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         CPPUNIT_TEST( Conversion );
  46 #endif
  47 #if wxUSE_UNICODE
  48         CPPUNIT_TEST( ConversionUTF7 );
  49 #endif
  50         CPPUNIT_TEST( Extraction );
  51         CPPUNIT_TEST( Find );
  52         CPPUNIT_TEST( Tokenizer );
  53         CPPUNIT_TEST( TokenizerGetPosition );
  54         CPPUNIT_TEST( Replace );
  55         CPPUNIT_TEST( Match );
  56         CPPUNIT_TEST( CaseChanges );
  57         CPPUNIT_TEST( Compare );
  58         CPPUNIT_TEST( CompareNoCase );
  59     CPPUNIT_TEST_SUITE_END();
  60
  61     void String();
  62     void PChar();
  63     void Format();
  64     void Constructors();
  65 #if wxUSE_WCHAR_T
  66     void ConstructorsWithConversion();
  67     void Conversion();
  68 #endif
  69 #if wxUSE_UNICODE
  70     void ConversionUTF7();
  71 #endif
  72     void Extraction();
  73     void Find();
  74     void SingleTokenizerTest( wxChar *str, wxChar *delims, size_t count , wxStringTokenizerMode mode );
  75     void Tokenizer();
  76     void TokenizerGetPosition();
  77     void Replace();
  78     void Match();
  79     void CaseChanges();
  80     void Compare();
  81     void CompareNoCase();
  82
  83     DECLARE_NO_COPY_CLASS(StringTestCase)
  84 };
  85
  86 // register in the unnamed registry so that these tests are run by default
  87 CPPUNIT_TEST_SUITE_REGISTRATION( StringTestCase );
  88
  89 // also include in it's own registry so that these tests can be run alone
  90 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( StringTestCase, "StringTestCase" );
  91
  92 StringTestCase::StringTestCase()
  93 {
  94 }
  95
  96 void StringTestCase::String()
  97 {
  98     wxString a, b, c;
  99
 100     a.reserve (128);
 101     b.reserve (128);
 102     c.reserve (128);
 103
 104     for (int i = 0; i < 2; ++i)
 105     {
 106         a = _T("Hello");
 107         b = _T(" world");
 108         c = _T("! How'ya doin'?");
 109         a += b;
 110         a += c;
 111         c = _T("Hello world! What's up?");
 112         CPPUNIT_ASSERT( c != a );
 113     }
 114 }
 115
 116 void StringTestCase::PChar()
 117 {
 118     wxChar a [128];
 119     wxChar b [128];
 120     wxChar c [128];
 121
 122     for (int i = 0; i < 2; ++i)
 123     {
 124         wxStrcpy (a, _T("Hello"));
 125         wxStrcpy (b, _T(" world"));
 126         wxStrcpy (c, _T("! How'ya doin'?"));
 127         wxStrcat (a, b);
 128         wxStrcat (a, c);
 129         wxStrcpy (c, _T("Hello world! What's up?"));
 130         CPPUNIT_ASSERT( wxStrcmp (c, a) != 0 );
 131     }
 132 }
 133
 134 void StringTestCase::Format()
 135 {
 136     wxString s1,s2;
 137     s1.Printf(_T("%03d"), 18);
 138     CPPUNIT_ASSERT( s1 == wxString::Format(_T("%03d"), 18) );
 139     s2.Printf(_T("Number 18: %s\n"), s1.c_str());
 140     CPPUNIT_ASSERT( s2 == wxString::Format(_T("Number 18: %s\n"), s1.c_str()) );
 141 }
 142
 143 void StringTestCase::Constructors()
 144 {
 145     #define TEST_CTOR(args, res)                                               \
 146         {                                                                      \
 147             wxString s args ;                                                  \
 148             CPPUNIT_ASSERT( s == res );                                        \
 149         }
 150
 151     TEST_CTOR((_T('Z'), 4), _T("ZZZZ"));
 152     TEST_CTOR((_T("Hello"), 4), _T("Hell"));
 153     TEST_CTOR((_T("Hello"), 5), _T("Hello"));
 154
 155     static const wxChar *s = _T("?really!");
 156     const wxChar *start = wxStrchr(s, _T('r'));
 157     const wxChar *end = wxStrchr(s, _T('!'));
 158     TEST_CTOR((start, end), _T("really"));
 159 }
 160
 161 #if wxUSE_WCHAR_T
 162 void StringTestCase::ConstructorsWithConversion()
 163 {
 164     // the string "Déjà" in UTF-8 and wchar_t:
 165     const unsigned char utf8Buf[] = {0x44,0xC3,0xA9,0x6A,0xC3,0xA0,0};
 166     const wchar_t wchar[] = {0x44,0xE9,0x6A,0xE0,0};
 167     const unsigned char utf8subBuf[] = {0x44,0xC3,0xA9,0x6A,0}; // just "Déj"
 168     const char *utf8 = (char *)utf8Buf;
 169     const char *utf8sub = (char *)utf8subBuf;
 170
 171     wxString s1(utf8, wxConvUTF8);
 172     wxString s2(wchar, wxConvUTF8);
 173
 174 #if wxUSE_UNICODE
 175     CPPUNIT_ASSERT( s1 == wchar );
 176     CPPUNIT_ASSERT( s2 == wchar );
 177 #else
 178     CPPUNIT_ASSERT( s1 == utf8 );
 179     CPPUNIT_ASSERT( s2 == utf8 );
 180 #endif
 181
 182     wxString sub(utf8sub, wxConvUTF8); // "Dej" substring
 183     wxString s3(utf8, wxConvUTF8, 4);
 184     wxString s4(wchar, wxConvUTF8, 3);
 185
 186     CPPUNIT_ASSERT( s3 == sub );
 187     CPPUNIT_ASSERT( s4 == sub );
 188 }
 189
 190 void StringTestCase::Conversion()
 191 {
 192 #if wxUSE_UNICODE
 193         wxString szTheString(L"The\0String", wxConvLibc, 10);
 194         wxCharBuffer theBuffer = szTheString.mb_str();
 195
 196         CPPUNIT_ASSERT( memcmp(theBuffer.data(), "The\0String", 11) == 0 );
 197
 198         wxString szTheString2("The\0String", wxConvLocal, 10);
 199         CPPUNIT_ASSERT( wxMemcmp(szTheString2.c_str(), L"The\0String", 11) == 0 );
 200 #else
 201         wxString szTheString(wxT("TheString"));
 202         szTheString.insert(3, 1, '\0');
 203         wxWCharBuffer theBuffer = szTheString.wc_str(wxConvLibc);
 204
 205         CPPUNIT_ASSERT( memcmp(theBuffer.data(), L"The\0String", 11 * sizeof(wchar_t)) == 0 );
 206
 207         wxString szLocalTheString(wxT("TheString"));
 208         szLocalTheString.insert(3, 1, '\0');
 209         wxWCharBuffer theLocalBuffer = szLocalTheString.wc_str(wxConvLocal);
 210
 211         CPPUNIT_ASSERT( memcmp(theLocalBuffer.data(), L"The\0String", 11 * sizeof(wchar_t)) == 0 );
 212 #endif
 213 }
 214 #endif // wxUSE_WCHAR_T
 215
 216 #if wxUSE_UNICODE
 217 void StringTestCase::ConversionUTF7()
 218 {
 219     const wxChar wdata[] = { 0x00A3, 0x00A3, 0x00A3, 0x00A3, 0 }; // pound signs
 220     const char *utf7 = "+AKM-+AKM-+AKM-+AKM-";
 221     wxString str(wdata);
 222
 223     wxCSConv conv(_T("utf-7"));
 224     CPPUNIT_ASSERT( strcmp(str.mb_str(conv), utf7) == 0 );
 225 }
 226 #endif // wxUSE_UNICODE
 227
 228 void StringTestCase::Extraction()
 229 {
 230     wxString s(_T("Hello, world!"));
 231
 232     CPPUNIT_ASSERT( wxStrcmp( s.c_str() , _T("Hello, world!") ) == 0 );
 233     CPPUNIT_ASSERT( wxStrcmp( s.Left(5).c_str() , _T("Hello") ) == 0 );
 234     CPPUNIT_ASSERT( wxStrcmp( s.Right(6).c_str() , _T("world!") ) == 0 );
 235     CPPUNIT_ASSERT( wxStrcmp( s(3, 5).c_str() , _T("lo, w") ) == 0 );
 236     CPPUNIT_ASSERT( wxStrcmp( s.Mid(3).c_str() , _T("lo, world!") ) == 0 );
 237     CPPUNIT_ASSERT( wxStrcmp( s.substr(3, 5).c_str() , _T("lo, w") ) == 0 );
 238     CPPUNIT_ASSERT( wxStrcmp( s.substr(3).c_str() , _T("lo, world!") ) == 0 );
 239
 240     wxString rest;
 241
 242     #define TEST_STARTS_WITH( prefix , correct_rest, result ) \
 243         CPPUNIT_ASSERT( \
 244             ( s.StartsWith( prefix, &rest ) == result ) && \
 245             ( ( result == false ) || ( wxStrcmp( correct_rest , rest ) == 0 ) ) \
 246         )
 247
 248     TEST_STARTS_WITH( _T("Hello"),           _T(", world!"),      true  );
 249     TEST_STARTS_WITH( _T("Hello, "),         _T("world!"),        true  );
 250     TEST_STARTS_WITH( _T("Hello, world!"),   _T(""),              true  );
 251     TEST_STARTS_WITH( _T("Hello, world!!!"), _T(""),              false );
 252     TEST_STARTS_WITH( _T(""),                _T("Hello, world!"), true  );
 253     TEST_STARTS_WITH( _T("Goodbye"),         _T(""),              false );
 254     TEST_STARTS_WITH( _T("Hi"),              _T(""),              false );
 255
 256     #undef TEST_STARTS_WITH
 257 }
 258
 259 void StringTestCase::Find()
 260 {
 261     #define TEST_FIND( str , start , result )  \
 262         CPPUNIT_ASSERT( wxString(str).find(_T("ell"), start) == result );
 263
 264     TEST_FIND( _T("Well, hello world"),  0, 1              );
 265     TEST_FIND( _T("Well, hello world"),  6, 7              );
 266     TEST_FIND( _T("Well, hello world"),  9, wxString::npos );
 267
 268     #undef TEST_FIND
 269 }
 270
 271 void StringTestCase::SingleTokenizerTest( wxChar *str, wxChar *delims, size_t count , wxStringTokenizerMode mode )
 272 {
 273     wxStringTokenizer tkz( str, delims, mode);
 274     CPPUNIT_ASSERT( tkz.CountTokens() == count );
 275
 276     wxChar *buf, *s = NULL, *last;
 277
 278     if ( tkz.GetMode() == wxTOKEN_STRTOK )
 279     {
 280         buf = new wxChar[wxStrlen(str) + 1];
 281         wxStrcpy(buf, str);
 282         s = wxStrtok(buf, delims, &last);
 283     }
 284     else
 285     {
 286         buf = NULL;
 287     }
 288
 289     size_t count2 = 0;
 290     while ( tkz.HasMoreTokens() )
 291     {
 292         wxString token = tkz.GetNextToken();
 293         if ( buf )
 294         {
 295             CPPUNIT_ASSERT( token == s );
 296             s = wxStrtok(NULL, delims, &last);
 297         }
 298         count2++;
 299     }
 300
 301     CPPUNIT_ASSERT( count2 == count );
 302     if ( buf )
 303     {
 304         delete [] buf;
 305     }
 306 }
 307
 308 void StringTestCase::Tokenizer()
 309 {
 310     SingleTokenizerTest( _T(""),                                           _T(" "),              0, wxTOKEN_DEFAULT       );
 311     SingleTokenizerTest( _T("Hello, world"),                               _T(" "),              2, wxTOKEN_DEFAULT       );
 312     SingleTokenizerTest( _T("Hello,   world  "),                           _T(" "),              2, wxTOKEN_DEFAULT       );
 313     SingleTokenizerTest( _T("Hello, world"),                               _T(","),              2, wxTOKEN_DEFAULT       );
 314     SingleTokenizerTest( _T("Hello, world!"),                              _T(",!"),             2, wxTOKEN_DEFAULT       );
 315     SingleTokenizerTest( _T("Hello,, world!"),                             _T(",!"),             3, wxTOKEN_DEFAULT       );
 316     SingleTokenizerTest( _T("Hello, world!"),                              _T(",!"),             3, wxTOKEN_RET_EMPTY_ALL );
 317     SingleTokenizerTest( _T("username:password:uid:gid:gecos:home:shell"), _T(":"),              7, wxTOKEN_DEFAULT       );
 318     SingleTokenizerTest( _T("1 \t3\t4  6   "),                             wxDEFAULT_DELIMITERS, 4, wxTOKEN_DEFAULT       );
 319     SingleTokenizerTest( _T("1 \t3\t4  6   "),                             wxDEFAULT_DELIMITERS, 6, wxTOKEN_RET_EMPTY     );
 320     SingleTokenizerTest( _T("1 \t3\t4  6   "),                             wxDEFAULT_DELIMITERS, 9, wxTOKEN_RET_EMPTY_ALL );
 321     SingleTokenizerTest( _T("01/02/99"),                                   _T("/-"),             3, wxTOKEN_DEFAULT       );
 322     SingleTokenizerTest( _T("01-02/99"),                                   _T("/-"),             3, wxTOKEN_RET_DELIMS    );
 323 }
 324
 325 // call this with the string to tokenize, delimeters to use and the expected
 326 // positions (i.e. results of GetPosition()) after each GetNextToken() call,
 327 // terminate positions with 0
 328 static void
 329 DoTokenizerGetPosition(const wxChar *s, const wxChar *delims, int pos, ...)
 330 {
 331     wxStringTokenizer tkz(s, delims);
 332
 333     CPPUNIT_ASSERT( tkz.GetPosition() == 0 );
 334
 335     va_list ap;
 336     va_start(ap, pos);
 337
 338     for ( ;; )
 339     {
 340         if ( !pos )
 341         {
 342             CPPUNIT_ASSERT( !tkz.HasMoreTokens() );
 343             break;
 344         }
 345
 346         tkz.GetNextToken();
 347
 348         CPPUNIT_ASSERT( tkz.GetPosition() == (size_t)pos );
 349
 350         pos = va_arg(ap, int);
 351     }
 352
 353     va_end(ap);
 354 }
 355
 356 void StringTestCase::TokenizerGetPosition()
 357 {
 358     DoTokenizerGetPosition(_T("foo"), _T("_"), 3, 0);
 359     DoTokenizerGetPosition(_T("foo_bar"), _T("_"), 4, 7, 0);
 360     DoTokenizerGetPosition(_T("foo_bar_"), _T("_"), 4, 8, 0);
 361 }
 362
 363 void StringTestCase::Replace()
 364 {
 365     #define TEST_REPLACE( original , pos , len , replacement , result ) \
 366         { \
 367             wxString s = original; \
 368             s.replace( pos , len , replacement ); \
 369             CPPUNIT_ASSERT( s == result ); \
 370         }
 371
 372     TEST_REPLACE( _T("012-AWORD-XYZ"), 4, 5, _T("BWORD"),  _T("012-BWORD-XYZ") );
 373     TEST_REPLACE( _T("increase"),      0, 2, _T("de"),     _T("decrease")      );
 374     TEST_REPLACE( _T("wxWindow"),      8, 0, _T("s"),      _T("wxWindows")     );
 375     TEST_REPLACE( _T("foobar"),        3, 0, _T("-"),      _T("foo-bar")       );
 376     TEST_REPLACE( _T("barfoo"),        0, 6, _T("foobar"), _T("foobar")        );
 377
 378     #undef TEST_REPLACE
 379 }
 380
 381 void StringTestCase::Match()
 382 {
 383     #define TEST_MATCH( s1 , s2 , result ) \
 384         CPPUNIT_ASSERT( wxString(s1).Matches(s2) == result )
 385
 386     TEST_MATCH( _T("foobar"),    _T("foo*"),   true  );
 387     TEST_MATCH( _T("foobar"),    _T("*oo*"),   true  );
 388     TEST_MATCH( _T("foobar"),    _T("*bar"),   true  );
 389     TEST_MATCH( _T("foobar"),    _T("??????"), true  );
 390     TEST_MATCH( _T("foobar"),    _T("f??b*"),  true  );
 391     TEST_MATCH( _T("foobar"),    _T("f?b*"),   false );
 392     TEST_MATCH( _T("foobar"),    _T("*goo*"),  false );
 393     TEST_MATCH( _T("foobar"),    _T("*foo"),   false );
 394     TEST_MATCH( _T("foobarfoo"), _T("*foo"),   true  );
 395     TEST_MATCH( _T(""),          _T("*"),      true  );
 396     TEST_MATCH( _T(""),          _T("?"),      false );
 397
 398     #undef TEST_MATCH
 399 }
 400
 401
 402 void StringTestCase::CaseChanges()
 403 {
 404     wxString s1(_T("Hello!"));
 405     wxString s1u(s1);
 406     wxString s1l(s1);
 407     s1u.MakeUpper();
 408     s1l.MakeLower();
 409     wxString s2u, s2l;
 410     s2u.MakeUpper();
 411     s2l.MakeLower();
 412
 413     CPPUNIT_ASSERT( s1u == _T("HELLO!") );
 414     CPPUNIT_ASSERT( s1l == _T("hello!") );
 415     CPPUNIT_ASSERT( s2u == wxEmptyString );
 416     CPPUNIT_ASSERT( s2l == wxEmptyString );
 417
 418 #if !wxUSE_UNICODE
 419     wxLocale locRu(wxLANGUAGE_RUSSIAN, 0 /* flags */);
 420     if ( locRu.IsOk() )
 421     {
 422         // try upper casing 8bit strings
 423         wxString sUpper("\xdf"),
 424                  sLower("\xff");
 425
 426         CPPUNIT_ASSERT( sUpper.Lower() == sLower );
 427         CPPUNIT_ASSERT( sLower.Upper() == sUpper );
 428     }
 429 #endif // !wxUSE_UNICODE
 430 }
 431
 432 void StringTestCase::Compare()
 433 {
 434     wxString s1 = wxT("AHH");
 435     wxString eq = wxT("AHH");
 436     wxString neq1 = wxT("HAH");
 437     wxString neq2 = wxT("AH");
 438     wxString neq3 = wxT("AHHH");
 439     wxString neq4 = wxT("AhH");
 440
 441     CPPUNIT_ASSERT( s1 == eq );
 442     CPPUNIT_ASSERT( s1 != neq1 );
 443     CPPUNIT_ASSERT( s1 != neq2 );
 444     CPPUNIT_ASSERT( s1 != neq3 );
 445     CPPUNIT_ASSERT( s1 != neq4 );
 446
 447 //    wxString _s1 = wxT("A\0HH");
 448 //    wxString _eq = wxT("A\0HH");
 449 //    wxString _neq1 = wxT("H\0AH");
 450 //    wxString _neq2 = wxT("A\0H");
 451 //    wxString _neq3 = wxT("A\0HHH");
 452 //    wxString _neq4 = wxT("A\0hH");
 453     s1.insert(1,1,'\0');
 454     eq.insert(1,1,'\0');
 455     neq1.insert(1,1,'\0');
 456     neq2.insert(1,1,'\0');
 457     neq3.insert(1,1,'\0');
 458     neq4.insert(1,1,'\0');
 459
 460     CPPUNIT_ASSERT( s1 == eq );
 461     CPPUNIT_ASSERT( s1 != neq1 );
 462     CPPUNIT_ASSERT( s1 != neq2 );
 463     CPPUNIT_ASSERT( s1 != neq3 );
 464     CPPUNIT_ASSERT( s1 != neq4 );
 465 }
 466
 467 void StringTestCase::CompareNoCase()
 468 {
 469     wxString s1 = wxT("AHH");
 470     wxString eq = wxT("AHH");
 471     wxString eq2 = wxT("AhH");
 472     wxString eq3 = wxT("ahh");
 473     wxString neq = wxT("HAH");
 474     wxString neq2 = wxT("AH");
 475     wxString neq3 = wxT("AHHH");
 476
 477     #define CPPUNIT_CNCEQ_ASSERT(s1, s2) CPPUNIT_ASSERT( s1.CmpNoCase(s2) == 0)
 478     #define CPPUNIT_CNCNEQ_ASSERT(s1, s2) CPPUNIT_ASSERT( s1.CmpNoCase(s2) != 0)
 479
 480     CPPUNIT_CNCEQ_ASSERT( s1, eq );
 481     CPPUNIT_CNCEQ_ASSERT( s1, eq2 );
 482     CPPUNIT_CNCEQ_ASSERT( s1, eq3 );
 483
 484     CPPUNIT_CNCNEQ_ASSERT( s1, neq );
 485     CPPUNIT_CNCNEQ_ASSERT( s1, neq2 );
 486     CPPUNIT_CNCNEQ_ASSERT( s1, neq3 );
 487
 488
 489 //    wxString _s1 = wxT("A\0HH");
 490 //    wxString _eq = wxT("A\0HH");
 491 //    wxString _eq2 = wxT("A\0hH");
 492 //    wxString _eq3 = wxT("a\0hh");
 493 //    wxString _neq = wxT("H\0AH");
 494 //    wxString _neq2 = wxT("A\0H");
 495 //    wxString _neq3 = wxT("A\0HHH");
 496
 497     s1.insert(1,1,'\0');
 498     eq.insert(1,1,'\0');
 499     eq2.insert(1,1,'\0');
 500     eq3.insert(1,1,'\0');
 501     neq.insert(1,1,'\0');
 502     neq2.insert(1,1,'\0');
 503     neq3.insert(1,1,'\0');
 504
 505     CPPUNIT_CNCEQ_ASSERT( s1, eq );
 506     CPPUNIT_CNCEQ_ASSERT( s1, eq2 );
 507     CPPUNIT_CNCEQ_ASSERT( s1, eq3 );
 508
 509     CPPUNIT_CNCNEQ_ASSERT( s1, neq );
 510     CPPUNIT_CNCNEQ_ASSERT( s1, neq2 );
 511     CPPUNIT_CNCNEQ_ASSERT( s1, neq3 );
 512 }
 513