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transmission/tests/libtransmission/test-fixtures.h

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// This file Copyright (C) 2013-2022 Mnemosyne LLC.
// It may be used under GPLv2 (SPDX: GPL-2.0), GPLv3 (SPDX: GPL-3.0),
// or any future license endorsed by Mnemosyne LLC.
// License text can be found in the licenses/ folder.
#pragma once
#include <chrono>
#include <cstdlib> // getenv()
#include <cstring> // strlen()
#include <memory>
#include <mutex> // std::once_flag()
#include <string>
#include <thread>
#include "crypto-utils.h" // tr_base64_decode()
#include "error.h"
#include "file.h" // tr_sys_file_*()
#include "platform.h" // TR_PATH_DELIMITER
#include "quark.h"
#include "torrent.h"
#include "trevent.h" // tr_amInEventThread()
#include "utils.h"
#include "variant.h"
#include "gtest/gtest.h"
namespace libtransmission
{
namespace test
{
inline std::string makeString(char*&& s)
{
auto const ret = std::string(s != nullptr ? s : "");
tr_free(s);
return ret;
}
inline bool waitFor(std::function<bool()> const& test, int msec)
{
auto const deadline = std::chrono::milliseconds{ msec };
auto const begin = std::chrono::steady_clock::now();
for (;;)
{
if (test())
{
return true;
}
if ((std::chrono::steady_clock::now() - begin) >= deadline)
{
return false;
}
tr_wait_msec(10);
}
}
class Sandbox
{
public:
Sandbox()
: parent_dir_{ get_default_parent_dir() }
, sandbox_dir_{ create_sandbox(parent_dir_, "transmission-test-XXXXXX") }
{
}
~Sandbox()
{
rimraf(sandbox_dir_);
}
std::string const& path() const
{
return sandbox_dir_;
}
protected:
static std::string get_default_parent_dir()
{
auto* path = getenv("TMPDIR");
if (path != NULL)
{
return path;
}
tr_error* error = nullptr;
path = tr_sys_dir_get_current(&error);
if (path != nullptr)
{
std::string const ret = path;
tr_free(path);
return ret;
}
std::cerr << "tr_sys_dir_get_current error: '" << error->message << "'" << std::endl;
tr_error_free(error);
return {};
}
static std::string create_sandbox(std::string const& parent_dir, std::string const& tmpl)
{
auto path = tr_strvPath(parent_dir, tmpl);
tr_sys_dir_create_temp(std::data(path), nullptr);
tr_sys_path_native_separators(std::data(path));
return path;
}
static auto get_folder_files(std::string const& path)
{
std::vector<std::string> ret;
tr_sys_path_info info;
if (tr_sys_path_get_info(path.data(), 0, &info, nullptr) && (info.type == TR_SYS_PATH_IS_DIRECTORY))
{
auto const odir = tr_sys_dir_open(path.data(), nullptr);
if (odir != TR_BAD_SYS_DIR)
{
char const* name;
while ((name = tr_sys_dir_read_name(odir, nullptr)) != nullptr)
{
if (strcmp(name, ".") != 0 && strcmp(name, "..") != 0)
{
ret.push_back(tr_strvPath(path, name));
}
}
tr_sys_dir_close(odir, nullptr);
}
}
return ret;
}
static void rimraf(std::string const& path, bool verbose = false)
{
for (auto const& child : get_folder_files(path))
{
rimraf(child, verbose);
}
if (verbose)
{
std::cerr << "cleanup: removing '" << path << "'" << std::endl;
}
tr_sys_path_remove(path.data(), nullptr);
}
private:
std::string const parent_dir_;
std::string const sandbox_dir_;
};
class SandboxedTest : public ::testing::Test
{
protected:
std::string sandboxDir() const
{
return sandbox_.path();
}
auto currentTestName() const
{
auto const* i = ::testing::UnitTest::GetInstance()->current_test_info();
auto child = std::string(i->test_suite_name());
child += '_';
child += i->name();
return child;
}
void buildParentDir(std::string const& path) const
{
auto const tmperr = errno;
auto const dir = makeString(tr_sys_path_dirname(path.c_str(), nullptr));
tr_error* error = nullptr;
tr_sys_dir_create(dir.data(), TR_SYS_DIR_CREATE_PARENTS, 0700, &error);
EXPECT_EQ(nullptr, error) << "path[" << path << "] dir[" << dir << "] " << error->code << ", " << error->message;
errno = tmperr;
}
static void blockingFileWrite(tr_sys_file_t fd, void const* data, size_t data_len)
{
uint64_t n_left = data_len;
auto const* left = static_cast<uint8_t const*>(data);
while (n_left > 0)
{
uint64_t n = {};
tr_error* error = nullptr;
if (!tr_sys_file_write(fd, left, n_left, &n, &error))
{
fprintf(stderr, "Error writing file: '%s'\n", error->message);
tr_error_free(error);
break;
}
left += n;
n_left -= n;
}
}
void createTmpfileWithContents(std::string& tmpl, void const* payload, size_t n) const
{
auto const tmperr = errno;
buildParentDir(tmpl);
// NOLINTNEXTLINE(clang-analyzer-cplusplus.InnerPointer)
auto const fd = tr_sys_file_open_temp(&tmpl.front(), nullptr);
blockingFileWrite(fd, payload, n);
tr_sys_file_close(fd, nullptr);
sync();
errno = tmperr;
}
void createFileWithContents(std::string const& path, void const* payload, size_t n) const
{
auto const tmperr = errno;
buildParentDir(path);
auto const fd = tr_sys_file_open(
path.c_str(),
TR_SYS_FILE_WRITE | TR_SYS_FILE_CREATE | TR_SYS_FILE_TRUNCATE,
0600,
nullptr);
blockingFileWrite(fd, payload, n);
tr_sys_file_close(fd, nullptr);
sync();
errno = tmperr;
}
void createFileWithContents(std::string const& path, void const* payload) const
{
createFileWithContents(path, payload, strlen(static_cast<char const*>(payload)));
}
bool verbose = false;
void sync() const
{
#ifndef _WIN32
::sync();
#endif
}
private:
Sandbox sandbox_;
};
inline void ensureFormattersInited()
{
static constexpr int MEM_K = 1024;
static char const constexpr* const MEM_K_STR = "KiB";
static char const constexpr* const MEM_M_STR = "MiB";
static char const constexpr* const MEM_G_STR = "GiB";
static char const constexpr* const MEM_T_STR = "TiB";
static constexpr int DISK_K = 1000;
static char const constexpr* const DISK_K_STR = "kB";
static char const constexpr* const DISK_M_STR = "MB";
static char const constexpr* const DISK_G_STR = "GB";
static char const constexpr* const DISK_T_STR = "TB";
static constexpr int SPEED_K = 1000;
static char const constexpr* const SPEED_K_STR = "kB/s";
static char const constexpr* const SPEED_M_STR = "MB/s";
static char const constexpr* const SPEED_G_STR = "GB/s";
static char const constexpr* const SPEED_T_STR = "TB/s";
static std::once_flag flag;
std::call_once(
flag,
[]()
{
tr_formatter_mem_init(MEM_K, MEM_K_STR, MEM_M_STR, MEM_G_STR, MEM_T_STR);
tr_formatter_size_init(DISK_K, DISK_K_STR, DISK_M_STR, DISK_G_STR, DISK_T_STR);
tr_formatter_speed_init(SPEED_K, SPEED_K_STR, SPEED_M_STR, SPEED_G_STR, SPEED_T_STR);
});
}
class SessionTest : public SandboxedTest
{
private:
std::shared_ptr<tr_variant> settings_;
tr_session* sessionInit(tr_variant* settings)
{
ensureFormattersInited();
// download dir
auto sv = std::string_view{};
auto q = TR_KEY_download_dir;
auto const download_dir = tr_variantDictFindStrView(settings, q, &sv) ? tr_strvPath(sandboxDir(), sv) :
tr_strvPath(sandboxDir(), "Downloads");
tr_sys_dir_create(download_dir.data(), TR_SYS_DIR_CREATE_PARENTS, 0700, nullptr);
tr_variantDictAddStr(settings, q, download_dir.data());
// incomplete dir
q = TR_KEY_incomplete_dir;
auto const incomplete_dir = tr_variantDictFindStrView(settings, q, &sv) ? tr_strvPath(sandboxDir(), sv) :
tr_strvPath(sandboxDir(), "Incomplete");
tr_variantDictAddStr(settings, q, incomplete_dir.data());
// blocklists
auto const blocklist_dir = tr_strvPath(sandboxDir(), "blocklists");
tr_sys_dir_create(blocklist_dir.data(), TR_SYS_DIR_CREATE_PARENTS, 0700, nullptr);
// fill in any missing settings
q = TR_KEY_port_forwarding_enabled;
if (tr_variantDictFind(settings, q) == nullptr)
{
tr_variantDictAddBool(settings, q, false);
}
q = TR_KEY_dht_enabled;
if (tr_variantDictFind(settings, q) == nullptr)
{
tr_variantDictAddBool(settings, q, false);
}
q = TR_KEY_message_level;
if (tr_variantDictFind(settings, q) == nullptr)
{
tr_variantDictAddInt(settings, q, verbose ? TR_LOG_DEBUG : TR_LOG_ERROR);
}
return tr_sessionInit(sandboxDir().data(), !verbose, settings);
}
void sessionClose(tr_session* session)
{
tr_sessionClose(session);
tr_logFreeQueue(tr_logGetQueue());
}
protected:
tr_torrent* zeroTorrentInit() const
{
// 1048576 files-filled-with-zeroes/1048576
// 4096 files-filled-with-zeroes/4096
// 512 files-filled-with-zeroes/512
char const* metainfo_base64 =
"ZDg6YW5ub3VuY2UzMTpodHRwOi8vd3d3LmV4YW1wbGUuY29tL2Fubm91bmNlMTA6Y3JlYXRlZCBi"
"eTI1OlRyYW5zbWlzc2lvbi8yLjYxICgxMzQwNykxMzpjcmVhdGlvbiBkYXRlaTEzNTg3MDQwNzVl"
"ODplbmNvZGluZzU6VVRGLTg0OmluZm9kNTpmaWxlc2xkNjpsZW5ndGhpMTA0ODU3NmU0OnBhdGhs"
"NzoxMDQ4NTc2ZWVkNjpsZW5ndGhpNDA5NmU0OnBhdGhsNDo0MDk2ZWVkNjpsZW5ndGhpNTEyZTQ6"
"cGF0aGwzOjUxMmVlZTQ6bmFtZTI0OmZpbGVzLWZpbGxlZC13aXRoLXplcm9lczEyOnBpZWNlIGxl"
"bmd0aGkzMjc2OGU2OnBpZWNlczY2MDpRiEMYSbRhMVL9e9umo/8KT9ZCS1GIQxhJtGExUv1726aj"
"/wpP1kJLUYhDGEm0YTFS/XvbpqP/Ck/WQktRiEMYSbRhMVL9e9umo/8KT9ZCS1GIQxhJtGExUv17"
"26aj/wpP1kJLUYhDGEm0YTFS/XvbpqP/Ck/WQktRiEMYSbRhMVL9e9umo/8KT9ZCS1GIQxhJtGEx"
"Uv1726aj/wpP1kJLUYhDGEm0YTFS/XvbpqP/Ck/WQktRiEMYSbRhMVL9e9umo/8KT9ZCS1GIQxhJ"
"tGExUv1726aj/wpP1kJLUYhDGEm0YTFS/XvbpqP/Ck/WQktRiEMYSbRhMVL9e9umo/8KT9ZCS1GI"
"QxhJtGExUv1726aj/wpP1kJLUYhDGEm0YTFS/XvbpqP/Ck/WQktRiEMYSbRhMVL9e9umo/8KT9ZC"
"S1GIQxhJtGExUv1726aj/wpP1kJLUYhDGEm0YTFS/XvbpqP/Ck/WQktRiEMYSbRhMVL9e9umo/8K"
"T9ZCS1GIQxhJtGExUv1726aj/wpP1kJLUYhDGEm0YTFS/XvbpqP/Ck/WQktRiEMYSbRhMVL9e9um"
"o/8KT9ZCS1GIQxhJtGExUv1726aj/wpP1kJLUYhDGEm0YTFS/XvbpqP/Ck/WQktRiEMYSbRhMVL9"
"e9umo/8KT9ZCS1GIQxhJtGExUv1726aj/wpP1kJLUYhDGEm0YTFS/XvbpqP/Ck/WQktRiEMYSbRh"
"MVL9e9umo/8KT9ZCS1GIQxhJtGExUv1726aj/wpP1kJLUYhDGEm0YTFS/XvbpqP/Ck/WQktRiEMY"
"SbRhMVL9e9umo/8KT9ZCS1GIQxhJtGExUv1726aj/wpP1kJLOlf5A+Tz30nMBVuNM2hpV3wg/103"
"OnByaXZhdGVpMGVlZQ==";
// create the torrent ctor
auto const metainfo = tr_base64_decode(metainfo_base64);
EXPECT_LT(0, std::size(metainfo));
auto* ctor = tr_ctorNew(session_);
tr_error* error = nullptr;
EXPECT_TRUE(tr_ctorSetMetainfo(ctor, std::data(metainfo), std::size(metainfo), &error));
EXPECT_EQ(nullptr, error);
tr_ctorSetPaused(ctor, TR_FORCE, true);
// create the torrent
auto* const tor = tr_torrentNew(ctor, nullptr);
EXPECT_NE(nullptr, tor);
// cleanup
tr_ctorFree(ctor);
return tor;
}
void zeroTorrentPopulate(tr_torrent* tor, bool complete)
{
for (size_t i = 0, n = tr_torrentFileCount(tor); i < n; ++i)
{
auto const file = tr_torrentFile(tor, i);
auto path = (!complete && i == 0) ? tr_strvJoin(tor->currentDir().sv(), TR_PATH_DELIMITER_STR, file.name, ".part") :
tr_strvJoin(tor->currentDir().sv(), TR_PATH_DELIMITER_STR, file.name);
auto const dirname = makeString(tr_sys_path_dirname(path.c_str(), nullptr));
tr_sys_dir_create(dirname.data(), TR_SYS_DIR_CREATE_PARENTS, 0700, nullptr);
auto fd = tr_sys_file_open(
path.c_str(),
TR_SYS_FILE_WRITE | TR_SYS_FILE_CREATE | TR_SYS_FILE_TRUNCATE,
0600,
nullptr);
for (uint64_t j = 0; j < file.length; ++j)
{
tr_sys_file_write(fd, (!complete && i == 0 && j < tor->pieceSize()) ? "\1" : "\0", 1, nullptr, nullptr);
}
tr_sys_file_close(fd, nullptr);
path = makeString(tr_torrentFindFile(tor, i));
auto const err = errno;
EXPECT_TRUE(tr_sys_path_exists(path.c_str(), nullptr));
errno = err;
}
sync();
blockingTorrentVerify(tor);
if (complete)
{
EXPECT_EQ(0, tr_torrentStat(tor)->leftUntilDone);
}
else
{
EXPECT_EQ(tor->pieceSize(), tr_torrentStat(tor)->leftUntilDone);
}
}
void blockingTorrentVerify(tr_torrent* tor)
{
EXPECT_NE(nullptr, tor->session);
EXPECT_FALSE(tr_amInEventThread(tor->session));
auto constexpr onVerifyDone = [](tr_torrent*, bool, void* done) noexcept
{
*static_cast<bool*>(done) = true;
};
bool done = false;
tr_torrentVerify(tor, onVerifyDone, &done);
auto test = [&done]()
{
return done;
};
EXPECT_TRUE(waitFor(test, 2000));
}
tr_session* session_ = nullptr;
tr_variant* settings()
{
if (!settings_)
{
auto* settings = new tr_variant{};
tr_variantInitDict(settings, 10);
auto constexpr deleter = [](tr_variant* v)
{
tr_variantFree(v);
delete v;
};
settings_.reset(settings, deleter);
}
return settings_.get();
}
virtual void SetUp() override
{
SandboxedTest::SetUp();
session_ = sessionInit(settings());
}
virtual void TearDown() override
{
sessionClose(session_);
session_ = nullptr;
settings_.reset();
SandboxedTest::TearDown();
}
};
} // namespace test
} // namespace libtransmission
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