public void can_records_user_value()
{
var reservoir = new DefaultAlgorithmRReservoir(100);
reservoir.Update(2L, "B");
reservoir.Update(1L, "A");
reservoir.GetSnapshot().MinUserValue.Should().Be("A");
reservoir.GetSnapshot().MaxUserValue.Should().Be("B");
}
public void of_100_out_of_1000_elements()
{
var reservoir = new DefaultAlgorithmRReservoir(100);
for (var i = 0; i < 1000; i++)
{
reservoir.Update(i);
}
reservoir.Size.Should().Be(100);
reservoir.GetSnapshot().Size.Should().Be(100);
reservoir.GetSnapshot().Values.Should().OnlyContain(v => 0 <= v && v < 1000);
}
public void UniformReservoir()
{
var reservoir = new DefaultAlgorithmRReservoir(Constants.ReservoirSampling.DefaultSampleSize);
foreach (var sample in _samples)
{
reservoir.Update(sample);
}
var snapshot = reservoir.GetSnapshot();
AssertValues(snapshot);
}
public override void Setup()
{
_fixture = new MetricsCoreTestFixture();
_reservoir = new DefaultAlgorithmRReservoir();
_scheduler = new DefaultTaskScheduler();
_scheduler.Interval(
TimeSpan.FromMilliseconds(10),
TaskCreationOptions.None,
() =>
{
_reservoir.GetSnapshot();
_reservoir.Reset();
});
}
private Task Tick()
{
try
{
_reservoir.GetSnapshot();
_reservoir.Reset();
}
catch (Exception)
{
}
finally
{
lock (_syncLock)
{
if (!_disposing)
{
SetScheduler();
}
}
}
return(Task.CompletedTask);
}