first phase of transition to unified Unicode build:

1. changed c_str() to return wxCStrData (implicitly convertible to wxChar*)
2. added template type-safe wrappers for vararg functions
3. added wxUniChar class representing single Unicode character
4. changed wxString::operator[] and wxString::iterator to return wxUniChar


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@44865 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

tests/strings/vararg.cpp

@@ -0,0 +1,67 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        tests/strings/vararg.cpp
+// Purpose:     Test for wx vararg look-alike macros
+// Author:      Vaclav Slavik
+// Created:     2007-02-20
+// RCS-ID:      $Id$
+// Copyright:   (c) 2007 REA Elektronik GmbH
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#include "testprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#ifndef WX_PRECOMP
+    #include "wx/wx.h"
+#endif // WX_PRECOMP
+
+#include "wx/string.h"
+
+// ----------------------------------------------------------------------------
+// test class
+// ----------------------------------------------------------------------------
+
+class VarArgTestCase : public CppUnit::TestCase
+{
+public:
+    VarArgTestCase() {}
+
+private:
+    CPPUNIT_TEST_SUITE( VarArgTestCase );
+        CPPUNIT_TEST( StringPrintf );
+    CPPUNIT_TEST_SUITE_END();
+
+    void StringPrintf();
+
+    DECLARE_NO_COPY_CLASS(VarArgTestCase)
+};
+
+// register in the unnamed registry so that these tests are run by default
+CPPUNIT_TEST_SUITE_REGISTRATION( VarArgTestCase );
+
+// also include in it's own registry so that these tests can be run alone
+CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( VarArgTestCase, "VarArgTestCase" );
+
+void VarArgTestCase::StringPrintf()
+{
+    wxString s, s2;
+
+    s.Printf("%s %i", "foo", 42);
+    CPPUNIT_ASSERT( s == "foo 42" );
+    s.Printf("%s %s %i", _T("bar"), "=", 11);
+    CPPUNIT_ASSERT( s == "bar = 11" );
+    s2.Printf("(%s)", s.c_str());
+    CPPUNIT_ASSERT( s2 == "(bar = 11)" );
+    s2.Printf(_T("[%s](%s)"), s.c_str(), "str");
+    CPPUNIT_ASSERT( s2 == "[bar = 11](str)" );
+
+    s2.Printf(_T("[%s](%s)"), s, "str");
+    CPPUNIT_ASSERT( s2 == "[bar = 11](str)" );
+}