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premiere-libtorrent/simulation/test_auto_manage.cpp

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/*
Copyright (c) 2015, Arvid Norberg
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the distribution.
* Neither the name of the author nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#include "libtorrent/session.hpp"
#include "libtorrent/torrent_handle.hpp"
#include "libtorrent/settings_pack.hpp"
#include "libtorrent/alert_types.hpp"
#include "libtorrent/deadline_timer.hpp"
#include "settings.hpp"
#include "utils.hpp"
#include "create_torrent.hpp"
#include "simulator/simulator.hpp"
#include "simulator/utils.hpp" // for timer
#include <iostream>
using namespace sim;
using namespace lt;
const int num_torrents = 10;
using sim::asio::ip::address_v4;
// this is the general template for these tests. create the session with custom
// settings (Settings), set up the test, by adding torrents with certain
// arguments (Setup), run the test and verify the end state (Test)
template <typename Settings, typename Setup, typename Test>
void run_test(Settings const& sett, Setup const& setup, Test const& test)
{
// setup the simulation
sim::default_config network_cfg;
sim::simulation sim{network_cfg};
std::unique_ptr<sim::asio::io_service> ios = make_io_service(sim, 0);
lt::session_proxy zombie;
// setup settings pack to use for the session (customization point)
lt::settings_pack pack = settings();
sett(pack);
// create session
std::shared_ptr<lt::session> ses = std::make_shared<lt::session>(pack, *ios);
// set up test, like adding torrents (customization point)
setup(*ses);
// set up a timer to fire later, to verify everything we expected to happen
// happened
sim::timer t(sim, lt::seconds((num_torrents + 1) * 60)
, [&](boost::system::error_code const& ec)
{
test(*ses);
// shut down
zombie = ses->abort();
ses.reset();
});
sim.run();
}
TORRENT_TEST(dont_count_slow_torrents)
{
run_test(
[](lt::settings_pack& sett) {
// session settings
sett.set_bool(lt::settings_pack::dont_count_slow_torrents, true);
sett.set_int(lt::settings_pack::active_downloads, 1);
sett.set_int(lt::settings_pack::active_seeds, 1);
},
[](lt::session& ses) {
// add torrents
for (int i = 0; i < num_torrents; ++i)
{
lt::add_torrent_params params = ::create_torrent(i, false);
params.flags |= lt::torrent_flags::auto_managed;
params.flags |= lt::torrent_flags::paused;
ses.async_add_torrent(params);
}
},
[](lt::session& ses) {
// verify result
std::vector<lt::alert*> alerts;
ses.pop_alerts(&alerts);
lt::time_point last = lt::time_point::min();
lt::time_point start_time = alerts[0]->timestamp();
int num_started = 0;
for (alert* a : alerts)
{
std::printf("%-3d %s\n", int(duration_cast<lt::seconds>(a->timestamp()
- start_time).count()), a->message().c_str());
if (alert_cast<torrent_resumed_alert>(a) == nullptr) continue;
lt::time_point t = a->timestamp();
if (last != lt::time_point::min())
{
// expect starting of new torrents to be spaced by 60 seconds
// the division by 2 is to allow some slack (it's integer
// division)
TEST_EQUAL(duration_cast<lt::seconds>(t - last).count() / 2, 60 / 2);
}
last = t;
++num_started;
}
TEST_EQUAL(num_started, num_torrents);
for (torrent_handle const& h : ses.get_torrents())
{
TEST_CHECK(h.status().flags & torrent_flags::auto_managed);
TEST_CHECK(!(h.status().flags & torrent_flags::paused));
}
});
}
TORRENT_TEST(count_slow_torrents)
{
run_test(
[](settings_pack& sett) {
// session settings
sett.set_bool(settings_pack::dont_count_slow_torrents, false);
sett.set_int(settings_pack::active_downloads, 1);
sett.set_int(settings_pack::active_seeds, 1);
},
[](lt::session& ses) {
// add torrents
for (int i = 0; i < num_torrents; ++i)
{
lt::add_torrent_params params = ::create_torrent(i, false);
params.flags |= torrent_flags::auto_managed;
params.flags |= torrent_flags::paused;
ses.async_add_torrent(params);
}
},
[](lt::session& ses) {
// verify result (only one should have been started, even though
// they're all idle)
std::vector<lt::alert*> alerts;
ses.pop_alerts(&alerts);
lt::time_point start_time = alerts[0]->timestamp();
int num_started = 0;
for (alert* a : alerts)
{
std::printf("%-3d %s\n", int(duration_cast<lt::seconds>(a->timestamp()
- start_time).count()), a->message().c_str());
if (alert_cast<torrent_resumed_alert>(a) == nullptr) continue;
++num_started;
}
TEST_EQUAL(num_started, 1);
num_started = 0;
for (torrent_handle const& h : ses.get_torrents())
{
TEST_CHECK(h.status().flags & torrent_flags::auto_managed);
num_started += !(h.status().flags & torrent_flags::paused);
}
TEST_EQUAL(num_started, 1);
});
}
TORRENT_TEST(force_stopped_download)
{
run_test(
[](settings_pack& sett) {
// session settings
sett.set_bool(settings_pack::dont_count_slow_torrents, true);
sett.set_int(settings_pack::active_downloads, 10);
sett.set_int(settings_pack::active_seeds, 10);
},
[](lt::session& ses) {
// add torrents
for (int i = 0; i < num_torrents; ++i)
{
lt::add_torrent_params params = ::create_torrent(i, false);
// torrents are paused and not auto-managed
params.flags &= ~torrent_flags::auto_managed;
params.flags |= torrent_flags::paused;
ses.async_add_torrent(params);
}
},
[](lt::session& ses) {
// verify result (none should have been started)
std::vector<lt::alert*> alerts;
ses.pop_alerts(&alerts);
lt::time_point start_time = alerts[0]->timestamp();
for (alert* a : alerts)
{
std::printf("%-3d %s\n", int(duration_cast<lt::seconds>(a->timestamp()
- start_time).count()), a->message().c_str());
// we don't expect any torrents being started or stopped, since
// they're all force stopped
TEST_CHECK(alert_cast<torrent_resumed_alert>(a) == nullptr);
TEST_CHECK(alert_cast<torrent_paused_alert>(a) == nullptr);
}
for (torrent_handle const& h : ses.get_torrents())
{
TEST_CHECK(!(h.status().flags & torrent_flags::auto_managed));
TEST_CHECK(h.status().flags & torrent_flags::paused);
}
});
}
TORRENT_TEST(force_started)
{
run_test(
[](settings_pack& sett) {
// session settings
sett.set_bool(settings_pack::dont_count_slow_torrents, false);
sett.set_int(settings_pack::active_downloads, 1);
sett.set_int(settings_pack::active_seeds, 1);
},
[](lt::session& ses) {
// add torrents
for (int i = 0; i < num_torrents; ++i)
{
lt::add_torrent_params params = ::create_torrent(i, false);
// torrents are started and not auto-managed
params.flags &= ~torrent_flags::auto_managed;
params.flags &= ~torrent_flags::paused;
ses.async_add_torrent(params);
}
},
[](lt::session& ses) {
// verify result (none should have been started)
std::vector<lt::alert*> alerts;
ses.pop_alerts(&alerts);
lt::time_point start_time = alerts[0]->timestamp();
for (alert* a : alerts)
{
std::printf("%-3d %s\n", int(duration_cast<lt::seconds>(a->timestamp()
- start_time).count()), a->message().c_str());
// we don't expect any torrents being started or stopped, since
// they're all force started
TEST_CHECK(alert_cast<torrent_resumed_alert>(a) == nullptr);
TEST_CHECK(alert_cast<torrent_paused_alert>(a) == nullptr);
}
for (torrent_handle const& h : ses.get_torrents())
{
TEST_CHECK(!(h.status().flags & torrent_flags::auto_managed));
TEST_CHECK(!(h.status().flags & torrent_flags::paused));
}
});
}
TORRENT_TEST(seed_limit)
{
run_test(
[](settings_pack& sett) {
// session settings
// set the seed limit to 3
sett.set_bool(settings_pack::dont_count_slow_torrents, false);
sett.set_int(settings_pack::active_checking, 1);
sett.set_int(settings_pack::active_seeds, 3);
},
[](lt::session& ses) {
// add torrents
// add 5 seeds
for (int i = 0; i < num_torrents; ++i)
{
lt::add_torrent_params params = ::create_torrent(i, true);
// torrents are paused and auto-managed
params.flags |= torrent_flags::auto_managed;
params.flags |= torrent_flags::paused;
ses.async_add_torrent(params);
}
},
[](lt::session& ses) {
// make sure only 3 got started
std::vector<lt::alert*> alerts;
ses.pop_alerts(&alerts);
lt::time_point start_time = alerts[0]->timestamp();
int num_started = 0;
int num_checking = 0;
int num_seeding = 0;
for (alert* a : alerts)
{
std::printf("%-3d %s\n", int(duration_cast<lt::seconds>(a->timestamp()
- start_time).count()), a->message().c_str());
if (alert_cast<torrent_resumed_alert>(a))
{
++num_started;
std::printf("started: %d checking: %d seeding: %d\n"
, num_started, num_checking, num_seeding);
}
else if (alert_cast<torrent_paused_alert>(a))
{
TEST_CHECK(num_started > 0);
--num_started;
std::printf("started: %d checking: %d seeding: %d\n"
, num_started, num_checking, num_seeding);
}
else if (state_changed_alert* sc = alert_cast<state_changed_alert>(a))
{
if (sc->prev_state == torrent_status::checking_files)
--num_checking;
else if (sc->prev_state == torrent_status::seeding)
--num_seeding;
if (sc->state == torrent_status::checking_files)
++num_checking;
else if (sc->state == torrent_status::seeding)
++num_seeding;
std::printf("started: %d checking: %d seeding: %d\n"
, num_started, num_checking, num_seeding);
// while at least one torrent is checking, there may be another
// started torrent (the checking one), other than that, only 3
// torrents are allowed to be started and seeding
TEST_CHECK(num_started <= 3 + 1);
TEST_CHECK(num_started <= 1 || num_seeding > 0);
}
}
TEST_EQUAL(num_started, 3);
num_started = 0;
for (torrent_handle const& h : ses.get_torrents())
{
TEST_CHECK(h.status().flags & torrent_flags::auto_managed);
TEST_CHECK(h.status().is_seeding);
num_started += !(h.status().flags & torrent_flags::paused);
}
TEST_EQUAL(num_started, 3);
});
}
TORRENT_TEST(download_limit)
{
run_test(
[](settings_pack& sett) {
// session settings
// set the seed limit to 3
sett.set_bool(settings_pack::dont_count_slow_torrents, false);
sett.set_int(settings_pack::active_checking, 1);
sett.set_int(settings_pack::active_downloads, 3);
},
[](lt::session& ses) {
// add torrents
// add 5 seeds
for (int i = 0; i < num_torrents; ++i)
{
lt::add_torrent_params params = ::create_torrent(i, false);
// torrents are paused and auto-managed
params.flags |= torrent_flags::auto_managed;
params.flags |= torrent_flags::paused;
ses.async_add_torrent(params);
}
},
[](lt::session& ses) {
// make sure only 3 got started
std::vector<lt::alert*> alerts;
ses.pop_alerts(&alerts);
lt::time_point start_time = alerts[0]->timestamp();
int num_started = 0;
int num_checking = 0;
int num_downloading = 0;
for (alert* a : alerts)
{
std::printf("%-3d %s\n", int(duration_cast<lt::seconds>(a->timestamp()
- start_time).count()), a->message().c_str());
if (alert_cast<torrent_resumed_alert>(a))
{
++num_started;
std::printf("started: %d checking: %d downloading: %d\n"
, num_started, num_checking, num_downloading);
}
else if (alert_cast<torrent_paused_alert>(a))
{
TEST_CHECK(num_started > 0);
--num_started;
std::printf("started: %d checking: %d downloading: %d\n"
, num_started, num_checking, num_downloading);
}
else if (state_changed_alert* sc = alert_cast<state_changed_alert>(a))
{
if (sc->prev_state == torrent_status::checking_files)
--num_checking;
else if (sc->prev_state == torrent_status::downloading)
--num_downloading;
if (sc->state == torrent_status::checking_files)
++num_checking;
else if (sc->state == torrent_status::downloading)
++num_downloading;
std::printf("started: %d checking: %d downloading: %d\n"
, num_started, num_checking, num_downloading);
// while at least one torrent is checking, there may be another
// started torrent (the checking one), other than that, only 3
// torrents are allowed to be started and seeding
TEST_CHECK(num_started <= 3 + 1);
TEST_CHECK(num_started <= 1 || num_downloading > 0);
}
}
TEST_EQUAL(num_started, 3);
num_started = 0;
for (torrent_handle const& h : ses.get_torrents())
{
TEST_CHECK(h.status().flags & torrent_flags::auto_managed);
TEST_CHECK(!h.status().is_finished);
num_started += !(h.status().flags & torrent_flags::paused);
}
TEST_EQUAL(num_started, 3);
});
}
// make sure torrents don't announce to the tracker when transitioning from
// checking to paused downloading
TORRENT_TEST(checking_announce)
{
run_test(
[](settings_pack& sett) {
// session settings
// set the seed limit to 3
sett.set_bool(settings_pack::dont_count_slow_torrents, false);
sett.set_int(settings_pack::active_checking, 1);
// just set the tracker retry intervals really long, to make sure we
// don't keep retrying the tracker (since there's nothing running
// there, it will fail)
sett.set_int(settings_pack::tracker_backoff, 100000);
// only the first torrent added should ever announce
sett.set_int(settings_pack::active_seeds, 1);
},
[](lt::session& ses) {
// add torrents
// add 5 seeds
for (int i = 0; i < num_torrents; ++i)
{
lt::add_torrent_params params = ::create_torrent(i, true);
// torrents are paused and auto-managed
params.flags |= torrent_flags::auto_managed;
params.flags |= torrent_flags::paused;
// we need this to get the tracker_announce_alert
params.trackers.push_back("http://10.10.0.2/announce");
ses.async_add_torrent(params);
}
},
[](lt::session& ses) {
// make sure only 3 got started
std::vector<lt::alert*> alerts;
ses.pop_alerts(&alerts);
lt::time_point start_time = alerts[0]->timestamp();
int num_announce = 0;
for (alert* a : alerts)
{
std::printf("%-3d %s\n", int(duration_cast<lt::seconds>(a->timestamp()
- start_time).count()), a->message().c_str());
if (alert_cast<tracker_announce_alert>(a))
++num_announce;
}
TEST_EQUAL(num_announce, 1);
int num_started = 0;
for (torrent_handle const& h : ses.get_torrents())
{
TEST_CHECK(h.status().flags & torrent_flags::auto_managed);
num_started += !(h.status().flags & torrent_flags::paused);
}
TEST_EQUAL(num_started, 1);
});
}
TORRENT_TEST(paused_checking)
{
run_test(
[](settings_pack& sett) {
// session settings
// set the seed limit to 3
sett.set_bool(settings_pack::dont_count_slow_torrents, true);
sett.set_int(settings_pack::active_checking, 1);
},
[](lt::session& ses) {
// add torrents
// add 5 seeds
for (int i = 0; i < num_torrents; ++i)
{
lt::add_torrent_params params = ::create_torrent(i, true);
// torrents are paused and auto-managed
params.flags &= ~torrent_flags::auto_managed;
params.flags |= torrent_flags::paused;
ses.async_add_torrent(params);
}
},
[](lt::session& ses) {
// make sure only 3 got started
std::vector<lt::alert*> alerts;
ses.pop_alerts(&alerts);
lt::time_point start_time = alerts[0]->timestamp();
for (alert* a : alerts)
{
std::printf("%-3d %s\n", int(duration_cast<lt::seconds>(a->timestamp()
- start_time).count()), a->message().c_str());
if (state_changed_alert* sc = alert_cast<state_changed_alert>(a))
{
TEST_CHECK(sc->state == torrent_status::checking_files
|| sc->state == torrent_status::checking_resume_data);
}
}
for (torrent_handle const& h : ses.get_torrents())
{
// even though all torrents are seeding, libtorrent shouldn't know
// that, because they should never have been checked (because they
// were force stopped)
TEST_CHECK(!h.status().is_seeding);
TEST_CHECK(!(h.status().flags & torrent_flags::auto_managed));
TEST_CHECK(h.status().flags & torrent_flags::paused);
}
});
}
// set the stop_when_ready flag and make sure we receive a paused alert *before*
// a state_changed_alert
TORRENT_TEST(stop_when_ready)
{
run_test(
[](settings_pack&) {},
[](lt::session& ses) {
// add torrents
lt::add_torrent_params params = ::create_torrent(0, true);
// torrents are started and auto-managed
params.flags |= torrent_flags::auto_managed;
params.flags |= torrent_flags::stop_when_ready;
// we need this to get the tracker_announce_alert
params.trackers.push_back("http://10.10.0.2/announce");
ses.async_add_torrent(params);
},
[](lt::session& ses) {
// verify result (none should have been started)
std::vector<lt::alert*> alerts;
ses.pop_alerts(&alerts);
lt::time_point start_time = alerts[0]->timestamp();
int num_paused = 0;
for (alert* a : alerts)
{
std::printf("%-3d %s\n", int(duration_cast<lt::seconds>(a->timestamp()
- start_time).count()), a->message().c_str());
if (alert_cast<torrent_paused_alert>(a))
{
++num_paused;
}
if (state_changed_alert* sc = alert_cast<state_changed_alert>(a))
{
if (sc->state == torrent_status::seeding)
{
// once we turn into beeing a seed. we should have been paused
// already.
TEST_EQUAL(num_paused, 1);
}
}
// there should not have been any announces. the torrent should have
// been stopped *before* announcing.
TEST_CHECK(alert_cast<tracker_announce_alert>(a) == nullptr);
}
for (torrent_handle const& h : ses.get_torrents())
{
// the torrent should have been force-stopped (after checking was
// donw, because we set the stop_when_ready flag). Force stopped
// means not auto-managed and paused.
torrent_status st = h.status();
TEST_CHECK(!(st.flags & torrent_flags::auto_managed));
TEST_CHECK(st.flags & torrent_flags::paused);
// it should be seeding. If it's not seeding it may not have had its
// files checked.
TEST_EQUAL(st.state, torrent_status::seeding);
}
});
}
// This test makes sure that the fastresume check will still run for stopped
// torrents. The actual checking of files won't start until the torrent is
// un-paused/resumed though
TORRENT_TEST(resume_reject_when_paused)
{
run_test(
[](settings_pack& sett) {
sett.set_int(settings_pack::alert_mask, alert::all_categories);
},
[](lt::session& ses) {
// add torrents
lt::add_torrent_params params = ::create_torrent(0, true);
// the torrent is not auto managed and paused. Once the resume data
// check completes, it will stay paused but the state_changed_alert
// will be posted, when it goes to check the files
params.flags &= ~torrent_flags::auto_managed;
params.flags |= torrent_flags::paused;
ses.async_add_torrent(params);
},
[](lt::session& ses) {
std::vector<lt::alert*> alerts;
ses.pop_alerts(&alerts);
lt::time_point start_time = alerts[0]->timestamp();
int num_piece_finished = 0;
int checking_files = 0;
int state_changed = 0;
for (alert* a : alerts)
{
std::printf("%-3d %-25s %s\n", int(duration_cast<lt::seconds>(a->timestamp()
- start_time).count())
, a->what()
, a->message().c_str());
if (alert_cast<piece_finished_alert>(a))
++num_piece_finished;
if (auto sc = alert_cast<state_changed_alert>(a))
{
if (sc->state == torrent_status::checking_files)
++checking_files;
++state_changed;
}
}
for (torrent_handle const& h : ses.get_torrents())
{
// the torrent should have been force-stopped. Force stopped means
// not auto-managed and paused.
torrent_status st = h.status();
TEST_CHECK(!(st.flags & torrent_flags::auto_managed));
TEST_CHECK(st.flags & torrent_flags::paused);
// it should be checking files, because the resume data should have
// failed validation.
TEST_EQUAL(st.state, torrent_status::checking_files);
}
TEST_EQUAL(num_piece_finished, 0);
// it should not actually check the files (since it's paused)
// if the files were checked, the state would change to downloading
// immediately, and state_changed would be 2. This asserts that's not
// the case.
TEST_EQUAL(state_changed, 1);
TEST_EQUAL(checking_files, 1);
});
}
// this test adds the torrent in paused state and no resume data. Expecting the
// resume check to complete and just transition into checking state, but without
// actually checking anything
TORRENT_TEST(no_resume_when_paused)
{
run_test(
[](settings_pack& sett) {
sett.set_int(settings_pack::alert_mask, alert::all_categories);
},
[](lt::session& ses) {
// add torrents
lt::add_torrent_params params = ::create_torrent(0, true);
// the torrent is not auto managed and paused.
params.flags &= ~torrent_flags::auto_managed;
params.flags |= torrent_flags::paused;
ses.async_add_torrent(params);
},
[](lt::session& ses) {
std::vector<lt::alert*> alerts;
ses.pop_alerts(&alerts);
lt::time_point start_time = alerts[0]->timestamp();
int num_piece_finished = 0;
int resume_rejected = 0;
int state_changed = 0;
for (alert* a : alerts)
{
std::printf("%-3d %-25s %s\n", int(duration_cast<lt::seconds>(a->timestamp()
- start_time).count())
, a->what()
, a->message().c_str());
if (alert_cast<piece_finished_alert>(a))
++num_piece_finished;
if (alert_cast<fastresume_rejected_alert>(a))
++resume_rejected;
if (auto sc = alert_cast<state_changed_alert>(a))
{
if (sc->state == torrent_status::checking_files)
++state_changed;
}
}
for (torrent_handle const& h : ses.get_torrents())
{
// the torrent should have been force-stopped. Force stopped means
// not auto-managed and paused.
torrent_status st = h.status();
TEST_CHECK(!(st.flags & torrent_flags::auto_managed));
TEST_CHECK(st.flags & torrent_flags::paused);
// it should be checking files, because the resume data should have
// failed validation.
TEST_EQUAL(st.state, torrent_status::checking_files);
}
TEST_EQUAL(num_piece_finished, 0);
TEST_EQUAL(resume_rejected, 0);
TEST_EQUAL(state_changed, 1);
});
}
// this is just asserting that when the files are checked we do in fact get
// piece_finished_alerts. The other tests rely on this assumption
TORRENT_TEST(no_resume_when_started)
{
run_test(
[](settings_pack& sett) {
sett.set_int(settings_pack::alert_mask, alert::all_categories);
},
[](lt::session& ses) {
// add torrents
lt::add_torrent_params params = ::create_torrent(0, true);
ses.async_add_torrent(params);
},
[](lt::session& ses) {
std::vector<lt::alert*> alerts;
ses.pop_alerts(&alerts);
lt::time_point start_time = alerts[0]->timestamp();
int num_piece_finished = 0;
int state_changed = 0;
for (alert* a : alerts)
{
std::printf("%-3d %-25s %s\n", int(duration_cast<lt::seconds>(a->timestamp()
- start_time).count())
, a->what()
, a->message().c_str());
if (alert_cast<piece_finished_alert>(a))
++num_piece_finished;
if (auto sc = alert_cast<state_changed_alert>(a))
{
if (sc->state == torrent_status::checking_files)
++state_changed;
}
}
TEST_EQUAL(num_piece_finished, 9);
TEST_EQUAL(state_changed, 1);
});
}
// when setting active_seeds to 0, any completed torrent should be paused
TORRENT_TEST(pause_completed_torrents)
{
run_test(
[](settings_pack& sett) {
// session settings
sett.set_bool(settings_pack::dont_count_slow_torrents, true);
sett.set_int(settings_pack::active_downloads, 1);
sett.set_int(settings_pack::active_seeds, 0);
},
[](lt::session& ses) {
// add torrent
lt::add_torrent_params params = ::create_torrent(0, true);
params.flags |= torrent_flags::auto_managed;
params.flags |= torrent_flags::paused;
ses.async_add_torrent(params);
},
[](lt::session& ses) {
// verify result
// the torrent should have been paused immediately as it completed,
// since we don't allow any seeding torrents
std::vector<lt::alert*> alerts;
ses.pop_alerts(&alerts);
lt::time_point start_time = alerts[0]->timestamp();
int num_started = 0;
int num_finished = 0;
int num_paused = 0;
lt::time_point finished;
lt::time_point paused;
for (alert* a : alerts)
{
std::printf("%-3d %s\n", int(duration_cast<lt::seconds>(a->timestamp()
- start_time).count()), a->message().c_str());
if (alert_cast<torrent_resumed_alert>(a))
++num_started;
if (alert_cast<torrent_finished_alert>(a))
{
++num_finished;
finished = a->timestamp();
}
if (alert_cast<torrent_paused_alert>(a))
{
++num_paused;
paused = a->timestamp();
}
}
TEST_EQUAL(num_started, 1);
TEST_EQUAL(num_finished, 1);
TEST_EQUAL(num_paused, 1);
if (num_finished > 0 && num_paused > 0)
{
TEST_CHECK(paused >= finished);
TEST_CHECK(paused - finished < chrono::milliseconds(1));
}
num_paused = 0;
for (torrent_handle const& h : ses.get_torrents())
{
TEST_CHECK(h.status().flags & torrent_flags::auto_managed);
num_paused += bool(h.status().flags & torrent_flags::paused);
}
TEST_EQUAL(num_paused, 1);
});
}
// TODO: assert that the torrent_paused_alert is posted when pausing
// downloading, seeding, checking torrents as well as the graceful pause
// TODO: test limits of tracker, DHT and LSD announces
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