Feature: Update the tests to support the Microsoft Testing Platform and update the Unit Test Mode Detector by glennawatson · Pull Request #1454 · reactiveui/splat · GitHub

This pull request introduces support for the Microsoft Testing Platform (MTP) as a test runner, updates several test dependencies, and ensures the codebase and tests are compatible with the latest tooling. The most important changes are grouped below:

Microsoft Testing Platform (MTP) Integration:

Added configuration and property settings to enable the Microsoft Testing Platform and its code coverage extension in test projects, including a new testconfig.json for parallel execution and coverage settings (src/Directory.Build.props, src/testconfig.json, [1] [2].
Added a global configuration file specifying MTP as the test runner (src/global.json, src/global.jsonR1-R5).

Dependency and Package Updates:

Upgraded key dependencies to their latest versions, including Microsoft.Extensions.DependencyInjection, Microsoft.Extensions.Logging, and NUnit3TestAdapter. Added new packages for MTP support and code coverage (src/Directory.Packages.props, [1] [2].
Improved handling of framework-specific package versions, especially for System.Runtime.Serialization.Formatters, to ensure compatibility across different target frameworks (src/Directory.Packages.props, [1] [2].

Test and Detection Enhancements:

Updated the DefaultModeDetector to recognize MTP assemblies, improving the ability to detect when tests are running under MTP (src/Splat/ModeDetection/DefaultModeDetector.cs, src/Splat/ModeDetection/DefaultModeDetector.csR38).
Added new unit tests to verify that the mode detector correctly identifies the Microsoft Testing Platform as a test runner (src/Splat.Tests/ModeDetection/DefaultModeDetectorTests.cs, src/Splat.Tests/ModeDetection/DefaultModeDetectorTests.csR251-R305).

… the Unit Test Mode Detector

Pull request overview

This pull request adds support for the Microsoft Testing Platform (MTP) as a test runner alongside the existing NUnit framework. The changes include configuration files for MTP, updates to test detection logic, new unit tests, and significant dependency version upgrades.

Adds MTP configuration via testconfig.json and global.json for parallel test execution and code coverage
Updates DefaultModeDetector to recognize MTP assemblies as test runners
Upgrades multiple packages to version 10.0.1 and 18.x versions

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/testconfig.json	Configures MTP parallel execution and code coverage settings with module path filters
src/global.json	Specifies Microsoft Testing Platform as the test runner
src/Splat/ModeDetection/DefaultModeDetector.cs	Adds "MICROSOFT.TESTING.PLATFORM" to the list of recognized test framework markers
src/Splat.Tests/ModeDetection/DefaultModeDetectorTests.cs	Adds two new tests to verify MTP detection functionality
src/Directory.Packages.props	Updates package versions including Microsoft.Extensions packages, test SDK, and introduces framework-specific versioning logic for System.Runtime.Serialization.Formatters
src/Directory.Build.props	Configures MTP support properties and adds testconfig.json to test projects with code coverage package reference

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Codecov Report

❌ Patch coverage is 2.56410% with 38 lines in your changes missing coverage. Please review.
✅ Project coverage is 41.29%. Comparing base (2bc1a8c) to head (78c8223).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...at.Tests/ModeDetection/DefaultModeDetectorTests.cs	0.00%	38 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1454       +/-   ##
===========================================
- Coverage   73.27%   41.29%   -31.99%     
===========================================
  Files         108      149       +41     
  Lines        4345     7822     +3477     
  Branches      617      844      +227     
===========================================
+ Hits         3184     3230       +46     
- Misses        963     4408     +3445     
+ Partials      198      184       -14

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This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.

Update the tests to support the Microsoft Testing Platform and update…

bf6169d

… the Unit Test Mode Detector

glennawatson requested review from ChrisPulman and Copilot December 21, 2025 12:58

Copilot started reviewing on behalf of glennawatson December 21, 2025 12:58 View session

Copilot AI reviewed Dec 21, 2025

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Comment thread src/Splat.Tests/ModeDetection/DefaultModeDetectorTests.cs Outdated

Comment thread src/Splat.Tests/ModeDetection/DefaultModeDetectorTests.cs Outdated

glennawatson and others added 2 commits December 22, 2025 00:08

Update src/Splat.Tests/ModeDetection/DefaultModeDetectorTests.cs

61ad00f

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Update src/Splat.Tests/ModeDetection/DefaultModeDetectorTests.cs

78c8223

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

ChrisPulman approved these changes Dec 21, 2025

View reviewed changes

glennawatson merged commit 06697ac into main Dec 21, 2025
11 of 14 checks passed

glennawatson deleted the glennawatson/mtp branch December 21, 2025 13:57

github-actions Bot locked as resolved and limited conversation to collaborators Jan 5, 2026

Feature: Update the tests to support the Microsoft Testing Platform and update the Unit Test Mode Detector by glennawatson · Pull Request #1454 · reactiveui/splat · GitHub

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Feature: Update the tests to support the Microsoft Testing Platform and update the Unit Test Mode Detector - #1454

Feature: Update the tests to support the Microsoft Testing Platform and update the Unit Test Mode Detector#1454
glennawatson merged 3 commits into
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Feature: Update the tests to support the Microsoft Testing Platform and update the Unit Test Mode Detector by glennawatson · Pull Request #1454 · reactiveui/splat · GitHub

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Feature: Update the tests to support the Microsoft Testing Platform and update the Unit Test Mode Detector - #1454

Feature: Update the tests to support the Microsoft Testing Platform and update the Unit Test Mode Detector#1454glennawatson merged 3 commits intomainreactiveui/splat:mainfrom glennawatson/mtpreactiveui/splat:glennawatson/mtpCopy head branch name to clipboard

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Pull request overview

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Feature: Update the tests to support the Microsoft Testing Platform and update the Unit Test Mode Detector#1454
glennawatson merged 3 commits into
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glennawatson/mtp

codecov Bot commented Dec 21, 2025 •
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