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Do not apply ExplicitBucketHistogramConfiguration to non-histograms #3126

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Merged
cijothomas merged 10 commits into from
Mar 31, 2022
Merged

Do not apply ExplicitBucketHistogramConfiguration to non-histograms #3126

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da0d53a
Add failing test demonstrating that histogram config currently applie…
alanwest Mar 31, 2022
daa2915
Do not apply histogram stream config to non-histograms
alanwest Mar 31, 2022
9f2668c
Update changelog
alanwest Mar 31, 2022
aa23358
Merge branch 'main' into alanwest/its-a-bird-its-a-plane-its-not-a-hi…
alanwest Mar 31, 2022
6936c7e
Log warning message
alanwest Mar 31, 2022
646232e
Merge branch 'alanwest/its-a-bird-its-a-plane-its-not-a-histogram' of…
alanwest Mar 31, 2022
221d3f8
Update changelog
alanwest Mar 31, 2022
6760658
Make it nicer
alanwest Mar 31, 2022
1601764
Merge branch 'main' into alanwest/its-a-bird-its-a-plane-its-not-a-hi…
cijothomas Mar 31, 2022
67371e4
Undo deleted line
alanwest Mar 31, 2022
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31 changes: 31 additions & 0 deletions test/OpenTelemetry.Tests/Metrics/MetricViewTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -457,6 +457,37 @@ public void ViewToProduceMultipleStreamsWithDuplicatesFromInstrument()
Assert.Equal("renamedStream2", exportedItems[1].Name);
}

[Fact]
public void ViewWithHistogramConfiguraionIgnoredWhenAppliedToNonHistogram()
{
using var meter = new Meter(Utils.GetCurrentMethodName());
var exportedItems = new List<Metric>();
using var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter.Name)
.AddView("NotAHistogram", new ExplicitBucketHistogramConfiguration() { Name = "ImAHistogram" })
.AddInMemoryExporter(exportedItems)
.Build();

var counter = meter.CreateCounter<long>("NotAHistogram");
counter.Add(10);
meterProvider.ForceFlush(MaxTimeToAllowForFlush);

Assert.Single(exportedItems);
var metric = exportedItems[0];

Assert.Equal("NotAHistogram", metric.Name);

List<MetricPoint> metricPoints = new List<MetricPoint>();
foreach (ref readonly var mp in metric.GetMetricPoints())
{
metricPoints.Add(mp);
}

Assert.Single(metricPoints);
var metricPoint = metricPoints[0];
Assert.Equal(10, metricPoint.GetSumLong());
}

[Fact]
public void ViewToProduceCustomHistogramBound()
{
Expand Down