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/* Test harness for pipe-filter-ii.
Copyright (C) 2009-2015 Free Software Foundation, Inc.
Written by Paolo Bonzini <bonzini@gnu.org>, 2009.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include "pipe-filter.h"
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include <signal.h>
#include "full-write.h"
#include "progname.h"
#include "macros.h"
struct locals
{
const char *input;
size_t size;
size_t nwritten;
size_t nread;
char buf[5];
};
static const void *
prepare_write (size_t *num_bytes_p, void *private_data)
{
struct locals *l = (struct locals *) private_data;
if (l->nwritten < l->size)
{
*num_bytes_p = l->size - l->nwritten;
return l->input + l->nwritten;
}
else
return NULL;
}
static void
done_write (void *data_written, size_t num_bytes_written, void *private_data)
{
struct locals *l = (struct locals *) private_data;
l->nwritten += num_bytes_written;
}
static void *
prepare_read (size_t *num_bytes_p, void *private_data)
{
struct locals *l = (struct locals *) private_data;
*num_bytes_p = sizeof (l->buf);
return l->buf;
}
/* Callback that ignores the data that has been read. */
static void
ignore_done_read (void *data_read, size_t num_bytes_read, void *private_data)
{
}
/* Callback that outputs the data that has been read. */
static void
output_done_read (void *data_read, size_t num_bytes_read, void *private_data)
{
full_write (STDOUT_FILENO, data_read, num_bytes_read);
}
int
main (int argc, char **argv)
{
const char *path[] = { NULL, NULL };
set_program_name (argv[0]);
ASSERT (argc == 2);
/* Test writing to a nonexistent program traps sooner or later. */
{
struct locals l;
int rc;
l.input = "";
l.size = 1;
l.nwritten = 0;
l.nread = 0;
path[0] = "/nonexistent/blah";
rc = pipe_filter_ii_execute ("pipe-filter-test", path[0], path, true, false,
prepare_write, done_write,
prepare_read, ignore_done_read,
&l);
ASSERT (rc == 127 || rc == -1);
printf ("Test 1 passed.\n");
fflush (stdout);
}
/* Test returning the exit status. */
{
struct locals l;
int rc;
l.input = "1 -1";
l.size = strlen (l.input);
l.nwritten = 0;
l.nread = 0;
path[0] = argv[1];
rc = pipe_filter_ii_execute ("pipe-filter-test", path[0], path, false, false,
prepare_write, done_write,
prepare_read, ignore_done_read,
&l);
ASSERT (rc == 1);
printf ("Test 2 passed.\n");
fflush (stdout);
}
/* Now test asynchronous I/O. */
{
struct locals l;
int rc;
l.input = "1 50\n51\n100";
l.size = strlen (l.input);
l.nwritten = 0;
l.nread = 0;
path[0] = argv[1];
rc = pipe_filter_ii_execute ("pipe-filter-test", path[0], path, false, true,
prepare_write, done_write,
prepare_read, output_done_read,
&l);
ASSERT (rc == 0);
printf ("Test 3 passed.\n");
fflush (stdout);
}
return 0;
}
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