xref: /src/tests/lib/libc/gen/t_fmtcheck.c

/*	$NetBSD: t_fmtcheck.c,v 1.6 2024/04/13 14:02:51 rillig Exp $	*/

/*-
 * Copyright (c) 2000 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code was contributed to The NetBSD Foundation by Allen Briggs.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
 */

#include <atf-c.h>

#include <stdio.h>
#include <stdlib.h>

const char *fmtcheck(const char *f1, const char *f2)
                __attribute__((__format_arg__(2)));

#include <err.h>

struct test_fmt {
	const char	*fmt1;
	const char	*fmt2;
	int		correct;
} test_fmts[] = {
	{ "%d", "%d", 1 },
	{ "%2d", "%2.2d", 1 },
	{ "%x", "%d", 1 },
	{ "%u", "%d", 1 },
	{ "%03d", "%d", 1 },
	{ "%-2d", "%d", 1 },
	{ "%d", "%-12.1d", 1 },
	{ "%d", "%-01.3d", 1 },
	{ "%X", "%-01.3d", 1 },
	{ "%D", "%ld", 1 },
	{ "%s", "%s", 1 },
	{ "%s", "This is a %s test", 1 },
	{ "Hi, there.  This is a %s test", "%s", 1 },
	{ "%d", "%s", 2 },
	{ "%e", "%s", 2 },
	{ "%r", "%d", 2 },
	{ "%*.2d", "%*d", 1 },
	{ "%2.*d", "%*d", 2 },
	{ "%*d", "%*d", 1 },
	{ "%-3", "%d", 2 },
	{ "%d %s", "%d", 2 },
	{ "%*.*.*d", "%*.*.*d", 2 },
	{ "%d", "%d %s", 1 },
	{ "%40s", "%20s", 1 },
	{ "%x %x %x", "%o %u %d", 1 },
	{ "%o %u %d", "%x %x %X", 1 },
	{ "%#o %u %#-d", "%x %#x %X", 1 },
	{ "%qd", "%llx", 1 },
	{ "%%", "%llx", 1 },
	{ "%ld %30s %#llx %-10.*e", "This number %lu%% and string %s has %qd numbers and %.*g floats", 1 },
	{ "%o", "%lx", 2 },
	{ "%p", "%lu", 2 },
	// When fmtcheck supports '$', it could be used in dcngettext.
	{ "%1$s", "%s", 2 },
	{ "%1$s %2$s", "%s %s", 2 },
	{ "%2$d %1$s", "%s %d", 2 },
};

ATF_TC(fmtcheck_basic);
ATF_TC_HEAD(fmtcheck_basic, tc)
{

	atf_tc_set_md_var(tc, "descr", "Test fmtcheck(3)");
}

ATF_TC_BODY(fmtcheck_basic, tc)
{
	unsigned int	i, r;
	const char	*f, *cf, *f1, *f2;

	r = 0;
	for (i = 0 ; i < __arraycount(test_fmts); i++) {
		f1 = test_fmts[i].fmt1;
		f2 = test_fmts[i].fmt2;
		f = fmtcheck(f1, f2);
		if (test_fmts[i].correct == 1) {
			cf = f1;
		} else {
			cf = f2;
		}
		if (f != cf) {
			r++;
			atf_tc_fail_nonfatal("Test %d: (%s) vs. (%s) failed "
			    "(should have returned %s)", i, f1, f2,
			    (test_fmts[i].correct == 1) ? "1st" : "2nd");
		}
	}
}

ATF_TP_ADD_TCS(tp)
{

	ATF_TP_ADD_TC(tp, fmtcheck_basic);

	return atf_no_error();
}