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