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// Copyright (c) 2011-2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
//
#include <test/util/setup_common.h>
#include <util/fs.h>
#include <util/fs_helpers.h>
#include <boost/test/unit_test.hpp>
#include <fstream>
#include <ios>
#include <string>
BOOST_FIXTURE_TEST_SUITE(fs_tests, BasicTestingSetup)
BOOST_AUTO_TEST_CASE(fsbridge_pathtostring)
{
std::string u8_str = "fs_tests_₿_🏃";
std::u8string str8{u8"fs_tests_₿_🏃"};
BOOST_CHECK_EQUAL(fs::PathToString(fs::PathFromString(u8_str)), u8_str);
BOOST_CHECK_EQUAL(fs::u8path(u8_str).utf8string(), u8_str);
BOOST_CHECK_EQUAL(fs::path(str8).utf8string(), u8_str);
BOOST_CHECK(fs::path(str8).u8string() == str8);
BOOST_CHECK_EQUAL(fs::PathFromString(u8_str).utf8string(), u8_str);
BOOST_CHECK_EQUAL(fs::PathToString(fs::u8path(u8_str)), u8_str);
#ifndef WIN32
// On non-windows systems, verify that arbitrary byte strings containing
// invalid UTF-8 can be round tripped successfully with PathToString and
// PathFromString. On non-windows systems, paths are just byte strings so
// these functions do not do any encoding. On windows, paths are Unicode,
// and these functions do encoding and decoding, so the behavior of this
// test would be undefined.
std::string invalid_u8_str = "\xf0";
BOOST_CHECK_EQUAL(invalid_u8_str.size(), 1);
BOOST_CHECK_EQUAL(fs::PathToString(fs::PathFromString(invalid_u8_str)), invalid_u8_str);
#endif
}
BOOST_AUTO_TEST_CASE(fsbridge_stem)
{
std::string test_filename = "fs_tests_₿_🏃.dat";
std::string expected_stem = "fs_tests_₿_🏃";
BOOST_CHECK_EQUAL(fs::PathToString(fs::PathFromString(test_filename).stem()), expected_stem);
}
BOOST_AUTO_TEST_CASE(fsbridge_fstream)
{
fs::path tmpfolder = m_args.GetDataDirBase();
// tmpfile1 should be the same as tmpfile2
fs::path tmpfile1 = tmpfolder / fs::u8path("fs_tests_₿_🏃");
fs::path tmpfile2 = tmpfolder / fs::path(u8"fs_tests_₿_🏃");
{
std::ofstream file{tmpfile1};
file << "bitcoin";
}
{
std::ifstream file{tmpfile2};
std::string input_buffer;
file >> input_buffer;
BOOST_CHECK_EQUAL(input_buffer, "bitcoin");
}
{
std::ifstream file{tmpfile1, std::ios_base::in | std::ios_base::ate};
std::string input_buffer;
file >> input_buffer;
BOOST_CHECK_EQUAL(input_buffer, "");
}
{
std::ofstream file{tmpfile2, std::ios_base::out | std::ios_base::app};
file << "tests";
}
{
std::ifstream file{tmpfile1};
std::string input_buffer;
file >> input_buffer;
BOOST_CHECK_EQUAL(input_buffer, "bitcointests");
}
{
std::ofstream file{tmpfile2, std::ios_base::out | std::ios_base::trunc};
file << "bitcoin";
}
{
std::ifstream file{tmpfile1};
std::string input_buffer;
file >> input_buffer;
BOOST_CHECK_EQUAL(input_buffer, "bitcoin");
}
{
// Join an absolute path and a relative path.
fs::path p = fsbridge::AbsPathJoin(tmpfolder, fs::u8path("fs_tests_₿_🏃"));
BOOST_CHECK(p.is_absolute());
BOOST_CHECK_EQUAL(tmpfile1, p);
}
{
// Join two absolute paths.
fs::path p = fsbridge::AbsPathJoin(tmpfile1, tmpfile2);
BOOST_CHECK(p.is_absolute());
BOOST_CHECK_EQUAL(tmpfile2, p);
}
{
// Ensure joining with empty paths does not add trailing path components.
BOOST_CHECK_EQUAL(tmpfile1, fsbridge::AbsPathJoin(tmpfile1, ""));
BOOST_CHECK_EQUAL(tmpfile1, fsbridge::AbsPathJoin(tmpfile1, {}));
}
}
BOOST_AUTO_TEST_CASE(rename)
{
const fs::path tmpfolder{m_args.GetDataDirBase()};
const fs::path path1{tmpfolder / "a"};
const fs::path path2{tmpfolder / "b"};
const std::string path1_contents{"1111"};
const std::string path2_contents{"2222"};
{
std::ofstream file{path1};
file << path1_contents;
}
{
std::ofstream file{path2};
file << path2_contents;
}
// Rename path1 -> path2.
BOOST_CHECK(RenameOver(path1, path2));
BOOST_CHECK(!fs::exists(path1));
{
std::ifstream file{path2};
std::string contents;
file >> contents;
BOOST_CHECK_EQUAL(contents, path1_contents);
}
fs::remove(path2);
}
#ifndef __MINGW64__ // no symlinks on mingw
BOOST_AUTO_TEST_CASE(create_directories)
{
// Test fs::create_directories workaround.
const fs::path tmpfolder{m_args.GetDataDirBase()};
const fs::path dir{tmpfolder / "a"};
fs::create_directory(dir);
BOOST_CHECK(fs::exists(dir));
BOOST_CHECK(fs::is_directory(dir));
BOOST_CHECK(!fs::create_directories(dir));
const fs::path symlink{tmpfolder / "b"};
fs::create_directory_symlink(dir, symlink);
BOOST_CHECK(fs::exists(symlink));
BOOST_CHECK(fs::is_symlink(symlink));
BOOST_CHECK(fs::is_directory(symlink));
BOOST_CHECK(!fs::create_directories(symlink));
fs::remove(symlink);
fs::remove(dir);
}
#endif // __MINGW64__
BOOST_AUTO_TEST_SUITE_END()
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