xref: /freebsd/lib/libc/tests/locale/wctomb_test.c (revision c4c562eadf3b790fa221e220d6a442f0cb84ca35)
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 <errno.h>
36 #include <limits.h>
37 #include <locale.h>
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <string.h>
41 
42 #include <atf-c.h>
43 
44 ATF_TC_WITHOUT_HEAD(euccs1_test);
ATF_TC_BODY(euccs1_test,tc)45 ATF_TC_BODY(euccs1_test, tc)
46 {
47 	wchar_t wc = 0x8e000000;
48 	char buf[MB_LEN_MAX];
49 
50 	ATF_REQUIRE(strcmp(setlocale(LC_CTYPE, "zh_CN.eucCN"),
51 	    "zh_CN.eucCN") == 0);
52 
53 	ATF_REQUIRE(wctomb(&buf[0], wc) == 4);
54 }
55 
56 ATF_TC_WITHOUT_HEAD(wctomb_test);
ATF_TC_BODY(wctomb_test,tc)57 ATF_TC_BODY(wctomb_test, tc)
58 {
59 	size_t len;
60 	char buf[MB_LEN_MAX + 1];
61 
62 	/* C/POSIX locale. */
63 
64 	ATF_REQUIRE(MB_CUR_MAX == 1);
65 
66 	/* No shift states in C locale. */
67 	ATF_REQUIRE(wctomb(NULL, L'\0') == 0);
68 
69 	/* Null wide character. */
70 	memset(buf, 0xcc, sizeof(buf));
71 	len = wctomb(buf, L'\0');
72 	ATF_REQUIRE(len == 1);
73 	ATF_REQUIRE((unsigned char)buf[0] == 0 && (unsigned char)buf[1] == 0xcc);
74 
75 	/* Latin letter A. */
76 	memset(buf, 0xcc, sizeof(buf));
77 	len = wctomb(buf, L'A');
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(wctomb(buf, UCHAR_MAX + 1) == -1);
83 	ATF_REQUIRE(wctomb(NULL, 0) == 0);
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 	/* No shift states in EUC encoding. */
93 	ATF_REQUIRE(wctomb(NULL, L'\0') == 0);
94 
95 	/* Null wide character. */
96 	memset(buf, 0xcc, sizeof(buf));
97 	len = wctomb(buf, L'\0');
98 	ATF_REQUIRE(len == 1);
99 	ATF_REQUIRE((unsigned char)buf[0] == 0 && (unsigned char)buf[1] == 0xcc);
100 
101 	/* Latin letter A. */
102 	memset(buf, 0xcc, sizeof(buf));
103 	len = wctomb(buf, L'A');
104 	ATF_REQUIRE(len == 1);
105 	ATF_REQUIRE((unsigned char)buf[0] == 'A' && (unsigned char)buf[1] == 0xcc);
106 
107 	/* Full width letter A. */
108 	memset(buf, 0xcc, sizeof(buf));
109 	len = wctomb(buf, 0xa3c1);
110 	ATF_REQUIRE(len == 2);
111 	ATF_REQUIRE((unsigned char)buf[0] == 0xa3 &&
112 		(unsigned char)buf[1] == 0xc1 &&
113 		(unsigned char)buf[2] == 0xcc);
114 }
115 
ATF_TP_ADD_TCS(tp)116 ATF_TP_ADD_TCS(tp)
117 {
118 
119 	ATF_TP_ADD_TC(tp, euccs1_test);
120 	ATF_TP_ADD_TC(tp, wctomb_test);
121 
122 	return (atf_no_error());
123 }
124