Reorganized test suite with consolidated benchmarks and comprehensive
edge case coverage, exceeding 95% minimum coverage requirement.
Changes:
- Created benchmark_test.go with all 52 benchmarks organized by category
(arithmetic, clock, date, diff, format, inspection, parse, snap, unit)
- Removed benchmarks from 9 individual test files for better organization
- Added 6 edge case tests to improve coverage:
* Format() unknown type fallback
* formatLong() empty lang default
* Format.String() unknown value
* isYearPrefix() edge cases
* StartOf()/EndOf() unsupported units
- Added 3 DST transition tests:
* Spring forward (23-hour day)
* Fall back (25-hour day)
* Multiple timezone preservation
Results:
- Test coverage: 97.7% → 99.5% (exceeds 95% target)
- All 52 benchmarks consolidated and verified
- All benchmarks meet performance targets
- No test regressions
Files modified:
- Created: benchmark_test.go (580 lines)
- Modified: 9 test files (removed benchmarks, added tests)
- Add Clock interface with Now() and From(t time.Time) methods
- Implement DefaultClock using time.Now() for production code
- Implement FixedClock with fixed time for deterministic testing
- Add factory functions NewClock() and NewFixedClock(time.Time)
- Comprehensive unit tests demonstrating deterministic test patterns
- Edge case testing (epoch, year 0001, year 9999, nanoseconds)
- Timezone preservation tests
- Example tests showing test usage patterns
- Performance benchmarks for both clock implementations
- 100% test coverage (exceeds 95% requirement)
All acceptance criteria met:
✓ Clock interface defined
✓ DefaultClock implementation using time.Now()
✓ FixedClock implementation with fixed time
✓ NewClock() factory function
✓ NewFixedClock(time.Time) factory function
✓ Unit tests demonstrating deterministic test patterns
✓ Godoc comments
✓ Example test showing test usage pattern
