v0.18.3: Enhanced Panic Testing and Build Improvements

Release v0.18.3

🎯 Highlights

This release enhances the AssertPanic testing utility with intelligent type-aware matching capabilities and includes significant build system improvements for better coverage collection and reporting.

✨ Features

Enhanced Panic Testing

• Type-aware panic validation: AssertPanic now provides different matching strategies based on the expected type.
  • nil: Accepts any panic (most common use case).
  • error: Uses errors.Is for error chain matching.
  • string: Performs substring matching for more resilient tests.
  • Recovered: Direct comparison without unwrapping.
  • Other types: Exact equality check with automatic Recovered unwrapping.
• Improved logging: Panic assertions now include clear context in their log messages.
• 100% test coverage: The entire testing.go file now has complete test coverage.

Build System Enhancements

• Enhanced coverage collection: New HTML and text report generation with .tmp/coverage/ directory structure.
• Improved Codecov integration: Better monorepo support with module-specific coverage targets.
• Go 1.25 support: Added as the default version in CI/CD pipelines.

🔧 Improvements

Development Experience

• Enhanced .editorconfig with comprehensive file type support.
• Improved .gitignore with additional patterns for better repository hygiene.
• Reorganised Makefile variable definitions for better maintainability.
• Updated GitHub Actions to latest versions (setup-go v6, setup-node v5).

Code Quality

• Refactored doAssertPanic helpers for cleaner implementation.
• Simplified panic validation logic by removing the report flag.
• Consistent use of the ok := test() pattern throughout.
• Field-aligned test structures for memory efficiency.

⚠️ Breaking Changes

• AssertPanic string matching: String expectations now use substring matching instead of exact equality.

  // Previously would fail, now passes:
  AssertPanic(t, func() { panic("unexpected error occurred") }, "error", "test")

• AssertPanic error matching: Error expectations now use errors.Is semantics for chain matching.

  // Now matches wrapped errors:
  AssertPanic(t, func() { panic(fmt.Errorf("wrapped: %w", io.EOF)) }, io.EOF, "test")

📊 Statistics

• Files changed: 16
• Insertions: 339 lines
• Deletions: 139 lines
• Test coverage: 97.3% overall, 100% for testing.go

🤝 Contributors

• @amery - Alejandro Mery

📦 Dependencies

• Updated actions/setup-go to v6.
• Updated actions/setup-node to v5.

🔗 Links

• Full Changelog
• Documentation

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This release focuses on making panic testing more intuitive and resilient whilst maintaining backward compatibility for most use cases. The enhanced type-aware matching aligns with developer expectations and reduces test brittleness.