public void ControlBeforeUpdate()
{
var controller = new BandwidthController {TargetSpeed = 1024};
Assert.IsFalse(controller.CanTransmit(3453), "Controller should NOT allow more than target speed");
Assert.IsTrue(controller.CanTransmit(512), "Controller should allow transmit 512");
controller.SetTransmittion(512);
Assert.IsTrue(controller.CanTransmit(512), "Controller should allow transmit 512");
controller.SetTransmittion(512);
Assert.IsFalse(controller.CanTransmit(512), "Controller should NOT allow transmit 512 after exceed the limit");
}
public void ControlSmallTimeFrame()
{
var controller = new BandwidthController { TargetSpeed = 1024 };
controller.SetTransmittion(1024);
controller.Update(measuredSpeed: 1024, deltaTime: TimeSpan.FromSeconds(0.5));
Assert.IsFalse(controller.CanTransmit(1024), "Controller should NOT allow transmit ");
}
public void ControlAccumulatedBytesAfterUpdate()
{
var controller = new BandwidthController { TargetSpeed = 1024 };
controller.SetTransmittion(0);
controller.Update(measuredSpeed: 0, deltaTime: TimeSpan.FromSeconds(1));
Assert.IsTrue(controller.CanTransmit(2048), "Controller should allow transmit 2048");
}
public void ControlTooFast()
{
var controller = new BandwidthController { TargetSpeed = 1024 };
controller.SetTransmittion(4 * 1024);
controller.Update(measuredSpeed: 4 * 1024, deltaTime: TimeSpan.FromSeconds(1));
Assert.IsFalse(controller.CanTransmit(1), "Controller should NOT allow transmit");
Assert.IsTrue(controller.CanTransmit(0), "Controller should allow transmit 0 bytes");
}
public void ShouldTakeAbout4Seconds()
{
var list = new Queue(Enumerable.Range(1, 4000).ToArray());
var controller = new BandwidthController { TargetSpeed = 1000 };
var processed = 0;
var timer = new System.Timers.Timer();
timer.Elapsed += (sender, args) =>
{
lock (controller)
{
controller.Update(processed, TimeSpan.FromMilliseconds(250));
processed = 0;
}
};
timer.Interval = 250;
var sw = new Stopwatch();
timer.Start();
sw.Start();
while (list.Count > 0)
{
if (controller.CanTransmit(1))
{
list.Dequeue();
processed++;
controller.SetTransmittion(1);
}
else
{
Thread.Sleep(10);
}
}
timer.Stop();
sw.Stop();
var measuredTime = sw.ElapsedMilliseconds;
const int expectedTime = 4000;
Assert.IsTrue(Math.Abs(measuredTime - expectedTime) < (expectedTime * 0.3));
}
public void ControlTooSlow()
{
var controller = new BandwidthController { TargetSpeed = 1024 };
controller.SetTransmittion(512);
controller.Update(measuredSpeed: 512, deltaTime: TimeSpan.FromSeconds(1));
Assert.IsFalse(controller.CanTransmit(2048), "Controller should NOT allow transmit more than 1024 bytes");
Assert.IsTrue(controller.CanTransmit(1024), "Controller should allow transmit 1024");
}