xref: /freebsd/lib/libc/tests/locale/wctomb_test.c (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1 /*-
2  * Copyright (c) 2002-2004 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 wctomb(), 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 
45 #include <atf-c.h>
46 
47 ATF_TC_WITHOUT_HEAD(wctomb_test);
48 ATF_TC_BODY(wctomb_test, tc)
49 {
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 	/* No shift states in C locale. */
58 	ATF_REQUIRE(wctomb(NULL, L'\0') == 0);
59 
60 	/* Null wide character. */
61 	memset(buf, 0xcc, sizeof(buf));
62 	len = wctomb(buf, L'\0');
63 	ATF_REQUIRE(len == 1);
64 	ATF_REQUIRE((unsigned char)buf[0] == 0 && (unsigned char)buf[1] == 0xcc);
65 
66 	/* Latin letter A. */
67 	memset(buf, 0xcc, sizeof(buf));
68 	len = wctomb(buf, L'A');
69 	ATF_REQUIRE(len == 1);
70 	ATF_REQUIRE((unsigned char)buf[0] == 'A' && (unsigned char)buf[1] == 0xcc);
71 
72 	/* Invalid code. */
73 	ATF_REQUIRE(wctomb(buf, UCHAR_MAX + 1) == -1);
74 	ATF_REQUIRE(wctomb(NULL, 0) == 0);
75 
76 	/*
77 	 * Japanese (EUC) locale.
78 	 */
79 
80 	ATF_REQUIRE(strcmp(setlocale(LC_CTYPE, "ja_JP.eucJP"), "ja_JP.eucJP") == 0);
81 	ATF_REQUIRE(MB_CUR_MAX == 3);
82 
83 	/* No shift states in EUC encoding. */
84 	ATF_REQUIRE(wctomb(NULL, L'\0') == 0);
85 
86 	/* Null wide character. */
87 	memset(buf, 0xcc, sizeof(buf));
88 	len = wctomb(buf, L'\0');
89 	ATF_REQUIRE(len == 1);
90 	ATF_REQUIRE((unsigned char)buf[0] == 0 && (unsigned char)buf[1] == 0xcc);
91 
92 	/* Latin letter A. */
93 	memset(buf, 0xcc, sizeof(buf));
94 	len = wctomb(buf, L'A');
95 	ATF_REQUIRE(len == 1);
96 	ATF_REQUIRE((unsigned char)buf[0] == 'A' && (unsigned char)buf[1] == 0xcc);
97 
98 	/* Full width letter A. */
99 	memset(buf, 0xcc, sizeof(buf));
100 	len = wctomb(buf, 0xa3c1);
101 	ATF_REQUIRE(len == 2);
102 	ATF_REQUIRE((unsigned char)buf[0] == 0xa3 &&
103 		(unsigned char)buf[1] == 0xc1 &&
104 		(unsigned char)buf[2] == 0xcc);
105 }
106 
107 ATF_TP_ADD_TCS(tp)
108 {
109 
110 	ATF_TP_ADD_TC(tp, wctomb_test);
111 
112 	return (atf_no_error());
113 }
114