blob: a3292870dfa092060b0ad455164298549bbb73d4 [file] [log] [blame]
#include <chrono>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <memory>
#include <optional>
#include <sdeventplus/clock.hpp>
#include <sdeventplus/event.hpp>
#include <sdeventplus/test/sdevent.hpp>
#include <sdeventplus/utility/timer.hpp>
#include <stdexcept>
#include <systemd/sd-event.h>
namespace sdeventplus
{
namespace utility
{
namespace
{
constexpr ClockId testClock = ClockId::Monotonic;
using std::chrono::microseconds;
using std::chrono::milliseconds;
using testing::DoAll;
using testing::Return;
using testing::SaveArg;
using testing::SetArgPointee;
using TestTimer = Timer<testClock>;
ssize_t event_ref_times = 0;
ACTION(EventRef)
{
event_ref_times++;
}
ACTION(EventUnref)
{
ASSERT_LT(0, event_ref_times);
event_ref_times--;
}
class TimerTest : public testing::Test
{
protected:
testing::StrictMock<test::SdEventMock> mock;
sd_event* const expected_event = reinterpret_cast<sd_event*>(1234);
sd_event_source* const expected_source =
reinterpret_cast<sd_event_source*>(2345);
const milliseconds interval{134};
const milliseconds starting_time{10};
sd_event_time_handler_t handler = nullptr;
void* handler_userdata;
std::unique_ptr<Event> event;
std::unique_ptr<TestTimer> timer;
std::function<void()> callback;
void expectNow(microseconds ret)
{
EXPECT_CALL(mock,
sd_event_now(expected_event,
static_cast<clockid_t>(testClock), testing::_))
.WillOnce(DoAll(SetArgPointee<2>(ret.count()), Return(0)));
}
void expectSetTime(microseconds time)
{
EXPECT_CALL(mock,
sd_event_source_set_time(expected_source, time.count()))
.WillOnce(Return(0));
}
void expectSetEnabled(source::Enabled enabled)
{
EXPECT_CALL(mock, sd_event_source_set_enabled(
expected_source, static_cast<int>(enabled)))
.WillOnce(Return(0));
}
void expectGetEnabled(source::Enabled enabled)
{
EXPECT_CALL(mock,
sd_event_source_get_enabled(expected_source, testing::_))
.WillOnce(
DoAll(SetArgPointee<1>(static_cast<int>(enabled)), Return(0)));
}
void resetTimer()
{
if (timer)
{
expectSetEnabled(source::Enabled::Off);
timer.reset();
}
}
void expireTimer()
{
const milliseconds new_time(90);
expectNow(new_time);
expectSetTime(new_time + interval);
EXPECT_EQ(0, handler(nullptr, 0, handler_userdata));
EXPECT_TRUE(timer->hasExpired());
EXPECT_EQ(interval, timer->getInterval());
}
void SetUp()
{
EXPECT_CALL(mock, sd_event_ref(expected_event))
.WillRepeatedly(DoAll(EventRef(), Return(expected_event)));
EXPECT_CALL(mock, sd_event_unref(expected_event))
.WillRepeatedly(DoAll(EventUnref(), Return(nullptr)));
event = std::make_unique<Event>(expected_event, &mock);
EXPECT_CALL(mock, sd_event_source_unref(expected_source))
.WillRepeatedly(Return(nullptr));
EXPECT_CALL(mock,
sd_event_source_set_userdata(expected_source, testing::_))
.WillRepeatedly(
DoAll(SaveArg<1>(&handler_userdata), Return(nullptr)));
// Having a callback proxy allows us to update the test callback
// dynamically, without changing it inside the timer
auto runCallback = [&](TestTimer&) {
if (callback)
{
callback();
}
};
expectNow(starting_time);
EXPECT_CALL(mock, sd_event_add_time(
expected_event, testing::_,
static_cast<clockid_t>(testClock),
microseconds(starting_time + interval).count(),
1000, testing::_, nullptr))
.WillOnce(DoAll(SetArgPointee<1>(expected_source),
SaveArg<5>(&handler), Return(0)));
expectSetEnabled(source::Enabled::On);
timer = std::make_unique<TestTimer>(*event, runCallback, interval);
}
void TearDown()
{
resetTimer();
event.reset();
EXPECT_EQ(0, event_ref_times);
}
};
TEST_F(TimerTest, NoCallback)
{
resetTimer();
expectNow(starting_time);
EXPECT_CALL(
mock, sd_event_add_time(expected_event, testing::_,
static_cast<clockid_t>(testClock),
microseconds(starting_time + interval).count(),
1000, testing::_, nullptr))
.WillOnce(DoAll(SetArgPointee<1>(expected_source), SaveArg<5>(&handler),
Return(0)));
expectSetEnabled(source::Enabled::On);
timer = std::make_unique<TestTimer>(*event, nullptr, interval);
expectNow(starting_time);
expectSetTime(starting_time + interval);
EXPECT_EQ(0, handler(nullptr, 0, handler_userdata));
}
TEST_F(TimerTest, NoInterval)
{
resetTimer();
expectNow(starting_time);
EXPECT_CALL(mock, sd_event_add_time(expected_event, testing::_,
static_cast<clockid_t>(testClock),
microseconds(starting_time).count(),
1000, testing::_, nullptr))
.WillOnce(DoAll(SetArgPointee<1>(expected_source), SaveArg<5>(&handler),
Return(0)));
expectSetEnabled(source::Enabled::Off);
timer = std::make_unique<TestTimer>(*event, nullptr);
EXPECT_EQ(std::nullopt, timer->getInterval());
EXPECT_THROW(timer->setEnabled(true), std::runtime_error);
}
TEST_F(TimerTest, NewTimer)
{
EXPECT_FALSE(timer->hasExpired());
EXPECT_EQ(interval, timer->getInterval());
}
TEST_F(TimerTest, IsEnabled)
{
expectGetEnabled(source::Enabled::On);
EXPECT_TRUE(timer->isEnabled());
expectGetEnabled(source::Enabled::Off);
EXPECT_FALSE(timer->isEnabled());
}
TEST_F(TimerTest, GetRemainingDisabled)
{
expectGetEnabled(source::Enabled::Off);
EXPECT_THROW(timer->getRemaining(), std::runtime_error);
}
TEST_F(TimerTest, GetRemainingNegative)
{
milliseconds now(675), end(453);
expectGetEnabled(source::Enabled::On);
EXPECT_CALL(mock, sd_event_source_get_time(expected_source, testing::_))
.WillOnce(
DoAll(SetArgPointee<1>(microseconds(end).count()), Return(0)));
expectNow(now);
EXPECT_EQ(milliseconds(0), timer->getRemaining());
}
TEST_F(TimerTest, GetRemainingPositive)
{
milliseconds now(453), end(675);
expectGetEnabled(source::Enabled::On);
EXPECT_CALL(mock, sd_event_source_get_time(expected_source, testing::_))
.WillOnce(
DoAll(SetArgPointee<1>(microseconds(end).count()), Return(0)));
expectNow(now);
EXPECT_EQ(end - now, timer->getRemaining());
}
TEST_F(TimerTest, SetEnabled)
{
expectSetEnabled(source::Enabled::On);
timer->setEnabled(true);
EXPECT_FALSE(timer->hasExpired());
// Value should always be passed through regardless of current state
expectSetEnabled(source::Enabled::On);
timer->setEnabled(true);
EXPECT_FALSE(timer->hasExpired());
expectSetEnabled(source::Enabled::Off);
timer->setEnabled(false);
EXPECT_FALSE(timer->hasExpired());
// Value should always be passed through regardless of current state
expectSetEnabled(source::Enabled::Off);
timer->setEnabled(false);
EXPECT_FALSE(timer->hasExpired());
}
TEST_F(TimerTest, SetEnabledUnsetTimer)
{
// Force the timer to become unset
expectSetEnabled(source::Enabled::Off);
timer->restart(std::nullopt);
// Setting an interval should not update the timer directly
timer->setInterval(milliseconds(90));
expectSetEnabled(source::Enabled::Off);
timer->setEnabled(false);
EXPECT_THROW(timer->setEnabled(true), std::runtime_error);
}
TEST_F(TimerTest, SetEnabledOneshot)
{
// Timer effectively becomes oneshot if it gets initialized but has
// the interval removed
timer->setInterval(std::nullopt);
expectSetEnabled(source::Enabled::Off);
timer->setEnabled(false);
expectSetEnabled(source::Enabled::On);
timer->setEnabled(true);
}
TEST_F(TimerTest, SetRemaining)
{
const milliseconds now(90), remaining(30);
expectNow(now);
expectSetTime(now + remaining);
timer->setRemaining(remaining);
EXPECT_EQ(interval, timer->getInterval());
EXPECT_FALSE(timer->hasExpired());
}
TEST_F(TimerTest, ResetRemaining)
{
const milliseconds now(90);
expectNow(now);
expectSetTime(now + interval);
timer->resetRemaining();
EXPECT_EQ(interval, timer->getInterval());
EXPECT_FALSE(timer->hasExpired());
}
TEST_F(TimerTest, SetInterval)
{
const milliseconds new_interval(40);
timer->setInterval(new_interval);
EXPECT_EQ(new_interval, timer->getInterval());
EXPECT_FALSE(timer->hasExpired());
}
TEST_F(TimerTest, SetIntervalEmpty)
{
timer->setInterval(std::nullopt);
EXPECT_EQ(std::nullopt, timer->getInterval());
EXPECT_FALSE(timer->hasExpired());
}
TEST_F(TimerTest, CallbackHappensLast)
{
const milliseconds new_time(90);
expectNow(new_time);
expectSetTime(new_time + interval);
callback = [&]() {
EXPECT_TRUE(timer->hasExpired());
expectSetEnabled(source::Enabled::On);
timer->setEnabled(true);
timer->clearExpired();
timer->setInterval(std::nullopt);
};
EXPECT_EQ(0, handler(nullptr, 0, handler_userdata));
EXPECT_FALSE(timer->hasExpired());
EXPECT_EQ(std::nullopt, timer->getInterval());
expectSetEnabled(source::Enabled::On);
timer->setEnabled(true);
}
TEST_F(TimerTest, CallbackOneshot)
{
// Make sure we try a one shot so we can test the callback
// correctly
timer->setInterval(std::nullopt);
expectSetEnabled(source::Enabled::Off);
callback = [&]() {
EXPECT_TRUE(timer->hasExpired());
EXPECT_THROW(timer->setEnabled(true), std::runtime_error);
timer->setInterval(interval);
};
EXPECT_EQ(0, handler(nullptr, 0, handler_userdata));
EXPECT_THROW(timer->setEnabled(true), std::runtime_error);
}
TEST_F(TimerTest, SetValuesExpiredTimer)
{
const milliseconds new_time(90);
expectNow(new_time);
expectSetTime(new_time + interval);
EXPECT_EQ(0, handler(nullptr, 0, handler_userdata));
EXPECT_TRUE(timer->hasExpired());
EXPECT_EQ(interval, timer->getInterval());
// Timer should remain expired unless clearExpired() or reset()
expectSetEnabled(source::Enabled::On);
timer->setEnabled(true);
EXPECT_TRUE(timer->hasExpired());
expectNow(milliseconds(20));
expectSetTime(milliseconds(50));
timer->setRemaining(milliseconds(30));
EXPECT_TRUE(timer->hasExpired());
timer->setInterval(milliseconds(10));
EXPECT_TRUE(timer->hasExpired());
expectNow(milliseconds(20));
expectSetTime(milliseconds(30));
timer->resetRemaining();
EXPECT_TRUE(timer->hasExpired());
timer->clearExpired();
EXPECT_FALSE(timer->hasExpired());
}
TEST_F(TimerTest, Restart)
{
expireTimer();
const milliseconds new_interval(471);
expectNow(starting_time);
expectSetTime(starting_time + new_interval);
expectSetEnabled(source::Enabled::On);
timer->restart(new_interval);
EXPECT_FALSE(timer->hasExpired());
EXPECT_EQ(new_interval, timer->getInterval());
expectSetEnabled(source::Enabled::On);
timer->setEnabled(true);
}
TEST_F(TimerTest, RestartEmpty)
{
expireTimer();
expectSetEnabled(source::Enabled::Off);
timer->restart(std::nullopt);
EXPECT_FALSE(timer->hasExpired());
EXPECT_EQ(std::nullopt, timer->getInterval());
EXPECT_THROW(timer->setEnabled(true), std::runtime_error);
}
TEST_F(TimerTest, RestartOnce)
{
expireTimer();
const milliseconds remaining(471);
expectNow(starting_time);
expectSetTime(starting_time + remaining);
expectSetEnabled(source::Enabled::On);
timer->restartOnce(remaining);
EXPECT_FALSE(timer->hasExpired());
EXPECT_EQ(std::nullopt, timer->getInterval());
expectSetEnabled(source::Enabled::On);
timer->setEnabled(true);
}
} // namespace
} // namespace utility
} // namespace sdeventplus