Migrate xUnit v3 with Microsoft Testing Platform v2

[Copilot]

Migrates test infrastructure from xUnit v3 (MTP v1) to xUnit v3 with Microsoft Testing Platform v2. Updates CLI syntax in workflows to match MTP v2 requirements.

Changes

• Package: xunit.v3 → xunit.v3.mtp-v2 in Directory.Packages.props and test projects
• global.json: Add "test": { "runner": "Microsoft.Testing.Platform" } configuration
• Workflows: Update dotnet test CLI syntax for MTP v2 compatibility
• Cleanup: Remove xunit.runner.visualstudio package (no longer needed with MTP v2)

CLI Syntax Update

MTP v2 requires --project flag instead of positional arguments:

- dotnet test -c Release --no-build ./test/OrchardCore.Tests/OrchardCore.Tests.csproj
+ dotnet test --project ./test/OrchardCore.Tests/OrchardCore.Tests.csproj -c Release --no-build

Updated in: pr_ci.yml, main_ci.yml, mac_unit_test_ci.yml, preview_ci.yml, release_ci.yml

Original prompt

Migrate xUnit v3 with Microsoft Testing Platform v2. Update workflows for new CLI syntax.

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[sebastienros]

@copilot Some packages like xunit.runner.visualstudio could be removed now I believe.

[Copilot]

@copilot Some packages like xunit.runner.visualstudio could be removed now I believe.

Removed xunit.runner.visualstudio from Directory.Packages.props and both test projects in cd79c3c.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• code.jquery.com
  • Triggering command: /home/REDACTED/work/OrchardCore/OrchardCore/test/OrchardCore.Tests/bin/Release/net10.0/OrchardCore.Tests /home/REDACTED/work/OrchardCore/OrchardCore/test/OrchardCore.Tests/bin/Release/net10.0/OrchardCore.Tests --server dotnettestcli --dotnet-test-pipe /tmp/0d02f10824164911af35fa01afae0faf (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

[github-actions]

This pull request has merge conflicts. Please resolve those before requesting a review.

[sebastienros]

@copilot five the better conflicts with main branch

[sebastienros]

@copilot sorry, fix the merge conflicts with main branch

[Copilot]

@copilot five the better conflicts with main branch

I'm unable to resolve merge conflicts directly as I cannot pull branches from GitHub. Could you please resolve the conflicts with main and I can continue with any additional changes needed afterward?