660 lines
25 KiB
C#
660 lines
25 KiB
C#
// <copyright file="MetricAPITest.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 System.Collections.Generic;
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using System.Diagnostics;
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using System.Diagnostics.Metrics;
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using System.Threading;
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using OpenTelemetry.Exporter;
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using OpenTelemetry.Tests;
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using Xunit;
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using Xunit.Abstractions;
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namespace OpenTelemetry.Metrics.Tests
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{
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#pragma warning disable SA1000 // KeywordsMustBeSpacedCorrectly https://github.com/DotNetAnalyzers/StyleCopAnalyzers/issues/3214
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public class MetricApiTest
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{
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private const int MaxTimeToAllowForFlush = 10000;
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private static int numberOfThreads = Environment.ProcessorCount;
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private static long deltaLongValueUpdatedByEachCall = 10;
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private static double deltaDoubleValueUpdatedByEachCall = 11.987;
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private static int numberOfMetricUpdateByEachThread = 100000;
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private readonly ITestOutputHelper output;
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public MetricApiTest(ITestOutputHelper output)
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{
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this.output = output;
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}
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[Fact]
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public void ObserverCallbackTest()
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{
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using var meter = new Meter(Utils.GetCurrentMethodName());
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var exportedItems = new List<Metric>();
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using var meterProvider = Sdk.CreateMeterProviderBuilder()
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.AddMeter(meter.Name)
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.AddInMemoryExporter(exportedItems)
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.Build();
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var measurement = new Measurement<int>(100, new("name", "apple"), new("color", "red"));
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meter.CreateObservableGauge("myGauge", () => measurement);
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meterProvider.ForceFlush(MaxTimeToAllowForFlush);
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Assert.Single(exportedItems);
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var metric = exportedItems[0];
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Assert.Equal("myGauge", metric.Name);
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List<MetricPoint> metricPoints = new List<MetricPoint>();
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foreach (ref var mp in metric.GetMetricPoints())
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{
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metricPoints.Add(mp);
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}
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Assert.Single(metricPoints);
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var metricPoint = metricPoints[0];
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Assert.Equal(100, metricPoint.LongValue);
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Assert.NotNull(metricPoint.Keys);
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Assert.NotNull(metricPoint.Values);
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}
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[Fact]
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public void ObserverCallbackExceptionTest()
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{
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using var meter = new Meter(Utils.GetCurrentMethodName());
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var exportedItems = new List<Metric>();
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using var meterProvider = Sdk.CreateMeterProviderBuilder()
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.AddMeter(meter.Name)
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.AddInMemoryExporter(exportedItems)
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.Build();
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var measurement = new Measurement<int>(100, new("name", "apple"), new("color", "red"));
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meter.CreateObservableGauge("myGauge", () => measurement);
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meter.CreateObservableGauge<long>("myBadGauge", observeValues: () => throw new Exception("gauge read error"));
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meterProvider.ForceFlush(MaxTimeToAllowForFlush);
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Assert.Equal(2, exportedItems.Count);
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var metric = exportedItems[0];
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Assert.Equal("myGauge", metric.Name);
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List<MetricPoint> metricPoints = new List<MetricPoint>();
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foreach (ref var mp in metric.GetMetricPoints())
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{
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metricPoints.Add(mp);
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}
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Assert.Single(metricPoints);
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var metricPoint = metricPoints[0];
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Assert.Equal(100, metricPoint.LongValue);
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Assert.NotNull(metricPoint.Keys);
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Assert.NotNull(metricPoint.Values);
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metric = exportedItems[1];
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Assert.Equal("myBadGauge", metric.Name);
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metricPoints.Clear();
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foreach (ref var mp in metric.GetMetricPoints())
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{
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metricPoints.Add(mp);
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}
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Assert.Empty(metricPoints);
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}
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[Theory]
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[InlineData(AggregationTemporality.Cumulative)]
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[InlineData(AggregationTemporality.Delta)]
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public void StreamNamesDuplicatesAreNotAllowedTest(AggregationTemporality temporality)
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{
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var metricItems = new List<Metric>();
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var metricExporter = new InMemoryExporter<Metric>(metricItems);
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var metricReader = new BaseExportingMetricReader(metricExporter)
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{
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PreferredAggregationTemporality = temporality,
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};
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using var meter1 = new Meter($"{Utils.GetCurrentMethodName()}.1.{temporality}");
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using var meter2 = new Meter($"{Utils.GetCurrentMethodName()}.2.{temporality}");
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using var meterProvider = Sdk.CreateMeterProviderBuilder()
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.AddMeter(meter1.Name)
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.AddMeter(meter2.Name)
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.AddReader(metricReader)
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.Build();
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// Expecting one metric stream.
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var counterLong = meter1.CreateCounter<long>("name1");
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counterLong.Add(10);
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metricReader.Collect();
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Assert.Single(metricItems);
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// The following will be ignored as
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// metric of same name exists.
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// Metric stream will remain one.
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var anotherCounterSameName = meter1.CreateCounter<long>("name1");
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anotherCounterSameName.Add(10);
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metricItems.Clear();
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metricReader.Collect();
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Assert.Single(metricItems);
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// The following will also be ignored
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// as the name is same.
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// (the Meter name is not part of stream name)
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var anotherCounterSameNameDiffMeter = meter2.CreateCounter<long>("name1");
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anotherCounterSameNameDiffMeter.Add(10);
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metricItems.Clear();
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metricReader.Collect();
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Assert.Single(metricItems);
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}
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[Theory]
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[InlineData(true)]
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[InlineData(false)]
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public void MeterSourcesWildcardSupportMatchTest(bool hasView)
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{
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using var meter1 = new Meter("AbcCompany.XyzProduct.ComponentA");
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using var meter2 = new Meter("abcCompany.xYzProduct.componentC"); // Wildcard match is case insensitive.
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using var meter3 = new Meter("DefCompany.AbcProduct.ComponentC");
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using var meter4 = new Meter("DefCompany.XyzProduct.ComponentC"); // Wildcard match supports matching multiple patterns.
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using var meter5 = new Meter("GhiCompany.qweProduct.ComponentN");
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using var meter6 = new Meter("SomeCompany.SomeProduct.SomeComponent");
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var exportedItems = new List<Metric>();
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var meterProviderBuilder = Sdk.CreateMeterProviderBuilder()
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.AddMeter("AbcCompany.XyzProduct.*")
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.AddMeter("DefCompany.*.ComponentC")
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.AddMeter("GhiCompany.qweProduct.ComponentN") // Mixing of non-wildcard meter name and wildcard meter name.
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.AddInMemoryExporter(exportedItems);
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if (hasView)
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{
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meterProviderBuilder.AddView("myGauge1", "newName");
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}
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using var meterProvider = meterProviderBuilder.Build();
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var measurement = new Measurement<int>(100, new("name", "apple"), new("color", "red"));
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meter1.CreateObservableGauge("myGauge1", () => measurement);
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meter2.CreateObservableGauge("myGauge2", () => measurement);
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meter3.CreateObservableGauge("myGauge3", () => measurement);
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meter4.CreateObservableGauge("myGauge4", () => measurement);
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meter5.CreateObservableGauge("myGauge5", () => measurement);
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meter6.CreateObservableGauge("myGauge6", () => measurement);
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meterProvider.ForceFlush(MaxTimeToAllowForFlush);
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Assert.True(exportedItems.Count == 5); // "SomeCompany.SomeProduct.SomeComponent" will not be subscribed.
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if (hasView)
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{
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Assert.Equal("newName", exportedItems[0].Name);
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}
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else
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{
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Assert.Equal("myGauge1", exportedItems[0].Name);
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}
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Assert.Equal("myGauge2", exportedItems[1].Name);
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Assert.Equal("myGauge3", exportedItems[2].Name);
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Assert.Equal("myGauge4", exportedItems[3].Name);
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Assert.Equal("myGauge5", exportedItems[4].Name);
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}
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[Theory]
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[InlineData(true)]
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[InlineData(false)]
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public void MeterSourcesWildcardSupportNegativeTestNoMeterAdded(bool hasView)
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{
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using var meter1 = new Meter($"AbcCompany.XyzProduct.ComponentA.{hasView}");
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using var meter2 = new Meter($"abcCompany.xYzProduct.componentC.{hasView}");
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var exportedItems = new List<Metric>();
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var meterProviderBuilder = Sdk.CreateMeterProviderBuilder()
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.AddInMemoryExporter(exportedItems);
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if (hasView)
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{
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meterProviderBuilder.AddView("gauge1", "renamed");
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}
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using var meterProvider = meterProviderBuilder.Build();
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var measurement = new Measurement<int>(100, new("name", "apple"), new("color", "red"));
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meter1.CreateObservableGauge("myGauge1", () => measurement);
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meter2.CreateObservableGauge("myGauge2", () => measurement);
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meterProvider.ForceFlush(MaxTimeToAllowForFlush);
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Assert.True(exportedItems.Count == 0);
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}
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[Theory]
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[InlineData(true)]
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[InlineData(false)]
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public void CounterAggregationTest(bool exportDelta)
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{
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var metricItems = new List<Metric>();
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var metricExporter = new InMemoryExporter<Metric>(metricItems);
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var metricReader = new BaseExportingMetricReader(metricExporter)
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{
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PreferredAggregationTemporality = exportDelta ? AggregationTemporality.Delta : AggregationTemporality.Cumulative,
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};
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using var meter = new Meter($"{Utils.GetCurrentMethodName()}.{exportDelta}");
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var counterLong = meter.CreateCounter<long>("mycounter");
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using var meterProvider = Sdk.CreateMeterProviderBuilder()
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.AddMeter(meter.Name)
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.AddReader(metricReader)
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.Build();
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counterLong.Add(10);
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counterLong.Add(10);
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metricReader.Collect();
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long sumReceived = GetLongSum(metricItems);
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Assert.Equal(20, sumReceived);
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metricItems.Clear();
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counterLong.Add(10);
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counterLong.Add(10);
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metricReader.Collect();
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sumReceived = GetLongSum(metricItems);
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if (exportDelta)
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{
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Assert.Equal(20, sumReceived);
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}
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else
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{
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Assert.Equal(40, sumReceived);
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}
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metricItems.Clear();
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metricReader.Collect();
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sumReceived = GetLongSum(metricItems);
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if (exportDelta)
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{
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Assert.Equal(0, sumReceived);
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}
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else
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{
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Assert.Equal(40, sumReceived);
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}
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metricItems.Clear();
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counterLong.Add(40);
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counterLong.Add(20);
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metricReader.Collect();
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sumReceived = GetLongSum(metricItems);
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if (exportDelta)
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{
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Assert.Equal(60, sumReceived);
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}
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else
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{
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Assert.Equal(100, sumReceived);
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}
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}
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[Theory]
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[InlineData(true)]
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[InlineData(false)]
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public void ObservableCounterAggregationTest(bool exportDelta)
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{
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var metricItems = new List<Metric>();
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var metricExporter = new InMemoryExporter<Metric>(metricItems);
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var metricReader = new BaseExportingMetricReader(metricExporter)
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{
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PreferredAggregationTemporality = exportDelta ? AggregationTemporality.Delta : AggregationTemporality.Cumulative,
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};
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using var meter = new Meter($"{Utils.GetCurrentMethodName()}.{exportDelta}");
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int i = 1;
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var counterLong = meter.CreateObservableCounter(
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"observable-counter",
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() =>
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{
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return new List<Measurement<long>>()
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{
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new Measurement<long>(i++ * 10),
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};
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});
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using var meterProvider = Sdk.CreateMeterProviderBuilder()
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.AddMeter(meter.Name)
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.AddReader(metricReader)
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.Build();
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metricReader.Collect();
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long sumReceived = GetLongSum(metricItems);
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Assert.Equal(10, sumReceived);
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metricItems.Clear();
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metricReader.Collect();
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sumReceived = GetLongSum(metricItems);
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if (exportDelta)
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{
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Assert.Equal(10, sumReceived);
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}
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else
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{
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Assert.Equal(20, sumReceived);
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}
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metricItems.Clear();
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metricReader.Collect();
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sumReceived = GetLongSum(metricItems);
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if (exportDelta)
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{
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Assert.Equal(10, sumReceived);
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}
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else
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{
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Assert.Equal(30, sumReceived);
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}
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}
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[Theory]
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[InlineData(AggregationTemporality.Cumulative)]
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[InlineData(AggregationTemporality.Delta)]
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public void TestMetricPointCap(AggregationTemporality temporality)
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{
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var metricItems = new List<Metric>();
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var metricExporter = new InMemoryExporter<Metric>(metricItems);
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int MetricPointCount()
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{
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var count = 0;
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foreach (var metric in metricItems)
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{
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foreach (ref var metricPoint in metric.GetMetricPoints())
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{
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count++;
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}
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}
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return count;
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}
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var metricReader = new BaseExportingMetricReader(metricExporter)
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{
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PreferredAggregationTemporality = temporality,
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};
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using var meter = new Meter($"{Utils.GetCurrentMethodName()}.{temporality}");
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var counterLong = meter.CreateCounter<long>("mycounterCapTest");
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using var meterProvider = Sdk.CreateMeterProviderBuilder()
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.AddMeter(meter.Name)
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.AddReader(metricReader)
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.Build();
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// Make one Add with no tags.
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// as currently we reserve 0th index
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// for no tag point!
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// This may be changed later.
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counterLong.Add(10);
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for (int i = 0; i < AggregatorStore.MaxMetricPoints + 1; i++)
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{
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counterLong.Add(10, new KeyValuePair<string, object>("key", "value" + i));
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}
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metricReader.Collect();
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Assert.Equal(AggregatorStore.MaxMetricPoints, MetricPointCount());
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metricItems.Clear();
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metricReader.Collect();
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Assert.Equal(AggregatorStore.MaxMetricPoints, MetricPointCount());
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// These updates would be dropped.
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counterLong.Add(10, new KeyValuePair<string, object>("key", "valueA"));
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counterLong.Add(10, new KeyValuePair<string, object>("key", "valueB"));
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counterLong.Add(10, new KeyValuePair<string, object>("key", "valueC"));
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metricItems.Clear();
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metricReader.Collect();
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Assert.Equal(AggregatorStore.MaxMetricPoints, MetricPointCount());
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}
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[Fact]
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public void MultithreadedLongCounterTest()
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{
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var metricItems = new List<Metric>();
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var metricExporter = new InMemoryExporter<Metric>(metricItems);
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var metricReader = new BaseExportingMetricReader(metricExporter)
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{
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PreferredAggregationTemporality = AggregationTemporality.Cumulative,
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};
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using var meter = new Meter(Utils.GetCurrentMethodName());
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var counterLong = meter.CreateCounter<long>("mycounter");
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using var meterProvider = Sdk.CreateMeterProviderBuilder()
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.AddMeter(meter.Name)
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.AddReader(metricReader)
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.Build();
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// setup args to threads.
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var mreToBlockUpdateThreads = new ManualResetEvent(false);
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var mreToEnsureAllThreadsStarted = new ManualResetEvent(false);
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var argToThread = new UpdateThreadArguments<long>();
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argToThread.DeltaValueUpdatedByEachCall = deltaLongValueUpdatedByEachCall;
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argToThread.Counter = counterLong;
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argToThread.ThreadsStartedCount = 0;
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argToThread.MreToBlockUpdateThread = mreToBlockUpdateThreads;
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argToThread.MreToEnsureAllThreadsStart = mreToEnsureAllThreadsStarted;
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Thread[] t = new Thread[numberOfThreads];
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for (int i = 0; i < numberOfThreads; i++)
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{
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t[i] = new Thread(CounterUpdateThread<long>);
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t[i].Start(argToThread);
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}
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// Block until all threads started.
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mreToEnsureAllThreadsStarted.WaitOne();
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Stopwatch sw = Stopwatch.StartNew();
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// unblock all the threads.
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// (i.e let them start counter.Add)
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mreToBlockUpdateThreads.Set();
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for (int i = 0; i < numberOfThreads; i++)
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{
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// wait for all threads to complete
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t[i].Join();
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}
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var timeTakenInMilliseconds = sw.ElapsedMilliseconds;
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this.output.WriteLine($"Took {timeTakenInMilliseconds} msecs. Total threads: {numberOfThreads}, each thread doing {numberOfMetricUpdateByEachThread} recordings.");
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metricReader.Collect();
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var sumReceived = GetLongSum(metricItems);
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var expectedSum = deltaLongValueUpdatedByEachCall * numberOfMetricUpdateByEachThread * numberOfThreads;
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Assert.Equal(expectedSum, sumReceived);
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}
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[Fact]
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public void MultithreadedDoubleCounterTest()
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{
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var metricItems = new List<Metric>();
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var metricExporter = new InMemoryExporter<Metric>(metricItems);
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var metricReader = new BaseExportingMetricReader(metricExporter)
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{
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PreferredAggregationTemporality = AggregationTemporality.Cumulative,
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};
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using var meter = new Meter(Utils.GetCurrentMethodName());
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var counterDouble = meter.CreateCounter<double>("mycounter");
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using var meterProvider = Sdk.CreateMeterProviderBuilder()
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.AddMeter(meter.Name)
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.AddReader(metricReader)
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.Build();
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// setup args to threads.
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var mreToBlockUpdateThreads = new ManualResetEvent(false);
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var mreToEnsureAllThreadsStarted = new ManualResetEvent(false);
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var argToThread = new UpdateThreadArguments<double>();
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argToThread.DeltaValueUpdatedByEachCall = deltaDoubleValueUpdatedByEachCall;
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argToThread.Counter = counterDouble;
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argToThread.ThreadsStartedCount = 0;
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argToThread.MreToBlockUpdateThread = mreToBlockUpdateThreads;
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argToThread.MreToEnsureAllThreadsStart = mreToEnsureAllThreadsStarted;
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Thread[] t = new Thread[numberOfThreads];
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for (int i = 0; i < numberOfThreads; i++)
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{
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t[i] = new Thread(CounterUpdateThread<double>);
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t[i].Start(argToThread);
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}
|
|
|
|
// Block until all threads started.
|
|
mreToEnsureAllThreadsStarted.WaitOne();
|
|
|
|
Stopwatch sw = Stopwatch.StartNew();
|
|
|
|
// unblock all the threads.
|
|
// (i.e let them start counter.Add)
|
|
mreToBlockUpdateThreads.Set();
|
|
|
|
for (int i = 0; i < numberOfThreads; i++)
|
|
{
|
|
// wait for all threads to complete
|
|
t[i].Join();
|
|
}
|
|
|
|
var timeTakenInMilliseconds = sw.ElapsedMilliseconds;
|
|
this.output.WriteLine($"Took {timeTakenInMilliseconds} msecs. Total threads: {numberOfThreads}, each thread doing {numberOfMetricUpdateByEachThread} recordings.");
|
|
|
|
metricReader.Collect();
|
|
|
|
var sumReceived = GetDoubleSum(metricItems);
|
|
var expectedSum = deltaDoubleValueUpdatedByEachCall * numberOfMetricUpdateByEachThread * numberOfThreads;
|
|
var difference = Math.Abs(sumReceived - expectedSum);
|
|
Assert.True(difference <= 0.0001);
|
|
}
|
|
|
|
[Theory]
|
|
[MemberData(nameof(MetricsTestData.InvalidInstrumentNames), MemberType = typeof(MetricsTestData))]
|
|
public void InstrumentWithInvalidNameIsIgnoredTest(string instrumentName)
|
|
{
|
|
var exportedItems = new List<Metric>();
|
|
|
|
using var meter = new Meter("InstrumentWithInvalidNameIsIgnoredTest");
|
|
|
|
using var meterProvider = Sdk.CreateMeterProviderBuilder()
|
|
.AddMeter(meter.Name)
|
|
.AddInMemoryExporter(exportedItems)
|
|
.Build();
|
|
|
|
var counterLong = meter.CreateCounter<long>(instrumentName);
|
|
counterLong.Add(10);
|
|
meterProvider.ForceFlush(MaxTimeToAllowForFlush);
|
|
|
|
// instrument should have been ignored
|
|
// as its name does not comply with the specification
|
|
Assert.Empty(exportedItems);
|
|
}
|
|
|
|
[Theory]
|
|
[MemberData(nameof(MetricsTestData.ValidInstrumentNames), MemberType = typeof(MetricsTestData))]
|
|
public void InstrumentWithValidNameIsExportedTest(string name)
|
|
{
|
|
var exportedItems = new List<Metric>();
|
|
|
|
using var meter = new Meter("InstrumentValidNameIsExportedTest");
|
|
|
|
using var meterProvider = Sdk.CreateMeterProviderBuilder()
|
|
.AddMeter(meter.Name)
|
|
.AddInMemoryExporter(exportedItems)
|
|
.Build();
|
|
|
|
var counterLong = meter.CreateCounter<long>(name);
|
|
counterLong.Add(10);
|
|
meterProvider.ForceFlush(MaxTimeToAllowForFlush);
|
|
|
|
// Expecting one metric stream.
|
|
Assert.Single(exportedItems);
|
|
var metric = exportedItems[0];
|
|
Assert.Equal(name, metric.Name);
|
|
}
|
|
|
|
private static long GetLongSum(List<Metric> metrics)
|
|
{
|
|
long sum = 0;
|
|
foreach (var metric in metrics)
|
|
{
|
|
foreach (ref var metricPoint in metric.GetMetricPoints())
|
|
{
|
|
sum += metricPoint.LongValue;
|
|
}
|
|
}
|
|
|
|
return sum;
|
|
}
|
|
|
|
private static double GetDoubleSum(List<Metric> metrics)
|
|
{
|
|
double sum = 0;
|
|
foreach (var metric in metrics)
|
|
{
|
|
foreach (ref var metricPoint in metric.GetMetricPoints())
|
|
{
|
|
sum += metricPoint.DoubleValue;
|
|
}
|
|
}
|
|
|
|
return sum;
|
|
}
|
|
|
|
private static void CounterUpdateThread<T>(object obj)
|
|
where T : struct, IComparable
|
|
{
|
|
var arguments = obj as UpdateThreadArguments<T>;
|
|
if (arguments == null)
|
|
{
|
|
throw new Exception("Invalid args");
|
|
}
|
|
|
|
var mre = arguments.MreToBlockUpdateThread;
|
|
var mreToEnsureAllThreadsStart = arguments.MreToEnsureAllThreadsStart;
|
|
var counter = arguments.Counter;
|
|
var valueToUpdate = arguments.DeltaValueUpdatedByEachCall;
|
|
if (Interlocked.Increment(ref arguments.ThreadsStartedCount) == numberOfThreads)
|
|
{
|
|
mreToEnsureAllThreadsStart.Set();
|
|
}
|
|
|
|
// Wait until signalled to start calling update on aggregator
|
|
mre.WaitOne();
|
|
|
|
for (int i = 0; i < numberOfMetricUpdateByEachThread; i++)
|
|
{
|
|
counter.Add(valueToUpdate, new KeyValuePair<string, object>("verb", "GET"));
|
|
}
|
|
}
|
|
|
|
private class UpdateThreadArguments<T>
|
|
where T : struct, IComparable
|
|
{
|
|
public ManualResetEvent MreToBlockUpdateThread;
|
|
public ManualResetEvent MreToEnsureAllThreadsStart;
|
|
public int ThreadsStartedCount;
|
|
public Counter<T> Counter;
|
|
public T DeltaValueUpdatedByEachCall;
|
|
}
|
|
}
|
|
#pragma warning restore SA1000 // KeywordsMustBeSpacedCorrectly
|
|
}
|