53 lines · cpp
1//===-- Unittests for fchdir ----------------------------------------------===//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/unistd/close.h"11#include "src/unistd/fchdir.h"12#include "test/UnitTest/ErrnoCheckingTest.h"13#include "test/UnitTest/ErrnoSetterMatcher.h"14#include "test/UnitTest/Test.h"15 16#include "hdr/fcntl_macros.h"17 18using LlvmLibcChdirTest = LIBC_NAMESPACE::testing::ErrnoCheckingTest;19 20TEST_F(LlvmLibcChdirTest, ChangeAndOpen) {21 // The idea of this test is that we will first open an existing test file22 // without changing the directory to make sure it exists. Next, we change23 // directory and open the same file to make sure that the "fchdir" operation24 // succeeded.25 using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;26 constexpr const char *FILENAME = "testdata";27 auto TEST_DIR = libc_make_test_file_path(FILENAME);28 constexpr const char *FILENAME2 = "testdata/fchdir.test";29 auto TEST_FILE = libc_make_test_file_path(FILENAME2);30 constexpr const char *FILENAME3 = "fchdir.test";31 auto TEST_FILE_BASE = libc_make_test_file_path(FILENAME3);32 33 int dir_fd = LIBC_NAMESPACE::open(TEST_DIR, O_DIRECTORY);34 ASSERT_GT(dir_fd, 0);35 ASSERT_ERRNO_SUCCESS();36 int file_fd = LIBC_NAMESPACE::open(TEST_FILE, O_PATH);37 ASSERT_GT(file_fd, 0);38 ASSERT_ERRNO_SUCCESS();39 ASSERT_THAT(LIBC_NAMESPACE::close(file_fd), Succeeds(0));40 41 ASSERT_THAT(LIBC_NAMESPACE::fchdir(dir_fd), Succeeds(0));42 file_fd = LIBC_NAMESPACE::open(TEST_FILE_BASE, O_PATH);43 ASSERT_GT(file_fd, 0);44 ASSERT_ERRNO_SUCCESS();45 ASSERT_THAT(LIBC_NAMESPACE::close(file_fd), Succeeds(0));46 ASSERT_THAT(LIBC_NAMESPACE::close(dir_fd), Succeeds(0));47}48 49TEST_F(LlvmLibcChdirTest, ChangeToNonExistentDir) {50 ASSERT_EQ(LIBC_NAMESPACE::fchdir(0), -1);51 ASSERT_ERRNO_FAILURE();52}53