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//===-- Unittests for fstat -----------------------------------------------===//
//
// 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/errno/libc_errno.h"
#include "src/fcntl/open.h"
#include "src/sys/stat/fstat.h"
#include "src/unistd/close.h"
#include "src/unistd/unlink.h"
#include "test/UnitTest/ErrnoSetterMatcher.h"
#include "test/UnitTest/Test.h"
#include <fcntl.h>
#include <sys/stat.h>
TEST(LlvmLibcFStatTest, CreatAndReadMode) {
using __llvm_libc::testing::ErrnoSetterMatcher::Fails;
using __llvm_libc::testing::ErrnoSetterMatcher::Succeeds;
// The test file is initially writable. We open it for writing and ensure
// that it indeed can be opened for writing. Next, we close the file and
// make it readonly using chmod. We test that chmod actually succeeded by
// trying to open the file for writing and failing.
constexpr const char *TEST_FILE = "testdata/fstat.test";
libc_errno = 0;
int fd = __llvm_libc::open(TEST_FILE, O_CREAT | O_WRONLY, S_IRWXU);
ASSERT_GT(fd, 0);
ASSERT_EQ(libc_errno, 0);
struct stat statbuf;
ASSERT_THAT(__llvm_libc::fstat(fd, &statbuf), Succeeds(0));
ASSERT_EQ(int(statbuf.st_mode), int(S_IRWXU | S_IFREG));
ASSERT_THAT(__llvm_libc::close(fd), Succeeds(0));
ASSERT_THAT(__llvm_libc::unlink(TEST_FILE), Succeeds(0));
}
TEST(LlvmLibcFStatTest, NonExistentFile) {
libc_errno = 0;
using __llvm_libc::testing::ErrnoSetterMatcher::Fails;
struct stat statbuf;
ASSERT_THAT(__llvm_libc::fstat(-1, &statbuf), Fails(EBADF));
libc_errno = 0;
}
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