138 lines
4.8 KiB
C#
138 lines
4.8 KiB
C#
// <copyright file="AggregatorTest.cs" company="OpenTelemetry Authors">
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// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// </copyright>
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using System;
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using Xunit;
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namespace OpenTelemetry.Metrics.Tests
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{
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public class AggregatorTest
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{
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private readonly AggregatorStore aggregatorStore = new("test", AggregationType.Histogram, AggregationTemporality.Cumulative, 1024, Metric.DefaultHistogramBounds);
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[Fact]
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public void HistogramDistributeToAllBucketsDefault()
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{
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var histogramPoint = new MetricPoint(this.aggregatorStore, AggregationType.Histogram, null, null, Metric.DefaultHistogramBounds);
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histogramPoint.Update(-1);
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histogramPoint.Update(0);
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histogramPoint.Update(2);
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histogramPoint.Update(5);
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histogramPoint.Update(8);
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histogramPoint.Update(10);
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histogramPoint.Update(11);
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histogramPoint.Update(25);
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histogramPoint.Update(40);
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histogramPoint.Update(50);
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histogramPoint.Update(70);
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histogramPoint.Update(75);
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histogramPoint.Update(99);
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histogramPoint.Update(100);
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histogramPoint.Update(246);
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histogramPoint.Update(250);
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histogramPoint.Update(499);
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histogramPoint.Update(500);
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histogramPoint.Update(999);
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histogramPoint.Update(1000);
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histogramPoint.Update(1001);
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histogramPoint.Update(10000000);
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histogramPoint.TakeSnapshot(true);
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var count = histogramPoint.GetHistogramCount();
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Assert.Equal(22, count);
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int actualCount = 0;
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foreach (var histogramMeasurement in histogramPoint.GetHistogramBuckets())
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{
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Assert.Equal(2, histogramMeasurement.BucketCount);
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actualCount++;
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}
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}
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[Fact]
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public void HistogramDistributeToAllBucketsCustom()
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{
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var boundaries = new double[] { 10, 20 };
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var histogramPoint = new MetricPoint(this.aggregatorStore, AggregationType.Histogram, null, null, boundaries);
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// 5 recordings <=10
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histogramPoint.Update(-10);
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histogramPoint.Update(0);
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histogramPoint.Update(1);
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histogramPoint.Update(9);
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histogramPoint.Update(10);
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// 2 recordings >10, <=20
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histogramPoint.Update(11);
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histogramPoint.Update(19);
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histogramPoint.TakeSnapshot(true);
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var count = histogramPoint.GetHistogramCount();
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var sum = histogramPoint.GetHistogramSum();
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// Sum of all recordings
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Assert.Equal(40, sum);
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// Count = # of recordings
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Assert.Equal(7, count);
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int index = 0;
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int actualCount = 0;
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var expectedBucketCounts = new long[] { 5, 2, 0 };
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foreach (var histogramMeasurement in histogramPoint.GetHistogramBuckets())
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{
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Assert.Equal(expectedBucketCounts[index], histogramMeasurement.BucketCount);
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index++;
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actualCount++;
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}
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Assert.Equal(boundaries.Length + 1, actualCount);
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}
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[Fact]
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public void HistogramWithOnlySumCount()
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{
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var boundaries = Array.Empty<double>();
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var histogramPoint = new MetricPoint(this.aggregatorStore, AggregationType.HistogramSumCount, null, null, boundaries);
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histogramPoint.Update(-10);
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histogramPoint.Update(0);
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histogramPoint.Update(1);
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histogramPoint.Update(9);
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histogramPoint.Update(10);
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histogramPoint.Update(11);
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histogramPoint.Update(19);
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histogramPoint.TakeSnapshot(true);
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var count = histogramPoint.GetHistogramCount();
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var sum = histogramPoint.GetHistogramSum();
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// Sum of all recordings
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Assert.Equal(40, sum);
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// Count = # of recordings
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Assert.Equal(7, count);
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// There should be no enumeration of BucketCounts and ExplicitBounds for HistogramSumCount
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var enumerator = histogramPoint.GetHistogramBuckets().GetEnumerator();
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Assert.False(enumerator.MoveNext());
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}
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}
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}
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