1 /*
2 * libdpkg - Debian packaging suite library routines
3 * t-file.c - test file functions
4 *
5 * Copyright © 2018 Guillem Jover <guillem@debian.org>
6 *
7 * This is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
19 */
20
21 #include <config.h>
22 #include <compat.h>
23
24 #include <dpkg/test.h>
25 #include <dpkg/dpkg.h>
26 #include <dpkg/file.h>
27
28 #include <sys/types.h>
29
30 #include <errno.h>
31 #include <unistd.h>
32 #include <stdlib.h>
33 #include <stdio.h>
34
35 static const char ref_data[] =
36 "this is a test string\n"
37 "within a test file\n"
38 "containing multiple lines\n"
39 ;
40
41 static void
test_file_slurp(void)42 test_file_slurp(void)
43 {
44 struct varbuf vb = VARBUF_INIT;
45 struct dpkg_error err = DPKG_ERROR_INIT;
46 char *test_file;
47 char *test_dir;
48 int fd;
49
50 test_pass(file_slurp("/nonexistent", &vb, &err) < 0);
51 test_pass(vb.used == 0);
52 test_pass(vb.buf == NULL);
53 test_pass(err.syserrno == ENOENT);
54 test_error(err);
55 varbuf_destroy(&vb);
56
57 test_dir = test_alloc(strdup("test.XXXXXX"));
58 test_pass(mkdtemp(test_dir) != NULL);
59 test_pass(file_slurp(test_dir, &vb, &err) < 0);
60 test_pass(vb.used == 0);
61 test_pass(vb.buf == NULL);
62 test_pass(err.syserrno == 0);
63 test_error(err);
64 varbuf_destroy(&vb);
65 test_pass(rmdir(test_dir) == 0);
66
67 test_file = test_alloc(strdup("test.XXXXXX"));
68 fd = mkstemp(test_file);
69 test_pass(fd >= 0);
70
71 test_pass(file_slurp(test_file, &vb, &err) == 0);
72 test_pass(vb.used == 0);
73 test_pass(vb.buf == NULL);
74 test_pass(err.syserrno == 0);
75 test_pass(err.type == DPKG_MSG_NONE);
76 varbuf_destroy(&vb);
77
78 test_pass(write(fd, ref_data, strlen(ref_data)) == (ssize_t)strlen(ref_data));
79 test_pass(lseek(fd, 0, SEEK_SET) == 0);
80
81 test_pass(file_slurp(test_file, &vb, &err) == 0);
82 test_pass(vb.used == strlen(ref_data));
83 test_mem(vb.buf, ==, ref_data, min(vb.used, strlen(ref_data)));
84 test_pass(err.syserrno == 0);
85 test_pass(err.type == DPKG_MSG_NONE);
86 varbuf_destroy(&vb);
87
88 test_pass(unlink(test_file) == 0);
89 }
90
TEST_ENTRY(test)91 TEST_ENTRY(test)
92 {
93 test_plan(26);
94
95 test_file_slurp();
96 }
97