xref: /freebsd/lib/libc/tests/locale/c16rtomb_test.c (revision 1d386b48)
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 #include <errno.h>
35 #include <limits.h>
36 #include <locale.h>
37 #include <stdio.h>
38 #include <string.h>
39 #include <uchar.h>
40 
41 #include <atf-c.h>
42 
43 static void
44 require_lc_ctype(const char *locale_name)
45 {
46 	char *lc_ctype_set;
47 
48 	lc_ctype_set = setlocale(LC_CTYPE, locale_name);
49 	if (lc_ctype_set == NULL)
50 		atf_tc_fail("setlocale(LC_CTYPE, \"%s\") failed; errno=%d",
51 		    locale_name, errno);
52 
53 	ATF_REQUIRE(strcmp(lc_ctype_set, locale_name) == 0);
54 }
55 
56 static mbstate_t s;
57 static char buf[MB_LEN_MAX + 1];
58 
59 ATF_TC_WITHOUT_HEAD(c16rtomb_c_locale_test);
60 ATF_TC_BODY(c16rtomb_c_locale_test, tc)
61 {
62 
63 	require_lc_ctype("C");
64 
65 	/*
66 	 * If the buffer argument is NULL, c16 is implicitly 0,
67 	 * c16rtomb() resets its internal state.
68 	 */
69 	ATF_REQUIRE(c16rtomb(NULL, L'\0', NULL) == 1);
70 	ATF_REQUIRE(c16rtomb(NULL, 0xdc00, NULL) == 1);
71 
72 	/* Null wide character. */
73 	memset(&s, 0, sizeof(s));
74 	memset(buf, 0xcc, sizeof(buf));
75 	ATF_REQUIRE(c16rtomb(buf, 0, &s) == 1);
76 	ATF_REQUIRE((unsigned char)buf[0] == 0 && (unsigned char)buf[1] == 0xcc);
77 
78 	/* Latin letter A, internal state. */
79 	ATF_REQUIRE(c16rtomb(NULL, L'\0', NULL) == 1);
80 	ATF_REQUIRE(c16rtomb(NULL, L'A', NULL) == 1);
81 
82 	/* Latin letter A. */
83 	memset(&s, 0, sizeof(s));
84 	memset(buf, 0xcc, sizeof(buf));
85 	ATF_REQUIRE(c16rtomb(buf, L'A', &s) == 1);
86 	ATF_REQUIRE((unsigned char)buf[0] == 'A' && (unsigned char)buf[1] == 0xcc);
87 
88 	/* Unicode character 'Pile of poo'. */
89 	memset(&s, 0, sizeof(s));
90 	memset(buf, 0xcc, sizeof(buf));
91 	ATF_REQUIRE(c16rtomb(buf, 0xd83d, &s) == 0);
92 	ATF_REQUIRE(c16rtomb(buf, 0xdca9, &s) == (size_t)-1);
93 	ATF_REQUIRE(errno == EILSEQ);
94 	ATF_REQUIRE((unsigned char)buf[0] == 0xcc);
95 }
96 
97 ATF_TC_WITHOUT_HEAD(c16rtomb_iso_8859_1_test);
98 ATF_TC_BODY(c16rtomb_iso_8859_1_test, tc)
99 {
100 
101 	require_lc_ctype("en_US.ISO8859-1");
102 
103 	/* Unicode character 'Euro sign'. */
104 	memset(&s, 0, sizeof(s));
105 	memset(buf, 0xcc, sizeof(buf));
106 	ATF_REQUIRE(c16rtomb(buf, 0x20ac, &s) == (size_t)-1);
107 	ATF_REQUIRE(errno == EILSEQ);
108 	ATF_REQUIRE((unsigned char)buf[0] == 0xcc);
109 }
110 
111 ATF_TC_WITHOUT_HEAD(c16rtomb_iso_8859_15_test);
112 ATF_TC_BODY(c16rtomb_iso_8859_15_test, tc)
113 {
114 
115 	require_lc_ctype("en_US.ISO8859-15");
116 
117 	/* Unicode character 'Euro sign'. */
118 	memset(&s, 0, sizeof(s));
119 	memset(buf, 0xcc, sizeof(buf));
120 	ATF_REQUIRE(c16rtomb(buf, 0x20ac, &s) == 1);
121 	ATF_REQUIRE((unsigned char)buf[0] == 0xa4 && (unsigned char)buf[1] == 0xcc);
122 }
123 
124 ATF_TC_WITHOUT_HEAD(c16rtomb_utf_8_test);
125 ATF_TC_BODY(c16rtomb_utf_8_test, tc)
126 {
127 
128 	if (atf_tc_get_config_var_as_bool_wd(tc, "ci", false))
129 		atf_tc_skip("https://bugs.freebsd.org/265871");
130 
131 	require_lc_ctype("en_US.UTF-8");
132 
133 	/* Unicode character 'Pile of poo'. */
134 	memset(&s, 0, sizeof(s));
135 	memset(buf, 0xcc, sizeof(buf));
136 	ATF_REQUIRE(c16rtomb(buf, 0xd83d, &s) == 0);
137 	ATF_REQUIRE(c16rtomb(buf, 0xdca9, &s) == 4);
138 	ATF_REQUIRE((unsigned char)buf[0] == 0xf0 && (unsigned char)buf[1] == 0x9f &&
139 	    (unsigned char)buf[2] == 0x92 && (unsigned char)buf[3] == 0xa9 &&
140 	    (unsigned char)buf[4] == 0xcc);
141 
142 	/* Invalid code; 'Pile of poo' without the trail surrogate. */
143 	memset(&s, 0, sizeof(s));
144 	memset(buf, 0xcc, sizeof(buf));
145 	ATF_REQUIRE(c16rtomb(buf, 0xd83d, &s) == 0);
146 	ATF_REQUIRE(c16rtomb(buf, L'A', &s) == (size_t)-1);
147 	ATF_REQUIRE(errno == EILSEQ);
148 	ATF_REQUIRE((unsigned char)buf[0] == 0xcc);
149 
150 	/* Invalid code; 'Pile of poo' without the lead surrogate. */
151 	memset(&s, 0, sizeof(s));
152 	memset(buf, 0xcc, sizeof(buf));
153 	ATF_REQUIRE(c16rtomb(buf, 0xdca9, &s) == (size_t)-1);
154 	ATF_REQUIRE(errno == EILSEQ);
155 	ATF_REQUIRE((unsigned char)buf[0] == 0xcc);
156 }
157 
158 ATF_TP_ADD_TCS(tp)
159 {
160 
161 	ATF_TP_ADD_TC(tp, c16rtomb_c_locale_test);
162 	ATF_TP_ADD_TC(tp, c16rtomb_iso_8859_1_test);
163 	ATF_TP_ADD_TC(tp, c16rtomb_iso_8859_15_test);
164 	ATF_TP_ADD_TC(tp, c16rtomb_utf_8_test);
165 
166 	return (atf_no_error());
167 }
168