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 // Copyright:   (c) 2004 Vadim Zeitlin, Wlodzimierz Skiba
   7 ///////////////////////////////////////////////////////////////////////////////
   8
   9 // ----------------------------------------------------------------------------
  10 // headers
  11 // ----------------------------------------------------------------------------
  12
  13 #include "testprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/wx.h"
  21 #endif // WX_PRECOMP
  22
  23 // ----------------------------------------------------------------------------
  24 // test class
  25 // ----------------------------------------------------------------------------
  26
  27 class StringTestCase : public CppUnit::TestCase
  28 {
  29 public:
  30     StringTestCase();
  31
  32 private:
  33     CPPUNIT_TEST_SUITE( StringTestCase );
  34         CPPUNIT_TEST( String );
  35         CPPUNIT_TEST( PChar );
  36         CPPUNIT_TEST( Format );
  37         CPPUNIT_TEST( FormatUnicode );
  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( FromDouble );
  57         CPPUNIT_TEST( StringBuf );
  58         CPPUNIT_TEST( UTF8Buf );
  59         CPPUNIT_TEST( CStrDataTernaryOperator );
  60         CPPUNIT_TEST( CStrDataOperators );
  61         CPPUNIT_TEST( CStrDataImplicitConversion );
  62         CPPUNIT_TEST( ExplicitConversion );
  63         CPPUNIT_TEST( IndexedAccess );
  64         CPPUNIT_TEST( BeforeAndAfter );
  65         CPPUNIT_TEST( ScopedBuffers );
  66     CPPUNIT_TEST_SUITE_END();
  67
  68     void String();
  69     void PChar();
  70     void Format();
  71     void FormatUnicode();
  72     void Constructors();
  73     void StaticConstructors();
  74     void Extraction();
  75     void Trim();
  76     void Find();
  77     void Replace();
  78     void Match();
  79     void CaseChanges();
  80     void Compare();
  81     void CompareNoCase();
  82     void Contains();
  83     void ToLong();
  84     void ToULong();
  85 #ifdef wxLongLong_t
  86     void ToLongLong();
  87     void ToULongLong();
  88 #endif // wxLongLong_t
  89     void ToDouble();
  90     void FromDouble();
  91     void StringBuf();
  92     void UTF8Buf();
  93     void CStrDataTernaryOperator();
  94     void DoCStrDataTernaryOperator(bool cond);
  95     void CStrDataOperators();
  96     void CStrDataImplicitConversion();
  97     void ExplicitConversion();
  98     void IndexedAccess();
  99     void BeforeAndAfter();
 100     void ScopedBuffers();
 101
 102     DECLARE_NO_COPY_CLASS(StringTestCase)
 103 };
 104
 105 // register in the unnamed registry so that these tests are run by default
 106 CPPUNIT_TEST_SUITE_REGISTRATION( StringTestCase );
 107
 108 // also include in its own registry so that these tests can be run alone
 109 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( StringTestCase, "StringTestCase" );
 110
 111 StringTestCase::StringTestCase()
 112 {
 113 }
 114
 115 void StringTestCase::String()
 116 {
 117     wxString a, b, c;
 118
 119     a.reserve (128);
 120     b.reserve (128);
 121     c.reserve (128);
 122
 123     for (int i = 0; i < 2; ++i)
 124     {
 125         a = wxT("Hello");
 126         b = wxT(" world");
 127         c = wxT("! How'ya doin'?");
 128         a += b;
 129         a += c;
 130         c = wxT("Hello world! What's up?");
 131         CPPUNIT_ASSERT( c != a );
 132     }
 133 }
 134
 135 void StringTestCase::PChar()
 136 {
 137     wxChar a [128];
 138     wxChar b [128];
 139     wxChar c [128];
 140
 141     for (int i = 0; i < 2; ++i)
 142     {
 143         wxStrcpy (a, wxT("Hello"));
 144         wxStrcpy (b, wxT(" world"));
 145         wxStrcpy (c, wxT("! How'ya doin'?"));
 146         wxStrcat (a, b);
 147         wxStrcat (a, c);
 148         wxStrcpy (c, wxT("Hello world! What's up?"));
 149         CPPUNIT_ASSERT( wxStrcmp (c, a) != 0 );
 150     }
 151 }
 152
 153 void StringTestCase::Format()
 154 {
 155     wxString s1,s2;
 156     s1.Printf(wxT("%03d"), 18);
 157     CPPUNIT_ASSERT( s1 == wxString::Format(wxT("%03d"), 18) );
 158     s2.Printf(wxT("Number 18: %s\n"), s1.c_str());
 159     CPPUNIT_ASSERT( s2 == wxString::Format(wxT("Number 18: %s\n"), s1.c_str()) );
 160
 161     static const size_t lengths[] = { 1, 512, 1024, 1025, 2048, 4096, 4097 };
 162     for ( size_t n = 0; n < WXSIZEOF(lengths); n++ )
 163     {
 164         const size_t len = lengths[n];
 165
 166         wxString s(wxT('Z'), len);
 167         CPPUNIT_ASSERT_EQUAL( len, wxString::Format(wxT("%s"), s.c_str()).length());
 168     }
 169
 170
 171     CPPUNIT_ASSERT_EQUAL
 172     (
 173         "two one",
 174         wxString::Format(wxT("%2$s %1$s"), wxT("one"), wxT("two"))
 175     );
 176 }
 177
 178 void StringTestCase::FormatUnicode()
 179 {
 180 #if wxUSE_UNICODE
 181     const char *UNICODE_STR = "Iestat\xC4\xAB %i%i";
 182     //const char *UNICODE_STR = "Iestat\xCC\x84 %i%i";
 183
 184     wxString fmt = wxString::FromUTF8(UNICODE_STR);
 185     wxString s = wxString::Format(fmt, 1, 1);
 186     wxString expected(fmt);
 187     expected.Replace("%i", "1");
 188     CPPUNIT_ASSERT_EQUAL( expected, s );
 189 #endif // wxUSE_UNICODE
 190 }
 191
 192 void StringTestCase::Constructors()
 193 {
 194     CPPUNIT_ASSERT_EQUAL( "", wxString('Z', 0) );
 195     CPPUNIT_ASSERT_EQUAL( "Z", wxString('Z') );
 196     CPPUNIT_ASSERT_EQUAL( "ZZZZ", wxString('Z', 4) );
 197     CPPUNIT_ASSERT_EQUAL( "Hell", wxString("Hello", 4) );
 198     CPPUNIT_ASSERT_EQUAL( "Hello", wxString("Hello", 5) );
 199
 200 #if wxUSE_UNICODE
 201     CPPUNIT_ASSERT_EQUAL( L"", wxString(L'Z', 0) );
 202     CPPUNIT_ASSERT_EQUAL( L"Z", wxString(L'Z') );
 203     CPPUNIT_ASSERT_EQUAL( L"ZZZZ", wxString(L'Z', 4) );
 204     CPPUNIT_ASSERT_EQUAL( L"Hell", wxString(L"Hello", 4) );
 205     CPPUNIT_ASSERT_EQUAL( L"Hello", wxString(L"Hello", 5) );
 206 #endif // wxUSE_UNICODE
 207
 208     CPPUNIT_ASSERT_EQUAL( 0, wxString(wxString(), 17).length() );
 209
 210 #if wxUSE_UNICODE_UTF8
 211     // This string has 3 characters (<h>, <e'> and <l>), not 4 when using UTF-8
 212     // locale!
 213     if ( wxConvLibc.IsUTF8() )
 214     {
 215         wxString s3("h\xc3\xa9llo", 4);
 216         CPPUNIT_ASSERT_EQUAL( 3, s3.length() );
 217         CPPUNIT_ASSERT_EQUAL( 'l', (char)s3[2] );
 218     }
 219 #endif // wxUSE_UNICODE_UTF8
 220
 221
 222     static const char *s = "?really!";
 223     const char *start = wxStrchr(s, 'r');
 224     const char *end = wxStrchr(s, '!');
 225     CPPUNIT_ASSERT_EQUAL( "really", wxString(start, end) );
 226
 227     // test if creating string from NULL C pointer works:
 228     CPPUNIT_ASSERT_EQUAL( "", wxString((const char *)NULL) );
 229 }
 230
 231 void StringTestCase::StaticConstructors()
 232 {
 233     CPPUNIT_ASSERT_EQUAL( "", wxString::FromAscii("") );
 234     CPPUNIT_ASSERT_EQUAL( "", wxString::FromAscii("Hello", 0) );
 235     CPPUNIT_ASSERT_EQUAL( "Hell", wxString::FromAscii("Hello", 4) );
 236     CPPUNIT_ASSERT_EQUAL( "Hello", wxString::FromAscii("Hello", 5) );
 237     CPPUNIT_ASSERT_EQUAL( "Hello", wxString::FromAscii("Hello") );
 238
 239     // FIXME: this doesn't work currently but should!
 240     //CPPUNIT_ASSERT_EQUAL( 1, wxString::FromAscii("", 1).length() );
 241
 242
 243     CPPUNIT_ASSERT_EQUAL( "", wxString::FromUTF8("") );
 244     CPPUNIT_ASSERT_EQUAL( "", wxString::FromUTF8("Hello", 0) );
 245     CPPUNIT_ASSERT_EQUAL( "Hell", wxString::FromUTF8("Hello", 4) );
 246     CPPUNIT_ASSERT_EQUAL( "Hello", wxString::FromUTF8("Hello", 5) );
 247     CPPUNIT_ASSERT_EQUAL( "Hello", wxString::FromUTF8("Hello") );
 248
 249     CPPUNIT_ASSERT_EQUAL( 2, wxString::FromUTF8("h\xc3\xa9llo", 3).length() );
 250
 251
 252     //CPPUNIT_ASSERT_EQUAL( 1, wxString::FromUTF8("", 1).length() );
 253 }
 254
 255 void StringTestCase::Extraction()
 256 {
 257     wxString s(wxT("Hello, world!"));
 258
 259     CPPUNIT_ASSERT( wxStrcmp( s.c_str() , wxT("Hello, world!") ) == 0 );
 260     CPPUNIT_ASSERT( wxStrcmp( s.Left(5).c_str() , wxT("Hello") ) == 0 );
 261     CPPUNIT_ASSERT( wxStrcmp( s.Right(6).c_str() , wxT("world!") ) == 0 );
 262     CPPUNIT_ASSERT( wxStrcmp( s(3, 5).c_str() , wxT("lo, w") ) == 0 );
 263     CPPUNIT_ASSERT( wxStrcmp( s.Mid(3).c_str() , wxT("lo, world!") ) == 0 );
 264     CPPUNIT_ASSERT( wxStrcmp( s.substr(3, 5).c_str() , wxT("lo, w") ) == 0 );
 265     CPPUNIT_ASSERT( wxStrcmp( s.substr(3).c_str() , wxT("lo, world!") ) == 0 );
 266
 267 #if wxUSE_UNICODE
 268     static const char *germanUTF8 = "Oberfl\303\244che";
 269     wxString strUnicode(wxString::FromUTF8(germanUTF8));
 270
 271     CPPUNIT_ASSERT( strUnicode.Mid(0, 10) == strUnicode );
 272     CPPUNIT_ASSERT( strUnicode.Mid(7, 2) == "ch" );
 273 #endif // wxUSE_UNICODE
 274
 275     wxString rest;
 276
 277     #define TEST_STARTS_WITH(prefix, correct_rest, result)                    \
 278         CPPUNIT_ASSERT_EQUAL(result, s.StartsWith(prefix, &rest));            \
 279         if ( result )                                                         \
 280             CPPUNIT_ASSERT_EQUAL(correct_rest, rest)
 281
 282     TEST_STARTS_WITH( wxT("Hello"),           wxT(", world!"),      true  );
 283     TEST_STARTS_WITH( wxT("Hello, "),         wxT("world!"),        true  );
 284     TEST_STARTS_WITH( wxT("Hello, world!"),   wxT(""),              true  );
 285     TEST_STARTS_WITH( wxT("Hello, world!!!"), wxT(""),              false );
 286     TEST_STARTS_WITH( wxT(""),                wxT("Hello, world!"), true  );
 287     TEST_STARTS_WITH( wxT("Goodbye"),         wxT(""),              false );
 288     TEST_STARTS_WITH( wxT("Hi"),              wxT(""),              false );
 289
 290     #undef TEST_STARTS_WITH
 291
 292     rest = "Hello world";
 293     CPPUNIT_ASSERT( rest.StartsWith("Hello ", &rest) );
 294     CPPUNIT_ASSERT_EQUAL("world", rest);
 295
 296     #define TEST_ENDS_WITH(suffix, correct_rest, result)                      \
 297         CPPUNIT_ASSERT_EQUAL(result, s.EndsWith(suffix, &rest));              \
 298         if ( result )                                                         \
 299             CPPUNIT_ASSERT_EQUAL(correct_rest, rest)
 300
 301     TEST_ENDS_WITH( wxT(""),                 wxT("Hello, world!"), true  );
 302     TEST_ENDS_WITH( wxT("!"),                wxT("Hello, world"),  true  );
 303     TEST_ENDS_WITH( wxT(", world!"),         wxT("Hello"),         true  );
 304     TEST_ENDS_WITH( wxT("ello, world!"),     wxT("H"),             true  );
 305     TEST_ENDS_WITH( wxT("Hello, world!"),    wxT(""),              true  );
 306     TEST_ENDS_WITH( wxT("very long string"), wxT(""),              false );
 307     TEST_ENDS_WITH( wxT("?"),                wxT(""),              false );
 308     TEST_ENDS_WITH( wxT("Hello, world"),     wxT(""),              false );
 309     TEST_ENDS_WITH( wxT("Gello, world!"),    wxT(""),              false );
 310
 311     #undef TEST_ENDS_WITH
 312 }
 313
 314 void StringTestCase::Trim()
 315 {
 316     #define TEST_TRIM( str , dir , result )  \
 317         CPPUNIT_ASSERT( wxString(str).Trim(dir) == result )
 318
 319     TEST_TRIM( wxT("  Test  "),  true, wxT("  Test") );
 320     TEST_TRIM( wxT("    "),      true, wxT("")       );
 321     TEST_TRIM( wxT(" "),         true, wxT("")       );
 322     TEST_TRIM( wxT(""),          true, wxT("")       );
 323
 324     TEST_TRIM( wxT("  Test  "),  false, wxT("Test  ") );
 325     TEST_TRIM( wxT("    "),      false, wxT("")       );
 326     TEST_TRIM( wxT(" "),         false, wxT("")       );
 327     TEST_TRIM( wxT(""),          false, wxT("")       );
 328
 329     #undef TEST_TRIM
 330 }
 331
 332 void StringTestCase::Find()
 333 {
 334     #define TEST_FIND( str , start , result )  \
 335         CPPUNIT_ASSERT( wxString(str).find(wxT("ell"), start) == result );
 336
 337     TEST_FIND( wxT("Well, hello world"),  0, 1              );
 338     TEST_FIND( wxT("Well, hello world"),  6, 7              );
 339     TEST_FIND( wxT("Well, hello world"),  9, wxString::npos );
 340
 341     #undef TEST_FIND
 342 }
 343
 344 void StringTestCase::Replace()
 345 {
 346     #define TEST_REPLACE( original , pos , len , replacement , result ) \
 347         { \
 348             wxString s = original; \
 349             s.replace( pos , len , replacement ); \
 350             CPPUNIT_ASSERT_EQUAL( result, s ); \
 351         }
 352
 353     TEST_REPLACE( wxT("012-AWORD-XYZ"), 4, 5, wxT("BWORD"),  wxT("012-BWORD-XYZ") );
 354     TEST_REPLACE( wxT("increase"),      0, 2, wxT("de"),     wxT("decrease")      );
 355     TEST_REPLACE( wxT("wxWindow"),      8, 0, wxT("s"),      wxT("wxWindows")     );
 356     TEST_REPLACE( wxT("foobar"),        3, 0, wxT("-"),      wxT("foo-bar")       );
 357     TEST_REPLACE( wxT("barfoo"),        0, 6, wxT("foobar"), wxT("foobar")        );
 358
 359
 360     #define TEST_NULLCHARREPLACE( o , olen, pos , len , replacement , r, rlen ) \
 361         { \
 362             wxString s(o,olen); \
 363             s.replace( pos , len , replacement ); \
 364             CPPUNIT_ASSERT_EQUAL( wxString(r,rlen), s ); \
 365         }
 366
 367     TEST_NULLCHARREPLACE( wxT("null\0char"), 9, 5, 1, wxT("d"),
 368                           wxT("null\0dhar"), 9 );
 369
 370     #define TEST_WXREPLACE( o , olen, olds, news, all, r, rlen ) \
 371         { \
 372             wxString s(o,olen); \
 373             s.Replace( olds, news, all ); \
 374             CPPUNIT_ASSERT_EQUAL( wxString(r,rlen), s ); \
 375         }
 376
 377     TEST_WXREPLACE( wxT("null\0char"), 9, wxT("c"), wxT("de"), true,
 378                           wxT("null\0dehar"), 10 );
 379
 380     TEST_WXREPLACE( wxT("null\0dehar"), 10, wxT("de"), wxT("c"), true,
 381                           wxT("null\0char"), 9 );
 382
 383     TEST_WXREPLACE( "life", 4, "f", "", false, "lie", 3 );
 384     TEST_WXREPLACE( "life", 4, "f", "", true, "lie", 3 );
 385     TEST_WXREPLACE( "life", 4, "fe", "ve", true, "live", 4 );
 386     TEST_WXREPLACE( "xx", 2, "x", "yy", true, "yyyy", 4 );
 387     TEST_WXREPLACE( "xxx", 3, "xx", "z", true, "zx", 2 );
 388
 389     #undef TEST_WXREPLACE
 390     #undef TEST_NULLCHARREPLACE
 391     #undef TEST_REPLACE
 392 }
 393
 394 void StringTestCase::Match()
 395 {
 396     #define TEST_MATCH( s1 , s2 , result ) \
 397         CPPUNIT_ASSERT( wxString(s1).Matches(s2) == result )
 398
 399     TEST_MATCH( "foobar",       "foo*",        true  );
 400     TEST_MATCH( "foobar",       "*oo*",        true  );
 401     TEST_MATCH( "foobar",       "*bar",        true  );
 402     TEST_MATCH( "foobar",       "??????",      true  );
 403     TEST_MATCH( "foobar",       "f??b*",       true  );
 404     TEST_MATCH( "foobar",       "f?b*",        false );
 405     TEST_MATCH( "foobar",       "*goo*",       false );
 406     TEST_MATCH( "foobar",       "*foo",        false );
 407     TEST_MATCH( "foobarfoo",    "*foo",        true  );
 408     TEST_MATCH( "",             "*",           true  );
 409     TEST_MATCH( "",             "?",           false );
 410
 411     #undef TEST_MATCH
 412 }
 413
 414
 415 void StringTestCase::CaseChanges()
 416 {
 417     wxString s1(wxT("Hello!"));
 418     wxString s1u(s1);
 419     wxString s1l(s1);
 420     s1u.MakeUpper();
 421     s1l.MakeLower();
 422
 423     CPPUNIT_ASSERT_EQUAL( wxT("HELLO!"), s1u );
 424     CPPUNIT_ASSERT_EQUAL( wxT("hello!"), s1l );
 425
 426     wxString s2u, s2l;
 427     s2u.MakeUpper();
 428     s2l.MakeLower();
 429
 430     CPPUNIT_ASSERT_EQUAL( "", s2u );
 431     CPPUNIT_ASSERT_EQUAL( "", s2l );
 432
 433
 434     wxString s3("good bye");
 435     CPPUNIT_ASSERT_EQUAL( "Good bye", s3.Capitalize() );
 436     s3.MakeCapitalized();
 437     CPPUNIT_ASSERT_EQUAL( "Good bye", s3 );
 438
 439     CPPUNIT_ASSERT_EQUAL( "Abc", wxString("ABC").Capitalize() );
 440
 441     CPPUNIT_ASSERT_EQUAL( "", wxString().Capitalize() );
 442 }
 443
 444 void StringTestCase::Compare()
 445 {
 446     wxString s1 = wxT("AHH");
 447     wxString eq = wxT("AHH");
 448     wxString neq1 = wxT("HAH");
 449     wxString neq2 = wxT("AH");
 450     wxString neq3 = wxT("AHHH");
 451     wxString neq4 = wxT("AhH");
 452
 453     CPPUNIT_ASSERT( s1 == eq );
 454     CPPUNIT_ASSERT( s1 != neq1 );
 455     CPPUNIT_ASSERT( s1 != neq2 );
 456     CPPUNIT_ASSERT( s1 != neq3 );
 457     CPPUNIT_ASSERT( s1 != neq4 );
 458
 459     CPPUNIT_ASSERT( s1 == wxT("AHH") );
 460     CPPUNIT_ASSERT( s1 != wxT("no") );
 461     CPPUNIT_ASSERT( s1 < wxT("AZ") );
 462     CPPUNIT_ASSERT( s1 <= wxT("AZ") );
 463     CPPUNIT_ASSERT( s1 <= wxT("AHH") );
 464     CPPUNIT_ASSERT( s1 > wxT("AA") );
 465     CPPUNIT_ASSERT( s1 >= wxT("AA") );
 466     CPPUNIT_ASSERT( s1 >= wxT("AHH") );
 467
 468     // test comparison with C strings in Unicode build (must work in ANSI as
 469     // well, of course):
 470     CPPUNIT_ASSERT( s1 == "AHH" );
 471     CPPUNIT_ASSERT( s1 != "no" );
 472     CPPUNIT_ASSERT( s1 < "AZ" );
 473     CPPUNIT_ASSERT( s1 <= "AZ" );
 474     CPPUNIT_ASSERT( s1 <= "AHH" );
 475     CPPUNIT_ASSERT( s1 > "AA" );
 476     CPPUNIT_ASSERT( s1 >= "AA" );
 477     CPPUNIT_ASSERT( s1 >= "AHH" );
 478
 479 //    wxString _s1 = wxT("A\0HH");
 480 //    wxString _eq = wxT("A\0HH");
 481 //    wxString _neq1 = wxT("H\0AH");
 482 //    wxString _neq2 = wxT("A\0H");
 483 //    wxString _neq3 = wxT("A\0HHH");
 484 //    wxString _neq4 = wxT("A\0hH");
 485     s1.insert(1,1,'\0');
 486     eq.insert(1,1,'\0');
 487     neq1.insert(1,1,'\0');
 488     neq2.insert(1,1,'\0');
 489     neq3.insert(1,1,'\0');
 490     neq4.insert(1,1,'\0');
 491
 492     CPPUNIT_ASSERT( s1 == eq );
 493     CPPUNIT_ASSERT( s1 != neq1 );
 494     CPPUNIT_ASSERT( s1 != neq2 );
 495     CPPUNIT_ASSERT( s1 != neq3 );
 496     CPPUNIT_ASSERT( s1 != neq4 );
 497
 498     CPPUNIT_ASSERT( wxString("\n").Cmp(" ") < 0 );
 499     CPPUNIT_ASSERT( wxString("'").Cmp("!") > 0 );
 500     CPPUNIT_ASSERT( wxString("!").Cmp("z") < 0 );
 501 }
 502
 503 void StringTestCase::CompareNoCase()
 504 {
 505     wxString s1 = wxT("AHH");
 506     wxString eq = wxT("AHH");
 507     wxString eq2 = wxT("AhH");
 508     wxString eq3 = wxT("ahh");
 509     wxString neq = wxT("HAH");
 510     wxString neq2 = wxT("AH");
 511     wxString neq3 = wxT("AHHH");
 512
 513     #define CPPUNIT_CNCEQ_ASSERT(s1, s2) CPPUNIT_ASSERT( s1.CmpNoCase(s2) == 0)
 514     #define CPPUNIT_CNCNEQ_ASSERT(s1, s2) CPPUNIT_ASSERT( s1.CmpNoCase(s2) != 0)
 515
 516     CPPUNIT_CNCEQ_ASSERT( s1, eq );
 517     CPPUNIT_CNCEQ_ASSERT( s1, eq2 );
 518     CPPUNIT_CNCEQ_ASSERT( s1, eq3 );
 519
 520     CPPUNIT_CNCNEQ_ASSERT( s1, neq );
 521     CPPUNIT_CNCNEQ_ASSERT( s1, neq2 );
 522     CPPUNIT_CNCNEQ_ASSERT( s1, neq3 );
 523
 524
 525 //    wxString _s1 = wxT("A\0HH");
 526 //    wxString _eq = wxT("A\0HH");
 527 //    wxString _eq2 = wxT("A\0hH");
 528 //    wxString _eq3 = wxT("a\0hh");
 529 //    wxString _neq = wxT("H\0AH");
 530 //    wxString _neq2 = wxT("A\0H");
 531 //    wxString _neq3 = wxT("A\0HHH");
 532
 533     s1.insert(1,1,'\0');
 534     eq.insert(1,1,'\0');
 535     eq2.insert(1,1,'\0');
 536     eq3.insert(1,1,'\0');
 537     neq.insert(1,1,'\0');
 538     neq2.insert(1,1,'\0');
 539     neq3.insert(1,1,'\0');
 540
 541     CPPUNIT_CNCEQ_ASSERT( s1, eq );
 542     CPPUNIT_CNCEQ_ASSERT( s1, eq2 );
 543     CPPUNIT_CNCEQ_ASSERT( s1, eq3 );
 544
 545     CPPUNIT_CNCNEQ_ASSERT( s1, neq );
 546     CPPUNIT_CNCNEQ_ASSERT( s1, neq2 );
 547     CPPUNIT_CNCNEQ_ASSERT( s1, neq3 );
 548
 549     CPPUNIT_ASSERT( wxString("\n").CmpNoCase(" ") < 0 );
 550     CPPUNIT_ASSERT( wxString("'").CmpNoCase("!") > 0);
 551     CPPUNIT_ASSERT( wxString("!").Cmp("Z") < 0 );
 552 }
 553
 554 void StringTestCase::Contains()
 555 {
 556     static const struct ContainsData
 557     {
 558         const wxChar *hay;
 559         const wxChar *needle;
 560         bool contains;
 561     } containsData[] =
 562     {
 563         { wxT(""),       wxT(""),         true  },
 564         { wxT(""),       wxT("foo"),      false },
 565         { wxT("foo"),    wxT(""),         true  },
 566         { wxT("foo"),    wxT("f"),        true  },
 567         { wxT("foo"),    wxT("o"),        true  },
 568         { wxT("foo"),    wxT("oo"),       true  },
 569         { wxT("foo"),    wxT("ooo"),      false },
 570         { wxT("foo"),    wxT("oooo"),     false },
 571         { wxT("foo"),    wxT("fooo"),     false },
 572     };
 573
 574     for ( size_t n = 0; n < WXSIZEOF(containsData); n++ )
 575     {
 576         const ContainsData& cd = containsData[n];
 577         CPPUNIT_ASSERT_EQUAL( cd.contains, wxString(cd.hay).Contains(cd.needle) );
 578     }
 579 }
 580
 581 // flags used in ToLongData.flags
 582 enum
 583 {
 584     Number_Ok       = 0,
 585     Number_Invalid  = 1,
 586     Number_Unsigned = 2,    // if not specified, works for signed conversion
 587     Number_Signed   = 4,    // if not specified, works for unsigned
 588     Number_LongLong = 8,    // only for long long tests
 589     Number_Long     = 16    // only for long tests
 590 };
 591
 592 static const struct ToLongData
 593 {
 594     const wxChar *str;
 595 #ifdef wxLongLong_t
 596     wxLongLong_t value;
 597 #else
 598     long value;
 599 #endif // wxLongLong_t
 600     int flags;
 601     int base;
 602
 603     long LValue() const { return value; }
 604     unsigned long ULValue() const { return value; }
 605 #ifdef wxLongLong_t
 606     wxLongLong_t LLValue() const { return value; }
 607     wxULongLong_t ULLValue() const { return (wxULongLong_t)value; }
 608 #endif // wxLongLong_t
 609
 610     bool IsOk() const { return !(flags & Number_Invalid); }
 611 } longData[] =
 612 {
 613     { wxT("1"), 1, Number_Ok },
 614     { wxT("0"), 0, Number_Ok },
 615     { wxT("a"), 0, Number_Invalid },
 616     { wxT("12345"), 12345, Number_Ok },
 617     { wxT("--1"), 0, Number_Invalid },
 618
 619     { wxT("-1"), -1, Number_Signed | Number_Long },
 620     // this is surprising but consistent with strtoul() behaviour
 621     { wxT("-1"), ULONG_MAX, Number_Unsigned | Number_Long },
 622
 623     // this must overflow, even with 64 bit long
 624     { wxT("922337203685477580711"), 0, Number_Invalid },
 625
 626 #ifdef wxLongLong_t
 627     { wxT("2147483648"), wxLL(2147483648), Number_LongLong },
 628     { wxT("-2147483648"), wxLL(-2147483648), Number_LongLong | Number_Signed },
 629     { wxT("9223372036854775808"), wxULL(9223372036854775808), Number_LongLong |
 630                                                              Number_Unsigned },
 631 #endif // wxLongLong_t
 632
 633     // Base tests.
 634     { wxT("010"),  10, Number_Ok, 10 },
 635     { wxT("010"),   8, Number_Ok,  0 },
 636     { wxT("010"),   8, Number_Ok,  8 },
 637     { wxT("010"),  16, Number_Ok, 16 },
 638
 639     { wxT("0010"), 10, Number_Ok, 10 },
 640     { wxT("0010"),  8, Number_Ok,  0 },
 641     { wxT("0010"),  8, Number_Ok,  8 },
 642     { wxT("0010"), 16, Number_Ok, 16 },
 643
 644     { wxT("0x11"),  0, Number_Invalid, 10 },
 645     { wxT("0x11"), 17, Number_Ok,       0 },
 646     { wxT("0x11"),  0, Number_Invalid,  8 },
 647     { wxT("0x11"), 17, Number_Ok,      16 },
 648 };
 649
 650 void StringTestCase::ToLong()
 651 {
 652     long l;
 653     for ( size_t n = 0; n < WXSIZEOF(longData); n++ )
 654     {
 655         const ToLongData& ld = longData[n];
 656
 657         if ( ld.flags & (Number_LongLong | Number_Unsigned) )
 658             continue;
 659
 660         // NOTE: unless you're using some exotic locale, ToCLong and ToLong
 661         //       should behave the same for our test data set:
 662
 663         CPPUNIT_ASSERT_EQUAL( ld.IsOk(),
 664                               wxString(ld.str).ToCLong(&l, ld.base) );
 665         if ( ld.IsOk() )
 666             CPPUNIT_ASSERT_EQUAL( ld.LValue(), l );
 667
 668         CPPUNIT_ASSERT_EQUAL( ld.IsOk(),
 669                               wxString(ld.str).ToLong(&l, ld.base) );
 670         if ( ld.IsOk() )
 671             CPPUNIT_ASSERT_EQUAL( ld.LValue(), l );
 672     }
 673
 674     // special case: check that the output is not modified if the parsing
 675     // failed completely
 676     l = 17;
 677     CPPUNIT_ASSERT( !wxString("foo").ToLong(&l) );
 678     CPPUNIT_ASSERT_EQUAL( 17, l );
 679
 680     // also check that it is modified if we did parse something successfully in
 681     // the beginning of the string
 682     CPPUNIT_ASSERT( !wxString("9 cats").ToLong(&l) );
 683     CPPUNIT_ASSERT_EQUAL( 9, l );
 684 }
 685
 686 void StringTestCase::ToULong()
 687 {
 688     unsigned long ul;
 689     for ( size_t n = 0; n < WXSIZEOF(longData); n++ )
 690     {
 691         const ToLongData& ld = longData[n];
 692
 693         if ( ld.flags & (Number_LongLong | Number_Signed) )
 694             continue;
 695
 696         // NOTE: unless you're using some exotic locale, ToCLong and ToLong
 697         //       should behave the same for our test data set:
 698
 699         CPPUNIT_ASSERT_EQUAL( ld.IsOk(),
 700                               wxString(ld.str).ToCULong(&ul, ld.base) );
 701         if ( ld.IsOk() )
 702             CPPUNIT_ASSERT_EQUAL( ld.ULValue(), ul );
 703
 704         CPPUNIT_ASSERT_EQUAL( ld.IsOk(),
 705                               wxString(ld.str).ToULong(&ul, ld.base) );
 706         if ( ld.IsOk() )
 707             CPPUNIT_ASSERT_EQUAL( ld.ULValue(), ul );
 708     }
 709 }
 710
 711 #ifdef wxLongLong_t
 712
 713 void StringTestCase::ToLongLong()
 714 {
 715     wxLongLong_t l;
 716     for ( size_t n = 0; n < WXSIZEOF(longData); n++ )
 717     {
 718         const ToLongData& ld = longData[n];
 719
 720         if ( ld.flags & (Number_Long | Number_Unsigned) )
 721             continue;
 722
 723         CPPUNIT_ASSERT_EQUAL( ld.IsOk(),
 724                               wxString(ld.str).ToLongLong(&l, ld.base) );
 725         if ( ld.IsOk() )
 726             CPPUNIT_ASSERT_EQUAL( ld.LLValue(), l );
 727     }
 728 }
 729
 730 void StringTestCase::ToULongLong()
 731 {
 732     wxULongLong_t ul;
 733     for ( size_t n = 0; n < WXSIZEOF(longData); n++ )
 734     {
 735         const ToLongData& ld = longData[n];
 736
 737         if ( ld.flags & (Number_Long | Number_Signed) )
 738             continue;
 739
 740         CPPUNIT_ASSERT_EQUAL( ld.IsOk(),
 741                               wxString(ld.str).ToULongLong(&ul, ld.base) );
 742         if ( ld.IsOk() )
 743             CPPUNIT_ASSERT_EQUAL( ld.ULLValue(), ul );
 744     }
 745 }
 746
 747 #endif // wxLongLong_t
 748
 749 void StringTestCase::ToDouble()
 750 {
 751     double d;
 752     static const struct ToDoubleData
 753     {
 754         const wxChar *str;
 755         double value;
 756         bool ok;
 757     } doubleData[] =
 758     {
 759         { wxT("1"), 1, true },
 760         { wxT("1.23"), 1.23, true },
 761         { wxT(".1"), .1, true },
 762         { wxT("1."), 1, true },
 763         { wxT("1.."), 0, false },
 764         { wxT("0"), 0, true },
 765         { wxT("a"), 0, false },
 766         { wxT("12345"), 12345, true },
 767         { wxT("-1"), -1, true },
 768         { wxT("--1"), 0, false },
 769         { wxT("-3E-5"), -3E-5, true },
 770         { wxT("-3E-abcde5"), 0, false },
 771     };
 772
 773     // test ToCDouble() first:
 774
 775     size_t n;
 776     for ( n = 0; n < WXSIZEOF(doubleData); n++ )
 777     {
 778         const ToDoubleData& ld = doubleData[n];
 779         CPPUNIT_ASSERT_EQUAL( ld.ok, wxString(ld.str).ToCDouble(&d) );
 780         if ( ld.ok )
 781             CPPUNIT_ASSERT_EQUAL( ld.value, d );
 782     }
 783
 784
 785     // test ToDouble() now:
 786     // NOTE: for the test to be reliable, we need to set the locale explicitly
 787     //       so that we know the decimal point character to use
 788
 789     if (!wxLocale::IsAvailable(wxLANGUAGE_FRENCH))
 790         return;     // you should have french support installed to continue this test!
 791
 792     wxLocale locale;
 793
 794     // don't load default catalog, it may be unavailable:
 795     CPPUNIT_ASSERT( locale.Init(wxLANGUAGE_FRENCH, wxLOCALE_DONT_LOAD_DEFAULT) );
 796
 797     static const struct ToDoubleData doubleData2[] =
 798     {
 799         { wxT("1"), 1, true },
 800         { wxT("1,23"), 1.23, true },
 801         { wxT(",1"), .1, true },
 802         { wxT("1,"), 1, true },
 803         { wxT("1,,"), 0, false },
 804         { wxT("0"), 0, true },
 805         { wxT("a"), 0, false },
 806         { wxT("12345"), 12345, true },
 807         { wxT("-1"), -1, true },
 808         { wxT("--1"), 0, false },
 809         { wxT("-3E-5"), -3E-5, true },
 810         { wxT("-3E-abcde5"), 0, false },
 811     };
 812
 813     for ( n = 0; n < WXSIZEOF(doubleData2); n++ )
 814     {
 815         const ToDoubleData& ld = doubleData2[n];
 816         CPPUNIT_ASSERT_EQUAL( ld.ok, wxString(ld.str).ToDouble(&d) );
 817         if ( ld.ok )
 818             CPPUNIT_ASSERT_EQUAL( ld.value, d );
 819     }
 820 }
 821
 822 void StringTestCase::FromDouble()
 823 {
 824     static const struct FromDoubleTestData
 825     {
 826         double value;
 827         int prec;
 828         const char *str;
 829     } testData[] =
 830     {
 831         { 1.23,             -1, "1.23" },
 832         // NB: there are no standards about the minimum exponent width
 833         //     and newer MSVC versions use 3 digits as minimum exponent
 834         //     width while GNU libc uses 2 digits as minimum width...
 835 #ifdef wxUSING_VC_CRT_IO
 836         { -3e-10,           -1, "-3e-010" },
 837 #else
 838         { -3e-10,           -1, "-3e-10" },
 839 #endif
 840         { -0.45678,         -1, "-0.45678" },
 841         { 1.2345678,         0, "1" },
 842         { 1.2345678,         1, "1.2" },
 843         { 1.2345678,         2, "1.23" },
 844         { 1.2345678,         3, "1.235" },
 845     };
 846
 847     for ( unsigned n = 0; n < WXSIZEOF(testData); n++ )
 848     {
 849         const FromDoubleTestData& td = testData[n];
 850         CPPUNIT_ASSERT_EQUAL( td.str, wxString::FromCDouble(td.value, td.prec) );
 851     }
 852
 853     if ( !wxLocale::IsAvailable(wxLANGUAGE_FRENCH) )
 854         return;
 855
 856     wxLocale locale;
 857     CPPUNIT_ASSERT( locale.Init(wxLANGUAGE_FRENCH, wxLOCALE_DONT_LOAD_DEFAULT) );
 858
 859     for ( unsigned m = 0; m < WXSIZEOF(testData); m++ )
 860     {
 861         const FromDoubleTestData& td = testData[m];
 862
 863         wxString str(td.str);
 864         str.Replace(".", ",");
 865         CPPUNIT_ASSERT_EQUAL( str, wxString::FromDouble(td.value, td.prec) );
 866     }
 867 }
 868
 869 void StringTestCase::StringBuf()
 870 {
 871     // check that buffer can be used to write into the string
 872     wxString s;
 873     wxStrcpy(wxStringBuffer(s, 10), wxT("foo"));
 874
 875     CPPUNIT_ASSERT_EQUAL(3, s.length());
 876     CPPUNIT_ASSERT(wxT('f') == s[0u]);
 877     CPPUNIT_ASSERT(wxT('o') == s[1]);
 878     CPPUNIT_ASSERT(wxT('o') == s[2]);
 879
 880     {
 881         // also check that the buffer initially contains the original string
 882         // contents
 883         wxStringBuffer buf(s, 10);
 884         CPPUNIT_ASSERT_EQUAL( wxT('f'), buf[0] );
 885         CPPUNIT_ASSERT_EQUAL( wxT('o'), buf[1] );
 886         CPPUNIT_ASSERT_EQUAL( wxT('o'), buf[2] );
 887         CPPUNIT_ASSERT_EQUAL( wxT('\0'), buf[3] );
 888     }
 889
 890     {
 891         wxStringBufferLength buf(s, 10);
 892         CPPUNIT_ASSERT_EQUAL( wxT('f'), buf[0] );
 893         CPPUNIT_ASSERT_EQUAL( wxT('o'), buf[1] );
 894         CPPUNIT_ASSERT_EQUAL( wxT('o'), buf[2] );
 895         CPPUNIT_ASSERT_EQUAL( wxT('\0'), buf[3] );
 896
 897         // and check that it can be used to write only the specified number of
 898         // characters to the string
 899         wxStrcpy(buf, wxT("barrbaz"));
 900         buf.SetLength(4);
 901     }
 902
 903     CPPUNIT_ASSERT_EQUAL(4, s.length());
 904     CPPUNIT_ASSERT(wxT('b') == s[0u]);
 905     CPPUNIT_ASSERT(wxT('a') == s[1]);
 906     CPPUNIT_ASSERT(wxT('r') == s[2]);
 907     CPPUNIT_ASSERT(wxT('r') == s[3]);
 908
 909     // check that creating buffer of length smaller than string works, i.e. at
 910     // least doesn't crash (it would if we naively copied the entire original
 911     // string contents in the buffer)
 912     *wxStringBuffer(s, 1) = '!';
 913 }
 914
 915 void StringTestCase::UTF8Buf()
 916 {
 917 #if wxUSE_UNICODE
 918     // "czech" in Czech ("cestina"):
 919     static const char *textUTF8 = "\304\215e\305\241tina";
 920     static const wchar_t textUTF16[] = {0x10D, 0x65, 0x161, 0x74, 0x69, 0x6E, 0x61, 0};
 921
 922     wxString s;
 923     wxStrcpy(wxUTF8StringBuffer(s, 9), textUTF8);
 924     CPPUNIT_ASSERT(s == textUTF16);
 925
 926     {
 927         wxUTF8StringBufferLength buf(s, 20);
 928         wxStrcpy(buf, textUTF8);
 929         buf.SetLength(5);
 930     }
 931     CPPUNIT_ASSERT(s == wxString(textUTF16, 0, 3));
 932 #endif // wxUSE_UNICODE
 933 }
 934
 935
 936
 937 void StringTestCase::CStrDataTernaryOperator()
 938 {
 939     DoCStrDataTernaryOperator(true);
 940     DoCStrDataTernaryOperator(false);
 941 }
 942
 943 template<typename T> bool CheckStr(const wxString& expected, T s)
 944 {
 945     return expected == wxString(s);
 946 }
 947
 948 void StringTestCase::DoCStrDataTernaryOperator(bool cond)
 949 {
 950     // test compilation of wxCStrData when used with operator?: (the asserts
 951     // are not very important, we're testing if the code compiles at all):
 952
 953     wxString s("foo");
 954
 955     const wchar_t *wcStr = L"foo";
 956     CPPUNIT_ASSERT( CheckStr(s, (cond ? s.c_str() : wcStr)) );
 957     CPPUNIT_ASSERT( CheckStr(s, (cond ? s.c_str() : L"foo")) );
 958     CPPUNIT_ASSERT( CheckStr(s, (cond ? wcStr : s.c_str())) );
 959     CPPUNIT_ASSERT( CheckStr(s, (cond ? L"foo" : s.c_str())) );
 960
 961     const char *mbStr = "foo";
 962     CPPUNIT_ASSERT( CheckStr(s, (cond ? s.c_str() : mbStr)) );
 963     CPPUNIT_ASSERT( CheckStr(s, (cond ? s.c_str() : "foo")) );
 964     CPPUNIT_ASSERT( CheckStr(s, (cond ? mbStr : s.c_str())) );
 965     CPPUNIT_ASSERT( CheckStr(s, (cond ? "foo" : s.c_str())) );
 966
 967     wxString empty("");
 968     CPPUNIT_ASSERT( CheckStr(empty, (cond ? empty.c_str() : wxEmptyString)) );
 969     CPPUNIT_ASSERT( CheckStr(empty, (cond ? wxEmptyString : empty.c_str())) );
 970 }
 971
 972 void StringTestCase::CStrDataOperators()
 973 {
 974     wxString s("hello");
 975
 976     CPPUNIT_ASSERT( s.c_str()[0] == 'h' );
 977     CPPUNIT_ASSERT( s.c_str()[1] == 'e' );
 978
 979     // IMPORTANT: at least with the CRT coming with MSVC++ 2008 trying to access
 980     //            the final character results in an assert failure (with debug CRT)
 981     //CPPUNIT_ASSERT( s.c_str()[5] == '\0' );
 982
 983     CPPUNIT_ASSERT( *s.c_str() == 'h' );
 984     CPPUNIT_ASSERT( *(s.c_str() + 2) == 'l' );
 985     //CPPUNIT_ASSERT( *(s.c_str() + 5) == '\0' );
 986 }
 987
 988 bool CheckStrChar(const wxString& expected, char *s)
 989     { return CheckStr(expected, s); }
 990 bool CheckStrWChar(const wxString& expected, wchar_t *s)
 991     { return CheckStr(expected, s); }
 992 bool CheckStrConstChar(const wxString& expected, const char *s)
 993     { return CheckStr(expected, s); }
 994 bool CheckStrConstWChar(const wxString& expected, const wchar_t *s)
 995     { return CheckStr(expected, s); }
 996
 997 void StringTestCase::CStrDataImplicitConversion()
 998 {
 999     wxString s("foo");
1000
1001     CPPUNIT_ASSERT( CheckStrConstWChar(s, s.c_str()) );
1002     CPPUNIT_ASSERT( CheckStrConstChar(s, s.c_str()) );
1003
1004     // implicit conversion of wxString is not available in STL build
1005 #if !wxUSE_STL
1006     CPPUNIT_ASSERT( CheckStrConstWChar(s, s) );
1007     CPPUNIT_ASSERT( CheckStrConstChar(s, s) );
1008 #endif
1009 }
1010
1011 void StringTestCase::ExplicitConversion()
1012 {
1013     wxString s("foo");
1014
1015     CPPUNIT_ASSERT( CheckStr(s, s.mb_str()) );
1016     CPPUNIT_ASSERT( CheckStrConstChar(s, s.mb_str()) );
1017     CPPUNIT_ASSERT( CheckStrChar(s, s.char_str()) );
1018
1019     CPPUNIT_ASSERT( CheckStr(s, s.wc_str()) );
1020     CPPUNIT_ASSERT( CheckStrConstWChar(s, s.wc_str()) );
1021     CPPUNIT_ASSERT( CheckStrWChar(s, s.wchar_str()) );
1022 }
1023
1024 void StringTestCase::IndexedAccess()
1025 {
1026     wxString s("bar");
1027     CPPUNIT_ASSERT_EQUAL( 'r', (char)s[2] );
1028
1029     // this tests for a possible bug in UTF-8 based wxString implementation:
1030     // the 3rd character of the underlying byte string is going to change, but
1031     // the 3rd character of wxString should remain the same
1032     s[0] = L'\xe9';
1033     CPPUNIT_ASSERT_EQUAL( 'r', (char)s[2] );
1034 }
1035
1036 void StringTestCase::BeforeAndAfter()
1037 {
1038     // Construct a string with 2 equal signs in it by concatenating its three
1039     // parts: before the first "=", in between the two "="s and after the last
1040     // one. This allows to avoid duplicating the string contents (which has to
1041     // be different for Unicode and ANSI builds) in the tests below.
1042 #if wxUSE_UNICODE
1043     #define FIRST_PART L"letter"
1044     #define MIDDLE_PART L"\xe9;\xe7a"
1045     #define LAST_PART L"l\xe0"
1046 #else // !wxUSE_UNICODE
1047     #define FIRST_PART "letter"
1048     #define MIDDLE_PART "e;ca"
1049     #define LAST_PART "la"
1050 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
1051
1052     const wxString s(FIRST_PART wxT("=") MIDDLE_PART wxT("=") LAST_PART);
1053
1054     wxString r;
1055
1056     CPPUNIT_ASSERT_EQUAL( FIRST_PART, s.BeforeFirst('=', &r) );
1057     CPPUNIT_ASSERT_EQUAL( MIDDLE_PART wxT("=") LAST_PART, r );
1058
1059     CPPUNIT_ASSERT_EQUAL( s, s.BeforeFirst('!', &r) );
1060     CPPUNIT_ASSERT_EQUAL( "", r );
1061
1062
1063     CPPUNIT_ASSERT_EQUAL( FIRST_PART wxT("=") MIDDLE_PART, s.BeforeLast('=', &r) );
1064     CPPUNIT_ASSERT_EQUAL( LAST_PART, r );
1065
1066     CPPUNIT_ASSERT_EQUAL( "", s.BeforeLast('!', &r) );
1067     CPPUNIT_ASSERT_EQUAL( s, r );
1068
1069
1070     CPPUNIT_ASSERT_EQUAL( MIDDLE_PART wxT("=") LAST_PART, s.AfterFirst('=') );
1071     CPPUNIT_ASSERT_EQUAL( "", s.AfterFirst('!') );
1072
1073
1074     CPPUNIT_ASSERT_EQUAL( LAST_PART, s.AfterLast('=') );
1075     CPPUNIT_ASSERT_EQUAL( s, s.AfterLast('!') );
1076
1077     #undef LAST_PART
1078     #undef MIDDLE_PART
1079     #undef FIRST_PART
1080 }
1081
1082 void StringTestCase::ScopedBuffers()
1083 {
1084     // wxString relies on efficient buffers, verify they work as they should
1085
1086     const char *literal = "Hello World!";
1087
1088     // non-owned buffer points to the string passed to it
1089     wxScopedCharBuffer sbuf = wxScopedCharBuffer::CreateNonOwned(literal);
1090     CPPUNIT_ASSERT( sbuf.data() == literal );
1091
1092     // a copy of scoped non-owned buffer still points to the same string
1093     wxScopedCharBuffer sbuf2(sbuf);
1094     CPPUNIT_ASSERT( sbuf.data() == sbuf2.data() );
1095
1096     // but assigning it to wxCharBuffer makes a full copy
1097     wxCharBuffer buf(sbuf);
1098     CPPUNIT_ASSERT( buf.data() != literal );
1099     CPPUNIT_ASSERT_EQUAL( literal, buf.data() );
1100
1101     wxCharBuffer buf2 = sbuf;
1102     CPPUNIT_ASSERT( buf2.data() != literal );
1103     CPPUNIT_ASSERT_EQUAL( literal, buf.data() );
1104
1105     // Check that extending the buffer keeps it NUL-terminated.
1106     size_t len = 10;
1107
1108     wxCharBuffer buf3(len);
1109     CPPUNIT_ASSERT_EQUAL('\0', buf3.data()[len]);
1110
1111     wxCharBuffer buf4;
1112     buf4.extend(len);
1113     CPPUNIT_ASSERT_EQUAL('\0', buf4.data()[len]);
1114
1115     wxCharBuffer buf5(5);
1116     buf5.extend(len);
1117     CPPUNIT_ASSERT_EQUAL('\0', buf5.data()[len]);
1118 }