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Youssef1313 and
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Pull Request Overview
This PR introduces OpenTelemetry support to the Microsoft Testing Platform, enabling distributed tracing and metrics collection for test runs. The implementation provides instrumentation capabilities while maintaining compatibility with the platform's netstandard2.0 target framework.
Key changes include:
- Added new
Microsoft.Testing.Extensions.OpenTelemetryextension project with OpenTelemetry integration - Introduced telemetry interfaces and platform services for activity tracking, counters, and histograms
- Updated existing services to accept the new OpenTelemetry service parameter and instrument test execution flows
- Enhanced the Playground sample to demonstrate OpenTelemetry usage with OTLP exporters
Reviewed Changes
Copilot reviewed 40 out of 40 changed files in this pull request and generated 3 comments.
Show a summary per file
| File | Description |
|---|---|
src/Platform/Microsoft.Testing.Platform/Telemetry/TelemetryManager.cs |
Added OpenTelemetry provider support and renamed BuildAsync to BuildTelemetryAsync |
src/Platform/Microsoft.Testing.Platform/Services/TestApplicationResult.cs |
Added OpenTelemetry service integration and test execution instrumentation |
src/Platform/Microsoft.Testing.Extensions.OpenTelemetry/ |
New extension project providing OpenTelemetry wrappers and platform service implementation |
test/UnitTests/ |
Updated test constructors to accommodate new OpenTelemetry service parameter |
src/Platform/Microsoft.Testing.Platform/Hosts/ |
Added activity tracking throughout host execution flows |
samples/Playground/ |
Added OpenTelemetry configuration example with tracing and metrics |
src/Platform/Microsoft.Testing.Platform/ServerMode/JsonRpc/Json/Json.cs
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src/Platform/Microsoft.Testing.Extensions.OpenTelemetry/OpenTelemetryProvider.cs
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src/Platform/Microsoft.Testing.Extensions.OpenTelemetry/OpenTelemetryPlatformService.cs
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Evangelink
commented
Sep 4, 2025
src/Platform/Microsoft.Testing.Platform/ServerMode/JsonRpc/Json/Json.cs
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Youssef1313
reviewed
Sep 4, 2025
src/Platform/Microsoft.Testing.Extensions.OpenTelemetry/OpenTelemetryPlatformService.cs
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Evangelink
commented
Sep 4, 2025
src/Platform/Microsoft.Testing.Platform/Hosts/ServerTestHost.cs
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src/Platform/Microsoft.Testing.Platform/Telemetry/ITelemetryManager.cs
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src/Platform/Microsoft.Testing.Extensions.OpenTelemetry/OpenTelemetryPlatformService.cs
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src/Platform/Microsoft.Testing.Extensions.OpenTelemetry/OpenTelemetryPlatformService.cs
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src/Platform/Microsoft.Testing.Extensions.OpenTelemetry/OpenTelemetryProvider.cs
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src/Platform/Microsoft.Testing.Extensions.OpenTelemetry/OpenTelemetryProvider.cs
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filzrev
reviewed
Sep 4, 2025
src/Platform/Microsoft.Testing.Extensions.OpenTelemetry/OpenTelemetryProvider.cs
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Evangelink
commented
Oct 7, 2025
# Conflicts: # Directory.Packages.props
Youssef1313
reviewed
Oct 21, 2025
Youssef1313
reviewed
Oct 21, 2025
src/Platform/Microsoft.Testing.Platform/Telemetry/Activities.cs
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Youssef1313
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Oct 21, 2025
Youssef1313
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Oct 21, 2025
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It's probably nice if we can have a complete sample, whether it's using Aspire or something else.
# Conflicts: # samples/Playground/Program.cs
Youssef1313
reviewed
Oct 30, 2025
Evangelink
commented
Oct 31, 2025
Youssef1313
reviewed
Oct 31, 2025
# Conflicts: # Directory.Packages.props # test/UnitTests/Microsoft.Testing.Platform.UnitTests/ServerMode/ServerTests.cs
MarcoRossignoli
approved these changes
Dec 12, 2025
MarcoRossignoli
approved these changes
Dec 12, 2025
MarcoRossignoli
approved these changes
Dec 12, 2025
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This PR introduces OpenTelemetry support to the platform, enabling distributed tracing and metrics collection for test runs. The main changes include adding a new extension project for OpenTelemetry integration, updating dependencies and sample usage, and instrumenting the test execution flow to emit telemetry data.
Added new project
Microsoft.Testing.Extensions.OpenTelemetrywith wrappers for activities, counters, and histograms, and a platform service implementation for telemetry instrumentation.Modified
Playground.csprojandProgram.csto demonstrate enabling OpenTelemetry tracing and metrics via the new provider and exporter.View on Aspire: