libc/test/src/unistd/unlink_test.cpp

//===-- Unittests for unlink ----------------------------------------------===//
//
// 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/unistd/close.h"
#include "src/unistd/unlink.h"
#include "test/UnitTest/ErrnoSetterMatcher.h"
#include "test/UnitTest/Test.h"

#include <sys/stat.h>

TEST(LlvmLibcUnlinkTest, CreateAndUnlink) {
  using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
  constexpr const char *TEST_FILE = "testdata/unlink.test";
  int write_fd = LIBC_NAMESPACE::open(TEST_FILE, O_WRONLY | O_CREAT, S_IRWXU);
  ASSERT_EQ(libc_errno, 0);
  ASSERT_GT(write_fd, 0);
  ASSERT_THAT(LIBC_NAMESPACE::close(write_fd), Succeeds(0));
  ASSERT_THAT(LIBC_NAMESPACE::unlink(TEST_FILE), Succeeds(0));
}

TEST(LlvmLibcUnlinkTest, UnlinkNonExistentFile) {
  using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;
  ASSERT_THAT(LIBC_NAMESPACE::unlink("testdata/non-existent-file"),
              Fails(ENOENT));
}