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( \
 170             ( s.StartsWith( prefix, &rest ) == result ) && \
 171             ( ( result == false ) || ( wxStrcmp( correct_rest , rest ) == 0 ) ) \
 172         )
 173
 174     TEST_STARTS_WITH( _T("Hello"),           _T(", world!"),      true  );
 175     TEST_STARTS_WITH( _T("Hello, "),         _T("world!"),        true  );
 176     TEST_STARTS_WITH( _T("Hello, world!"),   _T(""),              true  );
 177     TEST_STARTS_WITH( _T("Hello, world!!!"), _T(""),              false );
 178     TEST_STARTS_WITH( _T(""),                _T("Hello, world!"), true  );
 179     TEST_STARTS_WITH( _T("Goodbye"),         _T(""),              false );
 180     TEST_STARTS_WITH( _T("Hi"),              _T(""),              false );
 181
 182     #undef TEST_STARTS_WITH
 183 }
 184
 185 void StringTestCase::Find()
 186 {
 187     #define TEST_FIND( str , start , result )  \
 188         CPPUNIT_ASSERT( wxString(str).find(_T("ell"), start) == result );
 189
 190     TEST_FIND( _T("Well, hello world"),  0, 1              );
 191     TEST_FIND( _T("Well, hello world"),  6, 7              );
 192     TEST_FIND( _T("Well, hello world"),  9, wxString::npos );
 193
 194     #undef TEST_FIND
 195 }
 196
 197 void StringTestCase::Replace()
 198 {
 199     #define TEST_REPLACE( original , pos , len , replacement , result ) \
 200         { \
 201             wxString s = original; \
 202             s.replace( pos , len , replacement ); \
 203             CPPUNIT_ASSERT( s == result ); \
 204         }
 205
 206     TEST_REPLACE( _T("012-AWORD-XYZ"), 4, 5, _T("BWORD"),  _T("012-BWORD-XYZ") );
 207     TEST_REPLACE( _T("increase"),      0, 2, _T("de"),     _T("decrease")      );
 208     TEST_REPLACE( _T("wxWindow"),      8, 0, _T("s"),      _T("wxWindows")     );
 209     TEST_REPLACE( _T("foobar"),        3, 0, _T("-"),      _T("foo-bar")       );
 210     TEST_REPLACE( _T("barfoo"),        0, 6, _T("foobar"), _T("foobar")        );
 211
 212
 213     #define TEST_NULLCHARREPLACE( o , olen, pos , len , replacement , r, rlen ) \
 214         { \
 215             wxString s(o,olen); \
 216             s.replace( pos , len , replacement ); \
 217             CPPUNIT_ASSERT( s == wxString(r,rlen) ); \
 218         }
 219
 220     TEST_NULLCHARREPLACE( _T("null\0char"), 9, 5, 1, _T("d"),
 221                           _T("null\0dhar"), 9 );
 222
 223     #define TEST_WXREPLACE( o , olen, olds, news, all, r, rlen ) \
 224         { \
 225             wxString s(o,olen); \
 226             s.Replace( olds, news, all ); \
 227             CPPUNIT_ASSERT( s == wxString(r,rlen) ); \
 228         }
 229
 230     TEST_WXREPLACE( _T("null\0char"), 9, _T("c"), _T("de"), true,
 231                           _T("null\0dehar"), 10 );
 232
 233     TEST_WXREPLACE( _T("null\0dehar"), 10, _T("de"), _T("c"), true,
 234                           _T("null\0char"), 9 );
 235
 236     #undef TEST_WXREPLACE
 237     #undef TEST_NULLCHARREPLACE
 238     #undef TEST_REPLACE
 239 }
 240
 241 void StringTestCase::Match()
 242 {
 243     #define TEST_MATCH( s1 , s2 , result ) \
 244         CPPUNIT_ASSERT( wxString(s1).Matches(s2) == result )
 245
 246     TEST_MATCH( _T("foobar"),    _T("foo*"),   true  );
 247     TEST_MATCH( _T("foobar"),    _T("*oo*"),   true  );
 248     TEST_MATCH( _T("foobar"),    _T("*bar"),   true  );
 249     TEST_MATCH( _T("foobar"),    _T("??????"), true  );
 250     TEST_MATCH( _T("foobar"),    _T("f??b*"),  true  );
 251     TEST_MATCH( _T("foobar"),    _T("f?b*"),   false );
 252     TEST_MATCH( _T("foobar"),    _T("*goo*"),  false );
 253     TEST_MATCH( _T("foobar"),    _T("*foo"),   false );
 254     TEST_MATCH( _T("foobarfoo"), _T("*foo"),   true  );
 255     TEST_MATCH( _T(""),          _T("*"),      true  );
 256     TEST_MATCH( _T(""),          _T("?"),      false );
 257
 258     #undef TEST_MATCH
 259 }
 260
 261
 262 void StringTestCase::CaseChanges()
 263 {
 264     wxString s1(_T("Hello!"));
 265     wxString s1u(s1);
 266     wxString s1l(s1);
 267     s1u.MakeUpper();
 268     s1l.MakeLower();
 269     wxString s2u, s2l;
 270     s2u.MakeUpper();
 271     s2l.MakeLower();
 272
 273     CPPUNIT_ASSERT( s1u == _T("HELLO!") );
 274     CPPUNIT_ASSERT( s1l == _T("hello!") );
 275     CPPUNIT_ASSERT( s2u == wxEmptyString );
 276     CPPUNIT_ASSERT( s2l == wxEmptyString );
 277
 278 #if !wxUSE_UNICODE
 279     wxLocale locRu(wxLANGUAGE_RUSSIAN, 0 /* flags */);
 280     if ( locRu.IsOk() )
 281     {
 282         // try upper casing 8bit strings
 283         const wchar_t capital_ya[] = { 0x42f, 0 },
 284                       small_ya[]   = { 0x44f, 0 };
 285
 286         wxString sUpper(wxConvLibc.cWC2MB(capital_ya)),
 287                  sLower(wxConvLibc.cWC2MB(small_ya));
 288
 289         CPPUNIT_ASSERT( sUpper.Lower() == sLower );
 290         CPPUNIT_ASSERT( sLower.Upper() == sUpper );
 291     }
 292 #endif // !wxUSE_UNICODE
 293 }
 294
 295 void StringTestCase::Compare()
 296 {
 297     wxString s1 = wxT("AHH");
 298     wxString eq = wxT("AHH");
 299     wxString neq1 = wxT("HAH");
 300     wxString neq2 = wxT("AH");
 301     wxString neq3 = wxT("AHHH");
 302     wxString neq4 = wxT("AhH");
 303
 304     CPPUNIT_ASSERT( s1 == eq );
 305     CPPUNIT_ASSERT( s1 != neq1 );
 306     CPPUNIT_ASSERT( s1 != neq2 );
 307     CPPUNIT_ASSERT( s1 != neq3 );
 308     CPPUNIT_ASSERT( s1 != neq4 );
 309
 310 //    wxString _s1 = wxT("A\0HH");
 311 //    wxString _eq = wxT("A\0HH");
 312 //    wxString _neq1 = wxT("H\0AH");
 313 //    wxString _neq2 = wxT("A\0H");
 314 //    wxString _neq3 = wxT("A\0HHH");
 315 //    wxString _neq4 = wxT("A\0hH");
 316     s1.insert(1,1,'\0');
 317     eq.insert(1,1,'\0');
 318     neq1.insert(1,1,'\0');
 319     neq2.insert(1,1,'\0');
 320     neq3.insert(1,1,'\0');
 321     neq4.insert(1,1,'\0');
 322
 323     CPPUNIT_ASSERT( s1 == eq );
 324     CPPUNIT_ASSERT( s1 != neq1 );
 325     CPPUNIT_ASSERT( s1 != neq2 );
 326     CPPUNIT_ASSERT( s1 != neq3 );
 327     CPPUNIT_ASSERT( s1 != neq4 );
 328 }
 329
 330 void StringTestCase::CompareNoCase()
 331 {
 332     wxString s1 = wxT("AHH");
 333     wxString eq = wxT("AHH");
 334     wxString eq2 = wxT("AhH");
 335     wxString eq3 = wxT("ahh");
 336     wxString neq = wxT("HAH");
 337     wxString neq2 = wxT("AH");
 338     wxString neq3 = wxT("AHHH");
 339
 340     #define CPPUNIT_CNCEQ_ASSERT(s1, s2) CPPUNIT_ASSERT( s1.CmpNoCase(s2) == 0)
 341     #define CPPUNIT_CNCNEQ_ASSERT(s1, s2) CPPUNIT_ASSERT( s1.CmpNoCase(s2) != 0)
 342
 343     CPPUNIT_CNCEQ_ASSERT( s1, eq );
 344     CPPUNIT_CNCEQ_ASSERT( s1, eq2 );
 345     CPPUNIT_CNCEQ_ASSERT( s1, eq3 );
 346
 347     CPPUNIT_CNCNEQ_ASSERT( s1, neq );
 348     CPPUNIT_CNCNEQ_ASSERT( s1, neq2 );
 349     CPPUNIT_CNCNEQ_ASSERT( s1, neq3 );
 350
 351
 352 //    wxString _s1 = wxT("A\0HH");
 353 //    wxString _eq = wxT("A\0HH");
 354 //    wxString _eq2 = wxT("A\0hH");
 355 //    wxString _eq3 = wxT("a\0hh");
 356 //    wxString _neq = wxT("H\0AH");
 357 //    wxString _neq2 = wxT("A\0H");
 358 //    wxString _neq3 = wxT("A\0HHH");
 359
 360     s1.insert(1,1,'\0');
 361     eq.insert(1,1,'\0');
 362     eq2.insert(1,1,'\0');
 363     eq3.insert(1,1,'\0');
 364     neq.insert(1,1,'\0');
 365     neq2.insert(1,1,'\0');
 366     neq3.insert(1,1,'\0');
 367
 368     CPPUNIT_CNCEQ_ASSERT( s1, eq );
 369     CPPUNIT_CNCEQ_ASSERT( s1, eq2 );
 370     CPPUNIT_CNCEQ_ASSERT( s1, eq3 );
 371
 372     CPPUNIT_CNCNEQ_ASSERT( s1, neq );
 373     CPPUNIT_CNCNEQ_ASSERT( s1, neq2 );
 374     CPPUNIT_CNCNEQ_ASSERT( s1, neq3 );
 375 }
 376
 377 void StringTestCase::ToLong()
 378 {
 379     long l;
 380     static const struct ToLongData
 381     {
 382         const wxChar *str;
 383         long value;
 384         bool ok;
 385     } longData[] =
 386     {
 387         { _T("1"), 1, true },
 388         { _T("0"), 0, true },
 389         { _T("a"), 0, false },
 390         { _T("12345"), 12345, true },
 391         { _T("-1"), -1, true },
 392         { _T("--1"), 0, false },
 393     };
 394
 395     size_t n;
 396     for ( n = 0; n < WXSIZEOF(longData); n++ )
 397     {
 398         const ToLongData& ld = longData[n];
 399         CPPUNIT_ASSERT_EQUAL( ld.ok, wxString(ld.str).ToLong(&l) );
 400         if ( ld.ok )
 401             CPPUNIT_ASSERT_EQUAL( ld.value, l );
 402     }
 403 }
 404
 405 void StringTestCase::ToULong()
 406 {
 407     unsigned long ul;
 408     static const struct ToULongData
 409     {
 410         const wxChar *str;
 411         unsigned long value;
 412         bool ok;
 413     } ulongData[] =
 414     {
 415         { _T("1"), 1, true },
 416         { _T("0"), 0, true },
 417         { _T("a"), 0, false },
 418         { _T("12345"), 12345, true },
 419         // this is surprizing but consistent with strtoul() behaviour
 420         { _T("-1"), ULONG_MAX, true },
 421     };
 422
 423     size_t n;
 424     for ( n = 0; n < WXSIZEOF(ulongData); n++ )
 425     {
 426         const ToULongData& uld = ulongData[n];
 427         CPPUNIT_ASSERT_EQUAL( uld.ok, wxString(uld.str).ToULong(&ul) );
 428         if ( uld.ok )
 429             CPPUNIT_ASSERT_EQUAL( uld.value, ul );
 430     }
 431 }
 432
 433 void StringTestCase::ToDouble()
 434 {
 435     double d;
 436     static const struct ToDoubleData
 437     {
 438         const wxChar *str;
 439         double value;
 440         bool ok;
 441     } doubleData[] =
 442     {
 443         { _T("1"), 1, true },
 444         { _T("1.23"), 1.23, true },
 445         { _T(".1"), .1, true },
 446         { _T("1."), 1, true },
 447         { _T("1.."), 0, false },
 448         { _T("0"), 0, true },
 449         { _T("a"), 0, false },
 450         { _T("12345"), 12345, true },
 451         { _T("-1"), -1, true },
 452         { _T("--1"), 0, false },
 453     };
 454
 455     // we need to use decimal point, not comma or whatever is its value for the
 456     // current locale
 457     wxSetlocale(LC_ALL, _T("C"));
 458
 459     size_t n;
 460     for ( n = 0; n < WXSIZEOF(doubleData); n++ )
 461     {
 462         const ToDoubleData& ld = doubleData[n];
 463         CPPUNIT_ASSERT_EQUAL( ld.ok, wxString(ld.str).ToDouble(&d) );
 464         if ( ld.ok )
 465             CPPUNIT_ASSERT_EQUAL( ld.value, d );
 466     }
 467 }