tests/strings/vararg.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/strings/vararg.cpp
   3 // Purpose:     Test for wx vararg look-alike macros
   4 // Author:      Vaclav Slavik
   5 // Created:     2007-02-20
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2007 REA Elektronik GmbH
   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/string.h"
  26
  27 // ----------------------------------------------------------------------------
  28 // test class
  29 // ----------------------------------------------------------------------------
  30
  31 class VarArgTestCase : public CppUnit::TestCase
  32 {
  33 public:
  34     VarArgTestCase() {}
  35
  36 private:
  37     CPPUNIT_TEST_SUITE( VarArgTestCase );
  38         CPPUNIT_TEST( StringPrintf );
  39         CPPUNIT_TEST( CharPrintf );
  40 #if wxUSE_STD_STRING
  41         CPPUNIT_TEST( StdString );
  42 #endif
  43         CPPUNIT_TEST( Sscanf );
  44         CPPUNIT_TEST( RepeatedPrintf );
  45     CPPUNIT_TEST_SUITE_END();
  46
  47     void StringPrintf();
  48     void CharPrintf();
  49 #if wxUSE_STD_STRING
  50     void StdString();
  51 #endif
  52     void Sscanf();
  53     void RepeatedPrintf();
  54
  55     DECLARE_NO_COPY_CLASS(VarArgTestCase)
  56 };
  57
  58 // register in the unnamed registry so that these tests are run by default
  59 CPPUNIT_TEST_SUITE_REGISTRATION( VarArgTestCase );
  60
  61 // also include in it's own registry so that these tests can be run alone
  62 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( VarArgTestCase, "VarArgTestCase" );
  63
  64 void VarArgTestCase::StringPrintf()
  65 {
  66     wxString s, s2;
  67
  68     // test passing literals:
  69     s.Printf("%s %i", "foo", 42);
  70     CPPUNIT_ASSERT( s == "foo 42" );
  71     s.Printf("%s %s %i", _T("bar"), "=", 11);
  72
  73     // test passing c_str():
  74     CPPUNIT_ASSERT( s == "bar = 11" );
  75     s2.Printf("(%s)", s.c_str());
  76     CPPUNIT_ASSERT( s2 == "(bar = 11)" );
  77     s2.Printf(_T("[%s](%s)"), s.c_str(), "str");
  78     CPPUNIT_ASSERT( s2 == "[bar = 11](str)" );
  79
  80     s2.Printf("%s mailbox", wxString("Opening").c_str());
  81     CPPUNIT_ASSERT( s2 == "Opening mailbox" );
  82
  83     // test passing wxString directly:
  84     s2.Printf(_T("[%s](%s)"), s, "str");
  85     CPPUNIT_ASSERT( s2 == "[bar = 11](str)" );
  86
  87     // test passing wxCharBufferType<T>:
  88     s = "FooBar";
  89     s2.Printf(_T("(%s)"), s.mb_str());
  90     CPPUNIT_ASSERT( s2 == "(FooBar)" );
  91     s2.Printf(_T("value=%s;"), s.wc_str());
  92     CPPUNIT_ASSERT( s2 == "value=FooBar;" );
  93
  94     // this tests correct passing of wxCStrData constructed from string
  95     // literal:
  96     bool cond = true;
  97     s2.Printf(_T("foo %s"), !cond ? s.c_str() : _T("bar"));
  98 }
  99
 100 void VarArgTestCase::CharPrintf()
 101 {
 102     wxString foo("foo");
 103     wxString s;
 104
 105     // test using wchar_t:
 106     s.Printf("char=%c", L'c');
 107     CPPUNIT_ASSERT_EQUAL( "char=c", s );
 108
 109     // test wxUniCharRef:
 110     s.Printf("string[1] is %c", foo[1]);
 111     CPPUNIT_ASSERT_EQUAL( "string[1] is o", s );
 112
 113     // test char
 114     char c = 'z';
 115     s.Printf("%c to %c", 'a', c);
 116     CPPUNIT_ASSERT_EQUAL( "a to z", s );
 117
 118     // test char used as integer:
 119     #ifdef _MSC_VER
 120         #pragma warning(disable:4305) // truncation of constant value in VC6
 121         #pragma warning(disable:4309) // truncation of constant value
 122     #endif
 123     c = 240;
 124     #ifdef _MSC_VER
 125         #pragma warning(default:4305) // truncation of constant value in VC6
 126         #pragma warning(default:4309)
 127     #endif
 128     s.Printf("value is %i (int)", c);
 129     CPPUNIT_ASSERT_EQUAL( wxString("value is -16 (int)"), s );
 130
 131     unsigned char u = 240;
 132     s.Printf("value is %i (int)", u);
 133     CPPUNIT_ASSERT_EQUAL( "value is 240 (int)", s );
 134 }
 135
 136 #if wxUSE_STD_STRING
 137 void VarArgTestCase::StdString()
 138 {
 139     // test passing std::[w]string
 140     wxString s;
 141
 142     std::string mb("multi-byte");
 143     std::string wc("widechar");
 144
 145     s.Printf("string %s(%i).", mb, 1);
 146     CPPUNIT_ASSERT_EQUAL( "string multi-byte(1).", s );
 147
 148     s.Printf("string %s(%i).", wc, 2);
 149     CPPUNIT_ASSERT_EQUAL( "string widechar(2).", s );
 150 }
 151 #endif // wxUSE_STD_STRING
 152
 153 void VarArgTestCase::Sscanf()
 154 {
 155     int i = 0;
 156     char str[20];
 157     wchar_t wstr[20];
 158
 159     wxString input("42 test");
 160
 161     wxSscanf(input, "%d %s", &i, &str);
 162     CPPUNIT_ASSERT( i == 42 );
 163     CPPUNIT_ASSERT( wxStrcmp(str, "test") == 0 );
 164
 165     i = 0;
 166     wxSscanf(input, L"%d %s", &i, &wstr);
 167     CPPUNIT_ASSERT( i == 42 );
 168     CPPUNIT_ASSERT( wxStrcmp(wstr, "test") == 0 );
 169 }
 170
 171 void VarArgTestCase::RepeatedPrintf()
 172 {
 173     wxCharBuffer buffer(2);
 174     char *p = buffer.data();
 175     *p = 'h';
 176     p++;
 177     *p = 'i';
 178
 179     wxString s;
 180     s = wxString::Format("buffer %s, len %d", buffer, wxStrlen(buffer));
 181     CPPUNIT_ASSERT_EQUAL("buffer hi, len 2", s);
 182
 183     s = wxString::Format("buffer %s, len %d", buffer, wxStrlen(buffer));
 184     CPPUNIT_ASSERT_EQUAL("buffer hi, len 2", s);
 185 }