btrfs-progs/tests/json-formatter-test.c

97 lines
2.3 KiB
C

/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License v2 as published by the Free Software Foundation.
*
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 021110-1307, USA.
*/
/*
* Test json output formatter
*
* Usage:
*
* $ ./json-formatter-test
* 123
*
* Without arguments returns the number of tests.
*
* $ ./json-formatter-test 17
* ...
*
* Run the given test, print formatted json for further processing or validation.
*/
#include <stdio.h>
#include <stdlib.h>
#include "common/utils.h"
#include "common/format-output.h"
#include "cmds/commands.h"
/* Default empty output */
void test_simple_empty()
{
static const struct rowspec rows[] = {
ROWSPEC_END
};
struct format_ctx fctx;
fmt_start(&fctx, rows, 32, 0);
fmt_end(&fctx);
}
/* Single object with a few members */
void test1()
{
static const struct rowspec rows1[] = {
{ .key = "device", .fmt = "%s", .out_text = "device", .out_json = "device" },
{ .key = "devid", .fmt = "%llu", .out_text = "devid", .out_json = "devid" },
ROWSPEC_END
};
struct format_ctx fctx;
fmt_start(&fctx, rows1, 32, 0);
fmt_print_start_group(&fctx, "device-info", JSON_TYPE_MAP);
fmt_print(&fctx, "device", "/dev/sda");
fmt_print(&fctx, "devid", 1);
fmt_print_end_group(&fctx, NULL);
fmt_end(&fctx);
}
int main(int argc, char **argv)
{
int testno;
static void (*tests[])() = {
test_simple_empty,
test1,
};
btrfs_config_init();
bconf.output_format = CMD_FORMAT_JSON;
/* Without arguments, print the number of tests available */
if (argc == 1) {
printf("%zu\n", ARRAY_SIZE(tests));
return 0;
}
testno = atoi(argv[1]);
testno--;
if (testno < 0 || testno >= ARRAY_SIZE(tests)) {
fprintf(stderr, "ERROR: test number %d is out of range (max %zu)\n",
testno + 1, ARRAY_SIZE(tests));
return 1;
}
tests[testno]();
return 0;
}