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