# Testing Strategy

Testing begins with the first implementation.

## Unit

Test domain rules and pure services:
- status transitions
- listing requirements
- cost basis
- profit
- valuation strategies
- outlier handling
- condition rules

## API / integration

Test:
- authentication
- authorization
- repositories
- API validation
- Product/provider mapping
- inventory lifecycle
- sales transactions
- public/private DTO boundaries

## Component

Test important Vue components and composables.

## E2E

Core workflows:
1. Login
2. Add Product
3. Find/link provider mappings
4. Add Inventory Item
5. Upload images
6. Calculate pricing
7. Publish listing
8. Search public site
9. Record sale
10. View dashboard

## Accessibility

Run automated accessibility checks and maintain manual keyboard/assistive technology coverage for critical workflows.

## CI

GitHub Actions should run:
- linting
- unit tests
- integration/API tests
- component tests
- E2E tests as appropriate
- accessibility checks
- build validation

Do not weaken or skip tests to obtain a passing build.