[Exporter.Prometheus] Use snapshot tests for PrometheusSerializer by martincostello · Pull Request #7354 · open-telemetry/opentelemetry-dotnet

martincostello · 2026-06-02T16:21:27Z

Changes

Use Verify snapshots for PrometheusSerializer unit tests instead of brittle text-base Regex matches that do not validate the whole scrape response.

This PR intentionally only changes test code so that the snapshots could be auto-accepted during local development so that whatever is being verified is effectively the same content the previous assertions checked manually (excluding timestamps and span/trace IDs which aren't stable).

Merge requirement checklist

CONTRIBUTING guidelines followed (license requirements, nullable enabled, static analysis, etc.)
Unit tests added/updated
~~Appropriate CHANGELOG.md files updated for non-trivial changes~~
~~Changes in public API reviewed (if applicable)~~

- Emit OpenMetrics scope metadata as a single `otel_scope` metric family with `otel_scope_info` samples instead of repeating metadata for every scope. - Include instrumentation scope metadata on samples using `otel_scope_*` labels, including scope version, schema URL, and prefixed scope attributes. - Drop conflicting scope attributes named `name`, `version`, and `schema_url` to avoid collisions with generated scope labels.

Remove Go theme for .NET.

Add CHANGELOG entries.

Address Copilot review feedback.

Add more test coverage for patch.

Move additions to the end.

- Fix missing handling for post-normalization collisions. - Fix metadata conflict handling being bypassed in some cases.

Fix PR links.

Use canonical values for labels that are `float` or `double` to resolve TODO.

- Ensure `otel_scope_info` is sanitized. - Fix missing collision handling.

# Conflicts: # src/OpenTelemetry.Exporter.Prometheus.AspNetCore/CHANGELOG.md # src/OpenTelemetry.Exporter.Prometheus.HttpListener/CHANGELOG.md # src/OpenTelemetry.Exporter.Prometheus.HttpListener/Internal/PrometheusSerializer.cs

Fix SA1203 warning.

Update PrometheusSerializer so scope-tag collisions with point tags now preserve the scope tag’s raw original key through the final merge, which fixes lexicographic value ordering for cases like `z` vs. `otel_scope_z`.

Remove synthetic OpenMetrics `otel_scope`/`otel_scope_info` metadata family.

Use Verify snapshots for `PrometheusSerializer` unit tests.

codecov · 2026-06-02T16:28:42Z

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.07%. Comparing base (aee11ba) to head (e5e871c).
⚠️ Report is 3 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7354      +/-   ##
==========================================
+ Coverage   90.04%   90.07%   +0.03%     
==========================================
  Files         276      276              
  Lines       14283    14283              
==========================================
+ Hits        12861    12866       +5     
+ Misses       1422     1417       -5

Flag	Coverage Δ
unittests-Project-Experimental	`89.89% <ø> (-0.08%)`	⬇️
unittests-Project-Stable	`89.88% <ø> (-0.08%)`	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.
see 2 files with indirect coverage changes

Add snapshots for `PrometheusCollectionManager` tests too.

Use a stable service name to handle cross-platform differences in the test process' name.

Copilot

Pull request overview

This PR migrates Prometheus exporter unit/integration tests from partial regex-based assertions to Verify snapshot testing, improving coverage of full scrape/serialization outputs while scrubbing unstable values (timestamps, span/trace IDs, SDK version).

Changes:

Replace brittle string/regex assertions with Verify snapshot assertions across PrometheusSerializer-related tests.
Add a shared VerifySettings configuration to normalize/scrub unstable output and standardize snapshot naming/locations.
Add and populate .verified.txt snapshot baselines for a broad set of Prometheus/OpenMetrics serialization scenarios.

Reviewed changes

Copilot reviewed 75 out of 75 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
test/Shared/XunitContainerFixture{T}.cs	Adds IDE0005 suppression around a redundant `using` in shared fixture code.
test/Shared/EnabledOnDockerPlatformTheoryAttribute.cs	Adds IDE0005 suppression around `using Xunit;` in shared attribute helper.
test/Shared/EnabledOnDockerPlatformFactAttribute.cs	Adds IDE0005 suppression around `using Xunit;` in shared attribute helper.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/PromToolCollection.cs	Removes explicit `using Xunit;` (relies on implicit/global imports).
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/PrometheusSerializerTests.cs	Converts many tests to snapshot verification; introduces shared `VerifySettings` and scrubbing regexes.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/PrometheusMetricTests.cs	Removes explicit `using Xunit;` (relies on implicit/global imports).
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/PrometheusIntegrationTests.cs	Removes explicit `using Xunit;` (relies on implicit/global imports).
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/PrometheusHttpListenerTests.cs	Removes explicit `using Xunit;` (relies on implicit/global imports).
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/PrometheusHttpListenerMeterProviderBuilderExtensionsTests.cs	Removes explicit `using Xunit;` (relies on implicit/global imports).
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/PrometheusHeadersParserTests.cs	Removes explicit `using Xunit;` (relies on implicit/global imports).
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/PrometheusCollectionManagerTests.cs	Switches scrape-output assertions to snapshots and stabilizes resource attributes for deterministic `target_info`.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/PrometheusCollection.cs	Removes explicit `using Xunit;` (relies on implicit/global imports).
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/PrometheusAcceptHeaders.cs	Removes explicit `using Xunit;` (relies on implicit/global imports).
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/EventSourceTests.cs	Removes explicit `using Xunit;` (relies on implicit/global imports).
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests.csproj	Adds `Verify.Xunit` and assembly metadata for snapshot directory location.
test/OpenTelemetry.Exporter.Prometheus.AspNetCore.Tests/PrometheusIntegrationTests.cs	Removes explicit `using Xunit;` (relies on implicit/global imports).
test/OpenTelemetry.Exporter.Prometheus.AspNetCore.Tests/PrometheusExporterMiddlewareTests.cs	Removes explicit `using Xunit;` (relies on implicit/global imports).
test/OpenTelemetry.Exporter.Prometheus.AspNetCore.Tests/PrometheusExporterMeterProviderBuilderExtensionsTests.cs	Removes explicit `using Xunit;` (relies on implicit/global imports).
test/OpenTelemetry.Exporter.Prometheus.AspNetCore.Tests/OpenTelemetry.Exporter.Prometheus.AspNetCore.Tests.csproj	Adds `Verify.Xunit` and points to shared snapshots directory (path currently OS-specific).
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.WriteMetricPrefixesScopeAttributesAndDropsConflictingScopeAttributeNames.Net4_6.verified.txt	New snapshot baseline for net46 output variant.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.WriteMetricPrefixesScopeAttributesAndDropsConflictingScopeAttributeNames.DotNet8_0.verified.txt	New snapshot baseline for .NET 8 output variant.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.WriteMetricPrefixesScopeAttributesAndDropsConflictingScopeAttributeNames.DotNet9_0.verified.txt	New snapshot baseline for .NET 9 output variant.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.WriteMetricPrefixesScopeAttributesAndDropsConflictingScopeAttributeNames.DotNet10_0.verified.txt	New snapshot baseline for .NET 10 output variant.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.WriteMetricDropsScopeAttributesWhoseNormalizedNamesConflictWithGeneratedScopeNameAndVersionLabels.verified.txt	New snapshot baseline for scope-attribute conflict behavior.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.WriteMetricDropsScopeAttributesWhoseNormalizedNamesConflictWithGeneratedScopeLabels.verified.txt	New snapshot baseline for generated scope label conflicts.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.WriteMetricConcatenatesPointTagsThatCollideWithScopeLabels_snapshotName=plain_useOpenMetrics=True.verified.txt	New snapshot for point-tag collision behavior (OpenMetrics).
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.WriteMetricConcatenatesPointTagsThatCollideWithScopeLabels_snapshotName=plain_useOpenMetrics=False.verified.txt	New snapshot for point-tag collision behavior (text format).
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.WriteMetricConcatenatesPointTagsThatCollideWithScopeLabels_snapshotName=dots_useOpenMetrics=True.verified.txt	New snapshot for dotted-label collision behavior (OpenMetrics).
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.WriteMetricConcatenatesPointTagsThatCollideWithScopeLabels_snapshotName=dots_useOpenMetrics=False.verified.txt	New snapshot for dotted-label collision behavior (text format).
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.WriteMetricConcatenatesCollidingSanitizedLabelValuesInLexicographicOrder.verified.txt	New snapshot for sanitized value concatenation ordering.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.WriteMetricConcatenatesCollidingLeadingDigitLabelKeys.verified.txt	New snapshot for leading-digit label-key collision behavior.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.WriteMetricConcatenatesCollidingEmptyAndUnderscoreLabelKeys.verified.txt	New snapshot for empty/underscore label-key collision behavior.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.WriteHistogramMetricSerializesStaticTagsWithoutPreSerializedTags.verified.txt	New snapshot for histogram static-tag serialization behavior.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.SumWithScopeVersion.verified.txt	New snapshot for scope version label emission.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.SumWithOpenMetricsFormat.verified.txt	New snapshot for OpenMetrics sum formatting.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.SumNonMonotonicDouble.verified.txt	New snapshot for non-monotonic sum serialization.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.SumLongSerializesBoundaryValues_value=0.verified.txt	New snapshot for long boundary value `0`.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.SumLongSerializesBoundaryValues_value=9223372036854775807.verified.txt	New snapshot for long boundary value `long.MaxValue`.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.SumDoubleInfinities.verified.txt	New snapshot for `+Inf` counter serialization.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.OpenMetricsWritesMetricFamiliesContiguously.verified.txt	New snapshot ensuring OpenMetrics metric family contiguity.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.OpenMetricsDoesNotReserveOtelScopeMetricFamilyNames.verified.txt	New snapshot ensuring otel_scope names are not reserved.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.OpenMetricsDoesNotEmitScopeInfoMetricFamily.verified.txt	New snapshot ensuring scope info family is not emitted.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.DuplicateMetricMetadataIsWrittenOncePerScrape.verified.txt	New snapshot ensuring metadata appears once per scrape.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.MetricMetadataDiscoveredLaterIsWrittenBeforeSamples.verified.txt	New snapshot for late-discovered HELP ordering.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.MetricUnitDiscoveredLaterIsWrittenBeforeSamples.verified.txt	New snapshot for late-discovered UNIT ordering.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.MetricHelpAndUnitDiscoveredTogetherLaterAreBothWrittenBeforeSamples.verified.txt	New snapshot for combined HELP/UNIT ordering behavior.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.ConflictingMetricTypesAreDroppedFromAScrape.verified.txt	New snapshot ensuring conflicting types are dropped.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.HistogramZeroDimension.verified.txt	New snapshot for zero-dimension histogram output.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.HistogramOneDimension.verified.txt	New snapshot for one-dimension histogram output.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.HistogramTwoDimensions.verified.txt	New snapshot for two-dimension histogram output.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.HistogramOneDimensionWithOpenMetricsFormat.verified.txt	New snapshot for OpenMetrics histogram formatting.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.HistogramOneDimensionWithScopeVersion.verified.txt	New snapshot for OpenMetrics histogram + scope version.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.HistogramWithOpenMetricsFormatEmitsLatestBucketExemplar.verified.txt	New snapshot for exemplar selection behavior.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.HistogramWithOpenMetricsFormatFiltersSanitizedReservedExemplarTagNames.verified.txt	New snapshot for filtering reserved exemplar labels.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.HistogramWithOpenMetricsFormatDropsCollidingLeLabelKeys.verified.txt	New snapshot for dropping colliding `le` labels.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.HistogramWithNegativeBucketBoundsOmitsSumAndCountWithOpenMetricsFormat.verified.txt	New snapshot for negative buckets omitting sum/count in OM format.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.HistogramInfinities.verified.txt	New snapshot for histogram `+Inf` sum.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.HistogramNaN.verified.txt	New snapshot for histogram `NaN` sum.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.HistogramExportsCreatedMetric_useOpenMetrics=True.verified.txt	New snapshot for `_created` emission in OpenMetrics.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.HistogramExportsCreatedMetric_useOpenMetrics=False.verified.txt	New snapshot ensuring no `_created` in text format.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.HistogramCreatedMetricSkipsReservedHistogramLabels.verified.txt	New snapshot ensuring reserved histogram labels are skipped for created metric.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.CounterExportsCreatedMetric_useOpenMetrics=True.verified.txt	New snapshot for counter `_created` emission in OpenMetrics.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.CounterExportsCreatedMetric_useOpenMetrics=False.verified.txt	New snapshot ensuring no counter `_created` in text format.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.CounterWithOpenMetricsFormatEmitsLatestExemplar.verified.txt	New snapshot for counter exemplar emission (latest).
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.CounterWithOpenMetricsFormatEmitsExemplarWithoutLabelsWhenOnlyReservedTagNamesAreFiltered.verified.txt	New snapshot for empty exemplar label-set after filtering.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.CounterWithOpenMetricsFormatFiltersSanitizedReservedExemplarTagNames.verified.txt	New snapshot for reserved exemplar label filtering (counter).
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.CounterWithOpenMetricsFormatDropsExemplarLabelsExceedingLimit.verified.txt	New snapshot for dropping overly-long exemplar labels.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.GaugeZeroDimension.verified.txt	New snapshot for basic gauge output.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.GaugeZeroDimensionWithDescription.verified.txt	New snapshot for gauge HELP emission.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.GaugeZeroDimensionWithUnit.verified.txt	New snapshot for gauge UNIT emission.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.GaugeZeroDimensionWithDescriptionAndUnit.verified.txt	New snapshot for gauge HELP+UNIT emission.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.GaugeOneDimension.verified.txt	New snapshot for labeled gauge output.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.GaugeBoolDimension.verified.txt	New snapshot for boolean label value formatting.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.GaugeEmptyDimensionName.verified.txt	New snapshot for empty dimension key normalization.
test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/snapshots/PrometheusSerializer.GaugeDoubleSubnormal.verified.txt	New snapshot for `-Inf/+Inf/NaN` gauge serialization.

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Fix IDE0005 after merge.

Remove `async Task` from tests that don't await.

martincostello added 25 commits May 1, 2026 19:05

[Exporter.Prometheus] Update test cases

db4ca48

Remove Go theme for .NET.

[Exporter.Prometheus] Update CHANGELOGs

50942c7

Add CHANGELOG entries.

[Exporter.Prometheus] Address feedback

60a53b7

Address Copilot review feedback.

Merge branch 'main' into fix-scope-metadata

65db37d

[Exporter.Prometheus] Extend coverage

a51c12a

Add more test coverage for patch.

Merge branch 'main' into fix-scope-metadata

48c6919

Merge branch 'main' into fix-scope-metadata

9402121

Merge branch 'main' into fix-scope-metadata

ab0849c

[Exporter.Prometheus] Update CHANGELOGs

926f714

Move additions to the end.

Merge branch 'main' into fix-scope-metadata

25e7374

Merge branch 'main' into fix-scope-metadata

00ab131

Merge branch 'main' into fix-scope-metadata

c5d2abb

[Exporter.Prometheus] Address feedback

9dfc038

- Fix missing handling for post-normalization collisions. - Fix metadata conflict handling being bypassed in some cases.

[Exporter.Prometheus] Fix CHANGELOGs

a5a99b4

Fix PR links.

Merge branch 'main' into fix-scope-metadata

a9846cd

Merge branch 'main' into fix-scope-metadata

92924ae

[Exporter.Prometheus] Fix-up merge

691f9ce

Use canonical values for labels that are `float` or `double` to resolve TODO.

[Exporter.Prometheus] Address feedback

36bbbe9

- Ensure `otel_scope_info` is sanitized. - Fix missing collision handling.

Merge branch 'main' into fix-scope-metadata

98141c1

# Conflicts: # src/OpenTelemetry.Exporter.Prometheus.AspNetCore/CHANGELOG.md # src/OpenTelemetry.Exporter.Prometheus.HttpListener/CHANGELOG.md # src/OpenTelemetry.Exporter.Prometheus.HttpListener/Internal/PrometheusSerializer.cs

[Exporter.Prometheus] Fix SA1203

44fa775

Fix SA1203 warning.

[Exporter.Prometheus] Address feedback

34ac7ea

Update PrometheusSerializer so scope-tag collisions with point tags now preserve the scope tag’s raw original key through the final merge, which fixes lexicographic value ordering for cases like `z` vs. `otel_scope_z`.

Merge branch 'main' into fix-scope-metadata

0658b03

[Exporter.Prometheus] Address feedback

191f148

Remove synthetic OpenMetrics `otel_scope`/`otel_scope_info` metadata family.

[Exporter.Prometheus] Snapshot tests

cb9605c

Use Verify snapshots for `PrometheusSerializer` unit tests.

github-actions Bot added pkg:OpenTelemetry.Exporter.Prometheus.AspNetCore Issues related to OpenTelemetry.Exporter.Prometheus.AspNetCore NuGet package pkg:OpenTelemetry.Exporter.Prometheus.HttpListener Issues related to OpenTelemetry.Exporter.Prometheus.HttpListener NuGet package labels Jun 2, 2026

[Exporter.Prometheus] Add more snapshots

a8f4d61

Add snapshots for `PrometheusCollectionManager` tests too.

martincostello added this to the Exporter.Prometheus Stable Releases milestone Jun 3, 2026

martincostello added 2 commits June 3, 2026 08:26

[Exporter.Prometheus] Fix snapshots

cc8c90a

Use a stable service name to handle cross-platform differences in the test process' name.

Merge branch 'main' into prometheus-verify-tests

2842649

martincostello marked this pull request as ready for review June 3, 2026 10:53

martincostello requested a review from a team as a code owner June 3, 2026 10:53

Copilot AI review requested due to automatic review settings June 3, 2026 10:53

martincostello enabled auto-merge June 3, 2026 10:53

Copilot started reviewing on behalf of martincostello June 3, 2026 10:53 View session

Copilot AI reviewed Jun 3, 2026

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Kielek mentioned this pull request Jun 3, 2026

[tests] add Xunit namespaces to global usings #7365

Merged

2 tasks

martincostello added 2 commits June 3, 2026 17:05

Merge branch 'main' into prometheus-verify-tests

bd2f85b

[Exporter.Prometheus] Fix build

aba3121

Fix IDE0005 after merge.

martincostello commented Jun 3, 2026

View reviewed changes

Comment thread test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/PrometheusSerializerTests.cs Outdated

martincostello commented Jun 3, 2026

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Comment thread test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/PrometheusSerializerTests.cs Outdated

[Exporter.Prometheus] Address feedback

e5e871c

Remove `async Task` from tests that don't await.

Kielek approved these changes Jun 5, 2026

View reviewed changes

martincostello added this pull request to the merge queue Jun 5, 2026

Merged via the queue into open-telemetry:main with commit 4cb15d5 Jun 5, 2026
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martincostello deleted the prometheus-verify-tests branch June 5, 2026 04:58

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[Exporter.Prometheus] Use snapshot tests for PrometheusSerializer#7354

[Exporter.Prometheus] Use snapshot tests for PrometheusSerializer#7354
martincostello merged 31 commits into
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martincostello:prometheus-verify-tests

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