feat(bd-1a6): Add comprehensive unit tests for errorGrouping module
Added extensive test coverage for error grouping functionality:
- Error categorization edge cases (syntax priority, case insensitivity)
- Advanced normalization tests (timestamps, hex strings, large numbers, UUIDs)
- Category-specific normalizer tests (network, timeout, resource, validation)
- Error group manager edge cases (trimming, merging, severity boundaries)
- Group management edge cases (rapid concurrent errors, mixed types, unique IDs)
- Statistics edge cases (empty manager, all categories)
- Time-based behavior tests (active/inactive transitions, severity downgrades)
Total: 65 passing tests covering error clustering logic, similarity detection,
group merging, and edge cases with different error patterns.
Co-Authored-By: Claude Worker <noreply@anthropic.com>
320a6c2799