xref: /freebsd/lib/libc/tests/locale/c16rtomb_test.c (revision 63a938566d524836885917d95bd491aa4400b181)
1 /*-
2  * Copyright (c) 2002 Tim J. Robbins
3  * All rights reserved.
4  *
5  * Copyright (c) 2013 Ed Schouten <ed@FreeBSD.org>
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 /*
30  * Test program for c16rtomb() as specified by ISO/IEC 9899:2011.
31  */
32 
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
35 
36 #include <errno.h>
37 #include <limits.h>
38 #include <locale.h>
39 #include <stdio.h>
40 #include <string.h>
41 #include <uchar.h>
42 
43 #include <atf-c.h>
44 
45 static void
46 require_lc_ctype(const char *locale_name)
47 {
48 	char *lc_ctype_set;
49 
50 	lc_ctype_set = setlocale(LC_CTYPE, locale_name);
51 	if (lc_ctype_set == NULL)
52 		atf_tc_fail("setlocale(LC_CTYPE, \"%s\") failed; errno=%d",
53 		    locale_name, errno);
54 
55 	ATF_REQUIRE(strcmp(lc_ctype_set, locale_name) == 0);
56 }
57 
58 static mbstate_t s;
59 static char buf[MB_LEN_MAX + 1];
60 
61 ATF_TC_WITHOUT_HEAD(c16rtomb_c_locale_test);
62 ATF_TC_BODY(c16rtomb_c_locale_test, tc)
63 {
64 
65 	require_lc_ctype("C");
66 
67 	/*
68 	 * If the buffer argument is NULL, c16 is implicitly 0,
69 	 * c16rtomb() resets its internal state.
70 	 */
71 	ATF_REQUIRE(c16rtomb(NULL, L'\0', NULL) == 1);
72 	ATF_REQUIRE(c16rtomb(NULL, 0xdc00, NULL) == 1);
73 
74 	/* Null wide character. */
75 	memset(&s, 0, sizeof(s));
76 	memset(buf, 0xcc, sizeof(buf));
77 	ATF_REQUIRE(c16rtomb(buf, 0, &s) == 1);
78 	ATF_REQUIRE((unsigned char)buf[0] == 0 && (unsigned char)buf[1] == 0xcc);
79 
80 	/* Latin letter A, internal state. */
81 	ATF_REQUIRE(c16rtomb(NULL, L'\0', NULL) == 1);
82 	ATF_REQUIRE(c16rtomb(NULL, L'A', NULL) == 1);
83 
84 	/* Latin letter A. */
85 	memset(&s, 0, sizeof(s));
86 	memset(buf, 0xcc, sizeof(buf));
87 	ATF_REQUIRE(c16rtomb(buf, L'A', &s) == 1);
88 	ATF_REQUIRE((unsigned char)buf[0] == 'A' && (unsigned char)buf[1] == 0xcc);
89 
90 	/* Unicode character 'Pile of poo'. */
91 	memset(&s, 0, sizeof(s));
92 	memset(buf, 0xcc, sizeof(buf));
93 	ATF_REQUIRE(c16rtomb(buf, 0xd83d, &s) == 0);
94 	ATF_REQUIRE(c16rtomb(buf, 0xdca9, &s) == (size_t)-1);
95 	ATF_REQUIRE(errno == EILSEQ);
96 	ATF_REQUIRE((unsigned char)buf[0] == 0xcc);
97 }
98 
99 ATF_TC_WITHOUT_HEAD(c16rtomb_iso_8859_1_test);
100 ATF_TC_BODY(c16rtomb_iso_8859_1_test, tc)
101 {
102 
103 	require_lc_ctype("en_US.ISO8859-1");
104 
105 	/* Unicode character 'Euro sign'. */
106 	memset(&s, 0, sizeof(s));
107 	memset(buf, 0xcc, sizeof(buf));
108 	ATF_REQUIRE(c16rtomb(buf, 0x20ac, &s) == (size_t)-1);
109 	ATF_REQUIRE(errno == EILSEQ);
110 	ATF_REQUIRE((unsigned char)buf[0] == 0xcc);
111 }
112 
113 ATF_TC_WITHOUT_HEAD(c16rtomb_iso_8859_15_test);
114 ATF_TC_BODY(c16rtomb_iso_8859_15_test, tc)
115 {
116 
117 	require_lc_ctype("en_US.ISO8859-15");
118 
119 	/* Unicode character 'Euro sign'. */
120 	memset(&s, 0, sizeof(s));
121 	memset(buf, 0xcc, sizeof(buf));
122 	ATF_REQUIRE(c16rtomb(buf, 0x20ac, &s) == 1);
123 	ATF_REQUIRE((unsigned char)buf[0] == 0xa4 && (unsigned char)buf[1] == 0xcc);
124 }
125 
126 ATF_TC_WITHOUT_HEAD(c16rtomb_utf_8_test);
127 ATF_TC_BODY(c16rtomb_utf_8_test, tc)
128 {
129 
130 	require_lc_ctype("en_US.UTF-8");
131 
132 	/* Unicode character 'Pile of poo'. */
133 	memset(&s, 0, sizeof(s));
134 	memset(buf, 0xcc, sizeof(buf));
135 	ATF_REQUIRE(c16rtomb(buf, 0xd83d, &s) == 0);
136 	ATF_REQUIRE(c16rtomb(buf, 0xdca9, &s) == 4);
137 	ATF_REQUIRE((unsigned char)buf[0] == 0xf0 && (unsigned char)buf[1] == 0x9f &&
138 	    (unsigned char)buf[2] == 0x92 && (unsigned char)buf[3] == 0xa9 &&
139 	    (unsigned char)buf[4] == 0xcc);
140 
141 	/* Invalid code; 'Pile of poo' without the trail surrogate. */
142 	memset(&s, 0, sizeof(s));
143 	memset(buf, 0xcc, sizeof(buf));
144 	ATF_REQUIRE(c16rtomb(buf, 0xd83d, &s) == 0);
145 	ATF_REQUIRE(c16rtomb(buf, L'A', &s) == (size_t)-1);
146 	ATF_REQUIRE(errno == EILSEQ);
147 	ATF_REQUIRE((unsigned char)buf[0] == 0xcc);
148 
149 	/* Invalid code; 'Pile of poo' without the lead surrogate. */
150 	memset(&s, 0, sizeof(s));
151 	memset(buf, 0xcc, sizeof(buf));
152 	ATF_REQUIRE(c16rtomb(buf, 0xdca9, &s) == (size_t)-1);
153 	ATF_REQUIRE(errno == EILSEQ);
154 	ATF_REQUIRE((unsigned char)buf[0] == 0xcc);
155 }
156 
157 ATF_TP_ADD_TCS(tp)
158 {
159 
160 	ATF_TP_ADD_TC(tp, c16rtomb_c_locale_test);
161 	ATF_TP_ADD_TC(tp, c16rtomb_iso_8859_1_test);
162 	ATF_TP_ADD_TC(tp, c16rtomb_iso_8859_15_test);
163 	ATF_TP_ADD_TC(tp, c16rtomb_utf_8_test);
164 
165 	return (atf_no_error());
166 }
167