139 lines
3.6 KiB
C++
139 lines
3.6 KiB
C++
/*
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* Copyright (C) 2016 Edward d'Auvergne
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*
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* This file is part of the program FlightGear.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "test_event.hxx"
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#include <algorithm>
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using namespace std;
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namespace {
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SGEventMgr* global_eventManager = nullptr;
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double global_realTime = 0.0;
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// class which behaves similarly to TimerObj in NasalSys
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class FakeNasalTimer
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{
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public:
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FakeNasalTimer(string n) : _name(n)
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{
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}
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void invoke()
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{
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++_invokeCount;
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if (_expectedTime > 0.0) {
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CPPUNIT_ASSERT_DOUBLES_EQUAL(_expectedTime, global_realTime, 0.1);
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}
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// rescheudle base don the next time
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if (!_rescheduleTimes.empty()) {
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const auto t = _rescheduleTimes.front();
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_rescheduleTimes.pop_front();
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// TimerObj does this, eugh
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global_eventManager->removeTask(_name);
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start(t);
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}
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}
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void start(double interval)
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{
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global_eventManager->addTask(_name, this, &FakeNasalTimer::invoke,
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interval, interval /* delay */, false);
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_expectedTime = global_realTime + interval;
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}
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string _name;
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deque<double> _rescheduleTimes;
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int _invokeCount = 0;
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double _expectedTime = 0.0;
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};
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} // namespace
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// Set up function for each test.
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void SimgearEventTests::setUp()
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{
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_eventManager = new SGEventMgr;
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global_eventManager = _eventManager;
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_eventManager->init();
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_realTimeProp = new SGPropertyNode{};
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_eventManager->setRealtimeProperty(_realTimeProp);
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}
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// Clean up after each test.
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void SimgearEventTests::tearDown()
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{
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global_eventManager = nullptr;
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}
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void SimgearEventTests::runForTestTime(double totalTime, double updateHz, double simTimeScaling)
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{
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const double dt = 1.0 / updateHz;
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const int updateCount = static_cast<int>(totalTime * updateHz);
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const double simDt = dt * simTimeScaling;
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_realTimeProp->setDoubleValue(dt);
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global_realTime = 0.0;
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for (int c = 0; c < updateCount; ++c) {
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const double newRealTime = global_realTime + dt;
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global_realTime = newRealTime;
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_eventManager->update(simDt);
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}
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}
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void SimgearEventTests::testTaskRescheduleDuringRun()
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{
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auto t1 = new FakeNasalTimer("timer_aaa");
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t1->_rescheduleTimes.resize(10);
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fill(t1->_rescheduleTimes.begin(), t1->_rescheduleTimes.end(), 0.5);
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t1->_rescheduleTimes.push_back(30.0); // large final value
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global_realTime = 0.0;
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t1->start(1.0);
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runForTestTime(8.0, 20);
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CPPUNIT_ASSERT_EQUAL(11, t1->_invokeCount);
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}
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void SimgearEventTests::testTaskRescheduleDuringRun2()
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{
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auto t1 = new FakeNasalTimer("timer_bbb");
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const std::initializer_list<double> times = {
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0.02, 0.05, 0.02, 0.1, 0.02, 0.125, 0.05, 0.02
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};
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t1->_rescheduleTimes = times;
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t1->_rescheduleTimes.push_back(30.0); // large final value
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global_realTime = 0.0;
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t1->start(1.0);
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// running at 60Hz, check we don't miss any
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runForTestTime(8.0, 60);
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CPPUNIT_ASSERT_EQUAL(9, t1->_invokeCount);
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}
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