public async Task CheckIdleBehavior()
{
var activator = Using(new BuiltinHandlerActivator());
var transportDecorator = new LoggingTransportDecorator();
Configure.With(activator)
.Transport(t =>
{
t.UseInMemoryTransport(new InMemNetwork(), "backoff-check");
t.Decorate(c =>
{
var transport = c.Get<ITransport>();
transportDecorator.Transport = transport;
return transportDecorator;
});
})
.Options(o =>
{
o.SetBackoffTimes(
// first five seconds
TimeSpan.FromSeconds(0.01),
TimeSpan.FromSeconds(0.01),
TimeSpan.FromSeconds(0.01),
TimeSpan.FromSeconds(0.01),
TimeSpan.FromSeconds(0.01),
// next five seconds
TimeSpan.FromSeconds(0.1),
TimeSpan.FromSeconds(0.1),
TimeSpan.FromSeconds(0.1),
TimeSpan.FromSeconds(0.1),
TimeSpan.FromSeconds(0.1),
// the rest of the time
TimeSpan.FromSeconds(0.5)
);
})
.Start();
await Task.Delay(TimeSpan.FromSeconds(15));
var recordedReceiveTimes = transportDecorator.ReceiveTimes.ToList();
var results = recordedReceiveTimes
.GroupBy(t => t.RoundTo(TimeSpan.FromSeconds(1)))
.OrderBy(g => g.Key)
.Select(g => new
{
Time = g.Key,
Count = g.Count()
})
.ToList();
Console.WriteLine(string.Join(Environment.NewLine, results.Select(r => $"{r.Time}: {new string('*', r.Count)}")));
var firstPeriodMedian = results.Skip(0).Take(5).GetMedianBy(g => g.Time);
var secondPeriodMedian = results.Skip(5).Take(5).GetMedianBy(g => g.Time);
var thirdPeriodMedian = results.Skip(10).Take(5).GetMedianBy(g => g.Time);
Console.WriteLine($" First period median: {firstPeriodMedian}");
Console.WriteLine($"Second period median: {secondPeriodMedian}");
Console.WriteLine($" Third period median: {thirdPeriodMedian}");
Assert.That(firstPeriodMedian.Count, Is.GreaterThan(4*secondPeriodMedian.Count),
"Expected receive calls during the first period to be more than four times as frequent as during the second period");
Assert.That(secondPeriodMedian.Count, Is.GreaterThan(4*thirdPeriodMedian.Count),
"Expected receive calls during the second period to be more than four times as frequent as during the third period");
}
public async Task CheckIdleBehavior()
{
var activator = Using(new BuiltinHandlerActivator());
var transportDecorator = new LoggingTransportDecorator();
Configure.With(activator)
.Transport(t =>
{
t.UseInMemoryTransport(new InMemNetwork(), "backoff-check");
t.Decorate(c =>
{
var transport = c.Get <ITransport>();
transportDecorator.Transport = transport;
return(transportDecorator);
});
})
.Options(o =>
{
o.SetBackoffTimes(
// first ten seconds
TimeSpan.FromSeconds(0.01),
TimeSpan.FromSeconds(0.01),
TimeSpan.FromSeconds(0.01),
TimeSpan.FromSeconds(0.01),
TimeSpan.FromSeconds(0.01),
TimeSpan.FromSeconds(0.01),
TimeSpan.FromSeconds(0.01),
TimeSpan.FromSeconds(0.01),
TimeSpan.FromSeconds(0.01),
TimeSpan.FromSeconds(0.01),
// next ten seconds
TimeSpan.FromSeconds(0.1),
TimeSpan.FromSeconds(0.1),
TimeSpan.FromSeconds(0.1),
TimeSpan.FromSeconds(0.1),
TimeSpan.FromSeconds(0.1),
TimeSpan.FromSeconds(0.1),
TimeSpan.FromSeconds(0.1),
TimeSpan.FromSeconds(0.1),
TimeSpan.FromSeconds(0.1),
TimeSpan.FromSeconds(0.1),
// the rest of the time
TimeSpan.FromSeconds(0.5)
);
})
.Start();
await Task.Delay(TimeSpan.FromSeconds(30));
var recordedReceiveTimes = transportDecorator.ReceiveTimes.ToList();
var results = recordedReceiveTimes
.GroupBy(t => t.RoundTo(TimeSpan.FromSeconds(1)))
.OrderBy(g => g.Key)
.Select(g => new
{
Time = g.Key,
Count = g.Count()
})
.ToList();
Console.WriteLine(string.Join(Environment.NewLine, results.Select(r => $"{r.Time}: {new string('*', r.Count)}")));
var firstPeriodMedian = results.Skip(0).Take(10).GetMedianBy(g => g.Time);
var secondPeriodMedian = results.Skip(10).Take(10).GetMedianBy(g => g.Time);
var thirdPeriodMedian = results.Skip(20).Take(10).GetMedianBy(g => g.Time);
Console.WriteLine($" First period median: {firstPeriodMedian}");
Console.WriteLine($"Second period median: {secondPeriodMedian}");
Console.WriteLine($" Third period median: {thirdPeriodMedian}");
Assert.That(firstPeriodMedian.Count, Is.GreaterThanOrEqualTo(4 * secondPeriodMedian.Count),
"Expected receive calls during the first period to be more than four times as frequent as during the second period");
Assert.That(secondPeriodMedian.Count, Is.GreaterThanOrEqualTo(4 * thirdPeriodMedian.Count),
"Expected receive calls during the second period to be more than four times as frequent as during the third period");
}
