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