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("Hello, world"),       _T(" "),              wxTOKEN_DEFAULT      , 2 },
  77     { _T("Hello,   world  "),   _T(" "),              wxTOKEN_DEFAULT      , 2 },
  78     { _T("Hello, world"),       _T(","),              wxTOKEN_DEFAULT      , 2 },
  79     { _T("Hello, world!"),      _T(",!"),             wxTOKEN_DEFAULT      , 2 },
  80     { _T("Hello,, world!"),     _T(",!"),             wxTOKEN_DEFAULT      , 3 },
  81     { _T("Hello,, world!"),     _T(",!"),             wxTOKEN_STRTOK       , 2 },
  82     { _T("Hello, world!"),      _T(",!"),             wxTOKEN_RET_EMPTY_ALL, 3 },
  83     { _T("username:password:uid:gid:gecos:home:shell"),
  84                                 _T(":"),              wxTOKEN_DEFAULT      , 7 },
  85     { _T("1 \t3\t4  6   "),     wxDEFAULT_DELIMITERS, wxTOKEN_DEFAULT      , 4 },
  86     { _T("1 \t3\t4  6   "),     wxDEFAULT_DELIMITERS, wxTOKEN_RET_EMPTY    , 6 },
  87     { _T("1 \t3\t4  6   "),     wxDEFAULT_DELIMITERS, wxTOKEN_RET_EMPTY_ALL, 9 },
  88     { _T("01/02/99"),           _T("/-"),             wxTOKEN_DEFAULT      , 3 },
  89     { _T("01-02/99"),           _T("/-"),             wxTOKEN_RET_DELIMS   , 3 },
  90 };
  91
  92 // ----------------------------------------------------------------------------
  93 // the tests
  94 // ----------------------------------------------------------------------------
  95
  96 void TokenizerTestCase::GetCount()
  97 {
  98     for ( size_t n = 0; n < WXSIZEOF(gs_testData); n++ )
  99     {
 100         const TokenizerTestData& ttd = gs_testData[n];
 101
 102         wxStringTokenizer tkz(ttd.str, ttd.delims, ttd.mode);
 103         CPPUNIT_ASSERT( tkz.CountTokens() == ttd.count );
 104
 105         size_t count = 0;
 106         while ( tkz.HasMoreTokens() )
 107         {
 108             tkz.GetNextToken();
 109             count++;
 110         }
 111
 112         CPPUNIT_ASSERT_EQUAL( ttd.count, count );
 113     }
 114 }
 115
 116 // call this with the string to tokenize, delimeters to use and the expected
 117 // positions (i.e. results of GetPosition()) after each GetNextToken() call,
 118 // terminate positions with 0
 119 static void
 120 DoTestGetPosition(const wxChar *s, const wxChar *delims, int pos, ...)
 121 {
 122     wxStringTokenizer tkz(s, delims);
 123
 124     CPPUNIT_ASSERT_EQUAL( (size_t)0, tkz.GetPosition() );
 125
 126     va_list ap;
 127     va_start(ap, pos);
 128
 129     for ( ;; )
 130     {
 131         if ( !pos )
 132         {
 133             CPPUNIT_ASSERT( !tkz.HasMoreTokens() );
 134             break;
 135         }
 136
 137         tkz.GetNextToken();
 138
 139         CPPUNIT_ASSERT_EQUAL( (size_t)pos, tkz.GetPosition() );
 140
 141         pos = va_arg(ap, int);
 142     }
 143
 144     va_end(ap);
 145 }
 146
 147 void TokenizerTestCase::GetPosition()
 148 {
 149     DoTestGetPosition(_T("foo"), _T("_"), 3, 0);
 150     DoTestGetPosition(_T("foo_bar"), _T("_"), 4, 7, 0);
 151     DoTestGetPosition(_T("foo_bar_"), _T("_"), 4, 8, 0);
 152 }
 153
 154 void TokenizerTestCase::StrtokCompat()
 155 {
 156     for ( size_t n = 0; n < WXSIZEOF(gs_testData); n++ )
 157     {
 158         const TokenizerTestData& ttd = gs_testData[n];
 159         if ( ttd.mode != wxTOKEN_STRTOK )
 160             continue;
 161
 162         wxCharBuffer buf(ttd.str);
 163         wxChar *last;
 164         wxChar *s = wxStrtok(buf.data(), ttd.delims, &last);
 165
 166         wxStringTokenizer tkz(ttd.str, ttd.delims, ttd.mode);
 167         while ( tkz.HasMoreTokens() )
 168         {
 169             CPPUNIT_ASSERT_EQUAL( wxString(s), tkz.GetNextToken() );
 170             s = wxStrtok(NULL, ttd.delims, &last);
 171         }
 172     }
 173 }
 174
 175