/*

   common.h - common test routines

   This file is part of the nss-pam-ldapd library.

   Copyright (C) 2011, 2012 Arthur de Jong

   This library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   This library 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with this library; if not, write to the Free Software

   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

   02110-1301 USA

*/

#ifndef TEST__COMMON_H

#define TEST__COMMON_H 1

#include <errno.h>

#ifndef __ASSERT_FUNCTION

#define __ASSERT_FUNCTION ""

#endif /* not __ASSERT_FUNCTION */

/* try to find the actual assert function */

#ifndef HAVE___ASSERT_FAIL

/* for Solaris: */

#ifdef sun

#define __assert_fail(assertion, file, line, function)                      \

  __assert(assertion, file, line)

#endif

/* for FreeBSD: */

#ifdef __FreeBSD__

#define __assert_fail(assertion, file, line, function)                      \

  __assert(assertion, file, line, function)

#endif

#endif /* not HAVE___ASSERT_FAIL */

/* extra assertion function that epxects both strings to be the same

   (special macro because strcmp() can be a macro that turns ugly in assert) */

#define assertstreq(str1, str2)                                             \

  (assertstreq_impl(str1, str2,                                             \

                    "strcmp(" __STRING(str1) ", " __STRING(str2) ") == 0",  \

                    __FILE__, __LINE__, __ASSERT_FUNCTION))

static inline void assertstreq_impl(const char *str1, const char *str2,

                                    const char *assertion, const char *file,

                                    int line, const char *function)

{

  if (strcmp(str1, str2) != 0)

    __assert_fail(assertion, file, line, function);

}

/* extra assertion function that expects expr to be valid and prints an

   error message that include errno otherwise */

#define assertok(expr)                                                      \

  ((expr)                                                                   \

   ? (void) (0)                                                             \

   : __assertok_fail(__STRING(expr), __FILE__, __LINE__, __ASSERT_FUNCTION))

static inline void __assertok_fail(const char *expr, const char *file,

                                   int line, const char *function)

{

  char msg[120];

  snprintf(msg, sizeof(msg), "%s (errno=\"%s\")", expr, strerror(errno));

  __assert_fail(msg, file, line, function);

}

#endif /* not TEST__COMMON_H */