public void ZeroAveragingPeriod()
{
var monitor = new SpeedMonitor(0);
monitor.AddDelta(1000);
monitor.Tick(1000);
Assert.AreEqual(1000, monitor.Rate, "#1");
}
public void Tick()
{
var monitor = new SpeedMonitor();
monitor.AddDelta(1000);
monitor.Tick(1000);
Assert.AreEqual(1000, monitor.Rate, "#1");
}
public void TickFull()
{
// Averaging period is 3, tick 3 times.
var monitor = new SpeedMonitor(3);
monitor.AddDelta(1200);
monitor.Tick(1000);
monitor.Tick(1000);
monitor.Tick(1000);
Assert.AreEqual(400, monitor.Rate, "#1");
}
public void TickTwice()
{
// Send 1000 bytes in 2000 milliseconds. Check
// transfer rate is then 500bytes/second
var monitor = new SpeedMonitor();
monitor.AddDelta(1000);
monitor.Tick(1000);
monitor.Tick(1000);
Assert.AreEqual(500, monitor.Rate, "#1");
}
public void Tick_AveragingTwo_TickThree()
{
// Send data only in the first tick. When we tick a third time
// we should have a transfer rate of zero as the data should vanish.
var monitor = new SpeedMonitor(2);
monitor.AddDelta(1200);
monitor.Tick(1000);
monitor.Tick(1000);
monitor.Tick(1000);
Assert.AreEqual(0, monitor.Rate, "#1");
}
public void VeryFastRate()
{
// We're reporting 500MB every 750ms period
var speed = 500 * 1024 * 1024;
// The actual speed averaged over a 1 second period would be this
var estimatedActualSpeed = speed * 4 / 3;
var monitor = new SpeedMonitor();
for (int i = 0; i < 37; i++)
{
monitor.AddDelta(speed);
monitor.Tick(750);
Assert.Greater(monitor.Rate, 0, "#1." + i);
Assert.Less(monitor.Rate, estimatedActualSpeed + (1 * 1024 * 1024), "#2." + i);
}
// Should be somewhere between 499 and 501 MB/sec
Assert.IsTrue((monitor.Rate - estimatedActualSpeed) < (1 * 1024 * 1024), "#3");
}
