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/*
     This file is part of GNUnet.
     Copyright (C) 2003, 2004, 2005, 2006, 2009 GNUnet e.V.

     GNUnet is free software: you can redistribute it and/or modify it
     under the terms of the GNU Affero General Public License as published
     by the Free Software Foundation, either version 3 of the License,
     or (at your option) any later version.

     GNUnet is distributed in the hope that it will be useful, but
     WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Affero General Public License for more details.
    
     You should have received a copy of the GNU Affero General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.

     SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
 * @file util/test_getopt.c
 * @brief testcase for util/getopt.c
 */
#include "platform.h"
#include "gnunet_util_lib.h"


static int
testMinimal ()
{
  char *const emptyargv[] = {"test", NULL};
  const struct GNUNET_GETOPT_CommandLineOption emptyoptionlist[] = {
    GNUNET_GETOPT_OPTION_END};

  if (1 != GNUNET_GETOPT_run ("test", emptyoptionlist, 1, emptyargv))
    return 1;

  return 0;
}


static int
testVerbose ()
{
  char *const myargv[] = {"test", "-V", "-V", "more", NULL};
  unsigned int vflags = 0;

  const struct GNUNET_GETOPT_CommandLineOption verboseoptionlist[] =
    {GNUNET_GETOPT_option_verbose (&vflags), GNUNET_GETOPT_OPTION_END};

  if (3 != GNUNET_GETOPT_run ("test", verboseoptionlist, 4, myargv))
  {
    GNUNET_break (0);
    return 1;
  }
  if (vflags != 2)
  {
    GNUNET_break (0);
    return 1;
  }
  return 0;
}


static int
testVersion ()
{
  char *const myargv[] = {"test_getopt", "-v", NULL};
  const struct GNUNET_GETOPT_CommandLineOption versionoptionlist[] =
    {GNUNET_GETOPT_option_version (PACKAGE_VERSION " " VCS_VERSION),
     GNUNET_GETOPT_OPTION_END};

  if (0 != GNUNET_GETOPT_run ("test_getopt", versionoptionlist, 2, myargv))
  {
    GNUNET_break (0);
    return 1;
  }
  return 0;
}


static int
testAbout ()
{
  char *const myargv[] = {"test_getopt", "-h", NULL};
  const struct GNUNET_GETOPT_CommandLineOption aboutoptionlist[] =
    {GNUNET_GETOPT_option_help ("Testing"), GNUNET_GETOPT_OPTION_END};

  if (0 != GNUNET_GETOPT_run ("test_getopt", aboutoptionlist, 2, myargv))
  {
    GNUNET_break (0);
    return 1;
  }
  return 0;
}


static int
testLogOpts ()
{
  char *const myargv[] =
    {"test_getopt", "-l", "filename", "-L", "WARNING", NULL};
  char *level = GNUNET_strdup ("stuff");
  char *fn = NULL;

  const struct GNUNET_GETOPT_CommandLineOption logoptionlist[] =
    {GNUNET_GETOPT_option_logfile (&fn),
     GNUNET_GETOPT_option_loglevel (&level),
     GNUNET_GETOPT_OPTION_END};

  if (5 != GNUNET_GETOPT_run ("test_getopt", logoptionlist, 5, myargv))
  {
    GNUNET_break (0);
    return 1;
  }
  GNUNET_assert (NULL != fn);
  if ((0 != strcmp (level, "WARNING")) || (NULL == strstr (fn, "/filename")))
  {
    GNUNET_break (0);
    GNUNET_free (level);
    GNUNET_free (fn);
    return 1;
  }
  GNUNET_free (level);
  GNUNET_free (fn);
  return 0;
}


static int
testFlagNum ()
{
  char *const myargv[] = {"test_getopt", "-f", "-n", "42", "-N", "42", NULL};
  int flag = 0;
  unsigned int num = 0;
  unsigned long long lnum = 0;

  const struct GNUNET_GETOPT_CommandLineOption logoptionlist[] =
    {GNUNET_GETOPT_option_flag ('f', "--flag", "helptext", &flag),
     GNUNET_GETOPT_option_uint ('n', "--num", "ARG", "helptext", &num),
     GNUNET_GETOPT_option_ulong ('N', "--lnum", "ARG", "helptext", &lnum),
     GNUNET_GETOPT_OPTION_END};

  if (6 != GNUNET_GETOPT_run ("test_getopt", logoptionlist, 6, myargv))
  {
    GNUNET_break (0);
    return 1;
  }
  if ((1 != flag) || (42 != num) || (42 != lnum))
  {
    GNUNET_break (0);
    return 1;
  }
  return 0;
}


int
main (int argc, char *argv[])
{
  int errCnt = 0;

  GNUNET_log_setup ("test_getopt", "WARNING", NULL);
  /* suppress output from -h, -v options */
#ifndef MINGW
  GNUNET_break (0 == close (1));
#endif
  if (0 != testMinimal ())
    errCnt++;
  if (0 != testVerbose ())
    errCnt++;
  if (0 != testVersion ())
    errCnt++;
  if (0 != testAbout ())
    errCnt++;
  if (0 != testLogOpts ())
    errCnt++;
  if (0 != testFlagNum ())
    errCnt++;
  return errCnt;
}