/* test *time_t code, for libreswan
 *
 * Copyright (C) 2019 Andrew Cagney
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Library General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.  See <https://www.gnu.org/licenses/lgpl-2.1.txt>.
 *
 * 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 Library General Public
 * License for more details.
 *
 */

#include <stdio.h>
#include <string.h>

#include "constants.h"		/* for elemsof() */
#include "monotime.h"
#include "timecheck.h"

void check_monotime(void)
{
	char what[1000];

	static const struct test_monotimediff {
		intmax_t l, r;
		const char *diff;
	} test_monotimediff[] = {
		{ 1, 1, "0", },
		{ 2, 1, "1", },
		{ 1, 2, "-1", },
	};
	for (unsigned i = 0; i < elemsof(test_monotimediff); i++) {
		const struct test_monotimediff *t = &test_monotimediff[i];
		monotime_t l = monotime(t->l);
		monotime_t r = monotime(t->r);
		deltatime_t d = monotimediff(l, r);
		deltatime_buf buf;
		const char *str = str_deltatime(d, &buf);

		snprintf(what, sizeof(what), "monotime(%jd) - monotime(%jd) = %s", t->l, t->r, t->diff);
		if (strcmp(str, t->diff) != 0) {
			fprintf(stderr, "FAIL: %s vs %s\n", what, str);
			fail++;
		} else {
			printf("%s\n", what);
		}
	}
}
