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/* terror.c -- Frightening test of error handling.
Copyright 2010,
Spaces project, Inria Lorraine
and Salsa project, INRIA Rocquencourt,
and Arenaire project, Inria Rhone-Alpes, France
and Lab. ANO, USTL (Univ. of Lille), France
This file is part of the MPFI Library.
The MPFI 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.
The MPFI 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 the MPFI Library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
MA 02110-1301, USA. */
#include "mpfi-tests.h"
#include "mpfi_config.h"
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
int
read_stderr (FILE *stream)
{
int ret = 0;
/* something to read? */
ret = (fgetc (stream) != EOF);
if (fseek (stream, 0, SEEK_END) != 0) {
printf ("Internal error: cannot reset stream.\n");
exit (1);
}
return ret;
}
int
main (int argc, char **argv)
{
FILE *stream;
if (freopen ("error.tmp", "w", stderr) == NULL) {
printf ("Internal error: cannot redirect stderr to a file.\n");
exit (1);
}
stream = fopen ("error.tmp", "r");
if (stream == NULL) {
printf ("Internal error: cannot open the file \"error.tmp\".\n");
exit (1);
}
mpfi_reset_error ();
if (mpfi_is_error () == 1) {
printf ("Error: mpfi_is_error() returns 1 after a call to "
"mpfi_reset_error.\n");
exit (1);
}
MPFI_ERROR ("[1] this should be printed!");
fflush (stderr);
if (!read_stderr (stream)) {
printf ("Error: MPFI_ERROR does not print message after a call to "
"mpfi_reset_error.\n");
exit (1);
}
if (mpfi_is_error () != 1) {
printf ("Error: mpfi_is_error does not set return 1 after a call to "
"MPFI_ERROR.\n");
exit (1);
}
mpfi_set_error (2);
if (mpfi_is_error () == 1) {
printf ("Error: mpfi_is_error() returns 1 after calling "
"mpfi_set_error(2).\n");
exit (1);
}
MPFI_ERROR ("[2] this should not be printed!");
fflush (stderr);
if (read_stderr (stream)) {
printf ("Error: MPFI_ERROR prints a message while error number is "
"set.\n");
exit (1);
}
if (mpfi_is_error () == 1) {
printf ("Error: MPFI_ERROR set error number to 1 while it was already "
"set.\n");
exit (1);
}
mpfi_set_error (1);
if (mpfi_is_error () != 1) {
printf ("Error: mpfi_is_error() does not return 1 after calling "
"mpfi_set_error(1).\n");
exit (1);
}
MPFI_ERROR ("[3] this should not be printed!");
fflush (stderr);
if (read_stderr (stream)) {
printf ("Error: MPFI_ERROR prints a message while error number is "
"set.\n");
exit (1);
}
mpfi_reset_error ();
if (mpfi_is_error () == 1) {
printf ("Error: mpfi_is_error() returns 1 after a call to "
"mpfi_reset_error.\n");
exit (1);
}
MPFI_ERROR ("[4] this should be printed!");
fflush (stderr);
if (!read_stderr (stream)) {
printf ("Error: MPFI_ERROR does not print message after a call to "
"mpfi_reset_error.\n");
exit (1);
}
if (mpfi_is_error () != 1) {
printf ("Error: MPFI_ERROR dos not set error number to 1 after a call to "
"mpfi_reset_error.\n");
exit (1);
}
fclose (stream);
fclose (stderr);
unlink ("error.tmp");
return 0;
}
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