1 /*-
2 * Copyright (c) 2024 Tobias Stoeckmann
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(S) ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "test.h"
27
28 #define __LIBARCHIVE_TEST
29 #include "archive_read_private.h"
30
31 static char buf[1024];
32
DEFINE_TEST(test_archive_read_ahead_eof)33 DEFINE_TEST(test_archive_read_ahead_eof)
34 {
35 struct archive *a;
36 struct archive_read *ar;
37 ssize_t avail;
38
39 /* prepare a reader of raw in-memory data */
40 assert((a = archive_read_new()) != NULL);
41 ar = (struct archive_read *)a;
42
43 assertA(0 == archive_read_support_format_raw(a));
44 assertA(0 == archive_read_open_memory(a, buf, sizeof(buf)));
45
46 /* perform a read which can be fulfilled */
47 assert(NULL != __archive_read_ahead(ar, sizeof(buf) - 1, &avail));
48 assertEqualInt(sizeof(buf), avail);
49
50 /* perform a read which cannot be fulfilled due to EOF */
51 assert(NULL == __archive_read_ahead(ar, sizeof(buf) + 1, &avail));
52 assertEqualInt(sizeof(buf), avail);
53
54 /* perform the same read again */
55 assert(NULL == __archive_read_ahead(ar, sizeof(buf) + 1, &avail));
56 assertEqualInt(sizeof(buf), avail);
57
58 /* perform another read which can be fulfilled */
59 assert(NULL != __archive_read_ahead(ar, sizeof(buf), &avail));
60 assertEqualInt(sizeof(buf), avail);
61
62 assert(0 == archive_read_free(a));
63 }
64