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/Test.h"
16
17 #include <sys/stat.h>
18 #include <unistd.h>
19
TEST(LlvmLibcAccessTest,CreateAndTest)20 TEST(LlvmLibcAccessTest, CreateAndTest) {
21 // The test strategy is to repeatedly create a file in different modes and
22 // test that it is accessable in those modes but not in others.
23 LIBC_NAMESPACE::libc_errno = 0;
24 using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
25 constexpr const char *FILENAME = "access.test";
26 auto TEST_FILE = libc_make_test_file_path(FILENAME);
27 int fd = LIBC_NAMESPACE::open(TEST_FILE, O_WRONLY | O_CREAT, S_IRWXU);
28 ASSERT_ERRNO_SUCCESS();
29 ASSERT_GT(fd, 0);
30 ASSERT_THAT(LIBC_NAMESPACE::close(fd), Succeeds(0));
31
32 ASSERT_EQ(LIBC_NAMESPACE::access(TEST_FILE, F_OK), 0);
33 ASSERT_ERRNO_SUCCESS();
34 ASSERT_EQ(LIBC_NAMESPACE::access(TEST_FILE, X_OK | W_OK | R_OK), 0);
35 ASSERT_ERRNO_SUCCESS();
36 ASSERT_THAT(LIBC_NAMESPACE::unlink(TEST_FILE), Succeeds(0));
37
38 fd = LIBC_NAMESPACE::open(TEST_FILE, O_WRONLY | O_CREAT, S_IXUSR);
39 ASSERT_ERRNO_SUCCESS();
40 ASSERT_GT(fd, 0);
41 ASSERT_THAT(LIBC_NAMESPACE::close(fd), Succeeds(0));
42 ASSERT_EQ(LIBC_NAMESPACE::access(TEST_FILE, F_OK), 0);
43 ASSERT_ERRNO_SUCCESS();
44 ASSERT_EQ(LIBC_NAMESPACE::access(TEST_FILE, X_OK), 0);
45 ASSERT_ERRNO_SUCCESS();
46 ASSERT_EQ(LIBC_NAMESPACE::access(TEST_FILE, R_OK), -1);
47 ASSERT_ERRNO_EQ(EACCES);
48 LIBC_NAMESPACE::libc_errno = 0;
49 ASSERT_EQ(LIBC_NAMESPACE::access(TEST_FILE, W_OK), -1);
50 ASSERT_ERRNO_EQ(EACCES);
51 LIBC_NAMESPACE::libc_errno = 0;
52 ASSERT_THAT(LIBC_NAMESPACE::unlink(TEST_FILE), Succeeds(0));
53 }
54
TEST(LlvmLibcAccessTest,AccessNonExistentFile)55 TEST(LlvmLibcAccessTest, AccessNonExistentFile) {
56 using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;
57 ASSERT_THAT(LIBC_NAMESPACE::access("testdata/non-existent-file", F_OK),
58 Fails(ENOENT));
59 }
60