public void should_reset_the_gauge()
{
var min = new MinGauge(new MetricConfig("min2"));
min.Update(42L);
Measure measure = Testing.Sync <Measure>(min, min.GetMeasure, min.context_);
Assert.That(measure.Value, Is.EqualTo(42L));
min.Reset();
min.Update(50L);
measure = Testing.Sync <Measure>(min, min.GetMeasure, min.context_);
Assert.That(measure.Value, Is.EqualTo(50D));
}
public void should_reset_the_gauge()
{
var max = new MaxGauge(new MetricConfig("max2"));
max.Update(42L);
Measure measure = Testing.Sync <Measure>(max, max.GetMeasure, max.context_);
Assert.That(measure.Value, Is.EqualTo(42L));
max.Reset();
max.Update(40L);
measure = Testing.Sync <Measure>(max, max.GetMeasure, max.context_);
Assert.That(measure.Value, Is.EqualTo(40d));
}
public void should_measure_the_total_time_per_step()
{
var minute = TimeSpan.FromMinutes(1);
var config = new MetricConfig("counter1");
var clock = new StepClock(TimeSpan.FromMinutes(1));
var context = new MetricContext(clock);
var timer =
new BucketTimer.Builder(config)
.WithBuckets(new long[] { 60, 120, 180 })
.WithTimeUnit(TimeUnit.Seconds)
.WithMeasureUnit(TimeUnit.Minutes)
.WithContext(context)
.Build();
IMetric total =
timer
.Metrics
.First(
x => x.Config.Tags.FirstOrDefault(t => t.Value == "total") != null);
clock.TickNow(1);
timer.Update(TimeSpan.FromSeconds(10));
timer.Update(TimeSpan.FromSeconds(10));
timer.Update(TimeSpan.FromSeconds(10));
var measure = Testing.Sync <Measure>(total, total.GetMeasure, context);
Assert.That(measure.Value, Is.EqualTo(30d / 60));
OnStep(total);
clock.TickNow(1);
timer.Update(TimeSpan.FromSeconds(30));
measure = Testing.Sync <Measure>(total, total.GetMeasure, context);
Assert.That(measure.Value, Is.EqualTo(30d / 60));
OnStep(total);
clock.TickNow(1);
timer.Update(TimeSpan.FromSeconds(60));
measure = Testing.Sync <Measure>(total, total.GetMeasure, context);
Assert.That(measure.Value, Is.EqualTo(1));
}
public void should_compute_the_mean_rate_of_values()
{
var clock = new StepClock(TimeSpan.FromMilliseconds(1));
var mean = new MeanRate(new MetricConfig("test"), TimeUnit.Seconds,
new MetricContext(clock));
// add 1000 elemets at rate of 10 events/second
for (int i = 0; i < 1000; i++)
{
mean.Mark();
clock.TickNow(100);
}
double value =
Testing.Sync <Measure>(mean, mean.GetMeasure, mean.context_).Value;
Assert.That(value, Is.EqualTo(10));
}
public void should_count_the_number_of_times_a_bucket_was_hit()
{
var minute = TimeSpan.FromMinutes(1);
var config = new MetricConfig("counter1");
var clock = new StepClock(TimeSpan.FromMinutes(3));
var context = new MetricContext(clock);
var timer =
new BucketTimer.Builder(config)
.WithBuckets(new long[] { 60, 120, 180 })
.WithTimeUnit(TimeUnit.Seconds)
.WithMeasureUnit(TimeUnit.Minutes)
.WithContext(context)
.Build();
IMetric b60 = GetMetricWithTag(timer, "bucket=060s");
IMetric b120 = GetMetricWithTag(timer, "bucket=120s");
IMetric b180 = GetMetricWithTag(timer, "bucket=180s");
clock.TickNow(1);
timer.Update(TimeSpan.FromSeconds(10));
timer.Update(TimeSpan.FromSeconds(10));
timer.Update(TimeSpan.FromSeconds(10));
var measure = Testing.Sync <Measure>(b60, b60.GetMeasure, context);
Assert.That(measure.Value, Is.EqualTo(1));
measure = Testing.Sync <Measure>(b120, b120.GetMeasure, context);
Assert.That(measure.Value, Is.EqualTo(0));
measure = Testing.Sync <Measure>(b180, b180.GetMeasure, context);
Assert.That(measure.Value, Is.EqualTo(0));
OnStep(b60, b120, b180);
clock.TickNow(1);
timer.Update(TimeSpan.FromSeconds(30));
timer.Update(TimeSpan.FromSeconds(61));
timer.Update(TimeSpan.FromSeconds(65));
measure = Testing.Sync <Measure>(b60, b60.GetMeasure, context);
Assert.That(measure.Value, Is.EqualTo(1 / 3d));
measure = Testing.Sync <Measure>(b120, b120.GetMeasure, context);
Assert.That(measure.Value, Is.EqualTo(2 / 3d));
measure = Testing.Sync <Measure>(b180, b180.GetMeasure, context);
Assert.That(measure.Value, Is.EqualTo(0));
OnStep(b60, b120, b180);
clock.TickNow(1);
timer.Update(TimeSpan.FromSeconds(180));
measure = Testing.Sync <Measure>(b60, b60.GetMeasure, context);
Assert.That(measure.Value, Is.EqualTo(0));
measure = Testing.Sync <Measure>(b120, b120.GetMeasure, context);
Assert.That(measure.Value, Is.EqualTo(0));
measure = Testing.Sync <Measure>(b180, b180.GetMeasure, context);
Assert.That(measure.Value, Is.EqualTo(1 / 3d));
}
