chore(deps): update dependency verify to 30.9.0

[thomhurst]

This PR contains the following updates:

Package	Type	Update	Change
Verify	nuget	minor	30.8.0 -> 30.9.0

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Release Notes

VerifyTests/Verify (Verify)

v30.9.0

Compare Source

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Configuration

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This PR has been generated by Renovate Bot.

[claude]

Claude encountered an error —— View job

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PR Review: Verify Dependency Update

Review Checklist:

• Analyze the dependency change
• Check repository guidelines for testing requirements
• Assess security and performance implications
• Review test coverage considerations
• Provide comprehensive feedback

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[claude]

Claude finished @thomhurst's task —— View job

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PR Review: Verify Dependency Update

Review Checklist:

• Analyze the dependency change
• Check repository guidelines for testing requirements
• Assess security and performance implications
• Review test coverage considerations
• Provide comprehensive feedback

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Summary

This PR updates the Verify package from 30.8.0 to 30.9.0 - a minor version update that appears safe and follows good dependency management practices.

✅ Code Quality & Best Practices

• Central Package Management: Properly uses Directory.Packages.props for centralized version management
• Consistent Versioning: Both Verify (30.9.0) and Verify.NUnit (30.9.0) are kept in sync
• Clean Change: Single line modification with clear intent

✅ Security Considerations

• Minor Version Update: Low risk as this is a minor version bump (30.8.0 → 30.9.0)
• Trusted Source: Verify is a well-established, reputable testing library from VerifyTests
• No Breaking Changes: Minor versions typically maintain backward compatibility

✅ Performance & Compatibility

• Custom Implementation: TUnit uses its own custom VerifySettingsTask implementation rather than direct Verify library usage (found in /TUnit.Core.SourceGenerator.Tests/Verify.cs:9 and /TUnit.PublicAPI/Verify.cs:9)
• Isolated Impact: The dependency update should have minimal performance impact since TUnit implements its own snapshot testing logic
• Backward Compatibility: Minor version updates typically don't introduce breaking changes

✅ Test Coverage Assessment

• Extensive Snapshot Tests: Found 80+ verified snapshot files (*.verified.txt) that validate source generator output and public API surface
• Custom Verify Implementation: TUnit's custom implementation provides:
  • File path scrubbing for cross-platform consistency
  • Line ending normalization
  • Framework-specific file naming
  • Robust error handling with detailed failure messages

🔍 Observations

1. Custom vs Standard: TUnit implements its own verification system instead of using the standard Verify API, which reduces dependency coupling
2. Testing Strategy: The repository follows TUnit's documented approach of using snapshot tests for both source generator output and public API validation
3. Version Alignment: Both Verify packages are properly aligned at version 30.9.0

📋 Recommendations

1. ✅ Safe to Merge: This is a low-risk dependency update
2. Monitor CI: Ensure all existing snapshot tests pass with the updated dependency
3. Accept Snapshots: If any snapshot tests fail due to minor output changes, follow the documented process to accept updated snapshots per /CLAUDE.md:30

Conclusion

This dependency update follows best practices and poses minimal risk. The custom implementation in TUnit provides good isolation from potential breaking changes, and the minor version bump suggests backward compatibility.

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