mirror of
https://github.com/autc04/Retro68.git
synced 2024-09-07 13:54:33 +00:00
154 lines
4.4 KiB
C++
154 lines
4.4 KiB
C++
// -*- C++ -*-
|
|
// Filesystem utils for the C++ library testsuite.
|
|
//
|
|
// Copyright (C) 2014-2019 Free Software Foundation, Inc.
|
|
//
|
|
// This file is part of the GNU ISO C++ Library. This library is free
|
|
// software; you can redistribute it and/or modify it under the
|
|
// terms of the GNU General Public License as published by the
|
|
// Free Software Foundation; either version 3, or (at your option)
|
|
// any later version.
|
|
//
|
|
// This library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License along
|
|
// with this library; see the file COPYING3. If not see
|
|
// <http://www.gnu.org/licenses/>.
|
|
//
|
|
|
|
#ifndef _TESTSUITE_FS_H
|
|
#define _TESTSUITE_FS_H 1
|
|
|
|
// Assume we want std::filesystem in C++17, unless USE_FILESYSTEM_TS defined:
|
|
#if __cplusplus >= 201703L && ! defined USE_FILESYSTEM_TS
|
|
#include <filesystem>
|
|
namespace test_fs = std::filesystem;
|
|
#else
|
|
#include <experimental/filesystem>
|
|
namespace test_fs = std::experimental::filesystem;
|
|
#endif
|
|
#include <fstream>
|
|
#include <string>
|
|
#include <cstdio>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
namespace __gnu_test
|
|
{
|
|
#define PATH_CHK(p1, p2, fn) \
|
|
if ( p1.fn() != p2.fn() ) \
|
|
throw test_fs::filesystem_error("comparing '" #fn "' failed", p1, p2, \
|
|
std::make_error_code(std::errc::invalid_argument) )
|
|
|
|
void
|
|
compare_paths(const test_fs::path& p1,
|
|
const test_fs::path& p2)
|
|
{
|
|
PATH_CHK( p1, p2, native );
|
|
PATH_CHK( p1, p2, string );
|
|
PATH_CHK( p1, p2, empty );
|
|
PATH_CHK( p1, p2, has_root_path );
|
|
PATH_CHK( p1, p2, has_root_name );
|
|
PATH_CHK( p1, p2, has_root_directory );
|
|
PATH_CHK( p1, p2, has_relative_path );
|
|
PATH_CHK( p1, p2, has_parent_path );
|
|
PATH_CHK( p1, p2, has_filename );
|
|
PATH_CHK( p1, p2, has_stem );
|
|
PATH_CHK( p1, p2, has_extension );
|
|
PATH_CHK( p1, p2, is_absolute );
|
|
PATH_CHK( p1, p2, is_relative );
|
|
auto d1 = std::distance(p1.begin(), p1.end());
|
|
auto d2 = std::distance(p2.begin(), p2.end());
|
|
if( d1 != d2 )
|
|
throw test_fs::filesystem_error(
|
|
"distance(begin, end)", p1, p2,
|
|
std::make_error_code(std::errc::invalid_argument) );
|
|
}
|
|
|
|
const std::string test_paths[] = {
|
|
"", "/", "//", "/.", "/./", "/a", "/a/", "/a//", "/a/b/c/d", "/a//b",
|
|
"a", "a/b", "a/b/", "a/b/c", "a/b/c.d", "a/b/..", "a/b/c.", "a/b/.c"
|
|
};
|
|
|
|
test_fs::path
|
|
root_path()
|
|
{
|
|
#if defined(__MING32__) || defined(__MINGW64__)
|
|
return L"c:/";
|
|
#else
|
|
return "/";
|
|
#endif
|
|
}
|
|
|
|
// This is NOT supposed to be a secure way to get a unique name!
|
|
// We just need a path that doesn't exist for testing purposes.
|
|
test_fs::path
|
|
nonexistent_path(std::string file = __builtin_FILE())
|
|
{
|
|
// Include the caller's filename to help identify tests that fail to
|
|
// clean up the files they create.
|
|
// Remove .cc extension:
|
|
if (file.length() > 3 && file.compare(file.length() - 3, 3, ".cc") == 0)
|
|
file.resize(file.length() - 3);
|
|
// And directory:
|
|
auto pos = file.find_last_of("/\\");
|
|
if (pos != file.npos)
|
|
file.erase(0, pos+1);
|
|
|
|
test_fs::path p;
|
|
#if defined(_GNU_SOURCE) || _XOPEN_SOURCE >= 500 || _POSIX_C_SOURCE >= 200112L
|
|
char tmp[] = "filesystem-test.XXXXXX";
|
|
int fd = ::mkstemp(tmp);
|
|
if (fd == -1)
|
|
throw test_fs::filesystem_error("mkstemp failed",
|
|
std::error_code(errno, std::generic_category()));
|
|
::unlink(tmp);
|
|
::close(fd);
|
|
if (!file.empty())
|
|
file.insert(0, 1, '-');
|
|
file.insert(0, tmp);
|
|
p = file;
|
|
#else
|
|
if (file.length() > 64)
|
|
file.resize(64);
|
|
char buf[128];
|
|
static int counter;
|
|
#if _GLIBCXX_USE_C99_STDIO
|
|
std::snprintf(buf, 128,
|
|
#else
|
|
std::sprintf(buf,
|
|
#endif
|
|
"filesystem-test.%d.%lu-%s", counter++, (unsigned long) ::getpid(),
|
|
file.c_str());
|
|
p = buf;
|
|
#endif
|
|
return p;
|
|
}
|
|
|
|
// RAII helper to remove a file on scope exit.
|
|
struct scoped_file
|
|
{
|
|
using path_type = test_fs::path;
|
|
|
|
enum adopt_file_t { adopt_file };
|
|
|
|
explicit
|
|
scoped_file(const path_type& p = nonexistent_path()) : path(p)
|
|
{ std::ofstream{p.c_str()}; }
|
|
|
|
scoped_file(path_type p, adopt_file_t) : path(p) { }
|
|
|
|
~scoped_file() { if (!path.empty()) remove(path); }
|
|
|
|
scoped_file(scoped_file&&) = default;
|
|
scoped_file& operator=(scoped_file&&) = default;
|
|
|
|
path_type path;
|
|
};
|
|
|
|
} // namespace __gnu_test
|
|
#endif
|