69 lines
3.0 KiB
C#
69 lines
3.0 KiB
C#
// <copyright file="InMemoryExporterTests.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.Collections.Generic;
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using System.Diagnostics.Metrics;
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using OpenTelemetry.Tests;
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using Xunit;
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namespace OpenTelemetry.Metrics.Tests
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{
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public class InMemoryExporterTests
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{
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[Fact(Skip = "To be run after https://github.com/open-telemetry/opentelemetry-dotnet/issues/2361 is fixed")]
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public void InMemoryExporterShouldDeepCopyMetricPoints()
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{
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var exportedItems = new List<Metric>();
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using var meter = new Meter(Utils.GetCurrentMethodName());
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using var meterProvider = Sdk.CreateMeterProviderBuilder()
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.AddMeter(meter.Name)
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.AddInMemoryExporter(exportedItems, metricReaderOptions =>
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{
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metricReaderOptions.TemporalityPreference = MetricReaderTemporalityPreference.Delta;
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})
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.Build();
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var counter = meter.CreateCounter<long>("meter");
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// Emit 10 for the MetricPoint with a single key-vaue pair: ("tag1", "value1")
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counter.Add(10, new KeyValuePair<string, object>("tag1", "value1"));
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meterProvider.ForceFlush();
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var metric = exportedItems[0]; // Only one Metric object is added to the collection at this point
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var metricPointsEnumerator = metric.GetMetricPoints().GetEnumerator();
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Assert.True(metricPointsEnumerator.MoveNext()); // One MetricPoint is emitted for the Metric
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ref readonly var metricPointForFirstExport = ref metricPointsEnumerator.Current;
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Assert.Equal(10, metricPointForFirstExport.GetSumLong());
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// Emit 25 for the MetricPoint with a single key-vaue pair: ("tag1", "value1")
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counter.Add(25, new KeyValuePair<string, object>("tag1", "value1"));
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meterProvider.ForceFlush();
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metric = exportedItems[1]; // Second Metric object is added to the collection at this point
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metricPointsEnumerator = metric.GetMetricPoints().GetEnumerator();
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Assert.True(metricPointsEnumerator.MoveNext()); // One MetricPoint is emitted for the Metric
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var metricPointForSecondExport = metricPointsEnumerator.Current;
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Assert.Equal(25, metricPointForSecondExport.GetSumLong());
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// MetricPoint.LongValue for the first exporter metric should still be 10
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Assert.Equal(10, metricPointForFirstExport.GetSumLong());
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}
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}
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}
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