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 "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 // ----------------------------------------------------------------------------
  25 // test class
  26 // ----------------------------------------------------------------------------
  27
  28 class StringTestCase : public CppUnit::TestCase
  29 {
  30 public:
  31     StringTestCase();
  32
  33 private:
  34     CPPUNIT_TEST_SUITE( StringTestCase );
  35         CPPUNIT_TEST( String );
  36         CPPUNIT_TEST( PChar );
  37         CPPUNIT_TEST( Format );
  38         CPPUNIT_TEST( Constructors );
  39         CPPUNIT_TEST( StaticConstructors );
  40         CPPUNIT_TEST( Extraction );
  41         CPPUNIT_TEST( Trim );
  42         CPPUNIT_TEST( Find );
  43         CPPUNIT_TEST( Replace );
  44         CPPUNIT_TEST( Match );
  45         CPPUNIT_TEST( CaseChanges );
  46         CPPUNIT_TEST( Compare );
  47         CPPUNIT_TEST( CompareNoCase );
  48         CPPUNIT_TEST( Contains );
  49         CPPUNIT_TEST( ToLong );
  50         CPPUNIT_TEST( ToULong );
  51 #ifdef wxLongLong_t
  52         CPPUNIT_TEST( ToLongLong );
  53         CPPUNIT_TEST( ToULongLong );
  54 #endif // wxLongLong_t
  55         CPPUNIT_TEST( ToDouble );
  56         CPPUNIT_TEST( StringBuf );
  57         CPPUNIT_TEST( UTF8Buf );
  58         CPPUNIT_TEST( CStrDataTernaryOperator );
  59         CPPUNIT_TEST( CStrDataOperators );
  60         CPPUNIT_TEST( CStrDataImplicitConversion );
  61         CPPUNIT_TEST( ExplicitConversion );
  62         CPPUNIT_TEST( IndexedAccess );
  63         CPPUNIT_TEST( BeforeAndAfter );
  64         CPPUNIT_TEST( ScopedBuffers );
  65     CPPUNIT_TEST_SUITE_END();
  66
  67     void String();
  68     void PChar();
  69     void Format();
  70     void Constructors();
  71     void StaticConstructors();
  72     void Extraction();
  73     void Trim();
  74     void Find();
  75     void Replace();
  76     void Match();
  77     void CaseChanges();
  78     void Compare();
  79     void CompareNoCase();
  80     void Contains();
  81     void ToLong();
  82     void ToULong();
  83 #ifdef wxLongLong_t
  84     void ToLongLong();
  85     void ToULongLong();
  86 #endif // wxLongLong_t
  87     void ToDouble();
  88     void StringBuf();
  89     void UTF8Buf();
  90     void CStrDataTernaryOperator();
  91     void DoCStrDataTernaryOperator(bool cond);
  92     void CStrDataOperators();
  93     void CStrDataImplicitConversion();
  94     void ExplicitConversion();
  95     void IndexedAccess();
  96     void BeforeAndAfter();
  97     void ScopedBuffers();
  98
  99     DECLARE_NO_COPY_CLASS(StringTestCase)
 100 };
 101
 102 // register in the unnamed registry so that these tests are run by default
 103 CPPUNIT_TEST_SUITE_REGISTRATION( StringTestCase );
 104
 105 // also include in it's own registry so that these tests can be run alone
 106 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( StringTestCase, "StringTestCase" );
 107
 108 StringTestCase::StringTestCase()
 109 {
 110 }
 111
 112 void StringTestCase::String()
 113 {
 114     wxString a, b, c;
 115
 116     a.reserve (128);
 117     b.reserve (128);
 118     c.reserve (128);
 119
 120     for (int i = 0; i < 2; ++i)
 121     {
 122         a = _T("Hello");
 123         b = _T(" world");
 124         c = _T("! How'ya doin'?");
 125         a += b;
 126         a += c;
 127         c = _T("Hello world! What's up?");
 128         CPPUNIT_ASSERT( c != a );
 129     }
 130 }
 131
 132 void StringTestCase::PChar()
 133 {
 134     wxChar a [128];
 135     wxChar b [128];
 136     wxChar c [128];
 137
 138     for (int i = 0; i < 2; ++i)
 139     {
 140         wxStrcpy (a, _T("Hello"));
 141         wxStrcpy (b, _T(" world"));
 142         wxStrcpy (c, _T("! How'ya doin'?"));
 143         wxStrcat (a, b);
 144         wxStrcat (a, c);
 145         wxStrcpy (c, _T("Hello world! What's up?"));
 146         CPPUNIT_ASSERT( wxStrcmp (c, a) != 0 );
 147     }
 148 }
 149
 150 void StringTestCase::Format()
 151 {
 152     wxString s1,s2;
 153     s1.Printf(_T("%03d"), 18);
 154     CPPUNIT_ASSERT( s1 == wxString::Format(_T("%03d"), 18) );
 155     s2.Printf(_T("Number 18: %s\n"), s1.c_str());
 156     CPPUNIT_ASSERT( s2 == wxString::Format(_T("Number 18: %s\n"), s1.c_str()) );
 157
 158     static const size_t lengths[] = { 1, 512, 1024, 1025, 2048, 4096, 4097 };
 159     for ( size_t n = 0; n < WXSIZEOF(lengths); n++ )
 160     {
 161         const size_t len = lengths[n];
 162
 163         wxString s(_T('Z'), len);
 164         CPPUNIT_ASSERT_EQUAL( len, wxString::Format(_T("%s"), s.c_str()).length());
 165     }
 166 }
 167
 168 void StringTestCase::Constructors()
 169 {
 170     CPPUNIT_ASSERT_EQUAL( "", wxString('Z', 0) );
 171     CPPUNIT_ASSERT_EQUAL( "Z", wxString('Z') );
 172     CPPUNIT_ASSERT_EQUAL( "ZZZZ", wxString('Z', 4) );
 173     CPPUNIT_ASSERT_EQUAL( "Hell", wxString("Hello", 4) );
 174     CPPUNIT_ASSERT_EQUAL( "Hello", wxString("Hello", 5) );
 175
 176 #if wxUSE_UNICODE
 177     CPPUNIT_ASSERT_EQUAL( L"", wxString(L'Z', 0) );
 178     CPPUNIT_ASSERT_EQUAL( L"Z", wxString(L'Z') );
 179     CPPUNIT_ASSERT_EQUAL( L"ZZZZ", wxString(L'Z', 4) );
 180     CPPUNIT_ASSERT_EQUAL( L"Hell", wxString(L"Hello", 4) );
 181     CPPUNIT_ASSERT_EQUAL( L"Hello", wxString(L"Hello", 5) );
 182 #endif // wxUSE_UNICODE
 183
 184     static const char *s = "?really!";
 185     const char *start = wxStrchr(s, 'r');
 186     const char *end = wxStrchr(s, '!');
 187     CPPUNIT_ASSERT_EQUAL( "really", wxString(start, end) );
 188
 189     // test if creating string from NULL C pointer works:
 190     CPPUNIT_ASSERT_EQUAL( "", wxString((const char *)NULL) );
 191 }
 192
 193 void StringTestCase::StaticConstructors()
 194 {
 195     CPPUNIT_ASSERT_EQUAL( "", wxString::FromAscii("") );
 196     CPPUNIT_ASSERT_EQUAL( "", wxString::FromAscii("Hello", 0) );
 197     CPPUNIT_ASSERT_EQUAL( "Hell", wxString::FromAscii("Hello", 4) );
 198     CPPUNIT_ASSERT_EQUAL( "Hello", wxString::FromAscii("Hello", 5) );
 199     CPPUNIT_ASSERT_EQUAL( "Hello", wxString::FromAscii("Hello") );
 200
 201     // FIXME: this doesn't work currently but should!
 202     //CPPUNIT_ASSERT_EQUAL( 1, wxString::FromAscii("", 1).length() );
 203
 204
 205     CPPUNIT_ASSERT_EQUAL( "", wxString::FromUTF8("") );
 206     CPPUNIT_ASSERT_EQUAL( "", wxString::FromUTF8("Hello", 0) );
 207     CPPUNIT_ASSERT_EQUAL( "Hell", wxString::FromUTF8("Hello", 4) );
 208     CPPUNIT_ASSERT_EQUAL( "Hello", wxString::FromUTF8("Hello", 5) );
 209     CPPUNIT_ASSERT_EQUAL( "Hello", wxString::FromUTF8("Hello") );
 210
 211     //CPPUNIT_ASSERT_EQUAL( 1, wxString::FromUTF8("", 1).length() );
 212 }
 213
 214 void StringTestCase::Extraction()
 215 {
 216     wxString s(_T("Hello, world!"));
 217
 218     CPPUNIT_ASSERT( wxStrcmp( s.c_str() , _T("Hello, world!") ) == 0 );
 219     CPPUNIT_ASSERT( wxStrcmp( s.Left(5).c_str() , _T("Hello") ) == 0 );
 220     CPPUNIT_ASSERT( wxStrcmp( s.Right(6).c_str() , _T("world!") ) == 0 );
 221     CPPUNIT_ASSERT( wxStrcmp( s(3, 5).c_str() , _T("lo, w") ) == 0 );
 222     CPPUNIT_ASSERT( wxStrcmp( s.Mid(3).c_str() , _T("lo, world!") ) == 0 );
 223     CPPUNIT_ASSERT( wxStrcmp( s.substr(3, 5).c_str() , _T("lo, w") ) == 0 );
 224     CPPUNIT_ASSERT( wxStrcmp( s.substr(3).c_str() , _T("lo, world!") ) == 0 );
 225
 226 #if wxUSE_UNICODE
 227     static const char *germanUTF8 = "Oberfl\303\244che";
 228     wxString strUnicode(wxString::FromUTF8(germanUTF8));
 229
 230     CPPUNIT_ASSERT( strUnicode.Mid(0, 10) == strUnicode );
 231     CPPUNIT_ASSERT( strUnicode.Mid(7, 2) == "ch" );
 232 #endif // wxUSE_UNICODE
 233
 234     wxString rest;
 235
 236     #define TEST_STARTS_WITH(prefix, correct_rest, result)                    \
 237         CPPUNIT_ASSERT_EQUAL(result, s.StartsWith(prefix, &rest));            \
 238         if ( result )                                                         \
 239             CPPUNIT_ASSERT_EQUAL(correct_rest, rest)
 240
 241     TEST_STARTS_WITH( _T("Hello"),           _T(", world!"),      true  );
 242     TEST_STARTS_WITH( _T("Hello, "),         _T("world!"),        true  );
 243     TEST_STARTS_WITH( _T("Hello, world!"),   _T(""),              true  );
 244     TEST_STARTS_WITH( _T("Hello, world!!!"), _T(""),              false );
 245     TEST_STARTS_WITH( _T(""),                _T("Hello, world!"), true  );
 246     TEST_STARTS_WITH( _T("Goodbye"),         _T(""),              false );
 247     TEST_STARTS_WITH( _T("Hi"),              _T(""),              false );
 248
 249     #undef TEST_STARTS_WITH
 250
 251     rest = "Hello world";
 252     CPPUNIT_ASSERT( rest.StartsWith("Hello ", &rest) );
 253     CPPUNIT_ASSERT_EQUAL("world", rest);
 254
 255     #define TEST_ENDS_WITH(suffix, correct_rest, result)                      \
 256         CPPUNIT_ASSERT_EQUAL(result, s.EndsWith(suffix, &rest));              \
 257         if ( result )                                                         \
 258             CPPUNIT_ASSERT_EQUAL(correct_rest, rest)
 259
 260     TEST_ENDS_WITH( _T(""),                 _T("Hello, world!"), true  );
 261     TEST_ENDS_WITH( _T("!"),                _T("Hello, world"),  true  );
 262     TEST_ENDS_WITH( _T(", world!"),         _T("Hello"),         true  );
 263     TEST_ENDS_WITH( _T("ello, world!"),     _T("H"),             true  );
 264     TEST_ENDS_WITH( _T("Hello, world!"),    _T(""),              true  );
 265     TEST_ENDS_WITH( _T("very long string"), _T(""),              false );
 266     TEST_ENDS_WITH( _T("?"),                _T(""),              false );
 267     TEST_ENDS_WITH( _T("Hello, world"),     _T(""),              false );
 268     TEST_ENDS_WITH( _T("Gello, world!"),    _T(""),              false );
 269
 270     #undef TEST_ENDS_WITH
 271 }
 272
 273 void StringTestCase::Trim()
 274 {
 275     #define TEST_TRIM( str , dir , result )  \
 276         CPPUNIT_ASSERT( wxString(str).Trim(dir) == result )
 277
 278     TEST_TRIM( _T("  Test  "),  true, _T("  Test") );
 279     TEST_TRIM( _T("    "),      true, _T("")       );
 280     TEST_TRIM( _T(" "),         true, _T("")       );
 281     TEST_TRIM( _T(""),          true, _T("")       );
 282
 283     TEST_TRIM( _T("  Test  "),  false, _T("Test  ") );
 284     TEST_TRIM( _T("    "),      false, _T("")       );
 285     TEST_TRIM( _T(" "),         false, _T("")       );
 286     TEST_TRIM( _T(""),          false, _T("")       );
 287
 288     #undef TEST_TRIM
 289 }
 290
 291 void StringTestCase::Find()
 292 {
 293     #define TEST_FIND( str , start , result )  \
 294         CPPUNIT_ASSERT( wxString(str).find(_T("ell"), start) == result );
 295
 296     TEST_FIND( _T("Well, hello world"),  0, 1              );
 297     TEST_FIND( _T("Well, hello world"),  6, 7              );
 298     TEST_FIND( _T("Well, hello world"),  9, wxString::npos );
 299
 300     #undef TEST_FIND
 301 }
 302
 303 void StringTestCase::Replace()
 304 {
 305     #define TEST_REPLACE( original , pos , len , replacement , result ) \
 306         { \
 307             wxString s = original; \
 308             s.replace( pos , len , replacement ); \
 309             CPPUNIT_ASSERT_EQUAL( result, s ); \
 310         }
 311
 312     TEST_REPLACE( _T("012-AWORD-XYZ"), 4, 5, _T("BWORD"),  _T("012-BWORD-XYZ") );
 313     TEST_REPLACE( _T("increase"),      0, 2, _T("de"),     _T("decrease")      );
 314     TEST_REPLACE( _T("wxWindow"),      8, 0, _T("s"),      _T("wxWindows")     );
 315     TEST_REPLACE( _T("foobar"),        3, 0, _T("-"),      _T("foo-bar")       );
 316     TEST_REPLACE( _T("barfoo"),        0, 6, _T("foobar"), _T("foobar")        );
 317
 318
 319     #define TEST_NULLCHARREPLACE( o , olen, pos , len , replacement , r, rlen ) \
 320         { \
 321             wxString s(o,olen); \
 322             s.replace( pos , len , replacement ); \
 323             CPPUNIT_ASSERT_EQUAL( wxString(r,rlen), s ); \
 324         }
 325
 326     TEST_NULLCHARREPLACE( _T("null\0char"), 9, 5, 1, _T("d"),
 327                           _T("null\0dhar"), 9 );
 328
 329     #define TEST_WXREPLACE( o , olen, olds, news, all, r, rlen ) \
 330         { \
 331             wxString s(o,olen); \
 332             s.Replace( olds, news, all ); \
 333             CPPUNIT_ASSERT_EQUAL( wxString(r,rlen), s ); \
 334         }
 335
 336     TEST_WXREPLACE( _T("null\0char"), 9, _T("c"), _T("de"), true,
 337                           _T("null\0dehar"), 10 );
 338
 339     TEST_WXREPLACE( _T("null\0dehar"), 10, _T("de"), _T("c"), true,
 340                           _T("null\0char"), 9 );
 341
 342     TEST_WXREPLACE( "life", 4, "f", "", false, "lie", 3 );
 343     TEST_WXREPLACE( "life", 4, "f", "", true, "lie", 3 );
 344     TEST_WXREPLACE( "life", 4, "fe", "ve", true, "live", 4 );
 345     TEST_WXREPLACE( "xx", 2, "x", "yy", true, "yyyy", 4 );
 346     TEST_WXREPLACE( "xxx", 3, "xx", "z", true, "zx", 2 );
 347
 348     #undef TEST_WXREPLACE
 349     #undef TEST_NULLCHARREPLACE
 350     #undef TEST_REPLACE
 351 }
 352
 353 void StringTestCase::Match()
 354 {
 355     #define TEST_MATCH( s1 , s2 , result ) \
 356         CPPUNIT_ASSERT( wxString(s1).Matches(s2) == result )
 357
 358     TEST_MATCH( _T("foobar"),    _T("foo*"),   true  );
 359     TEST_MATCH( _T("foobar"),    _T("*oo*"),   true  );
 360     TEST_MATCH( _T("foobar"),    _T("*bar"),   true  );
 361     TEST_MATCH( _T("foobar"),    _T("??????"), true  );
 362     TEST_MATCH( _T("foobar"),    _T("f??b*"),  true  );
 363     TEST_MATCH( _T("foobar"),    _T("f?b*"),   false );
 364     TEST_MATCH( _T("foobar"),    _T("*goo*"),  false );
 365     TEST_MATCH( _T("foobar"),    _T("*foo"),   false );
 366     TEST_MATCH( _T("foobarfoo"), _T("*foo"),   true  );
 367     TEST_MATCH( _T(""),          _T("*"),      true  );
 368     TEST_MATCH( _T(""),          _T("?"),      false );
 369
 370     #undef TEST_MATCH
 371 }
 372
 373
 374 void StringTestCase::CaseChanges()
 375 {
 376     wxString s1(_T("Hello!"));
 377     wxString s1u(s1);
 378     wxString s1l(s1);
 379     s1u.MakeUpper();
 380     s1l.MakeLower();
 381
 382     CPPUNIT_ASSERT_EQUAL( _T("HELLO!"), s1u );
 383     CPPUNIT_ASSERT_EQUAL( _T("hello!"), s1l );
 384
 385     wxString s2u, s2l;
 386     s2u.MakeUpper();
 387     s2l.MakeLower();
 388
 389     CPPUNIT_ASSERT_EQUAL( "", s2u );
 390     CPPUNIT_ASSERT_EQUAL( "", s2l );
 391
 392
 393     wxString s3("good bye");
 394     CPPUNIT_ASSERT_EQUAL( "Good bye", s3.Capitalize() );
 395     s3.MakeCapitalized();
 396     CPPUNIT_ASSERT_EQUAL( "Good bye", s3 );
 397
 398     CPPUNIT_ASSERT_EQUAL( "Abc", wxString("ABC").Capitalize() );
 399
 400     CPPUNIT_ASSERT_EQUAL( "", wxString().Capitalize() );
 401 }
 402
 403 void StringTestCase::Compare()
 404 {
 405     wxString s1 = wxT("AHH");
 406     wxString eq = wxT("AHH");
 407     wxString neq1 = wxT("HAH");
 408     wxString neq2 = wxT("AH");
 409     wxString neq3 = wxT("AHHH");
 410     wxString neq4 = wxT("AhH");
 411
 412     CPPUNIT_ASSERT( s1 == eq );
 413     CPPUNIT_ASSERT( s1 != neq1 );
 414     CPPUNIT_ASSERT( s1 != neq2 );
 415     CPPUNIT_ASSERT( s1 != neq3 );
 416     CPPUNIT_ASSERT( s1 != neq4 );
 417
 418     CPPUNIT_ASSERT( s1 == wxT("AHH") );
 419     CPPUNIT_ASSERT( s1 != wxT("no") );
 420     CPPUNIT_ASSERT( s1 < wxT("AZ") );
 421     CPPUNIT_ASSERT( s1 <= wxT("AZ") );
 422     CPPUNIT_ASSERT( s1 <= wxT("AHH") );
 423     CPPUNIT_ASSERT( s1 > wxT("AA") );
 424     CPPUNIT_ASSERT( s1 >= wxT("AA") );
 425     CPPUNIT_ASSERT( s1 >= wxT("AHH") );
 426
 427     // test comparison with C strings in Unicode build (must work in ANSI as
 428     // well, of course):
 429     CPPUNIT_ASSERT( s1 == "AHH" );
 430     CPPUNIT_ASSERT( s1 != "no" );
 431     CPPUNIT_ASSERT( s1 < "AZ" );
 432     CPPUNIT_ASSERT( s1 <= "AZ" );
 433     CPPUNIT_ASSERT( s1 <= "AHH" );
 434     CPPUNIT_ASSERT( s1 > "AA" );
 435     CPPUNIT_ASSERT( s1 >= "AA" );
 436     CPPUNIT_ASSERT( s1 >= "AHH" );
 437
 438 //    wxString _s1 = wxT("A\0HH");
 439 //    wxString _eq = wxT("A\0HH");
 440 //    wxString _neq1 = wxT("H\0AH");
 441 //    wxString _neq2 = wxT("A\0H");
 442 //    wxString _neq3 = wxT("A\0HHH");
 443 //    wxString _neq4 = wxT("A\0hH");
 444     s1.insert(1,1,'\0');
 445     eq.insert(1,1,'\0');
 446     neq1.insert(1,1,'\0');
 447     neq2.insert(1,1,'\0');
 448     neq3.insert(1,1,'\0');
 449     neq4.insert(1,1,'\0');
 450
 451     CPPUNIT_ASSERT( s1 == eq );
 452     CPPUNIT_ASSERT( s1 != neq1 );
 453     CPPUNIT_ASSERT( s1 != neq2 );
 454     CPPUNIT_ASSERT( s1 != neq3 );
 455     CPPUNIT_ASSERT( s1 != neq4 );
 456 }
 457
 458 void StringTestCase::CompareNoCase()
 459 {
 460     wxString s1 = wxT("AHH");
 461     wxString eq = wxT("AHH");
 462     wxString eq2 = wxT("AhH");
 463     wxString eq3 = wxT("ahh");
 464     wxString neq = wxT("HAH");
 465     wxString neq2 = wxT("AH");
 466     wxString neq3 = wxT("AHHH");
 467
 468     #define CPPUNIT_CNCEQ_ASSERT(s1, s2) CPPUNIT_ASSERT( s1.CmpNoCase(s2) == 0)
 469     #define CPPUNIT_CNCNEQ_ASSERT(s1, s2) CPPUNIT_ASSERT( s1.CmpNoCase(s2) != 0)
 470
 471     CPPUNIT_CNCEQ_ASSERT( s1, eq );
 472     CPPUNIT_CNCEQ_ASSERT( s1, eq2 );
 473     CPPUNIT_CNCEQ_ASSERT( s1, eq3 );
 474
 475     CPPUNIT_CNCNEQ_ASSERT( s1, neq );
 476     CPPUNIT_CNCNEQ_ASSERT( s1, neq2 );
 477     CPPUNIT_CNCNEQ_ASSERT( s1, neq3 );
 478
 479
 480 //    wxString _s1 = wxT("A\0HH");
 481 //    wxString _eq = wxT("A\0HH");
 482 //    wxString _eq2 = wxT("A\0hH");
 483 //    wxString _eq3 = wxT("a\0hh");
 484 //    wxString _neq = wxT("H\0AH");
 485 //    wxString _neq2 = wxT("A\0H");
 486 //    wxString _neq3 = wxT("A\0HHH");
 487
 488     s1.insert(1,1,'\0');
 489     eq.insert(1,1,'\0');
 490     eq2.insert(1,1,'\0');
 491     eq3.insert(1,1,'\0');
 492     neq.insert(1,1,'\0');
 493     neq2.insert(1,1,'\0');
 494     neq3.insert(1,1,'\0');
 495
 496     CPPUNIT_CNCEQ_ASSERT( s1, eq );
 497     CPPUNIT_CNCEQ_ASSERT( s1, eq2 );
 498     CPPUNIT_CNCEQ_ASSERT( s1, eq3 );
 499
 500     CPPUNIT_CNCNEQ_ASSERT( s1, neq );
 501     CPPUNIT_CNCNEQ_ASSERT( s1, neq2 );
 502     CPPUNIT_CNCNEQ_ASSERT( s1, neq3 );
 503 }
 504
 505 void StringTestCase::Contains()
 506 {
 507     static const struct ContainsData
 508     {
 509         const wxChar *hay;
 510         const wxChar *needle;
 511         bool contains;
 512     } containsData[] =
 513     {
 514         { _T(""),       _T(""),         true  },
 515         { _T(""),       _T("foo"),      false },
 516         { _T("foo"),    _T(""),         true  },
 517         { _T("foo"),    _T("f"),        true  },
 518         { _T("foo"),    _T("o"),        true  },
 519         { _T("foo"),    _T("oo"),       true  },
 520         { _T("foo"),    _T("ooo"),      false },
 521         { _T("foo"),    _T("oooo"),     false },
 522         { _T("foo"),    _T("fooo"),     false },
 523     };
 524
 525     for ( size_t n = 0; n < WXSIZEOF(containsData); n++ )
 526     {
 527         const ContainsData& cd = containsData[n];
 528         CPPUNIT_ASSERT_EQUAL( cd.contains, wxString(cd.hay).Contains(cd.needle) );
 529     }
 530 }
 531
 532 // flags used in ToLongData.flags
 533 enum
 534 {
 535     Number_Ok       = 0,
 536     Number_Invalid  = 1,
 537     Number_Unsigned = 2,    // if not specified, works for signed conversion
 538     Number_Signed   = 4,    // if not specified, works for unsigned
 539     Number_LongLong = 8,    // only for long long tests
 540     Number_Long     = 16    // only for long tests
 541 };
 542
 543 static const struct ToLongData
 544 {
 545     const wxChar *str;
 546 #ifdef wxLongLong_t
 547     wxLongLong_t value;
 548 #else
 549     long value;
 550 #endif // wxLongLong_t
 551     int flags;
 552
 553     long LValue() const { return value; }
 554     unsigned long ULValue() const { return value; }
 555 #ifdef wxLongLong_t
 556     wxLongLong_t LLValue() const { return value; }
 557     wxULongLong_t ULLValue() const { return (wxULongLong_t)value; }
 558 #endif // wxLongLong_t
 559
 560     bool IsOk() const { return !(flags & Number_Invalid); }
 561 } longData[] =
 562 {
 563     { _T("1"), 1, Number_Ok },
 564     { _T("0"), 0, Number_Ok },
 565     { _T("a"), 0, Number_Invalid },
 566     { _T("12345"), 12345, Number_Ok },
 567     { _T("--1"), 0, Number_Invalid },
 568
 569     { _T("-1"), -1, Number_Signed | Number_Long },
 570     // this is surprizing but consistent with strtoul() behaviour
 571     { _T("-1"), ULONG_MAX, Number_Unsigned | Number_Long },
 572
 573     // this must overflow, even with 64 bit long
 574     { _T("922337203685477580711"), 0, Number_Invalid },
 575
 576 #ifdef wxLongLong_t
 577     { _T("2147483648"), wxLL(2147483648), Number_LongLong },
 578     { _T("-2147483648"), wxLL(-2147483648), Number_LongLong | Number_Signed },
 579     { _T("9223372036854775808"), wxULL(9223372036854775808), Number_LongLong |
 580                                                              Number_Unsigned },
 581 #endif // wxLongLong_t
 582 };
 583
 584 void StringTestCase::ToLong()
 585 {
 586     long l;
 587     for ( size_t n = 0; n < WXSIZEOF(longData); n++ )
 588     {
 589         const ToLongData& ld = longData[n];
 590
 591         if ( ld.flags & (Number_LongLong | Number_Unsigned) )
 592             continue;
 593
 594         // NOTE: unless you're using some exotic locale, ToCLong and ToLong
 595         //       should behave the same for our test data set:
 596
 597         CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToCLong(&l) );
 598         if ( ld.IsOk() )
 599             CPPUNIT_ASSERT_EQUAL( ld.LValue(), l );
 600
 601         CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToLong(&l) );
 602         if ( ld.IsOk() )
 603             CPPUNIT_ASSERT_EQUAL( ld.LValue(), l );
 604     }
 605 }
 606
 607 void StringTestCase::ToULong()
 608 {
 609     unsigned long ul;
 610     for ( size_t n = 0; n < WXSIZEOF(longData); n++ )
 611     {
 612         const ToLongData& ld = longData[n];
 613
 614         if ( ld.flags & (Number_LongLong | Number_Signed) )
 615             continue;
 616
 617         // NOTE: unless you're using some exotic locale, ToCLong and ToLong
 618         //       should behave the same for our test data set:
 619
 620         CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToCULong(&ul) );
 621         if ( ld.IsOk() )
 622             CPPUNIT_ASSERT_EQUAL( ld.ULValue(), ul );
 623
 624         CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToULong(&ul) );
 625         if ( ld.IsOk() )
 626             CPPUNIT_ASSERT_EQUAL( ld.ULValue(), ul );
 627     }
 628 }
 629
 630 #ifdef wxLongLong_t
 631
 632 void StringTestCase::ToLongLong()
 633 {
 634     wxLongLong_t l;
 635     for ( size_t n = 0; n < WXSIZEOF(longData); n++ )
 636     {
 637         const ToLongData& ld = longData[n];
 638
 639         if ( ld.flags & (Number_Long | Number_Unsigned) )
 640             continue;
 641
 642         CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToLongLong(&l) );
 643         if ( ld.IsOk() )
 644             CPPUNIT_ASSERT_EQUAL( ld.LLValue(), l );
 645     }
 646 }
 647
 648 void StringTestCase::ToULongLong()
 649 {
 650     wxULongLong_t ul;
 651     for ( size_t n = 0; n < WXSIZEOF(longData); n++ )
 652     {
 653         const ToLongData& ld = longData[n];
 654
 655         if ( ld.flags & (Number_Long | Number_Signed) )
 656             continue;
 657
 658         CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToULongLong(&ul) );
 659         if ( ld.IsOk() )
 660             CPPUNIT_ASSERT_EQUAL( ld.ULLValue(), ul );
 661     }
 662 }
 663
 664 #endif // wxLongLong_t
 665
 666 void StringTestCase::ToDouble()
 667 {
 668     double d;
 669     static const struct ToDoubleData
 670     {
 671         const wxChar *str;
 672         double value;
 673         bool ok;
 674     } doubleData[] =
 675     {
 676         { _T("1"), 1, true },
 677         { _T("1.23"), 1.23, true },
 678         { _T(".1"), .1, true },
 679         { _T("1."), 1, true },
 680         { _T("1.."), 0, false },
 681         { _T("0"), 0, true },
 682         { _T("a"), 0, false },
 683         { _T("12345"), 12345, true },
 684         { _T("-1"), -1, true },
 685         { _T("--1"), 0, false },
 686         { _T("-3E-5"), -3E-5, true },
 687         { _T("-3E-abcde5"), 0, false },
 688     };
 689
 690     // test ToCDouble() first:
 691
 692     size_t n;
 693     for ( n = 0; n < WXSIZEOF(doubleData); n++ )
 694     {
 695         const ToDoubleData& ld = doubleData[n];
 696         CPPUNIT_ASSERT_EQUAL( ld.ok, wxString(ld.str).ToCDouble(&d) );
 697         if ( ld.ok )
 698             CPPUNIT_ASSERT_EQUAL( ld.value, d );
 699     }
 700
 701
 702     // test ToDouble() now:
 703     // NOTE: for the test to be reliable, we need to set the locale explicitely
 704     //       so that we know the decimal point character to use
 705
 706     if (!wxLocale::IsAvailable(wxLANGUAGE_FRENCH))
 707         return;     // you should have french support installed to continue this test!
 708
 709     wxLocale *locale = new wxLocale;
 710
 711     // don't load default catalog, it may be unavailable:
 712     CPPUNIT_ASSERT( locale->Init(wxLANGUAGE_FRENCH, wxLOCALE_CONV_ENCODING) );
 713
 714     static const struct ToDoubleData doubleData2[] =
 715     {
 716         { _T("1"), 1, true },
 717         { _T("1,23"), 1.23, true },
 718         { _T(",1"), .1, true },
 719         { _T("1,"), 1, true },
 720         { _T("1,,"), 0, false },
 721         { _T("0"), 0, true },
 722         { _T("a"), 0, false },
 723         { _T("12345"), 12345, true },
 724         { _T("-1"), -1, true },
 725         { _T("--1"), 0, false },
 726         { _T("-3E-5"), -3E-5, true },
 727         { _T("-3E-abcde5"), 0, false },
 728     };
 729
 730     for ( n = 0; n < WXSIZEOF(doubleData2); n++ )
 731     {
 732         const ToDoubleData& ld = doubleData2[n];
 733         CPPUNIT_ASSERT_EQUAL( ld.ok, wxString(ld.str).ToDouble(&d) );
 734         if ( ld.ok )
 735             CPPUNIT_ASSERT_EQUAL( ld.value, d );
 736     }
 737
 738     delete locale;
 739 }
 740
 741 void StringTestCase::StringBuf()
 742 {
 743     // check that buffer can be used to write into the string
 744     wxString s;
 745     wxStrcpy(wxStringBuffer(s, 10), _T("foo"));
 746
 747     CPPUNIT_ASSERT_EQUAL(3, s.length());
 748     CPPUNIT_ASSERT(_T('f') == s[0u]);
 749     CPPUNIT_ASSERT(_T('o') == s[1]);
 750     CPPUNIT_ASSERT(_T('o') == s[2]);
 751
 752     {
 753         // also check that the buffer initially contains the original string
 754         // contents
 755         wxStringBuffer buf(s, 10);
 756         CPPUNIT_ASSERT_EQUAL( _T('f'), buf[0] );
 757         CPPUNIT_ASSERT_EQUAL( _T('o'), buf[1] );
 758         CPPUNIT_ASSERT_EQUAL( _T('o'), buf[2] );
 759         CPPUNIT_ASSERT_EQUAL( _T('\0'), buf[3] );
 760     }
 761
 762     {
 763         wxStringBufferLength buf(s, 10);
 764         CPPUNIT_ASSERT_EQUAL( _T('f'), buf[0] );
 765         CPPUNIT_ASSERT_EQUAL( _T('o'), buf[1] );
 766         CPPUNIT_ASSERT_EQUAL( _T('o'), buf[2] );
 767         CPPUNIT_ASSERT_EQUAL( _T('\0'), buf[3] );
 768
 769         // and check that it can be used to write only the specified number of
 770         // characters to the string
 771         wxStrcpy(buf, _T("barrbaz"));
 772         buf.SetLength(4);
 773     }
 774
 775     CPPUNIT_ASSERT_EQUAL(4, s.length());
 776     CPPUNIT_ASSERT(_T('b') == s[0u]);
 777     CPPUNIT_ASSERT(_T('a') == s[1]);
 778     CPPUNIT_ASSERT(_T('r') == s[2]);
 779     CPPUNIT_ASSERT(_T('r') == s[3]);
 780
 781     // check that creating buffer of length smaller than string works, i.e. at
 782     // least doesn't crash (it would if we naively copied the entire original
 783     // string contents in the buffer)
 784     *wxStringBuffer(s, 1) = '!';
 785 }
 786
 787 void StringTestCase::UTF8Buf()
 788 {
 789 #if wxUSE_UNICODE
 790     // "czech" in Czech ("cestina"):
 791     static const char *textUTF8 = "\304\215e\305\241tina";
 792     static const wchar_t textUTF16[] = {0x10D, 0x65, 0x161, 0x74, 0x69, 0x6E, 0x61, 0};
 793
 794     wxString s;
 795     wxStrcpy(wxUTF8StringBuffer(s, 9), textUTF8);
 796     CPPUNIT_ASSERT(s == textUTF16);
 797
 798     {
 799         wxUTF8StringBufferLength buf(s, 20);
 800         wxStrcpy(buf, textUTF8);
 801         buf.SetLength(5);
 802     }
 803     CPPUNIT_ASSERT(s == wxString(textUTF16, 0, 3));
 804 #endif // wxUSE_UNICODE
 805 }
 806
 807
 808
 809 void StringTestCase::CStrDataTernaryOperator()
 810 {
 811     DoCStrDataTernaryOperator(true);
 812     DoCStrDataTernaryOperator(false);
 813 }
 814
 815 template<typename T> bool CheckStr(const wxString& expected, T s)
 816 {
 817     return expected == wxString(s);
 818 }
 819
 820 void StringTestCase::DoCStrDataTernaryOperator(bool cond)
 821 {
 822     // test compilation of wxCStrData when used with operator?: (the asserts
 823     // are not very important, we're testing if the code compiles at all):
 824
 825     wxString s("foo");
 826
 827     const wchar_t *wcStr = L"foo";
 828     CPPUNIT_ASSERT( CheckStr(s, (cond ? s.c_str() : wcStr)) );
 829     CPPUNIT_ASSERT( CheckStr(s, (cond ? s.c_str() : L"foo")) );
 830     CPPUNIT_ASSERT( CheckStr(s, (cond ? wcStr : s.c_str())) );
 831     CPPUNIT_ASSERT( CheckStr(s, (cond ? L"foo" : s.c_str())) );
 832
 833     const char *mbStr = "foo";
 834     CPPUNIT_ASSERT( CheckStr(s, (cond ? s.c_str() : mbStr)) );
 835     CPPUNIT_ASSERT( CheckStr(s, (cond ? s.c_str() : "foo")) );
 836     CPPUNIT_ASSERT( CheckStr(s, (cond ? mbStr : s.c_str())) );
 837     CPPUNIT_ASSERT( CheckStr(s, (cond ? "foo" : s.c_str())) );
 838
 839     wxString empty("");
 840     CPPUNIT_ASSERT( CheckStr(empty, (cond ? empty.c_str() : wxEmptyString)) );
 841     CPPUNIT_ASSERT( CheckStr(empty, (cond ? wxEmptyString : empty.c_str())) );
 842 }
 843
 844 void StringTestCase::CStrDataOperators()
 845 {
 846     wxString s("hello");
 847
 848     CPPUNIT_ASSERT( s.c_str()[0] == 'h' );
 849     CPPUNIT_ASSERT( s.c_str()[1] == 'e' );
 850
 851     // IMPORTANT: at least with the CRT coming with MSVC++ 2008 trying to access
 852     //            the final character results in an assert failure (with debug CRT)
 853     //CPPUNIT_ASSERT( s.c_str()[5] == '\0' );
 854
 855     CPPUNIT_ASSERT( *s.c_str() == 'h' );
 856     CPPUNIT_ASSERT( *(s.c_str() + 2) == 'l' );
 857     //CPPUNIT_ASSERT( *(s.c_str() + 5) == '\0' );
 858 }
 859
 860 bool CheckStrChar(const wxString& expected, char *s)
 861     { return CheckStr(expected, s); }
 862 bool CheckStrWChar(const wxString& expected, wchar_t *s)
 863     { return CheckStr(expected, s); }
 864 bool CheckStrConstChar(const wxString& expected, const char *s)
 865     { return CheckStr(expected, s); }
 866 bool CheckStrConstWChar(const wxString& expected, const wchar_t *s)
 867     { return CheckStr(expected, s); }
 868
 869 void StringTestCase::CStrDataImplicitConversion()
 870 {
 871     wxString s("foo");
 872
 873     CPPUNIT_ASSERT( CheckStrConstWChar(s, s.c_str()) );
 874     CPPUNIT_ASSERT( CheckStrConstChar(s, s.c_str()) );
 875
 876     // implicit conversion of wxString is not available in STL build
 877 #if !wxUSE_STL
 878     CPPUNIT_ASSERT( CheckStrConstWChar(s, s) );
 879     CPPUNIT_ASSERT( CheckStrConstChar(s, s) );
 880 #endif
 881 }
 882
 883 void StringTestCase::ExplicitConversion()
 884 {
 885     wxString s("foo");
 886
 887     CPPUNIT_ASSERT( CheckStr(s, s.mb_str()) );
 888     CPPUNIT_ASSERT( CheckStrConstChar(s, s.mb_str()) );
 889     CPPUNIT_ASSERT( CheckStrChar(s, s.char_str()) );
 890
 891     CPPUNIT_ASSERT( CheckStr(s, s.wc_str()) );
 892     CPPUNIT_ASSERT( CheckStrConstWChar(s, s.wc_str()) );
 893     CPPUNIT_ASSERT( CheckStrWChar(s, s.wchar_str()) );
 894 }
 895
 896 void StringTestCase::IndexedAccess()
 897 {
 898     wxString s("bar");
 899     CPPUNIT_ASSERT_EQUAL( 'r', (char)s[2] );
 900
 901     // this tests for a possible bug in UTF-8 based wxString implementation:
 902     // the 3rd character of the underlying byte string is going to change, but
 903     // the 3rd character of wxString should remain the same
 904     s[0] = L'\xe9';
 905     CPPUNIT_ASSERT_EQUAL( 'r', (char)s[2] );
 906 }
 907
 908 void StringTestCase::BeforeAndAfter()
 909 {
 910     const wxString s(L"letter=\xe9;\xe7a=l\xe0");
 911
 912     CPPUNIT_ASSERT_EQUAL( "letter", s.BeforeFirst('=') );
 913     CPPUNIT_ASSERT_EQUAL( s, s.BeforeFirst('!') );
 914     CPPUNIT_ASSERT_EQUAL( L"letter=\xe9", s.BeforeFirst(';') );
 915
 916     CPPUNIT_ASSERT_EQUAL( L"letter=\xe9;\xe7a", s.BeforeLast('=') );
 917     CPPUNIT_ASSERT_EQUAL( "", s.BeforeLast('!') );
 918     CPPUNIT_ASSERT_EQUAL( L"letter=\xe9", s.BeforeLast(';') );
 919
 920     CPPUNIT_ASSERT_EQUAL( L"\xe9;\xe7a=l\xe0", s.AfterFirst('=') );
 921     CPPUNIT_ASSERT_EQUAL( "", s.AfterFirst('!') );
 922     CPPUNIT_ASSERT_EQUAL( L"\xe7a=l\xe0", s.AfterFirst(';') );
 923
 924     CPPUNIT_ASSERT_EQUAL( L"l\xe0", s.AfterLast('=') );
 925     CPPUNIT_ASSERT_EQUAL( s, s.AfterLast('!') );
 926     CPPUNIT_ASSERT_EQUAL( L"\xe7a=l\xe0", s.AfterLast(';') );
 927 }
 928
 929 void StringTestCase::ScopedBuffers()
 930 {
 931     // wxString relies on efficient buffers, verify they work as they should
 932
 933     const char *literal = "Hello World!";
 934
 935     // non-owned buffer points to the string passed to it
 936     wxScopedCharBuffer sbuf = wxScopedCharBuffer::CreateNonOwned(literal);
 937     CPPUNIT_ASSERT( sbuf.data() == literal );
 938
 939     // a copy of scoped non-owned buffer still points to the same string
 940     wxScopedCharBuffer sbuf2(sbuf);
 941     CPPUNIT_ASSERT( sbuf.data() == sbuf2.data() );
 942
 943     // but assigning it to wxCharBuffer makes a full copy
 944     wxCharBuffer buf(sbuf);
 945     CPPUNIT_ASSERT( buf.data() != literal );
 946     CPPUNIT_ASSERT_EQUAL( literal, buf.data() );
 947
 948     wxCharBuffer buf2 = sbuf;
 949     CPPUNIT_ASSERT( buf2.data() != literal );
 950     CPPUNIT_ASSERT_EQUAL( literal, buf.data() );
 951 }