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Add unit tests for openpam_straddch(3).

main
Dag-Erling Smørgrav 1 month ago
parent
commit
f1871a7d9f
  1. 7
      t/.gitignore
  2. 1
      t/Makefile.am
  3. 184
      t/t_openpam_straddch.c

7
t/.gitignore

@ -1,10 +1,7 @@
/t_*.trs
/t_openpam_ctype
/t_openpam_ctype.trs
/t_openpam_dispatch
/t_openpam_dispatch.trs
/t_openpam_readlinev
/t_openpam_readlinev.trs
/t_openpam_readword
/t_openpam_readword.trs
/t_openpam_straddch
/t_pam_env
/t_pam_env.trs

1
t/Makefile.am

@ -12,6 +12,7 @@ TESTS += t_openpam_ctype
TESTS += t_openpam_dispatch
TESTS += t_openpam_readword
TESTS += t_openpam_readlinev
TESTS += t_openpam_straddch
TESTS += t_pam_env
check_PROGRAMS = $(TESTS)

184
t/t_openpam_straddch.c

@ -0,0 +1,184 @@
/*-
* Copyright (c) 2021 Dag-Erling Smørgrav
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <sys/types.h>
#include <errno.h>
#include <stdint.h>
#include <stdlib.h>
#include <cryb/test.h>
#include <security/pam_appl.h>
#include "openpam_impl.h"
static int
t_straddch_empty(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
{
char *str;
size_t size, len;
int ret;
str = NULL;
size = len = SIZE_MAX;
ret = t_is_zero_i(openpam_straddch(&str, &size, &len, '\0'));
ret &= t_is_not_null(str);
ret &= t_is_not_zero_sz(size);
ret &= t_is_zero_sz(len);
free(str);
return ret;
}
static int
t_straddch_alloc_fail(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
{
char *str;
size_t size, len;
int ret;
str = NULL;
size = len = SIZE_MAX;
errno = 0;
t_malloc_fail = 1;
ret = t_compare_i(-1, openpam_straddch(&str, &size, &len, '\0'));
t_malloc_fail = 0;
ret &= t_compare_i(ENOMEM, errno);
ret &= t_is_null(str);
ret &= t_compare_sz(SIZE_MAX, size);
ret &= t_compare_sz(SIZE_MAX, len);
free(str);
return ret;
}
static int
t_straddch_realloc_fail(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
{
char *str, *_str;
size_t size, _size, len, _len;
int i, ret;
// start with an empty string
str = NULL;
size = len = SIZE_MAX;
ret = t_is_zero_i(openpam_straddch(&str, &size, &len, '\0'));
ret &= t_is_not_null(str);
ret &= t_is_not_zero_sz(size);
ret &= t_is_zero_sz(len);
if (!ret)
goto end;
// repeatedly append to it until allocation fails
errno = 0;
_str = str;
_size = size;
_len = len;
t_malloc_fail = 1;
for (i = 0; i < 4096; i++) {
if ((ret = openpam_straddch(&str, &size, &len, 'x')) != 0)
break;
_size = size;
_len = len;
}
t_malloc_fail = 0;
ret = t_compare_i(-1, ret);
ret &= t_compare_i(ENOMEM, errno);
ret &= t_compare_ptr(_str, str);
ret &= t_compare_sz(_size, size);
ret &= t_compare_sz(_len, len);
end:
free(str);
return ret;
}
static int
t_straddch_realloc_ok(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
{
char *str, *_str;
size_t size, _size, len, _len;
int i, ret;
// start with an empty string
str = NULL;
size = len = SIZE_MAX;
ret = t_is_zero_i(openpam_straddch(&str, &size, &len, '\0'));
ret &= t_is_not_null(str);
ret &= t_is_not_zero_sz(size);
ret &= t_is_zero_sz(len);
if (!ret)
goto end;
// repeatedly append to it until size changes
_str = str;
_size = size;
_len = len;
for (i = ' '; i <= '~'; i++) { // assume ascii
if ((ret = openpam_straddch(&str, &size, &len, i)) != 0)
break;
if (size != _size)
break;
if (len != _len + 1)
break;
_len = len;
}
ret = t_is_zero_i(ret);
if (!ret)
goto end;
ret &= t_compare_sz(_len + 1, len);
ret &= t_compare_sz(_size * 2, size);
ret &= t_compare_i(i, str[_len]);
ret &= t_is_zero_i(str[len]);
end:
free(str);
return ret;
}
/***************************************************************************
* Boilerplate
*/
static int
t_prepare(int argc CRYB_UNUSED, char *argv[] CRYB_UNUSED)
{
t_add_test(t_straddch_empty, NULL, "empty string");
t_add_test(t_straddch_alloc_fail, NULL, "allocation failure");
t_add_test(t_straddch_realloc_fail, NULL, "reallocation failure");
t_add_test(t_straddch_realloc_ok, NULL, "reallocation success");
return (0);
}
int
main(int argc, char *argv[])
{
t_main(t_prepare, NULL, argc, argv);
}
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