xref: /freebsd/lib/libc/tests/locale/wcrtomb_test.c (revision 1f4bcc459a76b7aa664f3fd557684cd0ba6da352)
1 /*-
2  * Copyright (c) 2002 Tim J. Robbins
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 /*
28  * Test program for wcrtomb(), as specified by IEEE Std. 1003.1-2001 and
29  * ISO/IEC 9899:1999.
30  *
31  * The function is tested with both the "C" ("POSIX") LC_CTYPE setting and
32  * "ja_JP.eucJP". Other encodings are not tested.
33  */
34 
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
37 
38 #include <errno.h>
39 #include <limits.h>
40 #include <locale.h>
41 #include <stdio.h>
42 #include <stdlib.h>
43 #include <string.h>
44 #include <wchar.h>
45 
46 #include <atf-c.h>
47 
48 ATF_TC_WITHOUT_HEAD(wcrtomb_test);
49 ATF_TC_BODY(wcrtomb_test, tc)
50 {
51 	mbstate_t s;
52 	size_t len;
53 	char buf[MB_LEN_MAX + 1];
54 
55 	/* C/POSIX locale. */
56 
57 	ATF_REQUIRE(MB_CUR_MAX == 1);
58 
59 	/*
60 	 * If the buffer argument is NULL, wc is implicitly L'\0',
61 	 * wcrtomb() resets its internal state.
62 	 */
63 	ATF_REQUIRE(wcrtomb(NULL, L'\0', NULL) == 1);
64 	ATF_REQUIRE(wcrtomb(NULL, UCHAR_MAX + 1, NULL) == 1);
65 
66 	/* Null wide character. */
67 	memset(&s, 0, sizeof(s));
68 	memset(buf, 0xcc, sizeof(buf));
69 	len = wcrtomb(buf, L'\0', &s);
70 	ATF_REQUIRE(len == 1);
71 	ATF_REQUIRE((unsigned char)buf[0] == 0 && (unsigned char)buf[1] == 0xcc);
72 
73 	/* Latin letter A, internal state. */
74 	ATF_REQUIRE(wcrtomb(NULL, L'\0', NULL) == 1);
75 	ATF_REQUIRE(wcrtomb(NULL, L'A', NULL) == 1);
76 
77 	/* Latin letter A. */
78 	memset(&s, 0, sizeof(s));
79 	memset(buf, 0xcc, sizeof(buf));
80 	len = wcrtomb(buf, L'A', &s);
81 	ATF_REQUIRE(len == 1);
82 	ATF_REQUIRE((unsigned char)buf[0] == 'A' && (unsigned char)buf[1] == 0xcc);
83 
84 	/* Invalid code. */
85 	ATF_REQUIRE(wcrtomb(buf, UCHAR_MAX + 1, NULL) == (size_t)-1);
86 	ATF_REQUIRE(errno == EILSEQ);
87 
88 	/*
89 	 * Japanese (EUC) locale.
90 	 */
91 
92 	ATF_REQUIRE(strcmp(setlocale(LC_CTYPE, "ja_JP.eucJP"), "ja_JP.eucJP") == 0);
93 	ATF_REQUIRE(MB_CUR_MAX == 3);
94 
95 	/*
96 	 * If the buffer argument is NULL, wc is implicitly L'\0',
97 	 * wcrtomb() resets its internal state.
98 	 */
99 	ATF_REQUIRE(wcrtomb(NULL, L'\0', NULL) == 1);
100 
101 	/* Null wide character. */
102 	memset(&s, 0, sizeof(s));
103 	memset(buf, 0xcc, sizeof(buf));
104 	len = wcrtomb(buf, L'\0', &s);
105 	ATF_REQUIRE(len == 1);
106 	ATF_REQUIRE((unsigned char)buf[0] == 0 && (unsigned char)buf[1] == 0xcc);
107 
108 	/* Latin letter A, internal state. */
109 	ATF_REQUIRE(wcrtomb(NULL, L'\0', NULL) == 1);
110 	ATF_REQUIRE(wcrtomb(NULL, L'A', NULL) == 1);
111 
112 	/* Latin letter A. */
113 	memset(&s, 0, sizeof(s));
114 	memset(buf, 0xcc, sizeof(buf));
115 	len = wcrtomb(buf, L'A', &s);
116 	ATF_REQUIRE(len == 1);
117 	ATF_REQUIRE((unsigned char)buf[0] == 'A' && (unsigned char)buf[1] == 0xcc);
118 
119 	/* Full width letter A. */
120 	memset(&s, 0, sizeof(s));
121 	memset(buf, 0xcc, sizeof(buf));
122 	len = wcrtomb(buf, 0xa3c1, &s);
123 	ATF_REQUIRE(len == 2);
124 	ATF_REQUIRE((unsigned char)buf[0] == 0xa3 &&
125 		(unsigned char)buf[1] == 0xc1 &&
126 		(unsigned char)buf[2] == 0xcc);
127 }
128 
129 ATF_TP_ADD_TCS(tp)
130 {
131 
132 	ATF_TP_ADD_TC(tp, wcrtomb_test);
133 
134 	return (atf_no_error());
135 }
136