xref: /freebsd/lib/libc/tests/locale/wcrtomb_test.c (revision e37e8677fe55ddd0685c764e17ac58707787758a)
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 <errno.h>
36 #include <limits.h>
37 #include <locale.h>
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <string.h>
41 #include <wchar.h>
42 
43 #include <atf-c.h>
44 
45 ATF_TC_WITHOUT_HEAD(wcrtomb_test);
46 ATF_TC_BODY(wcrtomb_test, tc)
47 {
48 	mbstate_t s;
49 	size_t len;
50 	char buf[MB_LEN_MAX + 1];
51 
52 	/* C/POSIX locale. */
53 
54 	ATF_REQUIRE(MB_CUR_MAX == 1);
55 
56 	/*
57 	 * If the buffer argument is NULL, wc is implicitly L'\0',
58 	 * wcrtomb() resets its internal state.
59 	 */
60 	ATF_REQUIRE(wcrtomb(NULL, L'\0', NULL) == 1);
61 	ATF_REQUIRE(wcrtomb(NULL, UCHAR_MAX + 1, NULL) == 1);
62 
63 	/* Null wide character. */
64 	memset(&s, 0, sizeof(s));
65 	memset(buf, 0xcc, sizeof(buf));
66 	len = wcrtomb(buf, L'\0', &s);
67 	ATF_REQUIRE(len == 1);
68 	ATF_REQUIRE((unsigned char)buf[0] == 0 && (unsigned char)buf[1] == 0xcc);
69 
70 	/* Latin letter A, internal state. */
71 	ATF_REQUIRE(wcrtomb(NULL, L'\0', NULL) == 1);
72 	ATF_REQUIRE(wcrtomb(NULL, L'A', NULL) == 1);
73 
74 	/* Latin letter A. */
75 	memset(&s, 0, sizeof(s));
76 	memset(buf, 0xcc, sizeof(buf));
77 	len = wcrtomb(buf, L'A', &s);
78 	ATF_REQUIRE(len == 1);
79 	ATF_REQUIRE((unsigned char)buf[0] == 'A' && (unsigned char)buf[1] == 0xcc);
80 
81 	/* Invalid code. */
82 	ATF_REQUIRE(wcrtomb(buf, UCHAR_MAX + 1, NULL) == (size_t)-1);
83 	ATF_REQUIRE(errno == EILSEQ);
84 
85 	/*
86 	 * Japanese (EUC) locale.
87 	 */
88 
89 	ATF_REQUIRE(strcmp(setlocale(LC_CTYPE, "ja_JP.eucJP"), "ja_JP.eucJP") == 0);
90 	ATF_REQUIRE(MB_CUR_MAX == 3);
91 
92 	/*
93 	 * If the buffer argument is NULL, wc is implicitly L'\0',
94 	 * wcrtomb() resets its internal state.
95 	 */
96 	ATF_REQUIRE(wcrtomb(NULL, L'\0', NULL) == 1);
97 
98 	/* Null wide character. */
99 	memset(&s, 0, sizeof(s));
100 	memset(buf, 0xcc, sizeof(buf));
101 	len = wcrtomb(buf, L'\0', &s);
102 	ATF_REQUIRE(len == 1);
103 	ATF_REQUIRE((unsigned char)buf[0] == 0 && (unsigned char)buf[1] == 0xcc);
104 
105 	/* Latin letter A, internal state. */
106 	ATF_REQUIRE(wcrtomb(NULL, L'\0', NULL) == 1);
107 	ATF_REQUIRE(wcrtomb(NULL, L'A', NULL) == 1);
108 
109 	/* Latin letter A. */
110 	memset(&s, 0, sizeof(s));
111 	memset(buf, 0xcc, sizeof(buf));
112 	len = wcrtomb(buf, L'A', &s);
113 	ATF_REQUIRE(len == 1);
114 	ATF_REQUIRE((unsigned char)buf[0] == 'A' && (unsigned char)buf[1] == 0xcc);
115 
116 	/* Full width letter A. */
117 	memset(&s, 0, sizeof(s));
118 	memset(buf, 0xcc, sizeof(buf));
119 	len = wcrtomb(buf, 0xa3c1, &s);
120 	ATF_REQUIRE(len == 2);
121 	ATF_REQUIRE((unsigned char)buf[0] == 0xa3 &&
122 		(unsigned char)buf[1] == 0xc1 &&
123 		(unsigned char)buf[2] == 0xcc);
124 }
125 
126 ATF_TP_ADD_TCS(tp)
127 {
128 
129 	ATF_TP_ADD_TC(tp, wcrtomb_test);
130 
131 	return (atf_no_error());
132 }
133