public void Returns_empty_uniform_snapshot_when_zero_size()
{
var reservoir = new DefaultSlidingWindowReservoir(0);
reservoir.GetSnapshot().Should().BeOfType <UniformSnapshot>();
reservoir.GetSnapshot().Size.Should().Be(0);
reservoir.GetSnapshot().Values.Should().BeEmpty();
}
public void can_store_small_sample()
{
_reservoir.Update(1L);
_reservoir.Update(2L);
_reservoir.GetSnapshot().Values.Should().ContainInOrder(1L, 2L);
}
public void Can_reset()
{
_reservoir.Update(1L);
_reservoir.Reset();
_reservoir.Update(2L);
_reservoir.Update(3L);
_reservoir.GetSnapshot().Values.Should().NotContain(1L);
_reservoir.GetSnapshot().Values.Should().ContainInOrder(2L, 3L);
}
public void SlidingWindowReservoir()
{
var reservoir = new DefaultSlidingWindowReservoir(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 DefaultSlidingWindowReservoir();
_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);
}