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 its 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     CPPUNIT_ASSERT_EQUAL
 171     (
 172         "two one",
 173         wxString::Format(wxT("%2$s %1$s"), wxT("one"), wxT("two"))
 174     );
 175 }
 176
 177 void StringTestCase::Constructors()
 178 {
 179     CPPUNIT_ASSERT_EQUAL( "", wxString('Z', 0) );
 180     CPPUNIT_ASSERT_EQUAL( "Z", wxString('Z') );
 181     CPPUNIT_ASSERT_EQUAL( "ZZZZ", wxString('Z', 4) );
 182     CPPUNIT_ASSERT_EQUAL( "Hell", wxString("Hello", 4) );
 183     CPPUNIT_ASSERT_EQUAL( "Hello", wxString("Hello", 5) );
 184
 185 #if wxUSE_UNICODE
 186     CPPUNIT_ASSERT_EQUAL( L"", wxString(L'Z', 0) );
 187     CPPUNIT_ASSERT_EQUAL( L"Z", wxString(L'Z') );
 188     CPPUNIT_ASSERT_EQUAL( L"ZZZZ", wxString(L'Z', 4) );
 189     CPPUNIT_ASSERT_EQUAL( L"Hell", wxString(L"Hello", 4) );
 190     CPPUNIT_ASSERT_EQUAL( L"Hello", wxString(L"Hello", 5) );
 191 #endif // wxUSE_UNICODE
 192
 193     static const char *s = "?really!";
 194     const char *start = wxStrchr(s, 'r');
 195     const char *end = wxStrchr(s, '!');
 196     CPPUNIT_ASSERT_EQUAL( "really", wxString(start, end) );
 197
 198     // test if creating string from NULL C pointer works:
 199     CPPUNIT_ASSERT_EQUAL( "", wxString((const char *)NULL) );
 200 }
 201
 202 void StringTestCase::StaticConstructors()
 203 {
 204     CPPUNIT_ASSERT_EQUAL( "", wxString::FromAscii("") );
 205     CPPUNIT_ASSERT_EQUAL( "", wxString::FromAscii("Hello", 0) );
 206     CPPUNIT_ASSERT_EQUAL( "Hell", wxString::FromAscii("Hello", 4) );
 207     CPPUNIT_ASSERT_EQUAL( "Hello", wxString::FromAscii("Hello", 5) );
 208     CPPUNIT_ASSERT_EQUAL( "Hello", wxString::FromAscii("Hello") );
 209
 210     // FIXME: this doesn't work currently but should!
 211     //CPPUNIT_ASSERT_EQUAL( 1, wxString::FromAscii("", 1).length() );
 212
 213
 214     CPPUNIT_ASSERT_EQUAL( "", wxString::FromUTF8("") );
 215     CPPUNIT_ASSERT_EQUAL( "", wxString::FromUTF8("Hello", 0) );
 216     CPPUNIT_ASSERT_EQUAL( "Hell", wxString::FromUTF8("Hello", 4) );
 217     CPPUNIT_ASSERT_EQUAL( "Hello", wxString::FromUTF8("Hello", 5) );
 218     CPPUNIT_ASSERT_EQUAL( "Hello", wxString::FromUTF8("Hello") );
 219
 220     //CPPUNIT_ASSERT_EQUAL( 1, wxString::FromUTF8("", 1).length() );
 221 }
 222
 223 void StringTestCase::Extraction()
 224 {
 225     wxString s(wxT("Hello, world!"));
 226
 227     CPPUNIT_ASSERT( wxStrcmp( s.c_str() , wxT("Hello, world!") ) == 0 );
 228     CPPUNIT_ASSERT( wxStrcmp( s.Left(5).c_str() , wxT("Hello") ) == 0 );
 229     CPPUNIT_ASSERT( wxStrcmp( s.Right(6).c_str() , wxT("world!") ) == 0 );
 230     CPPUNIT_ASSERT( wxStrcmp( s(3, 5).c_str() , wxT("lo, w") ) == 0 );
 231     CPPUNIT_ASSERT( wxStrcmp( s.Mid(3).c_str() , wxT("lo, world!") ) == 0 );
 232     CPPUNIT_ASSERT( wxStrcmp( s.substr(3, 5).c_str() , wxT("lo, w") ) == 0 );
 233     CPPUNIT_ASSERT( wxStrcmp( s.substr(3).c_str() , wxT("lo, world!") ) == 0 );
 234
 235 #if wxUSE_UNICODE
 236     static const char *germanUTF8 = "Oberfl\303\244che";
 237     wxString strUnicode(wxString::FromUTF8(germanUTF8));
 238
 239     CPPUNIT_ASSERT( strUnicode.Mid(0, 10) == strUnicode );
 240     CPPUNIT_ASSERT( strUnicode.Mid(7, 2) == "ch" );
 241 #endif // wxUSE_UNICODE
 242
 243     wxString rest;
 244
 245     #define TEST_STARTS_WITH(prefix, correct_rest, result)                    \
 246         CPPUNIT_ASSERT_EQUAL(result, s.StartsWith(prefix, &rest));            \
 247         if ( result )                                                         \
 248             CPPUNIT_ASSERT_EQUAL(correct_rest, rest)
 249
 250     TEST_STARTS_WITH( wxT("Hello"),           wxT(", world!"),      true  );
 251     TEST_STARTS_WITH( wxT("Hello, "),         wxT("world!"),        true  );
 252     TEST_STARTS_WITH( wxT("Hello, world!"),   wxT(""),              true  );
 253     TEST_STARTS_WITH( wxT("Hello, world!!!"), wxT(""),              false );
 254     TEST_STARTS_WITH( wxT(""),                wxT("Hello, world!"), true  );
 255     TEST_STARTS_WITH( wxT("Goodbye"),         wxT(""),              false );
 256     TEST_STARTS_WITH( wxT("Hi"),              wxT(""),              false );
 257
 258     #undef TEST_STARTS_WITH
 259
 260     rest = "Hello world";
 261     CPPUNIT_ASSERT( rest.StartsWith("Hello ", &rest) );
 262     CPPUNIT_ASSERT_EQUAL("world", rest);
 263
 264     #define TEST_ENDS_WITH(suffix, correct_rest, result)                      \
 265         CPPUNIT_ASSERT_EQUAL(result, s.EndsWith(suffix, &rest));              \
 266         if ( result )                                                         \
 267             CPPUNIT_ASSERT_EQUAL(correct_rest, rest)
 268
 269     TEST_ENDS_WITH( wxT(""),                 wxT("Hello, world!"), true  );
 270     TEST_ENDS_WITH( wxT("!"),                wxT("Hello, world"),  true  );
 271     TEST_ENDS_WITH( wxT(", world!"),         wxT("Hello"),         true  );
 272     TEST_ENDS_WITH( wxT("ello, world!"),     wxT("H"),             true  );
 273     TEST_ENDS_WITH( wxT("Hello, world!"),    wxT(""),              true  );
 274     TEST_ENDS_WITH( wxT("very long string"), wxT(""),              false );
 275     TEST_ENDS_WITH( wxT("?"),                wxT(""),              false );
 276     TEST_ENDS_WITH( wxT("Hello, world"),     wxT(""),              false );
 277     TEST_ENDS_WITH( wxT("Gello, world!"),    wxT(""),              false );
 278
 279     #undef TEST_ENDS_WITH
 280 }
 281
 282 void StringTestCase::Trim()
 283 {
 284     #define TEST_TRIM( str , dir , result )  \
 285         CPPUNIT_ASSERT( wxString(str).Trim(dir) == result )
 286
 287     TEST_TRIM( wxT("  Test  "),  true, wxT("  Test") );
 288     TEST_TRIM( wxT("    "),      true, wxT("")       );
 289     TEST_TRIM( wxT(" "),         true, wxT("")       );
 290     TEST_TRIM( wxT(""),          true, wxT("")       );
 291
 292     TEST_TRIM( wxT("  Test  "),  false, wxT("Test  ") );
 293     TEST_TRIM( wxT("    "),      false, wxT("")       );
 294     TEST_TRIM( wxT(" "),         false, wxT("")       );
 295     TEST_TRIM( wxT(""),          false, wxT("")       );
 296
 297     #undef TEST_TRIM
 298 }
 299
 300 void StringTestCase::Find()
 301 {
 302     #define TEST_FIND( str , start , result )  \
 303         CPPUNIT_ASSERT( wxString(str).find(wxT("ell"), start) == result );
 304
 305     TEST_FIND( wxT("Well, hello world"),  0, 1              );
 306     TEST_FIND( wxT("Well, hello world"),  6, 7              );
 307     TEST_FIND( wxT("Well, hello world"),  9, wxString::npos );
 308
 309     #undef TEST_FIND
 310 }
 311
 312 void StringTestCase::Replace()
 313 {
 314     #define TEST_REPLACE( original , pos , len , replacement , result ) \
 315         { \
 316             wxString s = original; \
 317             s.replace( pos , len , replacement ); \
 318             CPPUNIT_ASSERT_EQUAL( result, s ); \
 319         }
 320
 321     TEST_REPLACE( wxT("012-AWORD-XYZ"), 4, 5, wxT("BWORD"),  wxT("012-BWORD-XYZ") );
 322     TEST_REPLACE( wxT("increase"),      0, 2, wxT("de"),     wxT("decrease")      );
 323     TEST_REPLACE( wxT("wxWindow"),      8, 0, wxT("s"),      wxT("wxWindows")     );
 324     TEST_REPLACE( wxT("foobar"),        3, 0, wxT("-"),      wxT("foo-bar")       );
 325     TEST_REPLACE( wxT("barfoo"),        0, 6, wxT("foobar"), wxT("foobar")        );
 326
 327
 328     #define TEST_NULLCHARREPLACE( o , olen, pos , len , replacement , r, rlen ) \
 329         { \
 330             wxString s(o,olen); \
 331             s.replace( pos , len , replacement ); \
 332             CPPUNIT_ASSERT_EQUAL( wxString(r,rlen), s ); \
 333         }
 334
 335     TEST_NULLCHARREPLACE( wxT("null\0char"), 9, 5, 1, wxT("d"),
 336                           wxT("null\0dhar"), 9 );
 337
 338     #define TEST_WXREPLACE( o , olen, olds, news, all, r, rlen ) \
 339         { \
 340             wxString s(o,olen); \
 341             s.Replace( olds, news, all ); \
 342             CPPUNIT_ASSERT_EQUAL( wxString(r,rlen), s ); \
 343         }
 344
 345     TEST_WXREPLACE( wxT("null\0char"), 9, wxT("c"), wxT("de"), true,
 346                           wxT("null\0dehar"), 10 );
 347
 348     TEST_WXREPLACE( wxT("null\0dehar"), 10, wxT("de"), wxT("c"), true,
 349                           wxT("null\0char"), 9 );
 350
 351     TEST_WXREPLACE( "life", 4, "f", "", false, "lie", 3 );
 352     TEST_WXREPLACE( "life", 4, "f", "", true, "lie", 3 );
 353     TEST_WXREPLACE( "life", 4, "fe", "ve", true, "live", 4 );
 354     TEST_WXREPLACE( "xx", 2, "x", "yy", true, "yyyy", 4 );
 355     TEST_WXREPLACE( "xxx", 3, "xx", "z", true, "zx", 2 );
 356
 357     #undef TEST_WXREPLACE
 358     #undef TEST_NULLCHARREPLACE
 359     #undef TEST_REPLACE
 360 }
 361
 362 void StringTestCase::Match()
 363 {
 364     #define TEST_MATCH( s1 , s2 , result ) \
 365         CPPUNIT_ASSERT( wxString(s1).Matches(s2) == result )
 366
 367     TEST_MATCH( wxT("foobar"),    wxT("foo*"),   true  );
 368     TEST_MATCH( wxT("foobar"),    wxT("*oo*"),   true  );
 369     TEST_MATCH( wxT("foobar"),    wxT("*bar"),   true  );
 370     TEST_MATCH( wxT("foobar"),    wxT("??????"), true  );
 371     TEST_MATCH( wxT("foobar"),    wxT("f??b*"),  true  );
 372     TEST_MATCH( wxT("foobar"),    wxT("f?b*"),   false );
 373     TEST_MATCH( wxT("foobar"),    wxT("*goo*"),  false );
 374     TEST_MATCH( wxT("foobar"),    wxT("*foo"),   false );
 375     TEST_MATCH( wxT("foobarfoo"), wxT("*foo"),   true  );
 376     TEST_MATCH( wxT(""),          wxT("*"),      true  );
 377     TEST_MATCH( wxT(""),          wxT("?"),      false );
 378
 379     #undef TEST_MATCH
 380 }
 381
 382
 383 void StringTestCase::CaseChanges()
 384 {
 385     wxString s1(wxT("Hello!"));
 386     wxString s1u(s1);
 387     wxString s1l(s1);
 388     s1u.MakeUpper();
 389     s1l.MakeLower();
 390
 391     CPPUNIT_ASSERT_EQUAL( wxT("HELLO!"), s1u );
 392     CPPUNIT_ASSERT_EQUAL( wxT("hello!"), s1l );
 393
 394     wxString s2u, s2l;
 395     s2u.MakeUpper();
 396     s2l.MakeLower();
 397
 398     CPPUNIT_ASSERT_EQUAL( "", s2u );
 399     CPPUNIT_ASSERT_EQUAL( "", s2l );
 400
 401
 402     wxString s3("good bye");
 403     CPPUNIT_ASSERT_EQUAL( "Good bye", s3.Capitalize() );
 404     s3.MakeCapitalized();
 405     CPPUNIT_ASSERT_EQUAL( "Good bye", s3 );
 406
 407     CPPUNIT_ASSERT_EQUAL( "Abc", wxString("ABC").Capitalize() );
 408
 409     CPPUNIT_ASSERT_EQUAL( "", wxString().Capitalize() );
 410 }
 411
 412 void StringTestCase::Compare()
 413 {
 414     wxString s1 = wxT("AHH");
 415     wxString eq = wxT("AHH");
 416     wxString neq1 = wxT("HAH");
 417     wxString neq2 = wxT("AH");
 418     wxString neq3 = wxT("AHHH");
 419     wxString neq4 = wxT("AhH");
 420
 421     CPPUNIT_ASSERT( s1 == eq );
 422     CPPUNIT_ASSERT( s1 != neq1 );
 423     CPPUNIT_ASSERT( s1 != neq2 );
 424     CPPUNIT_ASSERT( s1 != neq3 );
 425     CPPUNIT_ASSERT( s1 != neq4 );
 426
 427     CPPUNIT_ASSERT( s1 == wxT("AHH") );
 428     CPPUNIT_ASSERT( s1 != wxT("no") );
 429     CPPUNIT_ASSERT( s1 < wxT("AZ") );
 430     CPPUNIT_ASSERT( s1 <= wxT("AZ") );
 431     CPPUNIT_ASSERT( s1 <= wxT("AHH") );
 432     CPPUNIT_ASSERT( s1 > wxT("AA") );
 433     CPPUNIT_ASSERT( s1 >= wxT("AA") );
 434     CPPUNIT_ASSERT( s1 >= wxT("AHH") );
 435
 436     // test comparison with C strings in Unicode build (must work in ANSI as
 437     // well, of course):
 438     CPPUNIT_ASSERT( s1 == "AHH" );
 439     CPPUNIT_ASSERT( s1 != "no" );
 440     CPPUNIT_ASSERT( s1 < "AZ" );
 441     CPPUNIT_ASSERT( s1 <= "AZ" );
 442     CPPUNIT_ASSERT( s1 <= "AHH" );
 443     CPPUNIT_ASSERT( s1 > "AA" );
 444     CPPUNIT_ASSERT( s1 >= "AA" );
 445     CPPUNIT_ASSERT( s1 >= "AHH" );
 446
 447 //    wxString _s1 = wxT("A\0HH");
 448 //    wxString _eq = wxT("A\0HH");
 449 //    wxString _neq1 = wxT("H\0AH");
 450 //    wxString _neq2 = wxT("A\0H");
 451 //    wxString _neq3 = wxT("A\0HHH");
 452 //    wxString _neq4 = wxT("A\0hH");
 453     s1.insert(1,1,'\0');
 454     eq.insert(1,1,'\0');
 455     neq1.insert(1,1,'\0');
 456     neq2.insert(1,1,'\0');
 457     neq3.insert(1,1,'\0');
 458     neq4.insert(1,1,'\0');
 459
 460     CPPUNIT_ASSERT( s1 == eq );
 461     CPPUNIT_ASSERT( s1 != neq1 );
 462     CPPUNIT_ASSERT( s1 != neq2 );
 463     CPPUNIT_ASSERT( s1 != neq3 );
 464     CPPUNIT_ASSERT( s1 != neq4 );
 465
 466     CPPUNIT_ASSERT( wxString("\n").Cmp(" ") < 0 );
 467     CPPUNIT_ASSERT( wxString("'").Cmp("!") > 0 );
 468     CPPUNIT_ASSERT( wxString("!").Cmp("z") < 0 );
 469 }
 470
 471 void StringTestCase::CompareNoCase()
 472 {
 473     wxString s1 = wxT("AHH");
 474     wxString eq = wxT("AHH");
 475     wxString eq2 = wxT("AhH");
 476     wxString eq3 = wxT("ahh");
 477     wxString neq = wxT("HAH");
 478     wxString neq2 = wxT("AH");
 479     wxString neq3 = wxT("AHHH");
 480
 481     #define CPPUNIT_CNCEQ_ASSERT(s1, s2) CPPUNIT_ASSERT( s1.CmpNoCase(s2) == 0)
 482     #define CPPUNIT_CNCNEQ_ASSERT(s1, s2) CPPUNIT_ASSERT( s1.CmpNoCase(s2) != 0)
 483
 484     CPPUNIT_CNCEQ_ASSERT( s1, eq );
 485     CPPUNIT_CNCEQ_ASSERT( s1, eq2 );
 486     CPPUNIT_CNCEQ_ASSERT( s1, eq3 );
 487
 488     CPPUNIT_CNCNEQ_ASSERT( s1, neq );
 489     CPPUNIT_CNCNEQ_ASSERT( s1, neq2 );
 490     CPPUNIT_CNCNEQ_ASSERT( s1, neq3 );
 491
 492
 493 //    wxString _s1 = wxT("A\0HH");
 494 //    wxString _eq = wxT("A\0HH");
 495 //    wxString _eq2 = wxT("A\0hH");
 496 //    wxString _eq3 = wxT("a\0hh");
 497 //    wxString _neq = wxT("H\0AH");
 498 //    wxString _neq2 = wxT("A\0H");
 499 //    wxString _neq3 = wxT("A\0HHH");
 500
 501     s1.insert(1,1,'\0');
 502     eq.insert(1,1,'\0');
 503     eq2.insert(1,1,'\0');
 504     eq3.insert(1,1,'\0');
 505     neq.insert(1,1,'\0');
 506     neq2.insert(1,1,'\0');
 507     neq3.insert(1,1,'\0');
 508
 509     CPPUNIT_CNCEQ_ASSERT( s1, eq );
 510     CPPUNIT_CNCEQ_ASSERT( s1, eq2 );
 511     CPPUNIT_CNCEQ_ASSERT( s1, eq3 );
 512
 513     CPPUNIT_CNCNEQ_ASSERT( s1, neq );
 514     CPPUNIT_CNCNEQ_ASSERT( s1, neq2 );
 515     CPPUNIT_CNCNEQ_ASSERT( s1, neq3 );
 516
 517     CPPUNIT_ASSERT( wxString("\n").CmpNoCase(" ") < 0 );
 518     CPPUNIT_ASSERT( wxString("'").CmpNoCase("!") > 0);
 519     CPPUNIT_ASSERT( wxString("!").Cmp("Z") < 0 );
 520 }
 521
 522 void StringTestCase::Contains()
 523 {
 524     static const struct ContainsData
 525     {
 526         const wxChar *hay;
 527         const wxChar *needle;
 528         bool contains;
 529     } containsData[] =
 530     {
 531         { wxT(""),       wxT(""),         true  },
 532         { wxT(""),       wxT("foo"),      false },
 533         { wxT("foo"),    wxT(""),         true  },
 534         { wxT("foo"),    wxT("f"),        true  },
 535         { wxT("foo"),    wxT("o"),        true  },
 536         { wxT("foo"),    wxT("oo"),       true  },
 537         { wxT("foo"),    wxT("ooo"),      false },
 538         { wxT("foo"),    wxT("oooo"),     false },
 539         { wxT("foo"),    wxT("fooo"),     false },
 540     };
 541
 542     for ( size_t n = 0; n < WXSIZEOF(containsData); n++ )
 543     {
 544         const ContainsData& cd = containsData[n];
 545         CPPUNIT_ASSERT_EQUAL( cd.contains, wxString(cd.hay).Contains(cd.needle) );
 546     }
 547 }
 548
 549 // flags used in ToLongData.flags
 550 enum
 551 {
 552     Number_Ok       = 0,
 553     Number_Invalid  = 1,
 554     Number_Unsigned = 2,    // if not specified, works for signed conversion
 555     Number_Signed   = 4,    // if not specified, works for unsigned
 556     Number_LongLong = 8,    // only for long long tests
 557     Number_Long     = 16    // only for long tests
 558 };
 559
 560 static const struct ToLongData
 561 {
 562     const wxChar *str;
 563 #ifdef wxLongLong_t
 564     wxLongLong_t value;
 565 #else
 566     long value;
 567 #endif // wxLongLong_t
 568     int flags;
 569
 570     long LValue() const { return value; }
 571     unsigned long ULValue() const { return value; }
 572 #ifdef wxLongLong_t
 573     wxLongLong_t LLValue() const { return value; }
 574     wxULongLong_t ULLValue() const { return (wxULongLong_t)value; }
 575 #endif // wxLongLong_t
 576
 577     bool IsOk() const { return !(flags & Number_Invalid); }
 578 } longData[] =
 579 {
 580     { wxT("1"), 1, Number_Ok },
 581     { wxT("0"), 0, Number_Ok },
 582     { wxT("a"), 0, Number_Invalid },
 583     { wxT("12345"), 12345, Number_Ok },
 584     { wxT("--1"), 0, Number_Invalid },
 585
 586     { wxT("-1"), -1, Number_Signed | Number_Long },
 587     // this is surprising but consistent with strtoul() behaviour
 588     { wxT("-1"), ULONG_MAX, Number_Unsigned | Number_Long },
 589
 590     // this must overflow, even with 64 bit long
 591     { wxT("922337203685477580711"), 0, Number_Invalid },
 592
 593 #ifdef wxLongLong_t
 594     { wxT("2147483648"), wxLL(2147483648), Number_LongLong },
 595     { wxT("-2147483648"), wxLL(-2147483648), Number_LongLong | Number_Signed },
 596     { wxT("9223372036854775808"), wxULL(9223372036854775808), Number_LongLong |
 597                                                              Number_Unsigned },
 598 #endif // wxLongLong_t
 599 };
 600
 601 void StringTestCase::ToLong()
 602 {
 603     long l;
 604     for ( size_t n = 0; n < WXSIZEOF(longData); n++ )
 605     {
 606         const ToLongData& ld = longData[n];
 607
 608         if ( ld.flags & (Number_LongLong | Number_Unsigned) )
 609             continue;
 610
 611         // NOTE: unless you're using some exotic locale, ToCLong and ToLong
 612         //       should behave the same for our test data set:
 613
 614         CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToCLong(&l) );
 615         if ( ld.IsOk() )
 616             CPPUNIT_ASSERT_EQUAL( ld.LValue(), l );
 617
 618         CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToLong(&l) );
 619         if ( ld.IsOk() )
 620             CPPUNIT_ASSERT_EQUAL( ld.LValue(), l );
 621     }
 622
 623     // special case: check that the output is not modified if the parsing
 624     // failed completely
 625     l = 17;
 626     CPPUNIT_ASSERT( !wxString("foo").ToLong(&l) );
 627     CPPUNIT_ASSERT_EQUAL( 17, l );
 628
 629     // also check that it is modified if we did parse something successfully in
 630     // the beginning of the string
 631     CPPUNIT_ASSERT( !wxString("9 cats").ToLong(&l) );
 632     CPPUNIT_ASSERT_EQUAL( 9, l );
 633 }
 634
 635 void StringTestCase::ToULong()
 636 {
 637     unsigned long ul;
 638     for ( size_t n = 0; n < WXSIZEOF(longData); n++ )
 639     {
 640         const ToLongData& ld = longData[n];
 641
 642         if ( ld.flags & (Number_LongLong | Number_Signed) )
 643             continue;
 644
 645         // NOTE: unless you're using some exotic locale, ToCLong and ToLong
 646         //       should behave the same for our test data set:
 647
 648         CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToCULong(&ul) );
 649         if ( ld.IsOk() )
 650             CPPUNIT_ASSERT_EQUAL( ld.ULValue(), ul );
 651
 652         CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToULong(&ul) );
 653         if ( ld.IsOk() )
 654             CPPUNIT_ASSERT_EQUAL( ld.ULValue(), ul );
 655     }
 656 }
 657
 658 #ifdef wxLongLong_t
 659
 660 void StringTestCase::ToLongLong()
 661 {
 662     wxLongLong_t l;
 663     for ( size_t n = 0; n < WXSIZEOF(longData); n++ )
 664     {
 665         const ToLongData& ld = longData[n];
 666
 667         if ( ld.flags & (Number_Long | Number_Unsigned) )
 668             continue;
 669
 670         CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToLongLong(&l) );
 671         if ( ld.IsOk() )
 672             CPPUNIT_ASSERT_EQUAL( ld.LLValue(), l );
 673     }
 674 }
 675
 676 void StringTestCase::ToULongLong()
 677 {
 678     wxULongLong_t ul;
 679     for ( size_t n = 0; n < WXSIZEOF(longData); n++ )
 680     {
 681         const ToLongData& ld = longData[n];
 682
 683         if ( ld.flags & (Number_Long | Number_Signed) )
 684             continue;
 685
 686         CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToULongLong(&ul) );
 687         if ( ld.IsOk() )
 688             CPPUNIT_ASSERT_EQUAL( ld.ULLValue(), ul );
 689     }
 690 }
 691
 692 #endif // wxLongLong_t
 693
 694 void StringTestCase::ToDouble()
 695 {
 696     double d;
 697     static const struct ToDoubleData
 698     {
 699         const wxChar *str;
 700         double value;
 701         bool ok;
 702     } doubleData[] =
 703     {
 704         { wxT("1"), 1, true },
 705         { wxT("1.23"), 1.23, true },
 706         { wxT(".1"), .1, true },
 707         { wxT("1."), 1, true },
 708         { wxT("1.."), 0, false },
 709         { wxT("0"), 0, true },
 710         { wxT("a"), 0, false },
 711         { wxT("12345"), 12345, true },
 712         { wxT("-1"), -1, true },
 713         { wxT("--1"), 0, false },
 714         { wxT("-3E-5"), -3E-5, true },
 715         { wxT("-3E-abcde5"), 0, false },
 716     };
 717
 718     // test ToCDouble() first:
 719
 720     size_t n;
 721     for ( n = 0; n < WXSIZEOF(doubleData); n++ )
 722     {
 723         const ToDoubleData& ld = doubleData[n];
 724         CPPUNIT_ASSERT_EQUAL( ld.ok, wxString(ld.str).ToCDouble(&d) );
 725         if ( ld.ok )
 726             CPPUNIT_ASSERT_EQUAL( ld.value, d );
 727     }
 728
 729
 730     // test ToDouble() now:
 731     // NOTE: for the test to be reliable, we need to set the locale explicitly
 732     //       so that we know the decimal point character to use
 733
 734     if (!wxLocale::IsAvailable(wxLANGUAGE_FRENCH))
 735         return;     // you should have french support installed to continue this test!
 736
 737     wxLocale locale;
 738
 739     // don't load default catalog, it may be unavailable:
 740     CPPUNIT_ASSERT( locale.Init(wxLANGUAGE_FRENCH, wxLOCALE_DONT_LOAD_DEFAULT) );
 741
 742     static const struct ToDoubleData doubleData2[] =
 743     {
 744         { wxT("1"), 1, true },
 745         { wxT("1,23"), 1.23, true },
 746         { wxT(",1"), .1, true },
 747         { wxT("1,"), 1, true },
 748         { wxT("1,,"), 0, false },
 749         { wxT("0"), 0, true },
 750         { wxT("a"), 0, false },
 751         { wxT("12345"), 12345, true },
 752         { wxT("-1"), -1, true },
 753         { wxT("--1"), 0, false },
 754         { wxT("-3E-5"), -3E-5, true },
 755         { wxT("-3E-abcde5"), 0, false },
 756     };
 757
 758     for ( n = 0; n < WXSIZEOF(doubleData2); n++ )
 759     {
 760         const ToDoubleData& ld = doubleData2[n];
 761         CPPUNIT_ASSERT_EQUAL( ld.ok, wxString(ld.str).ToDouble(&d) );
 762         if ( ld.ok )
 763             CPPUNIT_ASSERT_EQUAL( ld.value, d );
 764     }
 765 }
 766
 767 void StringTestCase::FromDouble()
 768 {
 769     static const struct FromDoubleTestData
 770     {
 771         double value;
 772         int prec;
 773         const char *str;
 774     } testData[] =
 775     {
 776         { 1.23,             -1, "1.23" },
 777         // NB: there are no standards about the minimum exponent width
 778         //     and newer MSVC versions use 3 digits as minimum exponent
 779         //     width while GNU libc uses 2 digits as minimum width...
 780 #ifdef wxUSING_VC_CRT_IO
 781         { -3e-10,           -1, "-3e-010" },
 782 #else
 783         { -3e-10,           -1, "-3e-10" },
 784 #endif
 785         { -0.45678,         -1, "-0.45678" },
 786         { 1.2345678,         0, "1" },
 787         { 1.2345678,         1, "1.2" },
 788         { 1.2345678,         2, "1.23" },
 789         { 1.2345678,         3, "1.235" },
 790     };
 791
 792     for ( unsigned n = 0; n < WXSIZEOF(testData); n++ )
 793     {
 794         const FromDoubleTestData& td = testData[n];
 795         CPPUNIT_ASSERT_EQUAL( td.str, wxString::FromCDouble(td.value, td.prec) );
 796     }
 797
 798     if ( !wxLocale::IsAvailable(wxLANGUAGE_FRENCH) )
 799         return;
 800
 801     wxLocale locale;
 802     CPPUNIT_ASSERT( locale.Init(wxLANGUAGE_FRENCH, wxLOCALE_DONT_LOAD_DEFAULT) );
 803
 804     for ( unsigned m = 0; m < WXSIZEOF(testData); m++ )
 805     {
 806         const FromDoubleTestData& td = testData[m];
 807
 808         wxString str(td.str);
 809         str.Replace(".", ",");
 810         CPPUNIT_ASSERT_EQUAL( str, wxString::FromDouble(td.value, td.prec) );
 811     }
 812 }
 813
 814 void StringTestCase::StringBuf()
 815 {
 816     // check that buffer can be used to write into the string
 817     wxString s;
 818     wxStrcpy(wxStringBuffer(s, 10), wxT("foo"));
 819
 820     CPPUNIT_ASSERT_EQUAL(3, s.length());
 821     CPPUNIT_ASSERT(wxT('f') == s[0u]);
 822     CPPUNIT_ASSERT(wxT('o') == s[1]);
 823     CPPUNIT_ASSERT(wxT('o') == s[2]);
 824
 825     {
 826         // also check that the buffer initially contains the original string
 827         // contents
 828         wxStringBuffer buf(s, 10);
 829         CPPUNIT_ASSERT_EQUAL( wxT('f'), buf[0] );
 830         CPPUNIT_ASSERT_EQUAL( wxT('o'), buf[1] );
 831         CPPUNIT_ASSERT_EQUAL( wxT('o'), buf[2] );
 832         CPPUNIT_ASSERT_EQUAL( wxT('\0'), buf[3] );
 833     }
 834
 835     {
 836         wxStringBufferLength buf(s, 10);
 837         CPPUNIT_ASSERT_EQUAL( wxT('f'), buf[0] );
 838         CPPUNIT_ASSERT_EQUAL( wxT('o'), buf[1] );
 839         CPPUNIT_ASSERT_EQUAL( wxT('o'), buf[2] );
 840         CPPUNIT_ASSERT_EQUAL( wxT('\0'), buf[3] );
 841
 842         // and check that it can be used to write only the specified number of
 843         // characters to the string
 844         wxStrcpy(buf, wxT("barrbaz"));
 845         buf.SetLength(4);
 846     }
 847
 848     CPPUNIT_ASSERT_EQUAL(4, s.length());
 849     CPPUNIT_ASSERT(wxT('b') == s[0u]);
 850     CPPUNIT_ASSERT(wxT('a') == s[1]);
 851     CPPUNIT_ASSERT(wxT('r') == s[2]);
 852     CPPUNIT_ASSERT(wxT('r') == s[3]);
 853
 854     // check that creating buffer of length smaller than string works, i.e. at
 855     // least doesn't crash (it would if we naively copied the entire original
 856     // string contents in the buffer)
 857     *wxStringBuffer(s, 1) = '!';
 858 }
 859
 860 void StringTestCase::UTF8Buf()
 861 {
 862 #if wxUSE_UNICODE
 863     // "czech" in Czech ("cestina"):
 864     static const char *textUTF8 = "\304\215e\305\241tina";
 865     static const wchar_t textUTF16[] = {0x10D, 0x65, 0x161, 0x74, 0x69, 0x6E, 0x61, 0};
 866
 867     wxString s;
 868     wxStrcpy(wxUTF8StringBuffer(s, 9), textUTF8);
 869     CPPUNIT_ASSERT(s == textUTF16);
 870
 871     {
 872         wxUTF8StringBufferLength buf(s, 20);
 873         wxStrcpy(buf, textUTF8);
 874         buf.SetLength(5);
 875     }
 876     CPPUNIT_ASSERT(s == wxString(textUTF16, 0, 3));
 877 #endif // wxUSE_UNICODE
 878 }
 879
 880
 881
 882 void StringTestCase::CStrDataTernaryOperator()
 883 {
 884     DoCStrDataTernaryOperator(true);
 885     DoCStrDataTernaryOperator(false);
 886 }
 887
 888 template<typename T> bool CheckStr(const wxString& expected, T s)
 889 {
 890     return expected == wxString(s);
 891 }
 892
 893 void StringTestCase::DoCStrDataTernaryOperator(bool cond)
 894 {
 895     // test compilation of wxCStrData when used with operator?: (the asserts
 896     // are not very important, we're testing if the code compiles at all):
 897
 898     wxString s("foo");
 899
 900     const wchar_t *wcStr = L"foo";
 901     CPPUNIT_ASSERT( CheckStr(s, (cond ? s.c_str() : wcStr)) );
 902     CPPUNIT_ASSERT( CheckStr(s, (cond ? s.c_str() : L"foo")) );
 903     CPPUNIT_ASSERT( CheckStr(s, (cond ? wcStr : s.c_str())) );
 904     CPPUNIT_ASSERT( CheckStr(s, (cond ? L"foo" : s.c_str())) );
 905
 906     const char *mbStr = "foo";
 907     CPPUNIT_ASSERT( CheckStr(s, (cond ? s.c_str() : mbStr)) );
 908     CPPUNIT_ASSERT( CheckStr(s, (cond ? s.c_str() : "foo")) );
 909     CPPUNIT_ASSERT( CheckStr(s, (cond ? mbStr : s.c_str())) );
 910     CPPUNIT_ASSERT( CheckStr(s, (cond ? "foo" : s.c_str())) );
 911
 912     wxString empty("");
 913     CPPUNIT_ASSERT( CheckStr(empty, (cond ? empty.c_str() : wxEmptyString)) );
 914     CPPUNIT_ASSERT( CheckStr(empty, (cond ? wxEmptyString : empty.c_str())) );
 915 }
 916
 917 void StringTestCase::CStrDataOperators()
 918 {
 919     wxString s("hello");
 920
 921     CPPUNIT_ASSERT( s.c_str()[0] == 'h' );
 922     CPPUNIT_ASSERT( s.c_str()[1] == 'e' );
 923
 924     // IMPORTANT: at least with the CRT coming with MSVC++ 2008 trying to access
 925     //            the final character results in an assert failure (with debug CRT)
 926     //CPPUNIT_ASSERT( s.c_str()[5] == '\0' );
 927
 928     CPPUNIT_ASSERT( *s.c_str() == 'h' );
 929     CPPUNIT_ASSERT( *(s.c_str() + 2) == 'l' );
 930     //CPPUNIT_ASSERT( *(s.c_str() + 5) == '\0' );
 931 }
 932
 933 bool CheckStrChar(const wxString& expected, char *s)
 934     { return CheckStr(expected, s); }
 935 bool CheckStrWChar(const wxString& expected, wchar_t *s)
 936     { return CheckStr(expected, s); }
 937 bool CheckStrConstChar(const wxString& expected, const char *s)
 938     { return CheckStr(expected, s); }
 939 bool CheckStrConstWChar(const wxString& expected, const wchar_t *s)
 940     { return CheckStr(expected, s); }
 941
 942 void StringTestCase::CStrDataImplicitConversion()
 943 {
 944     wxString s("foo");
 945
 946     CPPUNIT_ASSERT( CheckStrConstWChar(s, s.c_str()) );
 947     CPPUNIT_ASSERT( CheckStrConstChar(s, s.c_str()) );
 948
 949     // implicit conversion of wxString is not available in STL build
 950 #if !wxUSE_STL
 951     CPPUNIT_ASSERT( CheckStrConstWChar(s, s) );
 952     CPPUNIT_ASSERT( CheckStrConstChar(s, s) );
 953 #endif
 954 }
 955
 956 void StringTestCase::ExplicitConversion()
 957 {
 958     wxString s("foo");
 959
 960     CPPUNIT_ASSERT( CheckStr(s, s.mb_str()) );
 961     CPPUNIT_ASSERT( CheckStrConstChar(s, s.mb_str()) );
 962     CPPUNIT_ASSERT( CheckStrChar(s, s.char_str()) );
 963
 964     CPPUNIT_ASSERT( CheckStr(s, s.wc_str()) );
 965     CPPUNIT_ASSERT( CheckStrConstWChar(s, s.wc_str()) );
 966     CPPUNIT_ASSERT( CheckStrWChar(s, s.wchar_str()) );
 967 }
 968
 969 void StringTestCase::IndexedAccess()
 970 {
 971     wxString s("bar");
 972     CPPUNIT_ASSERT_EQUAL( 'r', (char)s[2] );
 973
 974     // this tests for a possible bug in UTF-8 based wxString implementation:
 975     // the 3rd character of the underlying byte string is going to change, but
 976     // the 3rd character of wxString should remain the same
 977     s[0] = L'\xe9';
 978     CPPUNIT_ASSERT_EQUAL( 'r', (char)s[2] );
 979 }
 980
 981 void StringTestCase::BeforeAndAfter()
 982 {
 983     // Construct a string with 2 equal signs in it by concatenating its three
 984     // parts: before the first "=", in between the two "="s and after the last
 985     // one. This allows to avoid duplicating the string contents (which has to
 986     // be different for Unicode and ANSI builds) in the tests below.
 987 #if wxUSE_UNICODE
 988     #define FIRST_PART L"letter"
 989     #define MIDDLE_PART L"\xe9;\xe7a"
 990     #define LAST_PART L"l\xe0"
 991 #else // !wxUSE_UNICODE
 992     #define FIRST_PART "letter"
 993     #define MIDDLE_PART "e;ca"
 994     #define LAST_PART "la"
 995 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
 996
 997     const wxString s(FIRST_PART wxT("=") MIDDLE_PART wxT("=") LAST_PART);
 998
 999     wxString r;
1000
1001     CPPUNIT_ASSERT_EQUAL( FIRST_PART, s.BeforeFirst('=', &r) );
1002     CPPUNIT_ASSERT_EQUAL( MIDDLE_PART wxT("=") LAST_PART, r );
1003
1004     CPPUNIT_ASSERT_EQUAL( s, s.BeforeFirst('!', &r) );
1005     CPPUNIT_ASSERT_EQUAL( "", r );
1006
1007
1008     CPPUNIT_ASSERT_EQUAL( FIRST_PART wxT("=") MIDDLE_PART, s.BeforeLast('=', &r) );
1009     CPPUNIT_ASSERT_EQUAL( LAST_PART, r );
1010
1011     CPPUNIT_ASSERT_EQUAL( "", s.BeforeLast('!', &r) );
1012     CPPUNIT_ASSERT_EQUAL( s, r );
1013
1014
1015     CPPUNIT_ASSERT_EQUAL( MIDDLE_PART wxT("=") LAST_PART, s.AfterFirst('=') );
1016     CPPUNIT_ASSERT_EQUAL( "", s.AfterFirst('!') );
1017
1018
1019     CPPUNIT_ASSERT_EQUAL( LAST_PART, s.AfterLast('=') );
1020     CPPUNIT_ASSERT_EQUAL( s, s.AfterLast('!') );
1021
1022     #undef LAST_PART
1023     #undef MIDDLE_PART
1024     #undef FIRST_PART
1025 }
1026
1027 void StringTestCase::ScopedBuffers()
1028 {
1029     // wxString relies on efficient buffers, verify they work as they should
1030
1031     const char *literal = "Hello World!";
1032
1033     // non-owned buffer points to the string passed to it
1034     wxScopedCharBuffer sbuf = wxScopedCharBuffer::CreateNonOwned(literal);
1035     CPPUNIT_ASSERT( sbuf.data() == literal );
1036
1037     // a copy of scoped non-owned buffer still points to the same string
1038     wxScopedCharBuffer sbuf2(sbuf);
1039     CPPUNIT_ASSERT( sbuf.data() == sbuf2.data() );
1040
1041     // but assigning it to wxCharBuffer makes a full copy
1042     wxCharBuffer buf(sbuf);
1043     CPPUNIT_ASSERT( buf.data() != literal );
1044     CPPUNIT_ASSERT_EQUAL( literal, buf.data() );
1045
1046     wxCharBuffer buf2 = sbuf;
1047     CPPUNIT_ASSERT( buf2.data() != literal );
1048     CPPUNIT_ASSERT_EQUAL( literal, buf.data() );
1049
1050     // Check that extending the buffer keeps it NUL-terminated.
1051     size_t len = 10;
1052
1053     wxCharBuffer buf3(len);
1054     CPPUNIT_ASSERT_EQUAL('\0', buf3.data()[len]);
1055
1056     wxCharBuffer buf4;
1057     buf4.extend(len);
1058     CPPUNIT_ASSERT_EQUAL('\0', buf4.data()[len]);
1059
1060     wxCharBuffer buf5(5);
1061     buf5.extend(len);
1062     CPPUNIT_ASSERT_EQUAL('\0', buf5.data()[len]);
1063 }