1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
//===-- Unittests for symlinkat -------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/errno/libc_errno.h"
#include "src/fcntl/open.h"
#include "src/unistd/close.h"
#include "src/unistd/symlinkat.h"
#include "src/unistd/unlink.h"
#include "test/UnitTest/ErrnoSetterMatcher.h"
#include "test/UnitTest/Test.h"
#include <sys/stat.h>
TEST(LlvmLibcSymlinkatTest, CreateAndUnlink) {
using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
constexpr const char *FILENAME = "testdata";
auto TEST_DIR = libc_make_test_file_path(FILENAME);
constexpr const char *FILENAME2 = "symlinkat.test";
auto TEST_FILE = libc_make_test_file_path(FILENAME2);
constexpr const char *FILENAME3 = "testdata/symlinkat.test";
auto TEST_FILE_PATH = libc_make_test_file_path(FILENAME3);
constexpr const char *FILENAME4 = "symlinkat.test.link";
auto TEST_FILE_LINK = libc_make_test_file_path(FILENAME4);
constexpr const char *FILENAME5 = "testdata/symlinkat.test.link";
auto TEST_FILE_LINK_PATH = libc_make_test_file_path(FILENAME5);
// The test strategy is as follows:
// 1. Create a normal file
// 2. Create a link to that file.
// 3. Open the link to check that the link was created.
// 4. Cleanup the file and its link.
LIBC_NAMESPACE::libc_errno = 0;
int write_fd =
LIBC_NAMESPACE::open(TEST_FILE_PATH, O_WRONLY | O_CREAT, S_IRWXU);
ASSERT_ERRNO_SUCCESS();
ASSERT_GT(write_fd, 0);
ASSERT_THAT(LIBC_NAMESPACE::close(write_fd), Succeeds(0));
int dir_fd = LIBC_NAMESPACE::open(TEST_DIR, O_DIRECTORY);
ASSERT_THAT(LIBC_NAMESPACE::symlinkat(TEST_FILE, dir_fd, TEST_FILE_LINK),
Succeeds(0));
int link_fd = LIBC_NAMESPACE::open(TEST_FILE_LINK_PATH, O_PATH);
ASSERT_GT(link_fd, 0);
ASSERT_ERRNO_SUCCESS();
ASSERT_THAT(LIBC_NAMESPACE::close(link_fd), Succeeds(0));
ASSERT_THAT(LIBC_NAMESPACE::close(dir_fd), Succeeds(0));
ASSERT_THAT(LIBC_NAMESPACE::unlink(TEST_FILE_LINK_PATH), Succeeds(0));
ASSERT_THAT(LIBC_NAMESPACE::unlink(TEST_FILE_PATH), Succeeds(0));
}
TEST(LlvmLibcSymlinkatTest, SymlinkInNonExistentPath) {
using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;
ASSERT_THAT(LIBC_NAMESPACE::symlinkat("non-existent-dir/non-existent-file",
AT_FDCWD, "non-existent-dir/bad-link"),
Fails(ENOENT));
}
|
