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 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 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