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