public void CompositeCounter_BasicVerification()
{
var sumTotal = new SumTotal();
var ratePerSec = new RatePerSecond();
var meanPerSec =
new MeanAverage(
ratePerSec.Denominator);
var medianPerSec = new MedianAverage();
var movingAverage = new MovingAverage(7);
var composite = new CompositeCounter()
.AddCounter(sumTotal)
.AddCounter(ratePerSec)
.AddCounter(meanPerSec)
.AddCounter(medianPerSec)
.AddCounter(movingAverage);
var expectedSumTotal = 0L;
var elapsedTime = new ElapsedTime(ElapsedTime.ElapsedTimeUnitType.Milliseconds);
while (elapsedTime.Value <= 500)
{
Thread.Sleep(50);
expectedSumTotal++;
composite.Increment(1);
}
Thread.Sleep(500);
Assert.AreEqual(expectedSumTotal, sumTotal.Value);
Assert.AreEqual(10 /* == 1 per 50ms for 500ms */, ratePerSec.Value);
Assert.AreEqual(sumTotal.Value, composite.Value);
}
public void ObservedValue_BasicVerification()
{
var minObservedValue = new ObservedValue(ObservationType.Minimum);
Assert.AreEqual(0, minObservedValue.Value, "because an unused `ObservedValue` counter should not return a non-zero result.");
minObservedValue.Observe(1);
Assert.AreEqual(1, minObservedValue.Value, "because the first use of `ObservedValue` should always mutate the default state.");
var maxObservedValue = new ObservedValue(ObservationType.Maximum);
Assert.AreEqual(0, maxObservedValue.Value, "because an unused ObservedValue counter should not return a non-zero result.");
maxObservedValue.Observe(-1);
Assert.AreEqual(-1, maxObservedValue.Value, "because the first use of `ObservedValue` should always mutate the default state.");
var lastObservedValue = new ObservedValue(ObservationType.Last);
var composite = new CompositeCounter()
.AddCounter(minObservedValue)
.AddCounter(maxObservedValue)
.AddCounter(lastObservedValue);
var expectedlastValue = 0L;
var expectedMinValue = 0L;
var expectedMaxValue = 0L;
var rng = System.Security.Cryptography.RandomNumberGenerator.Create();
for (int i = -10; i <= 10; i++)
{
var buf = new byte[4];
rng.GetNonZeroBytes(buf);
expectedlastValue = System.BitConverter.ToInt32(buf) * i;
if (expectedlastValue < expectedMinValue)
{
expectedMinValue = expectedlastValue;
}
if (expectedlastValue > expectedMaxValue)
{
expectedMaxValue = expectedlastValue;
}
composite.Increment(expectedlastValue);
}
Assert.AreEqual(expectedlastValue, lastObservedValue.Value);
Assert.AreEqual(expectedMinValue, minObservedValue.Value);
Assert.AreEqual(expectedMaxValue, maxObservedValue.Value);
}