xref: /freebsd/lib/libc/tests/locale/mbrlen_test.c (revision 3494f7c0)
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 mbrlen(), 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(mbrlen_test);
46 ATF_TC_BODY(mbrlen_test, tc)
47 {
48 	mbstate_t s;
49 	char buf[MB_LEN_MAX + 1];
50 
51 	/* C/POSIX locale. */
52 	ATF_REQUIRE(MB_CUR_MAX == 1);
53 
54 	/* Null wide character, internal state. */
55 	memset(buf, 0xcc, sizeof(buf));
56 	buf[0] = 0;
57 	ATF_REQUIRE(mbrlen(buf, 1, NULL) == 0);
58 
59 	/* Null wide character. */
60 	memset(&s, 0, sizeof(s));
61 	ATF_REQUIRE(mbrlen(buf, 1, &s) == 0);
62 
63 	/* Latin letter A, internal state. */
64 	ATF_REQUIRE(mbrlen(NULL, 0, NULL) == 0);
65 	buf[0] = 'A';
66 	ATF_REQUIRE(mbrlen(buf, 1, NULL) == 1);
67 
68 	/* Latin letter A. */
69 	memset(&s, 0, sizeof(s));
70 	ATF_REQUIRE(mbrlen(buf, 1, &s) == 1);
71 
72 	/* Incomplete character sequence. */
73 	memset(&s, 0, sizeof(s));
74 	ATF_REQUIRE(mbrlen(buf, 0, &s) == (size_t)-2);
75 
76 	/* Japanese (EUC) locale. */
77 
78 	ATF_REQUIRE(strcmp(setlocale(LC_CTYPE, "ja_JP.eucJP"), "ja_JP.eucJP") == 0);
79 	ATF_REQUIRE(MB_CUR_MAX > 1);
80 
81 	/* Null wide character, internal state. */
82 	ATF_REQUIRE(mbrlen(NULL, 0, NULL) == 0);
83 	memset(buf, 0xcc, sizeof(buf));
84 	buf[0] = 0;
85 	ATF_REQUIRE(mbrlen(buf, 1, NULL) == 0);
86 
87 	/* Null wide character. */
88 	memset(&s, 0, sizeof(s));
89 	ATF_REQUIRE(mbrlen(buf, 1, &s) == 0);
90 
91 	/* Latin letter A, internal state. */
92 	ATF_REQUIRE(mbrlen(NULL, 0, NULL) == 0);
93 	buf[0] = 'A';
94 	ATF_REQUIRE(mbrlen(buf, 1, NULL) == 1);
95 
96 	/* Latin letter A. */
97 	memset(&s, 0, sizeof(s));
98 	ATF_REQUIRE(mbrlen(buf, 1, &s) == 1);
99 
100 	/* Incomplete character sequence (zero length). */
101 	memset(&s, 0, sizeof(s));
102 	ATF_REQUIRE(mbrlen(buf, 0, &s) == (size_t)-2);
103 
104 	/* Incomplete character sequence (truncated double-byte). */
105 	memset(buf, 0xcc, sizeof(buf));
106 	buf[0] = 0xa3;
107 	buf[1] = 0x00;
108 	memset(&s, 0, sizeof(s));
109 	ATF_REQUIRE(mbrlen(buf, 1, &s) == (size_t)-2);
110 
111 	/* Same as above, but complete. */
112 	buf[1] = 0xc1;
113 	memset(&s, 0, sizeof(s));
114 	ATF_REQUIRE(mbrlen(buf, 2, &s) == 2);
115 }
116 
117 ATF_TP_ADD_TCS(tp)
118 {
119 
120 	ATF_TP_ADD_TC(tp, mbrlen_test);
121 
122 	return (atf_no_error());
123 }
124