freebsd-dev/lib/libc/tests/locale/mbrtowc_test.c

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/*-
* Copyright (c) 2002 Tim J. Robbins
* All rights reserved.
*
* 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 AUTHOR 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 AUTHOR 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.
*/
/*
* Test program for mbrtowc(), as specified by IEEE Std. 1003.1-2001 and
* ISO/IEC 9899:1999.
*
* The function is tested with both the "C" ("POSIX") LC_CTYPE setting and
* "ja_JP.eucJP". Other encodings are not tested.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <errno.h>
#include <limits.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#include <atf-c.h>
ATF_TC_WITHOUT_HEAD(mbrtowc_test);
ATF_TC_BODY(mbrtowc_test, tc)
{
mbstate_t s;
wchar_t wc;
char buf[MB_LEN_MAX + 1];
/*
* C/POSIX locale.
*/
ATF_REQUIRE(MB_CUR_MAX == 1);
/* Null wide character, internal state. */
memset(buf, 0xcc, sizeof(buf));
buf[0] = 0;
ATF_REQUIRE(mbrtowc(&wc, buf, 1, NULL) == 0);
ATF_REQUIRE(wc == 0);
/* Null wide character. */
memset(&s, 0, sizeof(s));
ATF_REQUIRE(mbrtowc(&wc, buf, 1, &s) == 0);
ATF_REQUIRE(wc == 0);
/* Latin letter A, internal state. */
ATF_REQUIRE(mbrtowc(NULL, 0, 0, NULL) == 0);
buf[0] = 'A';
ATF_REQUIRE(mbrtowc(&wc, buf, 1, NULL) == 1);
ATF_REQUIRE(wc == L'A');
/* Latin letter A. */
memset(&s, 0, sizeof(s));
ATF_REQUIRE(mbrtowc(&wc, buf, 1, &s) == 1);
ATF_REQUIRE(wc == L'A');
/* Incomplete character sequence. */
wc = L'z';
memset(&s, 0, sizeof(s));
ATF_REQUIRE(mbrtowc(&wc, buf, 0, &s) == (size_t)-2);
ATF_REQUIRE(wc == L'z');
/* Check that mbrtowc() doesn't access the buffer when n == 0. */
wc = L'z';
memset(&s, 0, sizeof(s));
buf[0] = '\0';
ATF_REQUIRE(mbrtowc(&wc, buf, 0, &s) == (size_t)-2);
ATF_REQUIRE(wc == L'z');
/*
* Japanese (EUC) locale.
*/
ATF_REQUIRE(strcmp(setlocale(LC_CTYPE, "ja_JP.eucJP"), "ja_JP.eucJP") == 0);
ATF_REQUIRE(MB_CUR_MAX > 1);
/* Null wide character, internal state. */
ATF_REQUIRE(mbrtowc(NULL, 0, 0, NULL) == 0);
memset(buf, 0xcc, sizeof(buf));
buf[0] = 0;
ATF_REQUIRE(mbrtowc(&wc, buf, 1, NULL) == 0);
ATF_REQUIRE(wc == 0);
/* Null wide character. */
memset(&s, 0, sizeof(s));
ATF_REQUIRE(mbrtowc(&wc, buf, 1, &s) == 0);
ATF_REQUIRE(wc == 0);
/* Latin letter A, internal state. */
ATF_REQUIRE(mbrtowc(NULL, 0, 0, NULL) == 0);
buf[0] = 'A';
ATF_REQUIRE(mbrtowc(&wc, buf, 1, NULL) == 1);
ATF_REQUIRE(wc == L'A');
/* Latin letter A. */
memset(&s, 0, sizeof(s));
ATF_REQUIRE(mbrtowc(&wc, buf, 1, &s) == 1);
ATF_REQUIRE(wc == L'A');
/* Incomplete character sequence (zero length). */
wc = L'z';
memset(&s, 0, sizeof(s));
ATF_REQUIRE(mbrtowc(&wc, buf, 0, &s) == (size_t)-2);
ATF_REQUIRE(wc == L'z');
/* Incomplete character sequence (truncated double-byte). */
memset(buf, 0xcc, sizeof(buf));
buf[0] = 0xa3;
buf[1] = 0x00;
memset(&s, 0, sizeof(s));
wc = 0;
ATF_REQUIRE(mbrtowc(&wc, buf, 1, &s) == (size_t)-2);
/* Same as above, but complete. */
buf[1] = 0xc1;
memset(&s, 0, sizeof(s));
wc = 0;
ATF_REQUIRE(mbrtowc(&wc, buf, 2, &s) == 2);
ATF_REQUIRE(wc == 0xa3c1);
/* Test restarting behaviour. */
memset(buf, 0xcc, sizeof(buf));
buf[0] = 0xa3;
memset(&s, 0, sizeof(s));
wc = 0;
ATF_REQUIRE(mbrtowc(&wc, buf, 1, &s) == (size_t)-2);
ATF_REQUIRE(wc == 0);
buf[0] = 0xc1;
ATF_REQUIRE(mbrtowc(&wc, buf, 1, &s) == 1);
ATF_REQUIRE(wc == 0xa3c1);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, mbrtowc_test);
return (atf_no_error());
}