1 /* $NetBSD: t_clearerr.c,v 1.1 2011/05/01 16:36:37 jruoho Exp $ */
2
3 /*
4 * Copyright (c) 2009, Stathis Kamperis
5 * All rights reserved.
6
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
19 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
20 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
26 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29 #include <sys/cdefs.h>
30 __RCSID("$NetBSD: t_clearerr.c,v 1.1 2011/05/01 16:36:37 jruoho Exp $");
31
32 #include <atf-c.h>
33 #include <errno.h>
34 #include <stdio.h>
35
36 static const char path[] = "/etc/passwd";
37
38 ATF_TC(clearerr_basic);
ATF_TC_HEAD(clearerr_basic,tc)39 ATF_TC_HEAD(clearerr_basic, tc)
40 {
41 atf_tc_set_md_var(tc, "descr", "A basic test of clearerr(3)");
42 }
43
ATF_TC_BODY(clearerr_basic,tc)44 ATF_TC_BODY(clearerr_basic, tc)
45 {
46 char buf[2048];
47 FILE *fp;
48
49 fp = fopen(path, "r");
50 ATF_REQUIRE(fp != NULL);
51
52 while (feof(fp) == 0)
53 (void)fread(buf, sizeof(buf), 1, fp);
54
55 ATF_REQUIRE(feof(fp) != 0);
56
57 errno = 0;
58 clearerr(fp);
59
60 ATF_REQUIRE(errno == 0);
61 ATF_REQUIRE(feof(fp) == 0);
62 ATF_REQUIRE(fclose(fp) != EOF);
63 }
64
65 ATF_TC(clearerr_err);
ATF_TC_HEAD(clearerr_err,tc)66 ATF_TC_HEAD(clearerr_err, tc)
67 {
68 atf_tc_set_md_var(tc, "descr", "Test that clearerr(3) does not fail");
69 }
70
ATF_TC_BODY(clearerr_err,tc)71 ATF_TC_BODY(clearerr_err, tc)
72 {
73 FILE *fp;
74
75 fp = fopen(path, "r");
76
77 ATF_REQUIRE(fp != NULL);
78 ATF_REQUIRE(fclose(fp) == 0);
79
80 errno = 0;
81 clearerr(fp);
82
83 ATF_REQUIRE(errno == 0);
84 }
85
ATF_TP_ADD_TCS(tp)86 ATF_TP_ADD_TCS(tp)
87 {
88
89 ATF_TP_ADD_TC(tp, clearerr_basic);
90 ATF_TP_ADD_TC(tp, clearerr_err);
91
92 return atf_no_error();
93 }
94