flaky-tests

# Flaky Test Quick Reference

## Diagnosis Commands

```bash
# Burn-in: expose timing issues
npx playwright test tests/checkout.spec.ts --repeat-each=10

# Isolation: expose state leaks
npx playwright test tests/checkout.spec.ts --grep "adds item" --workers=1

# Full trace: capture everything
npx playwright test tests/checkout.spec.ts --trace=on --retries=0

# Parallel stress: expose race conditions
npx playwright test --fully-parallel --workers=4 --repeat-each=5
```

## Four Categories

| Categ