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//===-- Unittests for openat ----------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/fcntl/open.h"
#include "src/fcntl/openat.h"
#include "src/unistd/close.h"
#include "src/unistd/read.h"
#include "test/UnitTest/ErrnoCheckingTest.h"
#include "test/UnitTest/ErrnoSetterMatcher.h"
#include "test/UnitTest/Test.h"
#include "hdr/fcntl_macros.h"
using LlvmLibcOpenAtTest = LIBC_NAMESPACE::testing::ErrnoCheckingTest;
TEST_F(LlvmLibcOpenAtTest, OpenAndReadTest) {
using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
constexpr const char *TEST_DIR = "testdata";
constexpr const char *TEST_FILE = "openat.test";
int dir_fd = LIBC_NAMESPACE::open(TEST_DIR, O_DIRECTORY);
ASSERT_ERRNO_SUCCESS();
ASSERT_GT(dir_fd, 0);
constexpr const char TEST_MSG[] = "openat test";
constexpr ssize_t TEST_MSG_SIZE = sizeof(TEST_MSG) - 1;
int read_fd = LIBC_NAMESPACE::openat(dir_fd, TEST_FILE, O_RDONLY);
ASSERT_ERRNO_SUCCESS();
ASSERT_GT(read_fd, 0);
char read_buf[TEST_MSG_SIZE];
ASSERT_THAT(LIBC_NAMESPACE::read(read_fd, read_buf, TEST_MSG_SIZE),
Succeeds(TEST_MSG_SIZE));
ASSERT_THAT(LIBC_NAMESPACE::close(read_fd), Succeeds(0));
ASSERT_THAT(LIBC_NAMESPACE::close(dir_fd), Succeeds(0));
}
TEST_F(LlvmLibcOpenAtTest, FailTest) {
using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;
EXPECT_THAT(LIBC_NAMESPACE::openat(AT_FDCWD, "openat.test", O_RDONLY),
Fails(ENOENT));
}
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