TestCommDevice.c

 
#include <stdio.h>
 
#include <winpr/comm.h>
#include <winpr/tchar.h>
 
static int test_CommDevice(LPCTSTR lpDeviceName, BOOL expectedResult)
{
  TCHAR lpTargetPath[MAX_PATH] = WINPR_C_ARRAY_INIT;
 
  BOOL result = DefineCommDevice(lpDeviceName, _T("/dev/test"));
  if ((!expectedResult && result) || (expectedResult && !result)) /* logical XOR */
  {
    _tprintf(_T("DefineCommDevice failure: device name: %s, expected result: %s, result: %s\n"),
             lpDeviceName, (expectedResult ? "TRUE" : "FALSE"), (result ? "TRUE" : "FALSE"));
 
    return FALSE;
  }
 
  result = IsCommDevice(lpDeviceName);
  if ((!expectedResult && result) || (expectedResult && !result)) /* logical XOR */
  {
    _tprintf(_T("IsCommDevice failure: device name: %s, expected result: %s, result: %s\n"),
             lpDeviceName, (expectedResult ? "TRUE" : "FALSE"), (result ? "TRUE" : "FALSE"));
 
    return FALSE;
  }
 
  const size_t tclen = QueryCommDevice(lpDeviceName, lpTargetPath, MAX_PATH);
  if (expectedResult)
  {
    const size_t tlen = _tcsnlen(lpTargetPath, ARRAYSIZE(lpTargetPath) - 1);
    if (tclen <= tlen) /* at least 2 more TCHAR are expected */
    {
      _tprintf(_T("QueryCommDevice failure: didn't find the device name: %s\n"),
               lpDeviceName);
      return FALSE;
    }
 
    if (_tcsncmp(_T("/dev/test"), lpTargetPath, ARRAYSIZE(lpTargetPath)) != 0)
    {
      _tprintf(
          _T("QueryCommDevice failure: device name: %s, expected result: %s, result: %s\n"),
          lpDeviceName, _T("/dev/test"), lpTargetPath);
 
      return FALSE;
    }
 
    if ((tlen >= (ARRAYSIZE(lpTargetPath) - 1)) || (lpTargetPath[tlen + 1] != 0))
    {
      _tprintf(
          _T("QueryCommDevice failure: device name: %s, the second nullptr character is ")
          _T("missing at the end of the buffer\n"),
          lpDeviceName);
      return FALSE;
    }
  }
  else
  {
    if (tclen > 0)
    {
      _tprintf(_T("QueryCommDevice failure: device name: %s, expected result: <none>, ")
               _T("result: %") _T(PRIuz) _T(" %s\n"),
               lpDeviceName, tclen, lpTargetPath);
 
      return FALSE;
    }
  }
 
  return TRUE;
}
 
int TestCommDevice(int argc, char* argv[])
{
  if (!test_CommDevice(_T("COM0"), FALSE))
    return EXIT_FAILURE;
 
  if (!test_CommDevice(_T("COM1"), TRUE))
    return EXIT_FAILURE;
 
  if (!test_CommDevice(_T("COM1"), TRUE))
    return EXIT_FAILURE;
 
  if (!test_CommDevice(_T("COM10"), FALSE))
    return EXIT_FAILURE;
 
  if (!test_CommDevice(_T("\\\\.\\COM5"), TRUE))
    return EXIT_FAILURE;
 
  if (!test_CommDevice(_T("\\\\.\\COM10"), TRUE))
    return EXIT_FAILURE;
 
  if (!test_CommDevice(_T("\\\\.COM10"), FALSE))
    return EXIT_FAILURE;
 
  return 0;
}