/* -*- mode: c++ -*- * Copyright (C) 2020 Keyboard.io, Inc. * * This program is free software: you can redistribute it and/or modify it under * the terms of the GNU General Public License as published by the Free Software * Foundation, version 3. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License along with * this program. If not, see <http://www.gnu.org/licenses/>. */ #include "testing/setup-googletest.h" SETUP_GOOGLETEST(); namespace kaleidoscope { namespace testing { namespace { constexpr uint32_t t_0{0}; constexpr uint32_t t_1{1}; constexpr uint32_t t_100{100}; constexpr uint32_t t_500{500}; constexpr uint32_t t_100_000{100000}; using ::testing::IsEmpty; class SimulatorTiming : public VirtualDeviceTest { public: void assertTimeElapses(uint32_t interval) { // Record time at start uint32_t start = Kaleidoscope.millisAtCycleStart(); // Run cycles until the given amount of time has elapsed sim_.RunForMillis(interval); // Record time at end uint32_t end = Kaleidoscope.millisAtCycleStart(); ASSERT_EQ((end - start), interval); } }; TEST_F(SimulatorTiming, SimulatorStart) { // Time doesn't advance in the simulator until after the first cycle runs ASSERT_EQ(Kaleidoscope.millisAtCycleStart(), t_0) << "Clock is at 0 ms before we do anything"; RunCycle(); ASSERT_EQ(Kaleidoscope.millisAtCycleStart(), t_1) << "Clock is at 1 ms after the first cycle"; } TEST_F(SimulatorTiming, TimeElapses) { assertTimeElapses(t_1); assertTimeElapses(t_100); assertTimeElapses(t_500); } TEST_F(SimulatorTiming, ZeroTimeElapses) { assertTimeElapses(t_0); } TEST_F(SimulatorTiming, LongTimeElapses) { // Bigger number than uint16_t can hold assertTimeElapses(t_100_000); } TEST_F(SimulatorTiming, 3msPerCycleTestRunCycles) { sim_.SetCycleTime(3); // Record time at start uint32_t start = Kaleidoscope.millisAtCycleStart(); // Run cycles until the given amount of time has elapsed sim_.RunCycles(1); // Record time at end uint32_t end = Kaleidoscope.millisAtCycleStart(); ASSERT_EQ((end - start), 3) << "Start was " << start << " and end was " << end; // Record time at start start = Kaleidoscope.millisAtCycleStart(); // Run cycles until the given amount of time has elapsed sim_.RunCycles(10); // Record time at end end = Kaleidoscope.millisAtCycleStart(); ASSERT_EQ((end - start), 30) << "Start was " << start << " and end was " << end; } TEST_F(SimulatorTiming, 4msPerCycleTestRunForMillis) { sim_.SetCycleTime(4); // Record time at start uint32_t start = Kaleidoscope.millisAtCycleStart(); // Run cycles until the given amount of time has elapsed sim_.RunForMillis(40); // Record time at end uint32_t end = Kaleidoscope.millisAtCycleStart(); ASSERT_EQ((end - start), 40); } } // namespace } // namespace testing } // namespace kaleidoscope