tests/strings/crt.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/strings/crt.cpp
   3 // Purpose:     Test for wx C runtime functions wrappers
   4 // Author:      Vaclav Slavik
   5 // Created:     2004-06-03
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2004 Vaclav Slavik
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 // ----------------------------------------------------------------------------
  12 // headers
  13 // ----------------------------------------------------------------------------
  14
  15 #include "testprec.h"
  16
  17 #ifdef __BORLANDC__
  18     #pragma hdrstop
  19 #endif
  20
  21 #ifndef WX_PRECOMP
  22     #include "wx/wx.h"
  23 #endif // WX_PRECOMP
  24
  25 #include "wx/textfile.h"
  26
  27 // ----------------------------------------------------------------------------
  28 // constants
  29 // ----------------------------------------------------------------------------
  30
  31 static const char *strMB = "hello, world";
  32 static const wchar_t *strWC = L"hello, world";
  33 static const wxString strWX("hello, world");
  34
  35 // ----------------------------------------------------------------------------
  36 // test class
  37 // ----------------------------------------------------------------------------
  38
  39 class CrtTestCase : public CppUnit::TestCase
  40 {
  41 public:
  42     CrtTestCase() {}
  43
  44 private:
  45     CPPUNIT_TEST_SUITE( CrtTestCase );
  46         CPPUNIT_TEST( SetGetEnv );
  47 #if wxUSE_UNICODE
  48         CPPUNIT_TEST( Strchr );
  49 #endif // wxUSE_UNICODE
  50         CPPUNIT_TEST( Strcmp );
  51         CPPUNIT_TEST( Strspn );
  52         CPPUNIT_TEST( Strcspn );
  53         CPPUNIT_TEST( Strpbrk );
  54         CPPUNIT_TEST( Strnlen );
  55     CPPUNIT_TEST_SUITE_END();
  56
  57     void SetGetEnv();
  58 #if wxUSE_UNICODE
  59     void Strchr();
  60 #endif // wxUSE_UNICODE
  61     void Strcmp();
  62     void Strspn();
  63     void Strcspn();
  64     void Strpbrk();
  65     void Strnlen();
  66
  67     DECLARE_NO_COPY_CLASS(CrtTestCase)
  68 };
  69
  70 // register in the unnamed registry so that these tests are run by default
  71 CPPUNIT_TEST_SUITE_REGISTRATION( CrtTestCase );
  72
  73 // also include in it's own registry so that these tests can be run alone
  74 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( CrtTestCase, "CrtTestCase" );
  75
  76 void CrtTestCase::SetGetEnv()
  77 {
  78 #define TESTVAR_NAME wxT("WXTESTVAR")
  79
  80     wxString val;
  81     wxSetEnv(TESTVAR_NAME, wxT("value"));
  82     CPPUNIT_ASSERT( wxGetEnv(TESTVAR_NAME, &val) );
  83     CPPUNIT_ASSERT_EQUAL( "value", val );
  84     CPPUNIT_ASSERT_EQUAL( "value", wxString(wxGetenv(TESTVAR_NAME)) );
  85
  86     wxSetEnv(TESTVAR_NAME, wxT("something else"));
  87     CPPUNIT_ASSERT( wxGetEnv(TESTVAR_NAME, &val) );
  88     CPPUNIT_ASSERT_EQUAL( "something else", val );
  89     CPPUNIT_ASSERT_EQUAL( "something else", wxString(wxGetenv(TESTVAR_NAME)) );
  90
  91     CPPUNIT_ASSERT( wxUnsetEnv(TESTVAR_NAME) );
  92     CPPUNIT_ASSERT( !wxGetEnv(TESTVAR_NAME, NULL) );
  93     CPPUNIT_ASSERT( !wxGetenv(TESTVAR_NAME) );
  94
  95 #undef TESTVAR_NAME
  96 }
  97
  98 #if wxUSE_UNICODE
  99 void CrtTestCase::Strchr()
 100 {
 101     // test that searching for a wide character in a narrow string simply
 102     // doesn't find it but doesn't fail with an assert (#11487)
 103     const wxUniChar smiley = *wxString::FromUTF8("\xe2\x98\xba").begin();
 104
 105     CPPUNIT_ASSERT( !wxStrchr("hello", smiley) );
 106
 107     // but searching for an explicitly wide character does find it
 108     CPPUNIT_ASSERT( wxStrchr(wxString::FromUTF8(":-) == \xe2\x98\xba"),
 109                     static_cast<wchar_t>(smiley)) );
 110 }
 111 #endif // wxUSE_UNICODE
 112
 113 void CrtTestCase::Strcmp()
 114 {
 115     // this code tests if all possible ways of calling wxStrcmp() compile:
 116     const char * const char1 = "first";
 117     const wchar_t * const wchar1 = L"first";
 118     wxString str1("first");
 119     wxCStrData cstr1(str1.c_str());
 120     wxCharBuffer charbuf1(char1);
 121     wxWCharBuffer wcharbuf1(wchar1);
 122
 123     const char * const char2 = "last";
 124     const wchar_t * const wchar2 = L"last";
 125     wxString str2("last");
 126     wxCStrData cstr2(str2.c_str());
 127     wxCharBuffer charbuf2(char2);
 128     wxWCharBuffer wcharbuf2(wchar2);
 129
 130     CPPUNIT_ASSERT( wxStrcmp(char1, char2) < 0 );
 131     CPPUNIT_ASSERT( wxStrcmp(char1, wchar2) < 0 );
 132     CPPUNIT_ASSERT( wxStrcmp(char1, str2) < 0 );
 133     CPPUNIT_ASSERT( wxStrcmp(char1, cstr2) < 0 );
 134     CPPUNIT_ASSERT( wxStrcmp(char1, charbuf2) < 0 );
 135     CPPUNIT_ASSERT( wxStrcmp(char1, wcharbuf2) < 0 );
 136
 137     CPPUNIT_ASSERT( wxStrcmp(wchar1, char2) < 0 );
 138     CPPUNIT_ASSERT( wxStrcmp(wchar1, wchar2) < 0 );
 139     CPPUNIT_ASSERT( wxStrcmp(wchar1, str2) < 0 );
 140     CPPUNIT_ASSERT( wxStrcmp(wchar1, cstr2) < 0 );
 141     CPPUNIT_ASSERT( wxStrcmp(wchar1, charbuf2) < 0 );
 142     CPPUNIT_ASSERT( wxStrcmp(wchar1, wcharbuf2) < 0 );
 143
 144     CPPUNIT_ASSERT( wxStrcmp(str1, char2) < 0 );
 145     CPPUNIT_ASSERT( wxStrcmp(str1, wchar2) < 0 );
 146     CPPUNIT_ASSERT( wxStrcmp(str1, str2) < 0 );
 147     CPPUNIT_ASSERT( wxStrcmp(str1, cstr2) < 0 );
 148     CPPUNIT_ASSERT( wxStrcmp(str1, charbuf2) < 0 );
 149     CPPUNIT_ASSERT( wxStrcmp(str1, wcharbuf2) < 0 );
 150
 151     CPPUNIT_ASSERT( wxStrcmp(cstr1, char2) < 0 );
 152     CPPUNIT_ASSERT( wxStrcmp(cstr1, wchar2) < 0 );
 153     CPPUNIT_ASSERT( wxStrcmp(cstr1, str2) < 0 );
 154     CPPUNIT_ASSERT( wxStrcmp(cstr1, cstr2) < 0 );
 155     CPPUNIT_ASSERT( wxStrcmp(cstr1, charbuf2) < 0 );
 156     CPPUNIT_ASSERT( wxStrcmp(cstr1, wcharbuf2) < 0 );
 157
 158     CPPUNIT_ASSERT( wxStrcmp(charbuf1, char2) < 0 );
 159     CPPUNIT_ASSERT( wxStrcmp(charbuf1, wchar2) < 0 );
 160     CPPUNIT_ASSERT( wxStrcmp(charbuf1, str2) < 0 );
 161     CPPUNIT_ASSERT( wxStrcmp(charbuf1, cstr2) < 0 );
 162     CPPUNIT_ASSERT( wxStrcmp(charbuf1, charbuf2) < 0 );
 163     CPPUNIT_ASSERT( wxStrcmp(charbuf1, wcharbuf2) < 0 );
 164
 165     CPPUNIT_ASSERT( wxStrcmp(wcharbuf1, char2) < 0 );
 166     CPPUNIT_ASSERT( wxStrcmp(wcharbuf1, wchar2) < 0 );
 167     CPPUNIT_ASSERT( wxStrcmp(wcharbuf1, str2) < 0 );
 168     CPPUNIT_ASSERT( wxStrcmp(wcharbuf1, cstr2) < 0 );
 169     CPPUNIT_ASSERT( wxStrcmp(wcharbuf1, charbuf2) < 0 );
 170     CPPUNIT_ASSERT( wxStrcmp(wcharbuf1, wcharbuf2) < 0 );
 171 }
 172
 173 void CrtTestCase::Strspn()
 174 {
 175     CPPUNIT_ASSERT_EQUAL( (size_t)0, wxStrspn(strMB, "xyz") );
 176     CPPUNIT_ASSERT_EQUAL( (size_t)0, wxStrspn(strWC, "xyz") );
 177     CPPUNIT_ASSERT_EQUAL( (size_t)0, wxStrspn(strWX, "xyz") );
 178     CPPUNIT_ASSERT_EQUAL( (size_t)0, wxStrspn(strMB, L"xyz") );
 179     CPPUNIT_ASSERT_EQUAL( (size_t)0, wxStrspn(strWC, L"xyz") );
 180     CPPUNIT_ASSERT_EQUAL( (size_t)0, wxStrspn(strWX, L"xyz") );
 181
 182     CPPUNIT_ASSERT_EQUAL( (size_t)5, wxStrspn(strMB, "hleo") );
 183     CPPUNIT_ASSERT_EQUAL( (size_t)5, wxStrspn(strWC, "hleo") );
 184     CPPUNIT_ASSERT_EQUAL( (size_t)5, wxStrspn(strWX, "hleo") );
 185
 186     CPPUNIT_ASSERT_EQUAL( (size_t)0, wxStrspn(strMB, "ld") );
 187     CPPUNIT_ASSERT_EQUAL( (size_t)0, wxStrspn(strWC, "ld") );
 188     CPPUNIT_ASSERT_EQUAL( (size_t)0, wxStrspn(strWX, "ld") );
 189
 190     CPPUNIT_ASSERT_EQUAL( strWX.length(), wxStrspn(strMB, strWC) );
 191     CPPUNIT_ASSERT_EQUAL( strWX.length(), wxStrspn(strWC, strWX) );
 192     CPPUNIT_ASSERT_EQUAL( strWX.length(), wxStrspn(strWX, strMB) );
 193 }
 194
 195 void CrtTestCase::Strcspn()
 196 {
 197     CPPUNIT_ASSERT_EQUAL( (size_t)0, wxStrcspn(strMB, strWX) );
 198     CPPUNIT_ASSERT_EQUAL( (size_t)0, wxStrcspn(strWC, strMB) );
 199     CPPUNIT_ASSERT_EQUAL( (size_t)0, wxStrcspn(strWX, strWC) );
 200
 201     CPPUNIT_ASSERT_EQUAL( (size_t)5, wxStrcspn(strMB, ", ") );
 202     CPPUNIT_ASSERT_EQUAL( (size_t)5, wxStrcspn(strWC, ", ") );
 203     CPPUNIT_ASSERT_EQUAL( (size_t)5, wxStrcspn(strWX, ", ") );
 204
 205     CPPUNIT_ASSERT_EQUAL( (size_t)0, wxStrcspn(strMB, "hel") );
 206     CPPUNIT_ASSERT_EQUAL( (size_t)0, wxStrcspn(strWC, "hel") );
 207     CPPUNIT_ASSERT_EQUAL( (size_t)0, wxStrcspn(strWX, "hel") );
 208
 209     CPPUNIT_ASSERT_EQUAL( strWX.length(), wxStrcspn(strMB, "xy") );
 210     CPPUNIT_ASSERT_EQUAL( strWX.length(), wxStrcspn(strWC, "xy") );
 211     CPPUNIT_ASSERT_EQUAL( strWX.length(), wxStrcspn(strWX, "xy") );
 212 }
 213
 214 void CrtTestCase::Strpbrk()
 215 {
 216     const wxString s(", ");
 217
 218     CPPUNIT_ASSERT_EQUAL(  ',', *wxStrpbrk(strMB,  ", ") );
 219     CPPUNIT_ASSERT_EQUAL( L',', *wxStrpbrk(strWC, L", ") );
 220     CPPUNIT_ASSERT_EQUAL(  ',', *wxStrpbrk(strWX,  ", ") );
 221     CPPUNIT_ASSERT_EQUAL( L',', *wxStrpbrk(strWX, L", ") );
 222
 223     CPPUNIT_ASSERT_EQUAL(  ',', *wxStrpbrk(strMB, s) );
 224     CPPUNIT_ASSERT_EQUAL( L',', *wxStrpbrk(strWC, s) );
 225     CPPUNIT_ASSERT_EQUAL(  ',', *wxStrpbrk(strWX, s) );
 226     CPPUNIT_ASSERT_EQUAL(  ',', *wxStrpbrk(strWX.c_str(), s) );
 227
 228     CPPUNIT_ASSERT_EQUAL(  ',', *wxStrpbrk(strMB, s.c_str()) );
 229     CPPUNIT_ASSERT_EQUAL( L',', *wxStrpbrk(strWC, s.c_str()) );
 230     CPPUNIT_ASSERT_EQUAL(  ',', *wxStrpbrk(strWX, s.c_str()) );
 231     CPPUNIT_ASSERT_EQUAL(  ',', *wxStrpbrk(strWX.c_str(), s.c_str()) );
 232
 233     CPPUNIT_ASSERT_EQUAL(  ',', *wxStrpbrk(strMB, s.mb_str()) );
 234     CPPUNIT_ASSERT_EQUAL( L',', *wxStrpbrk(strWC, s.wc_str()) );
 235     CPPUNIT_ASSERT_EQUAL(  ',', *wxStrpbrk(strWX, s.mb_str()) );
 236     CPPUNIT_ASSERT_EQUAL( L',', *wxStrpbrk(strWX, s.wc_str()) );
 237     CPPUNIT_ASSERT_EQUAL(  ',', *wxStrpbrk(strWX.c_str(), s.mb_str()) );
 238     CPPUNIT_ASSERT_EQUAL( L',', *wxStrpbrk(strWX.c_str(), s.wc_str()) );
 239
 240     CPPUNIT_ASSERT( !wxStrpbrk(strWX, "xyz") );
 241     CPPUNIT_ASSERT( !wxStrpbrk(strWX.c_str(), L"xyz") );
 242 }
 243
 244 void CrtTestCase::Strnlen()
 245 {
 246     // other misc tests for wxStrnlen(const char*, size_t)
 247
 248     CPPUNIT_ASSERT_EQUAL(  (size_t)0, wxStrnlen("", 0) );
 249     CPPUNIT_ASSERT_EQUAL(  (size_t)0, wxStrnlen("", 8) );
 250     CPPUNIT_ASSERT_EQUAL(  (size_t)0, wxStrnlen("1234", 0) );
 251     CPPUNIT_ASSERT_EQUAL(  (size_t)2, wxStrnlen("1234", 2) );
 252     CPPUNIT_ASSERT_EQUAL(  (size_t)4, wxStrnlen("1234", 8) );
 253     CPPUNIT_ASSERT_EQUAL(  (size_t)7, wxStrnlen("1234567", 8) );
 254     CPPUNIT_ASSERT_EQUAL(  (size_t)8, wxStrnlen("12345678", 8) );
 255     CPPUNIT_ASSERT_EQUAL(  (size_t)8, wxStrnlen("123456789", 8) );
 256     CPPUNIT_ASSERT_EQUAL(  (size_t)9, wxStrnlen("123456789", 12) );
 257
 258     // other misc tests for wxStrnlen(const wchar_t*, size_t)
 259
 260     CPPUNIT_ASSERT_EQUAL(  (size_t)0, wxStrnlen(L"", 0) );
 261     CPPUNIT_ASSERT_EQUAL(  (size_t)0, wxStrnlen(L"", 8) );
 262     CPPUNIT_ASSERT_EQUAL(  (size_t)0, wxStrnlen(L"1234", 0) );
 263     CPPUNIT_ASSERT_EQUAL(  (size_t)2, wxStrnlen(L"1234", 2) );
 264     CPPUNIT_ASSERT_EQUAL(  (size_t)4, wxStrnlen(L"1234", 8) );
 265     CPPUNIT_ASSERT_EQUAL(  (size_t)7, wxStrnlen(L"1234567", 8) );
 266     CPPUNIT_ASSERT_EQUAL(  (size_t)8, wxStrnlen(L"12345678", 8) );
 267     CPPUNIT_ASSERT_EQUAL(  (size_t)8, wxStrnlen(L"123456789", 8) );
 268     CPPUNIT_ASSERT_EQUAL(  (size_t)9, wxStrnlen(L"123456789", 12) );
 269
 270     // wxStrlen() is only for NULL-terminated strings:
 271     CPPUNIT_ASSERT_EQUAL(  (size_t)4, wxStrnlen("1234" "\0" "78", 12) );
 272     CPPUNIT_ASSERT_EQUAL(  (size_t)4, wxStrnlen(L"1234" L"\0" L"5678", 12) );
 273 }
 274
 275
 276