TestPathCchAppend.c

 
#include <stdio.h>
#include <winpr/crt.h>
#include <winpr/path.h>
#include <winpr/tchar.h>
#include <winpr/winpr.h>
 
static const TCHAR testBasePathBackslash[] = _T("C:\\Program Files\\");
static const TCHAR testBasePathNoBackslash[] = _T("C:\\Program Files");
static const TCHAR testMorePathBackslash[] = _T("\\Microsoft Visual Studio 11.0");
static const TCHAR testMorePathNoBackslash[] = _T("Microsoft Visual Studio 11.0");
static const TCHAR testPathOut[] = _T("C:\\Program Files\\Microsoft Visual Studio 11.0");
 
int TestPathCchAppend(int argc, char* argv[])
{
  HRESULT status = 0;
  TCHAR Path[PATHCCH_MAX_CCH];
 
  WINPR_UNUSED(argc);
  WINPR_UNUSED(argv);
 
  /* Base Path: Backslash, More Path: No Backslash */
 
  _tcsncpy(Path, testBasePathBackslash, ARRAYSIZE(Path));
 
  status = PathCchAppend(Path, PATHCCH_MAX_CCH, testMorePathNoBackslash);
 
  if (status != S_OK)
  {
    _tprintf(_T("PathCchAppend status: 0x%08") _T(PRIX32) _T("\n"), status);
    return -1;
  }
 
  if (_tcsncmp(Path, testPathOut, ARRAYSIZE(Path)) != 0)
  {
    _tprintf(_T("Path Mismatch: Actual: %s, Expected: %s\n"), Path, testPathOut);
    return -1;
  }
 
  /* Base Path: Backslash, More Path: Backslash */
 
  _tcsncpy(Path, testBasePathBackslash, ARRAYSIZE(Path));
 
  status = PathCchAppend(Path, PATHCCH_MAX_CCH, testMorePathBackslash);
 
  if (status != S_OK)
  {
    _tprintf(_T("PathCchAppend status: 0x%08") _T(PRIX32) _T("\n"), status);
    return -1;
  }
 
  if (_tcsncmp(Path, testPathOut, ARRAYSIZE(Path)) != 0)
  {
    _tprintf(_T("Path Mismatch: Actual: %s, Expected: %s\n"), Path, testPathOut);
    return -1;
  }
 
  /* Base Path: No Backslash, More Path: Backslash */
 
  _tcsncpy(Path, testBasePathNoBackslash, ARRAYSIZE(Path));
 
  status = PathCchAppend(Path, PATHCCH_MAX_CCH, testMorePathBackslash);
 
  if (status != S_OK)
  {
    _tprintf(_T("PathCchAppend status: 0x%08") _T(PRIX32) _T("\n"), status);
    return -1;
  }
 
  if (_tcsncmp(Path, testPathOut, ARRAYSIZE(Path)) != 0)
  {
    _tprintf(_T("Path Mismatch: Actual: %s, Expected: %s\n"), Path, testPathOut);
    return -1;
  }
 
  /* Base Path: No Backslash, More Path: No Backslash */
 
  _tcsncpy(Path, testBasePathNoBackslash, ARRAYSIZE(Path));
 
  status = PathCchAppend(Path, PATHCCH_MAX_CCH, testMorePathNoBackslash);
 
  if (status != S_OK)
  {
    _tprintf(_T("PathCchAppend status: 0x%08") _T(PRIX32) _T("\n"), status);
    return -1;
  }
 
  if (_tcsncmp(Path, testPathOut, ARRAYSIZE(Path)) != 0)
  {
    _tprintf(_T("Path Mismatch: Actual: %s, Expected: %s\n"), Path, testPathOut);
    return -1;
  }
 
  /* According to msdn a nullptr Path is an invalid argument */
  status = PathCchAppend(nullptr, PATHCCH_MAX_CCH, testMorePathNoBackslash);
  if (status != E_INVALIDARG)
  {
    _tprintf(_T("PathCchAppend with nullptr path unexpectedly returned status: 0x%08") _T(
                 PRIX32) _T("\n"),
             status);
    return -1;
  }
 
  /* According to msdn a nullptr pszMore is an invalid argument (although optional !?)
   * Testing the real thing on windows reveals that it returns S_OK...
   */
  _tcsncpy(Path, testBasePathNoBackslash, ARRAYSIZE(Path));
  status = PathCchAppend(Path, PATHCCH_MAX_CCH, nullptr);
  if (status != S_OK)
  {
    _tprintf(_T("PathCchAppend with nullptr pszMore unexpectedly returned status: 0x%08") _T(
                 PRIX32) _T("\n"),
             status);
    return -1;
  }
 
  /* According to msdn cchPath must be > 0 and <= PATHCCH_MAX_CCH */
  _tcsncpy(Path, testBasePathNoBackslash, ARRAYSIZE(Path));
  status = PathCchAppend(Path, 0, testMorePathNoBackslash);
  if (status != E_INVALIDARG)
  {
    _tprintf(_T("PathCchAppend with cchPath value 0 unexpectedly returned status: 0x%08") _T(
                 PRIX32) _T("\n"),
             status);
    return -1;
  }
  _tcsncpy(Path, testBasePathNoBackslash, ARRAYSIZE(Path));
  status = PathCchAppend(Path, PATHCCH_MAX_CCH + 1, testMorePathNoBackslash);
  if (status != E_INVALIDARG)
  {
    _tprintf(_T("PathCchAppend with cchPath value > PATHCCH_MAX_CCH unexpectedly returned ")
             _T("status: 0x%08") _T(PRIX32) _T("\n"),
             status);
    return -1;
  }
 
  /* Resulting file must not exceed PATHCCH_MAX_CCH */
 
  for (size_t i = 0; i < PATHCCH_MAX_CCH - 1; i++)
    Path[i] = _T('X');
 
  Path[PATHCCH_MAX_CCH - 1] = 0;
 
  status = PathCchAppend(Path, PATHCCH_MAX_CCH, _T("\\This cannot be appended to Path"));
  if (SUCCEEDED(status))
  {
    _tprintf(_T("PathCchAppend unexpectedly succeeded with status: 0x%08") _T(PRIX32) _T("\n"),
             status);
    return -1;
  }
 
  return 0;
}