Comparing wide strings

[Egg Ware]

Using Visual Studio 2005 with MFC.

I downloaded the latest version and compiled it with the compiler setting for Unicode, I then created a test executable and linked the cppunit library.

I created a test where I want to compare 2 strings, e.g.

-----------------------
void CReverseSortStrings_tests::long_strings_first()
{
    prss->doSort(ppa); // Sort a list of CStrings

    // Get the value to compare (the actual)
    CString* psActual = (CString*)ppa->GetAt(0);

    CPPUNIT_ASSERT_EQUAL_MESSAGE(std::string("Longest string is first") , CString(L"E.abcde") , *psActual); // << ;
}
-----------------------

I am expecting the test to fail and print out the contents of the strings but I get numbers, e.g.

-----------------------
.\CReverseSortStrings_tests.cpp(70) : error : Assertion
Test name: CReverseSortStrings_tests::long_strings_first
equality assertion failed
- Expected: 00BCAB20
- Actual  : 00BCA9D8
- Longest string is first
-----------------------

I tried using std:wstring string instead of CString but I get compiler errors, e.g.

1>{project}\cppunit\cppunit-1.12.1\include\cppunit/TestAssert.h(49) : error C2679: binary '<<' : no operator found which takes a right-hand operand of type 'const std::wstring' (or there is no acceptable conversion)

Does CppUnit work with Unicode correctly or am I using the wrong macros to compare Unicode (wide) strings?

Any help would be greatly appreciated.

//*eggware

[Anderson Ito]

I am using Visual C++ under MFC and we ran into the same problem.

I did a workaround that is:

a) extend CPPUnit to support comparison between 2 const char*

b) created a new macro: for example CPPUNIT_ASSERT_MFC_STRING_EQUAL and CPPUNIT_ASSERT_MFC_STRING_EQUAL_MESSAGE

c) In my tests when I need to compare two CString objects I use:

CString str1;
CString str2;

CPPUNIT_ASSERT_MFC_STRING_EQUAL(str1.GetBuffer(str1.GetLength()), str2.GetBuffer(str2.GetLength()));

or

CPPUNIT_ASSERT_MFC_STRING_EQUAL((LPCTSTR) str1, (LPCTSTR) str2);

This might solving the issue regarding the memory address number of the 2 strings.

Hope this helps.

Anderson.