tests/strings/tokenizer.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/strings/strings.cpp
   3 // Purpose:     wxStringTokenizer unit test
   4 // Author:      Vadim Zeitlin
   5 // Created:     2005-12-20 (extacted from strings.cpp)
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2004-2005 Vadim Zeitlin
   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 #include "wx/tokenzr.h"
  25
  26 // ----------------------------------------------------------------------------
  27 // test class
  28 // ----------------------------------------------------------------------------
  29
  30 class TokenizerTestCase : public CppUnit::TestCase
  31 {
  32 public:
  33     TokenizerTestCase() { }
  34
  35 private:
  36     CPPUNIT_TEST_SUITE( TokenizerTestCase );
  37         CPPUNIT_TEST( GetCount );
  38         CPPUNIT_TEST( GetPosition );
  39         CPPUNIT_TEST( StrtokCompat );
  40     CPPUNIT_TEST_SUITE_END();
  41
  42     void GetCount();
  43     void GetPosition();
  44     void StrtokCompat();
  45
  46     DECLARE_NO_COPY_CLASS(TokenizerTestCase)
  47 };
  48
  49 // register in the unnamed registry so that these tests are run by default
  50 CPPUNIT_TEST_SUITE_REGISTRATION( TokenizerTestCase );
  51
  52 // also include in it's own registry so that these tests can be run alone
  53 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( TokenizerTestCase, "TokenizerTestCase" );
  54
  55 // ----------------------------------------------------------------------------
  56 // test data
  57 // ----------------------------------------------------------------------------
  58
  59 static const struct TokenizerTestData
  60 {
  61     // the string to tokenize
  62     const wxChar *str;
  63
  64     // the delimiters to use
  65     const wxChar *delims;
  66
  67     // the tokenizer mode
  68     wxStringTokenizerMode mode;
  69
  70     // expected number of tokens
  71     size_t count;
  72 }
  73 gs_testData[] =
  74 {
  75     { _T(""),                   _T(" "),              wxTOKEN_DEFAULT,       0 },
  76     { _T(""),                   _T(" "),              wxTOKEN_RET_EMPTY,     0 },
  77     { _T(""),                   _T(" "),              wxTOKEN_RET_EMPTY_ALL, 0 },
  78     { _T(""),                   _T(" "),              wxTOKEN_RET_DELIMS,    0 },
  79     { _T(":"),                  _T(":"),              wxTOKEN_RET_EMPTY,     1 },
  80     { _T(":"),                  _T(":"),              wxTOKEN_RET_DELIMS,    1 },
  81     { _T(":"),                  _T(":"),              wxTOKEN_RET_EMPTY_ALL, 2 },
  82     { _T("::"),                 _T(":"),              wxTOKEN_RET_EMPTY,     1 },
  83     { _T("::"),                 _T(":"),              wxTOKEN_RET_DELIMS,    1 },
  84     { _T("::"),                 _T(":"),              wxTOKEN_RET_EMPTY_ALL, 3 },
  85
  86     { _T("Hello, world"),       _T(" "),              wxTOKEN_DEFAULT,       2 },
  87     { _T("Hello,   world  "),   _T(" "),              wxTOKEN_DEFAULT,       2 },
  88     { _T("Hello, world"),       _T(","),              wxTOKEN_DEFAULT,       2 },
  89     { _T("Hello, world!"),      _T(",!"),             wxTOKEN_DEFAULT,       2 },
  90     { _T("Hello,, world!"),     _T(",!"),             wxTOKEN_DEFAULT,       3 },
  91     { _T("Hello,, world!"),     _T(",!"),             wxTOKEN_STRTOK,        2 },
  92     { _T("Hello, world!"),      _T(",!"),             wxTOKEN_RET_EMPTY_ALL, 3 },
  93
  94     { _T("username:password:uid:gid:gecos:home:shell"),
  95                                 _T(":"),              wxTOKEN_DEFAULT,       7 },
  96
  97     { _T("1:2::3:"),            _T(":"),              wxTOKEN_DEFAULT,       4 },
  98     { _T("1:2::3:"),            _T(":"),              wxTOKEN_RET_EMPTY,     4 },
  99     { _T("1:2::3:"),            _T(":"),              wxTOKEN_RET_EMPTY_ALL, 5 },
 100     { _T("1:2::3:"),            _T(":"),              wxTOKEN_RET_DELIMS,    4 },
 101     { _T("1:2::3:"),            _T(":"),              wxTOKEN_STRTOK,        3 },
 102
 103     { _T("1:2::3::"),           _T(":"),              wxTOKEN_DEFAULT,       4 },
 104     { _T("1:2::3::"),           _T(":"),              wxTOKEN_RET_EMPTY,     4 },
 105     { _T("1:2::3::"),           _T(":"),              wxTOKEN_RET_EMPTY_ALL, 6 },
 106     { _T("1:2::3::"),           _T(":"),              wxTOKEN_RET_DELIMS,    4 },
 107     { _T("1:2::3::"),           _T(":"),              wxTOKEN_STRTOK,        3 },
 108
 109     { _T("1 \t3\t4  6   "),     wxDEFAULT_DELIMITERS, wxTOKEN_DEFAULT,       4 },
 110     { _T("1 \t3\t4  6   "),     wxDEFAULT_DELIMITERS, wxTOKEN_STRTOK,        4 },
 111     { _T("1 \t3\t4  6   "),     wxDEFAULT_DELIMITERS, wxTOKEN_RET_EMPTY,     6 },
 112     { _T("1 \t3\t4  6   "),     wxDEFAULT_DELIMITERS, wxTOKEN_RET_EMPTY_ALL, 9 },
 113
 114     { _T("01/02/99"),           _T("/-"),             wxTOKEN_DEFAULT,       3 },
 115     { _T("01-02/99"),           _T("/-"),             wxTOKEN_RET_DELIMS,    3 },
 116 };
 117
 118 // helper function returning the string showing the index for which the test
 119 // fails in the diagnostic message
 120 static std::string Nth(size_t n)
 121 {
 122     return wxString::Format(_T("for loop index %lu"), (unsigned long)n).mb_str();
 123 }
 124
 125 // ----------------------------------------------------------------------------
 126 // the tests
 127 // ----------------------------------------------------------------------------
 128
 129 void TokenizerTestCase::GetCount()
 130 {
 131     for ( size_t n = 0; n < WXSIZEOF(gs_testData); n++ )
 132     {
 133         const TokenizerTestData& ttd = gs_testData[n];
 134
 135         wxStringTokenizer tkz(ttd.str, ttd.delims, ttd.mode);
 136         CPPUNIT_ASSERT_EQUAL_MESSAGE( Nth(n), ttd.count, tkz.CountTokens() );
 137
 138         size_t count = 0;
 139         while ( tkz.HasMoreTokens() )
 140         {
 141             tkz.GetNextToken();
 142             count++;
 143         }
 144
 145         CPPUNIT_ASSERT_EQUAL_MESSAGE( Nth(n), ttd.count, count );
 146     }
 147 }
 148
 149 // call this with the string to tokenize, delimeters to use and the expected
 150 // positions (i.e. results of GetPosition()) after each GetNextToken() call,
 151 // terminate positions with 0
 152 static void
 153 DoTestGetPosition(const wxChar *s, const wxChar *delims, int pos, ...)
 154 {
 155     wxStringTokenizer tkz(s, delims);
 156
 157     CPPUNIT_ASSERT_EQUAL( (size_t)0, tkz.GetPosition() );
 158
 159     va_list ap;
 160     va_start(ap, pos);
 161
 162     for ( ;; )
 163     {
 164         if ( !pos )
 165         {
 166             CPPUNIT_ASSERT( !tkz.HasMoreTokens() );
 167             break;
 168         }
 169
 170         tkz.GetNextToken();
 171
 172         CPPUNIT_ASSERT_EQUAL( (size_t)pos, tkz.GetPosition() );
 173
 174         pos = va_arg(ap, int);
 175     }
 176
 177     va_end(ap);
 178 }
 179
 180 void TokenizerTestCase::GetPosition()
 181 {
 182     DoTestGetPosition(_T("foo"), _T("_"), 3, 0);
 183     DoTestGetPosition(_T("foo_bar"), _T("_"), 4, 7, 0);
 184     DoTestGetPosition(_T("foo_bar_"), _T("_"), 4, 8, 0);
 185 }
 186
 187 void TokenizerTestCase::StrtokCompat()
 188 {
 189     for ( size_t n = 0; n < WXSIZEOF(gs_testData); n++ )
 190     {
 191         const TokenizerTestData& ttd = gs_testData[n];
 192         if ( ttd.mode != wxTOKEN_STRTOK )
 193             continue;
 194
 195 #if wxUSE_UNICODE
 196         wxWCharBuffer
 197 #else
 198         wxCharBuffer
 199 #endif
 200             buf(ttd.str);
 201         wxChar *last;
 202         wxChar *s = wxStrtok(buf.data(), ttd.delims, &last);
 203
 204         wxStringTokenizer tkz(ttd.str, ttd.delims, ttd.mode);
 205         while ( tkz.HasMoreTokens() )
 206         {
 207             CPPUNIT_ASSERT_EQUAL( wxString(s), tkz.GetNextToken() );
 208             s = wxStrtok(NULL, ttd.delims, &last);
 209         }
 210     }
 211 }
 212
 213