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