transmission/tests/libtransmission/move-test.cc

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// This file Copyright (C) 2013-2022 Mnemosyne LLC.
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// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
// or any future license endorsed by Mnemosyne LLC.
// License text can be found in the licenses/ folder.
#include <iostream>
#include <memory>
#include <string>
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#include <string_view>
#include <utility>
#include <libtransmission/transmission.h>
#include <libtransmission/cache.h> // tr_cacheWriteBlock()
#include <libtransmission/file.h> // tr_sys_path_*()
#include <libtransmission/tr-strbuf.h>
#include <libtransmission/variant.h>
#include "test-fixtures.h"
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using namespace std::literals;
namespace libtransmission::test
{
auto constexpr MaxWaitMsec = 5000;
class IncompleteDirTest
: public SessionTest
, public ::testing::WithParamInterface<std::pair<std::string, std::string>>
{
protected:
void SetUp() override
{
auto const download_dir = GetParam().second;
tr_variantDictAddStr(settings(), TR_KEY_download_dir, download_dir.c_str());
auto const incomplete_dir = GetParam().first;
tr_variantDictAddStr(settings(), TR_KEY_incomplete_dir, incomplete_dir.c_str());
tr_variantDictAddBool(settings(), TR_KEY_incomplete_dir_enabled, true);
SessionTest::SetUp();
}
static auto constexpr MaxWaitMsec = 3000;
};
TEST_P(IncompleteDirTest, incompleteDir)
{
auto const* download_dir = tr_sessionGetDownloadDir(session_);
auto const* incomplete_dir = tr_sessionGetIncompleteDir(session_);
// init an incomplete torrent.
// the test zero_torrent will be missing its first piece.
auto* const tor = zeroTorrentInit(ZeroTorrentState::Partial);
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auto path = tr_pathbuf{};
path.assign(incomplete_dir, '/', tr_torrentFile(tor, 0).name, tr_torrent_files::PartialFileSuffix);
EXPECT_EQ(path, tr_torrentFindFile(tor, 0));
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path.assign(incomplete_dir, '/', tr_torrentFile(tor, 1).name);
EXPECT_EQ(path, tr_torrentFindFile(tor, 1));
EXPECT_EQ(tor->piece_size(), tr_torrentStat(tor)->leftUntilDone);
// auto constexpr completeness_unset = tr_completeness { -1 };
// auto completeness = completeness_unset;
int completeness = -1;
auto const zeroes_completeness_func =
[](tr_torrent* /*torrent*/, tr_completeness c, bool /*was_running*/, void* vc) noexcept
{
*static_cast<tr_completeness*>(vc) = c;
};
tr_sessionSetCompletenessCallback(session_, zeroes_completeness_func, &completeness);
struct TestIncompleteDirData
{
tr_session* session = {};
tr_torrent* tor = {};
tr_block_index_t block = {};
tr_piece_index_t pieceIndex = {};
std::unique_ptr<Cache::BlockData> buf = {};
bool done = {};
};
auto const test_incomplete_dir_threadfunc = [](TestIncompleteDirData* data) noexcept
{
data->session->cache->write_block(data->tor->id(), data->block, std::move(data->buf));
tr_torrentGotBlock(data->tor, data->block);
data->done = true;
};
// now finish writing it
{
auto data = TestIncompleteDirData{};
data.session = session_;
data.tor = tor;
auto const [begin, end] = tor->block_span_for_piece(data.pieceIndex);
for (tr_block_index_t block_index = begin; block_index < end; ++block_index)
{
data.buf = std::make_unique<Cache::BlockData>(tr_block_info::BlockSize);
std::fill_n(std::data(*data.buf), tr_block_info::BlockSize, '\0');
data.block = block_index;
data.done = false;
session_->runInSessionThread(test_incomplete_dir_threadfunc, &data);
auto const test = [&data]()
{
return data.done;
};
EXPECT_TRUE(waitFor(test, MaxWaitMsec));
}
}
blockingTorrentVerify(tor);
EXPECT_EQ(0, tr_torrentStat(tor)->leftUntilDone);
auto test = [&completeness]()
{
return completeness != -1;
};
EXPECT_TRUE(waitFor(test, MaxWaitMsec));
EXPECT_EQ(TR_SEED, completeness);
auto const n = tr_torrentFileCount(tor);
for (tr_file_index_t i = 0; i < n; ++i)
{
auto const expected = tr_pathbuf{ download_dir, '/', tr_torrentFile(tor, i).name };
EXPECT_EQ(expected, tr_torrentFindFile(tor, i));
}
// cleanup
tr_torrentRemove(tor, true, nullptr, nullptr);
}
INSTANTIATE_TEST_SUITE_P(
IncompleteDir,
IncompleteDirTest,
::testing::Values(
// what happens when incompleteDir is a subdir of downloadDir
std::make_pair(std::string{ "Downloads/Incomplete" }, std::string{ "Downloads" }),
// test what happens when downloadDir is a subdir of incompleteDir
std::make_pair(std::string{ "Downloads" }, std::string{ "Downloads/Complete" }),
// test what happens when downloadDir and incompleteDir are siblings
std::make_pair(std::string{ "Incomplete" }, std::string{ "Downloads" })));
/***
****
***/
using MoveTest = SessionTest;
TEST_F(MoveTest, setLocation)
{
auto const target_dir = tr_pathbuf{ session_->configDir(), "/target"sv };
tr_sys_dir_create(target_dir.data(), TR_SYS_DIR_CREATE_PARENTS, 0777, nullptr);
// init a torrent.
auto* const tor = zeroTorrentInit(ZeroTorrentState::Complete);
blockingTorrentVerify(tor);
EXPECT_EQ(0, tr_torrentStat(tor)->leftUntilDone);
// now move it
auto state = int{ -1 };
tr_torrentSetLocation(tor, target_dir, true, nullptr, &state);
auto test = [&state]()
{
return state == TR_LOC_DONE;
};
EXPECT_TRUE(waitFor(test, MaxWaitMsec));
EXPECT_EQ(TR_LOC_DONE, state);
// confirm the torrent is still complete after being moved
blockingTorrentVerify(tor);
EXPECT_EQ(0, tr_torrentStat(tor)->leftUntilDone);
// confirm the files really got moved
sync();
auto const n = tr_torrentFileCount(tor);
for (tr_file_index_t i = 0; i < n; ++i)
{
auto const expected = tr_pathbuf{ target_dir, '/', tr_torrentFile(tor, i).name };
EXPECT_EQ(expected, tr_torrentFindFile(tor, i));
}
// cleanup
tr_torrentRemove(tor, true, nullptr, nullptr);
}
} // namespace libtransmission::test