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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>
// uintmax_t hard_link_count(const path& p);
// uintmax_t hard_link_count(const path& 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(hard_link_count_test_suite)
TEST_CASE(signature_test)
{
const path p; ((void)p);
std::error_code ec; ((void)ec);
ASSERT_SAME_TYPE(decltype(hard_link_count(p)), uintmax_t);
ASSERT_SAME_TYPE(decltype(hard_link_count(p, ec)), uintmax_t);
ASSERT_NOT_NOEXCEPT(hard_link_count(p));
ASSERT_NOEXCEPT(hard_link_count(p, ec));
}
TEST_CASE(hard_link_count_for_file)
{
TEST_CHECK(hard_link_count(StaticEnv::File) == 1);
std::error_code ec;
TEST_CHECK(hard_link_count(StaticEnv::File, ec) == 1);
}
TEST_CASE(hard_link_count_for_directory)
{
uintmax_t DirExpect = 3; // hard link from . .. and Dir2
uintmax_t Dir3Expect = 2; // hard link from . ..
uintmax_t DirExpectAlt = DirExpect;
uintmax_t Dir3ExpectAlt = Dir3Expect;
#if defined(__APPLE__)
// Filesystems formatted with case sensitive hfs+ behave unixish as
// expected. Normal hfs+ filesystems report the number of directory
// entries instead.
DirExpectAlt = 5; // . .. Dir2 file1 file2
Dir3Expect = 3; // . .. file5
#endif
TEST_CHECK(hard_link_count(StaticEnv::Dir) == DirExpect ||
hard_link_count(StaticEnv::Dir) == DirExpectAlt ||
hard_link_count(StaticEnv::Dir) == 1);
TEST_CHECK(hard_link_count(StaticEnv::Dir3) == Dir3Expect ||
hard_link_count(StaticEnv::Dir3) == Dir3ExpectAlt ||
hard_link_count(StaticEnv::Dir3) == 1);
std::error_code ec;
TEST_CHECK(hard_link_count(StaticEnv::Dir, ec) == DirExpect ||
hard_link_count(StaticEnv::Dir, ec) == DirExpectAlt ||
hard_link_count(StaticEnv::Dir) == 1);
TEST_CHECK(hard_link_count(StaticEnv::Dir3, ec) == Dir3Expect ||
hard_link_count(StaticEnv::Dir3, ec) == Dir3ExpectAlt ||
hard_link_count(StaticEnv::Dir3) == 1);
}
TEST_CASE(hard_link_count_increments_test)
{
scoped_test_env env;
const path file = env.create_file("file", 42);
TEST_CHECK(hard_link_count(file) == 1);
env.create_hardlink(file, "file_hl");
TEST_CHECK(hard_link_count(file) == 2);
}
TEST_CASE(hard_link_count_error_cases)
{
const path testCases[] = {
StaticEnv::BadSymlink,
StaticEnv::DNE
};
const uintmax_t expect = static_cast<uintmax_t>(-1);
for (auto& TC : testCases) {
std::error_code ec;
TEST_CHECK(hard_link_count(TC, ec) == expect);
TEST_CHECK(ec);
}
}
TEST_SUITE_END()
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