public async Task TestTimer1sInterval()
{
const int interval = 1;
var sut = new FixedStepTimer(TimeSpan.FromSeconds(interval));
var tickResults = new List <DateTime>();
var firstSignalTime = DateTime.MinValue;
sut.Tick += (s, e) =>
{
var signalTime = new DateTime(
1, 1, 1,
e.SignalTime.Hour,
e.SignalTime.Minute,
e.SignalTime.Second
);
if (e.TickCount == 1)
{
firstSignalTime = signalTime;
}
tickResults.Add(signalTime);
};
try
{
sut.Start(true);
await Task.Delay(TimeSpan.FromSeconds(10));
sut.Stop();
}
finally
{
sut.Close();
}
for (var i = 0; i < tickResults.Count; i++)
{
var want = firstSignalTime.AddSeconds(interval * i);
var got = tickResults[i];
var w = want.ToString("HH:mm:ss.fff");
var g = got.ToString("HH:mm:ss.fff");
Trace.WriteLine($"want:[{w}]\tgot:[{g}]");
Assert.AreEqual(want, got);
}
Assert.AreEqual(11, sut.TickCount);
}
public void TimerReset()
{
ManualClock clock = new ManualClock();
clock.Start();
FixedStepTimer timer = new FixedStepTimer(clock)
{
StepSize = TimeSpan.FromMilliseconds(10),
MaxNumberOfSteps = 5,
};
timer.Idle += timer_Idle;
timer.TimeChanged += timer_TimeChanged;
timer.Reset();
timer.Start();
clock.Update(TimeSpan.FromMilliseconds(10));
CheckTimeChangedEvent(TimeSpan.FromMilliseconds(10), TimeSpan.FromMilliseconds(10));
timer.Reset();
Assert.IsFalse(timer.IsRunning);
Assert.AreEqual(TimeSpan.Zero, timer.Time);
Assert.AreEqual(TimeSpan.Zero, timer.DeltaTime);
timer.Start();
clock.Update(TimeSpan.FromMilliseconds(10));
clock.Update(TimeSpan.FromMilliseconds(10));
CheckTimeChangedEvent(TimeSpan.FromMilliseconds(20), TimeSpan.FromMilliseconds(10));
timer.Stop();
Assert.AreEqual(TimeSpan.FromMilliseconds(20), timer.Time);
Assert.AreEqual(TimeSpan.Zero, timer.DeltaTime);
timer.Reset();
Assert.AreEqual(TimeSpan.Zero, timer.Time);
Assert.AreEqual(TimeSpan.Zero, timer.DeltaTime);
}
public async Task TestTimer100msInterval()
{
const int interval = 100;
var sut = new FixedStepTimer(TimeSpan.FromMilliseconds(interval));
var tickResults = new List <DateTime>();
var firstSignalTime = DateTime.MinValue;
sut.Tick += (s, e) =>
{
var signalTime = new DateTime(
1, 1, 1,
e.SignalTime.Hour,
e.SignalTime.Minute,
e.SignalTime.Second,
e.SignalTime.Millisecond
);
if (e.TickCount == 1)
{
firstSignalTime = signalTime;
}
tickResults.Add(signalTime);
};
try
{
sut.Start(true);
await Task.Delay(TimeSpan.FromSeconds(1));
sut.Stop();
}
finally
{
sut.Close();
}
const int tolerance = 10;
for (var i = 0; i < tickResults.Count; i++)
{
var want = firstSignalTime.AddMilliseconds(interval * i);
var got = tickResults[i];
var w = want.ToString("HH:mm:ss.fff");
var g = got.ToString("HH:mm:ss.fff");
var diff = got - want;
Trace.WriteLine($"want:[{w}]\tgot:[{g}] {diff.Milliseconds}ms");
var wantMillisecond = want.Millisecond;
var gotMillisecond = got.Millisecond;
var lowerLimit = wantMillisecond;
var upperLimit = wantMillisecond + tolerance;
bool ok = lowerLimit <= gotMillisecond && gotMillisecond <= upperLimit;
if (!ok)
{
Assert.Fail($"want:[{w}]\tgot:[{g}]");
}
}
Assert.AreEqual(11, sut.TickCount);
}
public void TimerReset()
{
ManualClock clock = new ManualClock();
clock.Start();
FixedStepTimer timer = new FixedStepTimer(clock)
{
StepSize = TimeSpan.FromMilliseconds(10),
MaxNumberOfSteps = 5,
};
timer.Idle += timer_Idle;
timer.TimeChanged += timer_TimeChanged;
timer.Reset();
timer.Start();
clock.Update(TimeSpan.FromMilliseconds(10));
CheckTimeChangedEvent(TimeSpan.FromMilliseconds(10), TimeSpan.FromMilliseconds(10));
timer.Reset();
Assert.IsFalse(timer.IsRunning);
Assert.AreEqual(TimeSpan.Zero, timer.Time);
Assert.AreEqual(TimeSpan.Zero, timer.DeltaTime);
timer.Start();
clock.Update(TimeSpan.FromMilliseconds(10));
clock.Update(TimeSpan.FromMilliseconds(10));
CheckTimeChangedEvent(TimeSpan.FromMilliseconds(20), TimeSpan.FromMilliseconds(10));
timer.Stop();
Assert.AreEqual(TimeSpan.FromMilliseconds(20), timer.Time);
Assert.AreEqual(TimeSpan.Zero, timer.DeltaTime);
timer.Reset();
Assert.AreEqual(TimeSpan.Zero, timer.Time);
Assert.AreEqual(TimeSpan.Zero, timer.DeltaTime);
}
public void NormalRun()
{
ManualClock clock = new ManualClock();
clock.Start();
FixedStepTimer timer = new FixedStepTimer(clock)
{
StepSize = TimeSpan.FromMilliseconds(10),
MaxNumberOfSteps = 5,
};
timer.Idle += timer_Idle;
timer.TimeChanged += timer_TimeChanged;
// Clock is running. Timer is stopped.
clock.Update(TimeSpan.FromMilliseconds(10));
CheckNoIdleEvent();
CheckNoTimeChangedEvent();
// Start
timer.Start();
clock.Update(TimeSpan.FromMilliseconds(10));
CheckNoIdleEvent();
CheckTimeChangedEvent(TimeSpan.FromMilliseconds(10), TimeSpan.FromMilliseconds(10));
clock.Update(TimeSpan.FromMilliseconds(10));
CheckNoIdleEvent();
CheckTimeChangedEvent(TimeSpan.FromMilliseconds(20), TimeSpan.FromMilliseconds(10));
Assert.AreEqual(TimeSpan.FromMilliseconds(20), timer.Time);
Assert.AreEqual(TimeSpan.FromMilliseconds(10), timer.DeltaTime);
// Pause
timer.Stop();
clock.Update(TimeSpan.FromMilliseconds(10));
CheckNoIdleEvent();
CheckNoTimeChangedEvent();
Assert.AreEqual(TimeSpan.FromMilliseconds(20), timer.Time);
// Resume
timer.Start();
clock.Update(TimeSpan.FromMilliseconds(10));
CheckNoIdleEvent();
CheckTimeChangedEvent(TimeSpan.FromMilliseconds(30), TimeSpan.FromMilliseconds(10));
Assert.AreEqual(TimeSpan.FromMilliseconds(30), timer.Time);
Assert.AreEqual(TimeSpan.FromMilliseconds(10), timer.DeltaTime);
Assert.AreEqual(0, timer.AccumulatedSteps);
Assert.AreEqual(0, timer.PendingSteps);
// Time step = 3 ∙ step size
clock.Update(TimeSpan.FromMilliseconds(34));
CheckNoIdleEvent();
CheckTimeChangedEvent(TimeSpan.FromMilliseconds(60), TimeSpan.FromMilliseconds(30));
Assert.AreEqual(TimeSpan.FromMilliseconds(60), timer.Time);
Assert.AreEqual(TimeSpan.FromMilliseconds(30), timer.DeltaTime);
Assert.AreEqual(0, timer.AccumulatedSteps);
Assert.AreEqual(0, timer.PendingSteps);
// Time step = 3 ∙ step size
// (27 ms + 4 ms from previous step = 31 ms)
clock.Update(TimeSpan.FromMilliseconds(27));
CheckNoIdleEvent();
CheckTimeChangedEvent(TimeSpan.FromMilliseconds(90), TimeSpan.FromMilliseconds(30));
Assert.AreEqual(TimeSpan.FromMilliseconds(90), timer.Time);
Assert.AreEqual(TimeSpan.FromMilliseconds(30), timer.DeltaTime);
Assert.AreEqual(0, timer.AccumulatedSteps);
Assert.AreEqual(0, timer.PendingSteps);
// Time step = step size
// (9 ms + 1 ms from previous step = 10 ms)
clock.Update(TimeSpan.FromMilliseconds(9));
CheckNoIdleEvent();
CheckTimeChangedEvent(TimeSpan.FromMilliseconds(100), TimeSpan.FromMilliseconds(10));
Assert.AreEqual(TimeSpan.FromMilliseconds(100), timer.Time);
Assert.AreEqual(TimeSpan.FromMilliseconds(10), timer.DeltaTime);
Assert.AreEqual(0, timer.AccumulatedSteps);
Assert.AreEqual(0, timer.PendingSteps);
}
public void NormalRun()
{
ManualClock clock = new ManualClock();
clock.Start();
FixedStepTimer timer = new FixedStepTimer(clock)
{
StepSize = TimeSpan.FromMilliseconds(10),
MaxNumberOfSteps = 5,
};
timer.Idle += timer_Idle;
timer.TimeChanged += timer_TimeChanged;
// Clock is running. Timer is stopped.
clock.Update(TimeSpan.FromMilliseconds(10));
CheckNoIdleEvent();
CheckNoTimeChangedEvent();
// Start
timer.Start();
clock.Update(TimeSpan.FromMilliseconds(10));
CheckNoIdleEvent();
CheckTimeChangedEvent(TimeSpan.FromMilliseconds(10), TimeSpan.FromMilliseconds(10));
clock.Update(TimeSpan.FromMilliseconds(10));
CheckNoIdleEvent();
CheckTimeChangedEvent(TimeSpan.FromMilliseconds(20), TimeSpan.FromMilliseconds(10));
Assert.AreEqual(TimeSpan.FromMilliseconds(20), timer.Time);
Assert.AreEqual(TimeSpan.FromMilliseconds(10), timer.DeltaTime);
// Pause
timer.Stop();
clock.Update(TimeSpan.FromMilliseconds(10));
CheckNoIdleEvent();
CheckNoTimeChangedEvent();
Assert.AreEqual(TimeSpan.FromMilliseconds(20), timer.Time);
// Resume
timer.Start();
clock.Update(TimeSpan.FromMilliseconds(10));
CheckNoIdleEvent();
CheckTimeChangedEvent(TimeSpan.FromMilliseconds(30), TimeSpan.FromMilliseconds(10));
Assert.AreEqual(TimeSpan.FromMilliseconds(30), timer.Time);
Assert.AreEqual(TimeSpan.FromMilliseconds(10), timer.DeltaTime);
Assert.AreEqual(0, timer.AccumulatedSteps);
Assert.AreEqual(0, timer.PendingSteps);
// Time step = 3 ∙ step size
clock.Update(TimeSpan.FromMilliseconds(34));
CheckNoIdleEvent();
CheckTimeChangedEvent(TimeSpan.FromMilliseconds(60), TimeSpan.FromMilliseconds(30));
Assert.AreEqual(TimeSpan.FromMilliseconds(60), timer.Time);
Assert.AreEqual(TimeSpan.FromMilliseconds(30), timer.DeltaTime);
Assert.AreEqual(0, timer.AccumulatedSteps);
Assert.AreEqual(0, timer.PendingSteps);
// Time step = 3 ∙ step size
// (27 ms + 4 ms from previous step = 31 ms)
clock.Update(TimeSpan.FromMilliseconds(27));
CheckNoIdleEvent();
CheckTimeChangedEvent(TimeSpan.FromMilliseconds(90), TimeSpan.FromMilliseconds(30));
Assert.AreEqual(TimeSpan.FromMilliseconds(90), timer.Time);
Assert.AreEqual(TimeSpan.FromMilliseconds(30), timer.DeltaTime);
Assert.AreEqual(0, timer.AccumulatedSteps);
Assert.AreEqual(0, timer.PendingSteps);
// Time step = step size
// (9 ms + 1 ms from previous step = 10 ms)
clock.Update(TimeSpan.FromMilliseconds(9));
CheckNoIdleEvent();
CheckTimeChangedEvent(TimeSpan.FromMilliseconds(100), TimeSpan.FromMilliseconds(10));
Assert.AreEqual(TimeSpan.FromMilliseconds(100), timer.Time);
Assert.AreEqual(TimeSpan.FromMilliseconds(10), timer.DeltaTime);
Assert.AreEqual(0, timer.AccumulatedSteps);
Assert.AreEqual(0, timer.PendingSteps);
}