode() == wxTOKEN_STRTOK )
 226     {
 227         buf = new wxChar[wxStrlen(str) + 1];
 228         wxStrcpy(buf, str);
 229         s = wxStrtok(buf, delims, &last);
 230     }
 231     else
 232     {
 233         buf = NULL;
 234     }
 235
 236     size_t count2 = 0;
 237     while ( tkz.HasMoreTokens() )
 238     {
 239         wxString token = tkz.GetNextToken();
 240         if ( buf )
 241         {
 242             CPPUNIT_ASSERT( token == s );
 243             s = wxStrtok(NULL, delims, &last);
 244         }
 245         count2++;
 246     }
 247
 248     CPPUNIT_ASSERT( count2 == count );
 249     if ( buf )
 250     {
 251         delete [] buf;
 252     }
 253 }
 254
 255 void StringTestCase::Tokenizer()
 256 {
 257     SingleTokenizerTest( _T(""),                                           _T(" "),              0, wxTOKEN_DEFAULT       );
 258     SingleTokenizerTest( _T("Hello, world"),                               _T(" "),              2, wxTOKEN_DEFAULT       );
 259     SingleTokenizerTest( _T("Hello,   world  "),                           _T(" "),              2, wxTOKEN_DEFAULT       );
 260     SingleTokenizerTest( _T("Hello, world"),                               _T(","),              2, wxTOKEN_DEFAULT       );
 261     SingleTokenizerTest( _T("Hello, world!"),                              _T(",!"),             2, wxTOKEN_DEFAULT       );
 262     SingleTokenizerTest( _T("Hello,, world!"),                             _T(",!"),             3, wxTOKEN_DEFAULT       );
 263     SingleTokenizerTest( _T("Hello, world!"),                              _T(",!"),             3, wxTOKEN_RET_EMPTY_ALL );
 264     SingleTokenizerTest( _T("username:password:uid:gid:gecos:home:shell"), _T(":"),              7, wxTOKEN_DEFAULT       );
 265     SingleTokenizerTest( _T("1 \t3\t4  6   "),                             wxDEFAULT_DELIMITERS, 4, wxTOKEN_DEFAULT       );
 266     SingleTokenizerTest( _T("1 \t3\t4  6   "),                             wxDEFAULT_DELIMITERS, 6, wxTOKEN_RET_EMPTY     );
 267     SingleTokenizerTest( _T("1 \t3\t4  6   "),                             wxDEFAULT_DELIMITERS, 9, wxTOKEN_RET_EMPTY_ALL );
 268     SingleTokenizerTest( _T("01/02/99"),                                   _T("/-"),             3, wxTOKEN_DEFAULT       );
 269     SingleTokenizerTest( _T("01-02/99"),                                   _T("/-"),             3, wxTOKEN_RET_DELIMS    );
 270 }
 271
 272 void StringTestCase::Replace()
 273 {
 274     #define TEST_REPLACE( original , pos , len , replacement , result ) \
 275         { \
 276             wxString s = original; \
 277             s.replace( pos , len , replacement ); \
 278             CPPUNIT_ASSERT( s == result ); \
 279         }
 280
 281     TEST_REPLACE( _T("012-AWORD-XYZ"), 4, 5, _T("BWORD"),  _T("012-BWORD-XYZ") );
 282     TEST_REPLACE( _T("increase"),      0, 2, _T("de"),     _T("decrease")      );
 283     TEST_REPLACE( _T("wxWindow"),      8, 0, _T("s"),      _T("wxWindows")     );
 284     TEST_REPLACE( _T("foobar"),        3, 0, _T("-"),      _T("foo-bar")       );
 285     TEST_REPLACE( _T("barfoo"),        0, 6, _T("foobar"), _T("foobar")        );
 286
 287     #undef TEST_REPLACE
 288 }
 289
 290 void StringTestCase::Match()
 291 {
 292     #define TEST_MATCH( s1 , s2 , result ) \
 293         CPPUNIT_ASSERT( wxString(s1).Matches(s2) == result )
 294
 295     TEST_MATCH( _T("foobar"),    _T("foo*"),   true  );
 296     TEST_MATCH( _T("foobar"),    _T("*oo*"),   true  );
 297     TEST_MATCH( _T("foobar"),    _T("*bar"),   true  );
 298     TEST_MATCH( _T("foobar"),    _T("??????"), true  );
 299     TEST_MATCH( _T("foobar"),    _T("f??b*"),  true  );
 300     TEST_MATCH( _T("foobar"),    _T("f?b*"),   false );
 301     TEST_MATCH( _T("foobar"),    _T("*goo*"),  false );
 302     TEST_MATCH( _T("foobar"),    _T("*foo"),   false );
 303     TEST_MATCH( _T("foobarfoo"), _T("*foo"),   true  );
 304     TEST_MATCH( _T(""),          _T("*"),      true  );
 305     TEST_MATCH( _T(""),          _T("?"),      false );
 306
 307     #undef TEST_MATCH
 308 }
 309
 310
 311 void StringTestCase::CaseChanges()
 312 {
 313     wxString s1(_T("Hello!"));
 314     wxString s1u(s1);
 315     wxString s1l(s1);
 316     s1u.MakeUpper();
 317     s1l.MakeLower();
 318     wxString s2u, s2l;
 319     s2u.MakeUpper();
 320     s2l.MakeLower();
 321
 322     CPPUNIT_ASSERT( s1u == _T("HELLO!") );
 323     CPPUNIT_ASSERT( s1l == _T("hello!") );
 324     CPPUNIT_ASSERT( s2u == wxEmptyString );
 325     CPPUNIT_ASSERT( s2l == wxEmptyString );
 326
 327 #if !wxUSE_UNICODE
 328     wxLocale locRu(wxLANGUAGE_RUSSIAN, 0 /* flags */);
 329     if ( locRu.IsOk() )
 330     {
 331         // try upper casing 8bit strings
 332         wxString sUpper("\xdf"),
 333                  sLower("\xff");
 334
 335         CPPUNIT_ASSERT( sUpper.Lower() == sLower );
 336         CPPUNIT_ASSERT( sLower.Upper() == sUpper );
 337     }
 338 #endif // !wxUSE_UNICODE
 339 }