46 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/fcntl/open.h"10#include "src/fcntl/openat.h"11#include "src/unistd/close.h"12#include "src/unistd/read.h"13#include "test/UnitTest/ErrnoCheckingTest.h"14#include "test/UnitTest/ErrnoSetterMatcher.h"15#include "test/UnitTest/Test.h"16 17#include "hdr/fcntl_macros.h"18 19using LlvmLibcOpenAtTest = LIBC_NAMESPACE::testing::ErrnoCheckingTest;20 21TEST_F(LlvmLibcOpenAtTest, OpenAndReadTest) {22 using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;23 constexpr const char *TEST_DIR = "testdata";24 constexpr const char *TEST_FILE = "openat.test";25 int dir_fd = LIBC_NAMESPACE::open(TEST_DIR, O_DIRECTORY);26 ASSERT_ERRNO_SUCCESS();27 ASSERT_GT(dir_fd, 0);28 constexpr const char TEST_MSG[] = "openat test";29 constexpr ssize_t TEST_MSG_SIZE = sizeof(TEST_MSG) - 1;30 31 int read_fd = LIBC_NAMESPACE::openat(dir_fd, TEST_FILE, O_RDONLY);32 ASSERT_ERRNO_SUCCESS();33 ASSERT_GT(read_fd, 0);34 char read_buf[TEST_MSG_SIZE];35 ASSERT_THAT(LIBC_NAMESPACE::read(read_fd, read_buf, TEST_MSG_SIZE),36 Succeeds(TEST_MSG_SIZE));37 ASSERT_THAT(LIBC_NAMESPACE::close(read_fd), Succeeds(0));38 ASSERT_THAT(LIBC_NAMESPACE::close(dir_fd), Succeeds(0));39}40 41TEST_F(LlvmLibcOpenAtTest, FailTest) {42 using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;43 EXPECT_THAT(LIBC_NAMESPACE::openat(AT_FDCWD, "openat.test", O_RDONLY),44 Fails(ENOENT));45}46