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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03
// <experimental/filesystem>
// bool exists(file_status s) noexcept
// bool exists(path const& p);
// bool exists(path const& p, std::error_code& ec) noexcept;
#include <experimental/filesystem>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
#include "rapid-cxx-test.hpp"
#include "filesystem_test_helper.hpp"
using namespace std::experimental::filesystem;
TEST_SUITE(exists_test_suite)
TEST_CASE(signature_test)
{
file_status s; ((void)s);
const path p; ((void)p);
std::error_code ec; ((void)ec);
ASSERT_NOEXCEPT(exists(s));
ASSERT_NOEXCEPT(exists(p, ec));
ASSERT_NOT_NOEXCEPT(exists(p));
}
TEST_CASE(exists_status_test)
{
struct TestCase {
file_type type;
bool expect;
};
const TestCase testCases[] = {
{file_type::none, false},
{file_type::not_found, false},
{file_type::regular, true},
{file_type::directory, true},
{file_type::symlink, true},
{file_type::block, true},
{file_type::character, true},
{file_type::fifo, true},
{file_type::socket, true},
{file_type::unknown, true}
};
for (auto& TC : testCases) {
file_status s(TC.type);
TEST_CHECK(exists(s) == TC.expect);
}
}
TEST_CASE(test_exist_not_found)
{
const path p = StaticEnv::DNE;
TEST_CHECK(exists(p) == false);
std::error_code ec = GetTestEC();
TEST_CHECK(exists(p, ec) == false);
TEST_CHECK(!ec);
}
TEST_CASE(test_exists_fails)
{
scoped_test_env env;
const path dir = env.create_dir("dir");
const path file = env.create_file("dir/file", 42);
permissions(dir, perms::none);
std::error_code ec;
TEST_CHECK(exists(file, ec) == false);
TEST_CHECK(ec);
TEST_CHECK_THROW(filesystem_error, exists(file));
}
TEST_CASE(test_name_too_long) {
std::string long_name(2500, 'a');
const path file(long_name);
std::error_code ec;
TEST_CHECK(exists(file, ec) == false);
TEST_CHECK(ec);
}
TEST_SUITE_END()
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