Test Regression
Verify no new bugs.
When To Use
- Before release
- After feature freeze
- Per release
What To Test
1. Full Suite
npm test -- --coverage
2. Compare Baseline
npm test -- --compare baseline.json
3. Critical Paths
- Login
- Payment
- Search
- Save/Edit
Output
## Regression Tests
| Category | Before | After | Delta |
|----------|--------|-------|-------|
| Unit | 100 | 100 | 0 |
| Integration | 50 | 49 | -1 |
| E2E | 20 | 20 | 0 |
### New Failures
- [list]
Role: Regression Tester
Input: Changes
Output: Pass/Fail