xref: /freebsd/lib/libc/tests/locale/wcrtomb_test.c (revision d0b2dbfa)
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 #include <errno.h>
37 #include <limits.h>
38 #include <locale.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <string.h>
42 #include <wchar.h>
43 
44 #include <atf-c.h>
45 
46 ATF_TC_WITHOUT_HEAD(wcrtomb_test);
47 ATF_TC_BODY(wcrtomb_test, tc)
48 {
49 	mbstate_t s;
50 	size_t len;
51 	char buf[MB_LEN_MAX + 1];
52 
53 	/* C/POSIX locale. */
54 
55 	ATF_REQUIRE(MB_CUR_MAX == 1);
56 
57 	/*
58 	 * If the buffer argument is NULL, wc is implicitly L'\0',
59 	 * wcrtomb() resets its internal state.
60 	 */
61 	ATF_REQUIRE(wcrtomb(NULL, L'\0', NULL) == 1);
62 	ATF_REQUIRE(wcrtomb(NULL, UCHAR_MAX + 1, NULL) == 1);
63 
64 	/* Null wide character. */
65 	memset(&s, 0, sizeof(s));
66 	memset(buf, 0xcc, sizeof(buf));
67 	len = wcrtomb(buf, L'\0', &s);
68 	ATF_REQUIRE(len == 1);
69 	ATF_REQUIRE((unsigned char)buf[0] == 0 && (unsigned char)buf[1] == 0xcc);
70 
71 	/* Latin letter A, internal state. */
72 	ATF_REQUIRE(wcrtomb(NULL, L'\0', NULL) == 1);
73 	ATF_REQUIRE(wcrtomb(NULL, L'A', NULL) == 1);
74 
75 	/* Latin letter A. */
76 	memset(&s, 0, sizeof(s));
77 	memset(buf, 0xcc, sizeof(buf));
78 	len = wcrtomb(buf, L'A', &s);
79 	ATF_REQUIRE(len == 1);
80 	ATF_REQUIRE((unsigned char)buf[0] == 'A' && (unsigned char)buf[1] == 0xcc);
81 
82 	/* Invalid code. */
83 	ATF_REQUIRE(wcrtomb(buf, UCHAR_MAX + 1, NULL) == (size_t)-1);
84 	ATF_REQUIRE(errno == EILSEQ);
85 
86 	/*
87 	 * Japanese (EUC) locale.
88 	 */
89 
90 	ATF_REQUIRE(strcmp(setlocale(LC_CTYPE, "ja_JP.eucJP"), "ja_JP.eucJP") == 0);
91 	ATF_REQUIRE(MB_CUR_MAX == 3);
92 
93 	/*
94 	 * If the buffer argument is NULL, wc is implicitly L'\0',
95 	 * wcrtomb() resets its internal state.
96 	 */
97 	ATF_REQUIRE(wcrtomb(NULL, L'\0', NULL) == 1);
98 
99 	/* Null wide character. */
100 	memset(&s, 0, sizeof(s));
101 	memset(buf, 0xcc, sizeof(buf));
102 	len = wcrtomb(buf, L'\0', &s);
103 	ATF_REQUIRE(len == 1);
104 	ATF_REQUIRE((unsigned char)buf[0] == 0 && (unsigned char)buf[1] == 0xcc);
105 
106 	/* Latin letter A, internal state. */
107 	ATF_REQUIRE(wcrtomb(NULL, L'\0', NULL) == 1);
108 	ATF_REQUIRE(wcrtomb(NULL, L'A', NULL) == 1);
109 
110 	/* Latin letter A. */
111 	memset(&s, 0, sizeof(s));
112 	memset(buf, 0xcc, sizeof(buf));
113 	len = wcrtomb(buf, L'A', &s);
114 	ATF_REQUIRE(len == 1);
115 	ATF_REQUIRE((unsigned char)buf[0] == 'A' && (unsigned char)buf[1] == 0xcc);
116 
117 	/* Full width letter A. */
118 	memset(&s, 0, sizeof(s));
119 	memset(buf, 0xcc, sizeof(buf));
120 	len = wcrtomb(buf, 0xa3c1, &s);
121 	ATF_REQUIRE(len == 2);
122 	ATF_REQUIRE((unsigned char)buf[0] == 0xa3 &&
123 		(unsigned char)buf[1] == 0xc1 &&
124 		(unsigned char)buf[2] == 0xcc);
125 }
126 
127 ATF_TP_ADD_TCS(tp)
128 {
129 
130 	ATF_TP_ADD_TC(tp, wcrtomb_test);
131 
132 	return (atf_no_error());
133 }
134