1//===-- Unittests for access ----------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "src/errno/libc_errno.h"
10#include "src/fcntl/open.h"
11#include "src/unistd/access.h"
12#include "src/unistd/close.h"
13#include "src/unistd/unlink.h"
14#include "test/UnitTest/ErrnoSetterMatcher.h"
15#include "test/UnitTest/LibcTest.h"
16#include "test/UnitTest/Test.h"
17
18#include <sys/stat.h>
19#include <unistd.h>
20
21TEST(LlvmLibcAccessTest, CreateAndTest) {
22 // The test strategy is to repeatedly create a file in different modes and
23 // test that it is accessable in those modes but not in others.
24 LIBC_NAMESPACE::libc_errno = 0;
25 using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
26 constexpr const char *FILENAME = "access.test";
27 auto TEST_FILE = libc_make_test_file_path(FILENAME);
28 int fd = LIBC_NAMESPACE::open(path: TEST_FILE, O_WRONLY | O_CREAT, S_IRWXU);
29 ASSERT_ERRNO_SUCCESS();
30 ASSERT_GT(fd, 0);
31 ASSERT_THAT(LIBC_NAMESPACE::close(fd), Succeeds(0));
32
33 ASSERT_EQ(LIBC_NAMESPACE::access(TEST_FILE, F_OK), 0);
34 ASSERT_ERRNO_SUCCESS();
35 ASSERT_EQ(LIBC_NAMESPACE::access(TEST_FILE, X_OK | W_OK | R_OK), 0);
36 ASSERT_ERRNO_SUCCESS();
37 ASSERT_THAT(LIBC_NAMESPACE::unlink(TEST_FILE), Succeeds(0));
38
39 fd = LIBC_NAMESPACE::open(path: TEST_FILE, O_WRONLY | O_CREAT, S_IXUSR);
40 ASSERT_ERRNO_SUCCESS();
41 ASSERT_GT(fd, 0);
42 ASSERT_THAT(LIBC_NAMESPACE::close(fd), Succeeds(0));
43 ASSERT_EQ(LIBC_NAMESPACE::access(TEST_FILE, F_OK), 0);
44 ASSERT_ERRNO_SUCCESS();
45 ASSERT_EQ(LIBC_NAMESPACE::access(TEST_FILE, X_OK), 0);
46 ASSERT_ERRNO_SUCCESS();
47 ASSERT_EQ(LIBC_NAMESPACE::access(TEST_FILE, R_OK), -1);
48 ASSERT_ERRNO_EQ(EACCES);
49 LIBC_NAMESPACE::libc_errno = 0;
50 ASSERT_EQ(LIBC_NAMESPACE::access(TEST_FILE, W_OK), -1);
51 ASSERT_ERRNO_EQ(EACCES);
52 LIBC_NAMESPACE::libc_errno = 0;
53 ASSERT_THAT(LIBC_NAMESPACE::unlink(TEST_FILE), Succeeds(0));
54}
55
56TEST(LlvmLibcAccessTest, AccessNonExistentFile) {
57 using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;
58 ASSERT_THAT(LIBC_NAMESPACE::access("testdata/non-existent-file", F_OK),
59 Fails(ENOENT));
60}
61

source code of libc/test/src/unistd/access_test.cpp