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( Extraction );
  40         CPPUNIT_TEST( Trim );
  41         CPPUNIT_TEST( Find );
  42         CPPUNIT_TEST( Replace );
  43         CPPUNIT_TEST( Match );
  44         CPPUNIT_TEST( CaseChanges );
  45         CPPUNIT_TEST( Compare );
  46         CPPUNIT_TEST( CompareNoCase );
  47         CPPUNIT_TEST( Contains );
  48         CPPUNIT_TEST( ToLong );
  49         CPPUNIT_TEST( ToULong );
  50         CPPUNIT_TEST( ToDouble );
  51     CPPUNIT_TEST_SUITE_END();
  52
  53     void String();
  54     void PChar();
  55     void Format();
  56     void Constructors();
  57     void Extraction();
  58     void Trim();
  59     void Find();
  60     void Replace();
  61     void Match();
  62     void CaseChanges();
  63     void Compare();
  64     void CompareNoCase();
  65     void Contains();
  66     void ToLong();
  67     void ToULong();
  68     void ToDouble();
  69
  70     DECLARE_NO_COPY_CLASS(StringTestCase)
  71 };
  72
  73 // register in the unnamed registry so that these tests are run by default
  74 CPPUNIT_TEST_SUITE_REGISTRATION( StringTestCase );
  75
  76 // also include in it's own registry so that these tests can be run alone
  77 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( StringTestCase, "StringTestCase" );
  78
  79 StringTestCase::StringTestCase()
  80 {
  81 }
  82
  83 void StringTestCase::String()
  84 {
  85     wxString a, b, c;
  86
  87     a.reserve (128);
  88     b.reserve (128);
  89     c.reserve (128);
  90
  91     for (int i = 0; i < 2; ++i)
  92     {
  93         a = _T("Hello");
  94         b = _T(" world");
  95         c = _T("! How'ya doin'?");
  96         a += b;
  97         a += c;
  98         c = _T("Hello world! What's up?");
  99         CPPUNIT_ASSERT( c != a );
 100     }
 101 }
 102
 103 void StringTestCase::PChar()
 104 {
 105     wxChar a [128];
 106     wxChar b [128];
 107     wxChar c [128];
 108
 109     for (int i = 0; i < 2; ++i)
 110     {
 111         wxStrcpy (a, _T("Hello"));
 112         wxStrcpy (b, _T(" world"));
 113         wxStrcpy (c, _T("! How'ya doin'?"));
 114         wxStrcat (a, b);
 115         wxStrcat (a, c);
 116         wxStrcpy (c, _T("Hello world! What's up?"));
 117         CPPUNIT_ASSERT( wxStrcmp (c, a) != 0 );
 118     }
 119 }
 120
 121 void StringTestCase::Format()
 122 {
 123     wxString s1,s2;
 124     s1.Printf(_T("%03d"), 18);
 125     CPPUNIT_ASSERT( s1 == wxString::Format(_T("%03d"), 18) );
 126     s2.Printf(_T("Number 18: %s\n"), s1.c_str());
 127     CPPUNIT_ASSERT( s2 == wxString::Format(_T("Number 18: %s\n"), s1.c_str()) );
 128
 129     static const size_t lengths[] = { 1, 512, 1024, 1025, 2048, 4096, 4097 };
 130     for ( size_t n = 0; n < WXSIZEOF(lengths); n++ )
 131     {
 132         const size_t len = lengths[n];
 133
 134         wxString s(_T('Z'), len);
 135         CPPUNIT_ASSERT_EQUAL( len, wxString::Format(_T("%s"), s.c_str()).length());
 136     }
 137 }
 138
 139 void StringTestCase::Constructors()
 140 {
 141     #define TEST_CTOR(args, res)                                               \
 142         {                                                                      \
 143             wxString s args ;                                                  \
 144             CPPUNIT_ASSERT( s == res );                                        \
 145         }
 146
 147     TEST_CTOR((_T('Z'), 4), _T("ZZZZ"));
 148     TEST_CTOR((_T("Hello"), 4), _T("Hell"));
 149     TEST_CTOR((_T("Hello"), 5), _T("Hello"));
 150
 151     static const wxChar *s = _T("?really!");
 152     const wxChar *start = wxStrchr(s, _T('r'));
 153     const wxChar *end = wxStrchr(s, _T('!'));
 154     TEST_CTOR((start, end), _T("really"));
 155 }
 156
 157
 158 void StringTestCase::Extraction()
 159 {
 160     wxString s(_T("Hello, world!"));
 161
 162     CPPUNIT_ASSERT( wxStrcmp( s.c_str() , _T("Hello, world!") ) == 0 );
 163     CPPUNIT_ASSERT( wxStrcmp( s.Left(5).c_str() , _T("Hello") ) == 0 );
 164     CPPUNIT_ASSERT( wxStrcmp( s.Right(6).c_str() , _T("world!") ) == 0 );
 165     CPPUNIT_ASSERT( wxStrcmp( s(3, 5).c_str() , _T("lo, w") ) == 0 );
 166     CPPUNIT_ASSERT( wxStrcmp( s.Mid(3).c_str() , _T("lo, world!") ) == 0 );
 167     CPPUNIT_ASSERT( wxStrcmp( s.substr(3, 5).c_str() , _T("lo, w") ) == 0 );
 168     CPPUNIT_ASSERT( wxStrcmp( s.substr(3).c_str() , _T("lo, world!") ) == 0 );
 169
 170     wxString rest;
 171
 172     #define TEST_STARTS_WITH(prefix, correct_rest, result)                    \
 173         CPPUNIT_ASSERT_EQUAL(result, s.StartsWith(prefix, &rest));            \
 174         if ( result )                                                         \
 175             CPPUNIT_ASSERT_EQUAL(wxString(correct_rest), rest)
 176
 177     TEST_STARTS_WITH( _T("Hello"),           _T(", world!"),      true  );
 178     TEST_STARTS_WITH( _T("Hello, "),         _T("world!"),        true  );
 179     TEST_STARTS_WITH( _T("Hello, world!"),   _T(""),              true  );
 180     TEST_STARTS_WITH( _T("Hello, world!!!"), _T(""),              false );
 181     TEST_STARTS_WITH( _T(""),                _T("Hello, world!"), true  );
 182     TEST_STARTS_WITH( _T("Goodbye"),         _T(""),              false );
 183     TEST_STARTS_WITH( _T("Hi"),              _T(""),              false );
 184
 185     #undef TEST_STARTS_WITH
 186
 187     #define TEST_ENDS_WITH(suffix, correct_rest, result)                      \
 188         CPPUNIT_ASSERT_EQUAL(result, s.EndsWith(suffix, &rest));              \
 189         if ( result )                                                         \
 190             CPPUNIT_ASSERT_EQUAL(wxString(correct_rest), rest)
 191
 192     TEST_ENDS_WITH( _T(""),                 _T("Hello, world!"), true  );
 193     TEST_ENDS_WITH( _T("!"),                _T("Hello, world"),  true  );
 194     TEST_ENDS_WITH( _T(", world!"),         _T("Hello"),         true  );
 195     TEST_ENDS_WITH( _T("ello, world!"),     _T("H"),             true  );
 196     TEST_ENDS_WITH( _T("Hello, world!"),    _T(""),              true  );
 197     TEST_ENDS_WITH( _T("very long string"), _T(""),              false );
 198     TEST_ENDS_WITH( _T("?"),                _T(""),              false );
 199     TEST_ENDS_WITH( _T("Hello, world"),     _T(""),              false );
 200     TEST_ENDS_WITH( _T("Gello, world!"),    _T(""),              false );
 201
 202     #undef TEST_ENDS_WITH
 203 }
 204
 205 void StringTestCase::Trim()
 206 {
 207     #define TEST_TRIM( str , dir , result )  \
 208         CPPUNIT_ASSERT( wxString(str).Trim(dir) == result )
 209
 210     TEST_TRIM( _T("  Test  "),  true, _T("  Test") );
 211     TEST_TRIM( _T("    "),      true, _T("")       );
 212     TEST_TRIM( _T(" "),         true, _T("")       );
 213     TEST_TRIM( _T(""),          true, _T("")       );
 214
 215     TEST_TRIM( _T("  Test  "),  false, _T("Test  ") );
 216     TEST_TRIM( _T("    "),      false, _T("")       );
 217     TEST_TRIM( _T(" "),         false, _T("")       );
 218     TEST_TRIM( _T(""),          false, _T("")       );
 219
 220     #undef TEST_TRIM
 221 }
 222
 223 void StringTestCase::Find()
 224 {
 225     #define TEST_FIND( str , start , result )  \
 226         CPPUNIT_ASSERT( wxString(str).find(_T("ell"), start) == result );
 227
 228     TEST_FIND( _T("Well, hello world"),  0, 1              );
 229     TEST_FIND( _T("Well, hello world"),  6, 7              );
 230     TEST_FIND( _T("Well, hello world"),  9, wxString::npos );
 231
 232     #undef TEST_FIND
 233 }
 234
 235 void StringTestCase::Replace()
 236 {
 237     #define TEST_REPLACE( original , pos , len , replacement , result ) \
 238         { \
 239             wxString s = original; \
 240             s.replace( pos , len , replacement ); \
 241             CPPUNIT_ASSERT( s == result ); \
 242         }
 243
 244     TEST_REPLACE( _T("012-AWORD-XYZ"), 4, 5, _T("BWORD"),  _T("012-BWORD-XYZ") );
 245     TEST_REPLACE( _T("increase"),      0, 2, _T("de"),     _T("decrease")      );
 246     TEST_REPLACE( _T("wxWindow"),      8, 0, _T("s"),      _T("wxWindows")     );
 247     TEST_REPLACE( _T("foobar"),        3, 0, _T("-"),      _T("foo-bar")       );
 248     TEST_REPLACE( _T("barfoo"),        0, 6, _T("foobar"), _T("foobar")        );
 249
 250
 251     #define TEST_NULLCHARREPLACE( o , olen, pos , len , replacement , r, rlen ) \
 252         { \
 253             wxString s(o,olen); \
 254             s.replace( pos , len , replacement ); \
 255             CPPUNIT_ASSERT( s == wxString(r,rlen) ); \
 256         }
 257
 258     TEST_NULLCHARREPLACE( _T("null\0char"), 9, 5, 1, _T("d"),
 259                           _T("null\0dhar"), 9 );
 260
 261     #define TEST_WXREPLACE( o , olen, olds, news, all, r, rlen ) \
 262         { \
 263             wxString s(o,olen); \
 264             s.Replace( olds, news, all ); \
 265             CPPUNIT_ASSERT( s == wxString(r,rlen) ); \
 266         }
 267
 268     TEST_WXREPLACE( _T("null\0char"), 9, _T("c"), _T("de"), true,
 269                           _T("null\0dehar"), 10 );
 270
 271     TEST_WXREPLACE( _T("null\0dehar"), 10, _T("de"), _T("c"), true,
 272                           _T("null\0char"), 9 );
 273
 274     #undef TEST_WXREPLACE
 275     #undef TEST_NULLCHARREPLACE
 276     #undef TEST_REPLACE
 277 }
 278
 279 void StringTestCase::Match()
 280 {
 281     #define TEST_MATCH( s1 , s2 , result ) \
 282         CPPUNIT_ASSERT( wxString(s1).Matches(s2) == result )
 283
 284     TEST_MATCH( _T("foobar"),    _T("foo*"),   true  );
 285     TEST_MATCH( _T("foobar"),    _T("*oo*"),   true  );
 286     TEST_MATCH( _T("foobar"),    _T("*bar"),   true  );
 287     TEST_MATCH( _T("foobar"),    _T("??????"), true  );
 288     TEST_MATCH( _T("foobar"),    _T("f??b*"),  true  );
 289     TEST_MATCH( _T("foobar"),    _T("f?b*"),   false );
 290     TEST_MATCH( _T("foobar"),    _T("*goo*"),  false );
 291     TEST_MATCH( _T("foobar"),    _T("*foo"),   false );
 292     TEST_MATCH( _T("foobarfoo"), _T("*foo"),   true  );
 293     TEST_MATCH( _T(""),          _T("*"),      true  );
 294     TEST_MATCH( _T(""),          _T("?"),      false );
 295
 296     #undef TEST_MATCH
 297 }
 298
 299
 300 void StringTestCase::CaseChanges()
 301 {
 302     wxString s1(_T("Hello!"));
 303     wxString s1u(s1);
 304     wxString s1l(s1);
 305     s1u.MakeUpper();
 306     s1l.MakeLower();
 307     wxString s2u, s2l;
 308     s2u.MakeUpper();
 309     s2l.MakeLower();
 310
 311     CPPUNIT_ASSERT( s1u == _T("HELLO!") );
 312     CPPUNIT_ASSERT( s1l == _T("hello!") );
 313     CPPUNIT_ASSERT( s2u == wxEmptyString );
 314     CPPUNIT_ASSERT( s2l == wxEmptyString );
 315
 316 #if !wxUSE_UNICODE
 317     wxLocale locRu(wxLANGUAGE_RUSSIAN, 0 /* flags */);
 318     if ( locRu.IsOk() )
 319     {
 320         // try upper casing 8bit strings
 321         const wchar_t capital_ya[] = { 0x42f, 0 },
 322                       small_ya[]   = { 0x44f, 0 };
 323
 324         wxString sUpper(wxConvLibc.cWC2MB(capital_ya)),
 325                  sLower(wxConvLibc.cWC2MB(small_ya));
 326
 327         CPPUNIT_ASSERT( sUpper.Lower() == sLower );
 328         CPPUNIT_ASSERT( sLower.Upper() == sUpper );
 329     }
 330 #endif // !wxUSE_UNICODE
 331 }
 332
 333 void StringTestCase::Compare()
 334 {
 335     wxString s1 = wxT("AHH");
 336     wxString eq = wxT("AHH");
 337     wxString neq1 = wxT("HAH");
 338     wxString neq2 = wxT("AH");
 339     wxString neq3 = wxT("AHHH");
 340     wxString neq4 = wxT("AhH");
 341
 342     CPPUNIT_ASSERT( s1 == eq );
 343     CPPUNIT_ASSERT( s1 != neq1 );
 344     CPPUNIT_ASSERT( s1 != neq2 );
 345     CPPUNIT_ASSERT( s1 != neq3 );
 346     CPPUNIT_ASSERT( s1 != neq4 );
 347
 348 //    wxString _s1 = wxT("A\0HH");
 349 //    wxString _eq = wxT("A\0HH");
 350 //    wxString _neq1 = wxT("H\0AH");
 351 //    wxString _neq2 = wxT("A\0H");
 352 //    wxString _neq3 = wxT("A\0HHH");
 353 //    wxString _neq4 = wxT("A\0hH");
 354     s1.insert(1,1,'\0');
 355     eq.insert(1,1,'\0');
 356     neq1.insert(1,1,'\0');
 357     neq2.insert(1,1,'\0');
 358     neq3.insert(1,1,'\0');
 359     neq4.insert(1,1,'\0');
 360
 361     CPPUNIT_ASSERT( s1 == eq );
 362     CPPUNIT_ASSERT( s1 != neq1 );
 363     CPPUNIT_ASSERT( s1 != neq2 );
 364     CPPUNIT_ASSERT( s1 != neq3 );
 365     CPPUNIT_ASSERT( s1 != neq4 );
 366 }
 367
 368 void StringTestCase::CompareNoCase()
 369 {
 370     wxString s1 = wxT("AHH");
 371     wxString eq = wxT("AHH");
 372     wxString eq2 = wxT("AhH");
 373     wxString eq3 = wxT("ahh");
 374     wxString neq = wxT("HAH");
 375     wxString neq2 = wxT("AH");
 376     wxString neq3 = wxT("AHHH");
 377
 378     #define CPPUNIT_CNCEQ_ASSERT(s1, s2) CPPUNIT_ASSERT( s1.CmpNoCase(s2) == 0)
 379     #define CPPUNIT_CNCNEQ_ASSERT(s1, s2) CPPUNIT_ASSERT( s1.CmpNoCase(s2) != 0)
 380
 381     CPPUNIT_CNCEQ_ASSERT( s1, eq );
 382     CPPUNIT_CNCEQ_ASSERT( s1, eq2 );
 383     CPPUNIT_CNCEQ_ASSERT( s1, eq3 );
 384
 385     CPPUNIT_CNCNEQ_ASSERT( s1, neq );
 386     CPPUNIT_CNCNEQ_ASSERT( s1, neq2 );
 387     CPPUNIT_CNCNEQ_ASSERT( s1, neq3 );
 388
 389
 390 //    wxString _s1 = wxT("A\0HH");
 391 //    wxString _eq = wxT("A\0HH");
 392 //    wxString _eq2 = wxT("A\0hH");
 393 //    wxString _eq3 = wxT("a\0hh");
 394 //    wxString _neq = wxT("H\0AH");
 395 //    wxString _neq2 = wxT("A\0H");
 396 //    wxString _neq3 = wxT("A\0HHH");
 397
 398     s1.insert(1,1,'\0');
 399     eq.insert(1,1,'\0');
 400     eq2.insert(1,1,'\0');
 401     eq3.insert(1,1,'\0');
 402     neq.insert(1,1,'\0');
 403     neq2.insert(1,1,'\0');
 404     neq3.insert(1,1,'\0');
 405
 406     CPPUNIT_CNCEQ_ASSERT( s1, eq );
 407     CPPUNIT_CNCEQ_ASSERT( s1, eq2 );
 408     CPPUNIT_CNCEQ_ASSERT( s1, eq3 );
 409
 410     CPPUNIT_CNCNEQ_ASSERT( s1, neq );
 411     CPPUNIT_CNCNEQ_ASSERT( s1, neq2 );
 412     CPPUNIT_CNCNEQ_ASSERT( s1, neq3 );
 413 }
 414
 415 void StringTestCase::Contains()
 416 {
 417     static const struct ContainsData
 418     {
 419         const wxChar *hay;
 420         const wxChar *needle;
 421         bool contains;
 422     } containsData[] =
 423     {
 424         { _T(""),       _T(""),         true  },
 425         { _T(""),       _T("foo"),      false },
 426         { _T("foo"),    _T(""),         true  },
 427         { _T("foo"),    _T("f"),        true  },
 428         { _T("foo"),    _T("o"),        true  },
 429         { _T("foo"),    _T("oo"),       true  },
 430         { _T("foo"),    _T("ooo"),      false },
 431         { _T("foo"),    _T("oooo"),     false },
 432         { _T("foo"),    _T("fooo"),     false },
 433     };
 434
 435     for ( size_t n = 0; n < WXSIZEOF(containsData); n++ )
 436     {
 437         const ContainsData& cd = containsData[n];
 438         CPPUNIT_ASSERT_EQUAL( cd.contains, wxString(cd.hay).Contains(cd.needle) );
 439     }
 440 }
 441
 442 void StringTestCase::ToLong()
 443 {
 444     static const struct ToLongData
 445     {
 446         const wxChar *str;
 447         long value;
 448         bool ok;
 449     } longData[] =
 450     {
 451         { _T("1"), 1, true },
 452         { _T("0"), 0, true },
 453         { _T("a"), 0, false },
 454         { _T("12345"), 12345, true },
 455         { _T("-1"), -1, true },
 456         { _T("--1"), 0, false },
 457     };
 458
 459     long l;
 460     for ( size_t n = 0; n < WXSIZEOF(longData); n++ )
 461     {
 462         const ToLongData& ld = longData[n];
 463         CPPUNIT_ASSERT_EQUAL( ld.ok, wxString(ld.str).ToLong(&l) );
 464         if ( ld.ok )
 465             CPPUNIT_ASSERT_EQUAL( ld.value, l );
 466     }
 467 }
 468
 469 void StringTestCase::ToULong()
 470 {
 471     unsigned long ul;
 472     static const struct ToULongData
 473     {
 474         const wxChar *str;
 475         unsigned long value;
 476         bool ok;
 477     } ulongData[] =
 478     {
 479         { _T("1"), 1, true },
 480         { _T("0"), 0, true },
 481         { _T("a"), 0, false },
 482         { _T("12345"), 12345, true },
 483         // this is surprizing but consistent with strtoul() behaviour
 484         { _T("-1"), ULONG_MAX, true },
 485     };
 486
 487     size_t n;
 488     for ( n = 0; n < WXSIZEOF(ulongData); n++ )
 489     {
 490         const ToULongData& uld = ulongData[n];
 491         CPPUNIT_ASSERT_EQUAL( uld.ok, wxString(uld.str).ToULong(&ul) );
 492         if ( uld.ok )
 493             CPPUNIT_ASSERT_EQUAL( uld.value, ul );
 494     }
 495 }
 496
 497 void StringTestCase::ToDouble()
 498 {
 499     double d;
 500     static const struct ToDoubleData
 501     {
 502         const wxChar *str;
 503         double value;
 504         bool ok;
 505     } doubleData[] =
 506     {
 507         { _T("1"), 1, true },
 508         { _T("1.23"), 1.23, true },
 509         { _T(".1"), .1, true },
 510         { _T("1."), 1, true },
 511         { _T("1.."), 0, false },
 512         { _T("0"), 0, true },
 513         { _T("a"), 0, false },
 514         { _T("12345"), 12345, true },
 515         { _T("-1"), -1, true },
 516         { _T("--1"), 0, false },
 517     };
 518
 519     // we need to use decimal point, not comma or whatever is its value for the
 520     // current locale
 521     wxSetlocale(LC_ALL, _T("C"));
 522
 523     size_t n;
 524     for ( n = 0; n < WXSIZEOF(doubleData); n++ )
 525     {
 526         const ToDoubleData& ld = doubleData[n];
 527         CPPUNIT_ASSERT_EQUAL( ld.ok, wxString(ld.str).ToDouble(&d) );
 528         if ( ld.ok )
 529             CPPUNIT_ASSERT_EQUAL( ld.value, d );
 530     }
 531 }