transmission/tests/libtransmission/session-alt-speeds-test.cc

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// This file Copyright (C) 2022 Mnemosyne LLC.
// 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.
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#include <chrono>
#include <ctime>
#include <vector>
#include <libtransmission/transmission.h>
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#include <libtransmission/session-alt-speeds.h>
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#include "gtest/gtest.h"
using namespace std::literals;
class SessionAltSpeedsTest : public ::testing::Test
{
protected:
using ChangeReason = tr_session_alt_speeds::ChangeReason;
class MockMediator final : public tr_session_alt_speeds::Mediator
{
public:
void is_active_changed(bool is_active, ChangeReason reason) override
{
changelog_.emplace_back(is_active, reason, time());
}
[[nodiscard]] time_t time() override
{
return current_time_;
}
time_t current_time_ = 0;
struct Change
{
Change() = default;
Change(bool is_active_in, ChangeReason reason_in, time_t timestamp_in)
: is_active{ is_active_in }
, reason{ reason_in }
, timestamp{ timestamp_in }
{
}
bool is_active = false;
ChangeReason reason = ChangeReason::User;
time_t timestamp = 0;
};
std::vector<Change> changelog_;
};
static auto constexpr ArbitraryTimestamp1 = time_t{ 666 };
static auto midnightSundayMorning()
{
// new year's, Sun Jan 1 2023
auto tmdate = tm{};
tmdate.tm_sec = 0;
tmdate.tm_min = 0;
tmdate.tm_hour = 0;
tmdate.tm_mday = 1;
tmdate.tm_mon = 0;
tmdate.tm_year = 2023 - 1900;
tmdate.tm_wday = 0; // Sunday
tmdate.tm_yday = 0;
tmdate.tm_isdst = 0;
return mktime(&tmdate);
}
};
namespace libtransmission::test
{
TEST_F(SessionAltSpeedsTest, canInstantiate)
{
auto mediator = MockMediator{};
auto alt_speeds = tr_session_alt_speeds{ mediator };
EXPECT_FALSE(alt_speeds.is_active());
}
TEST_F(SessionAltSpeedsTest, canActivate)
{
static auto constexpr Now = ArbitraryTimestamp1;
auto mediator = MockMediator{};
mediator.current_time_ = Now;
auto alt_speeds = tr_session_alt_speeds{ mediator };
auto const changed_value = !alt_speeds.is_active();
EXPECT_EQ(0U, std::size(mediator.changelog_));
static auto constexpr Reason = ChangeReason::User;
alt_speeds.set_active(changed_value, Reason);
EXPECT_EQ(changed_value, alt_speeds.is_active());
ASSERT_EQ(1U, std::size(mediator.changelog_));
EXPECT_EQ(changed_value, mediator.changelog_[0].is_active);
EXPECT_EQ(Reason, mediator.changelog_[0].reason);
EXPECT_EQ(Now, mediator.changelog_[0].timestamp);
}
TEST_F(SessionAltSpeedsTest, canSchedule)
{
auto mediator = MockMediator{};
auto now = midnightSundayMorning(); // midnight
mediator.current_time_ = now;
auto alt_speeds = tr_session_alt_speeds{ mediator };
alt_speeds.set_start_minute(60); // start at 1AM
alt_speeds.set_end_minute(120); // end at 2AM
alt_speeds.set_weekdays(TR_SCHED_ALL); // every day
alt_speeds.set_scheduler_enabled(true);
auto n_changes = std::size(mediator.changelog_);
EXPECT_EQ(0U, n_changes);
// Confirm that walking up to the threshold, but not crossing it, does not enable
now += std::chrono::duration_cast<std::chrono::seconds>(59min).count();
mediator.current_time_ = now;
alt_speeds.check_scheduler();
EXPECT_EQ(n_changes, std::size(mediator.changelog_));
// Confirm that crossing the threshold does enable
now += std::chrono::duration_cast<std::chrono::seconds>(1min).count();
mediator.current_time_ = now;
alt_speeds.check_scheduler();
ASSERT_EQ(n_changes + 1, std::size(mediator.changelog_));
EXPECT_EQ(true, mediator.changelog_[n_changes].is_active);
EXPECT_EQ(ChangeReason::Scheduler, mediator.changelog_[n_changes].reason);
EXPECT_EQ(now, mediator.changelog_[n_changes].timestamp);
++n_changes;
// Confirm that walking up to the threshold, but not crossing it, does not disable
now += std::chrono::duration_cast<std::chrono::seconds>(59min).count();
mediator.current_time_ = now;
alt_speeds.check_scheduler();
EXPECT_EQ(n_changes, std::size(mediator.changelog_));
// Confirm that crossing the threshold does disable
now += std::chrono::duration_cast<std::chrono::seconds>(1min).count();
mediator.current_time_ = now;
alt_speeds.check_scheduler();
ASSERT_EQ(n_changes + 1, std::size(mediator.changelog_));
EXPECT_EQ(false, mediator.changelog_[n_changes].is_active);
EXPECT_EQ(ChangeReason::Scheduler, mediator.changelog_[n_changes].reason);
EXPECT_EQ(now, mediator.changelog_[n_changes].timestamp);
}
} // namespace libtransmission::test