Migrate OpenCvSharp.Analyzers.Tests to xunit v3

[shimat]

Summary

• Referenced in the Renovate Dependency Dashboard (Dependency Dashboard #1894): test/OpenCvSharp.Analyzers.Tests was the only test project still on xunit v2, blocking the deprecated Microsoft.CodeAnalysis.CSharp.Analyzer.Testing.XUnit / xunit v2 dependencies from being auto-updated by Renovate.
• Replaced Microsoft.CodeAnalysis.CSharp.Analyzer.Testing.XUnit with the framework-agnostic Microsoft.CodeAnalysis.CSharp.Analyzer.Testing package, and swapped XUnitVerifier for DefaultVerifier in the four analyzer test files.
• Bumped xunit → xunit.v3 (3.2.2) and xunit.runner.visualstudio → 3.1.5, matching the other test projects (OpenCvSharp.Tests, OpenCvSharp.Tests.Windows).

Test plan

• dotnet build succeeds
• dotnet test — all 23 tests pass

Co-Authored-By: Claude Sonnet 5 noreply@anthropic.com

Summary by CodeRabbit

• Tests
  • Updated analyzer test infrastructure to use the newer verifier setup across several test suites.
  • Modernized test project dependencies to align with the latest xUnit and analyzer testing packages.
• Chores
  • Removed obsolete test imports and streamlined test configuration.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: bee76f18-8011-46bf-b297-0c8a82cfff2d

📥 Commits

Reviewing files that changed from the base of the PR and between 0868a40 and 5a38320.

📒 Files selected for processing (5)

• test/OpenCvSharp.Analyzers.Tests/MatPropertyInLoopConditionAnalyzerTests.cs
• test/OpenCvSharp.Analyzers.Tests/OpenCvSharp.Analyzers.Tests.csproj
• test/OpenCvSharp.Analyzers.Tests/RowAtAnalyzerTests.cs
• test/OpenCvSharp.Analyzers.Tests/RowColInLoopBodyAnalyzerTests.cs
• test/OpenCvSharp.Analyzers.Tests/RowColNotDisposedAnalyzerTests.cs

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📝 Walkthrough

Walkthrough

The test project's package references are updated to replace xunit v2 and the XUnit-specific analyzer testing package with xunit.v3, updated xunit.runner.visualstudio, and the base Microsoft.CodeAnalysis.CSharp.Analyzer.Testing package. Four analyzer test files switch their CSharpAnalyzerTest verifier from XUnitVerifier to DefaultVerifier, removing the corresponding using directive.

Changes

xunit v3 migration

Layer / File(s)	Summary
Test project package references test/OpenCvSharp.Analyzers.Tests/OpenCvSharp.Analyzers.Tests.csproj	Removes xunit v2 and the XUnit-specific analyzer testing package; adds xunit.v3, updated xunit.runner.visualstudio, and the base Microsoft.CodeAnalysis.CSharp.Analyzer.Testing package.
Switch verifier to DefaultVerifier test/OpenCvSharp.Analyzers.Tests/MatPropertyInLoopConditionAnalyzerTests.cs, test/OpenCvSharp.Analyzers.Tests/RowAtAnalyzerTests.cs, test/OpenCvSharp.Analyzers.Tests/RowColInLoopBodyAnalyzerTests.cs, test/OpenCvSharp.Analyzers.Tests/RowColNotDisposedAnalyzerTests.cs	Removes the Microsoft.CodeAnalysis.Testing.Verifiers using directive and updates CSharpAnalyzerTest construction in each Verify helper to use DefaultVerifier instead of XUnitVerifier.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Sequence Diagram(s)

Not applicable — this change is a test-infrastructure dependency swap without new control flow or multi-component interaction.

Related PRs: None identified.

Suggested labels: tests, dependencies

Suggested reviewers: shimat

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: migrating the OpenCvSharp.Analyzers.Tests project to xUnit v3.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/analyzers-tests-xunit-v3

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