1 //===-- Unittests for openat ----------------------------------------------===// 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/fcntl/openat.h" 12 #include "src/unistd/close.h" 13 #include "src/unistd/read.h" 14 #include "test/UnitTest/ErrnoSetterMatcher.h" 15 #include "test/UnitTest/Test.h" 16 17 #include "hdr/fcntl_macros.h" 18 19 TEST(LlvmLibcUniStd, OpenAndReadTest) { 20 using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds; 21 constexpr const char *TEST_DIR = "testdata"; 22 constexpr const char *TEST_FILE = "openat.test"; 23 int dir_fd = LIBC_NAMESPACE::open(TEST_DIR, O_DIRECTORY); 24 ASSERT_ERRNO_SUCCESS(); 25 ASSERT_GT(dir_fd, 0); 26 constexpr const char TEST_MSG[] = "openat test"; 27 constexpr int TEST_MSG_SIZE = sizeof(TEST_MSG) - 1; 28 29 int read_fd = LIBC_NAMESPACE::openat(dir_fd, TEST_FILE, O_RDONLY); 30 ASSERT_ERRNO_SUCCESS(); 31 ASSERT_GT(read_fd, 0); 32 char read_buf[TEST_MSG_SIZE]; 33 ASSERT_THAT(LIBC_NAMESPACE::read(read_fd, read_buf, TEST_MSG_SIZE), 34 Succeeds(TEST_MSG_SIZE)); 35 ASSERT_THAT(LIBC_NAMESPACE::close(read_fd), Succeeds(0)); 36 ASSERT_THAT(LIBC_NAMESPACE::close(dir_fd), Succeeds(0)); 37 } 38 39 TEST(LlvmLibcUniStd, FailTest) { 40 using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails; 41 EXPECT_THAT(LIBC_NAMESPACE::openat(AT_FDCWD, "openat.test", O_RDONLY), 42 Fails(ENOENT)); 43 } 44