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