designing-testslisted
Install: claude install-skill aiskillstore/marketplace
# Designing Tests
## Test Implementation Workflow
Copy this checklist and track progress:
```
Test Implementation Progress:
- [ ] Step 1: Identify what to test
- [ ] Step 2: Select appropriate test type
- [ ] Step 3: Write tests following templates
- [ ] Step 4: Run tests and verify passing
- [ ] Step 5: Check coverage meets targets
- [ ] Step 6: Fix any failing tests
```
## Testing Pyramid
Apply the testing pyramid for balanced coverage:
```
/\
/ \ E2E Tests (10%)
/----\ - Critical user journeys
/ \ - Slow but comprehensive
/--------\ Integration Tests (20%)
/ \ - Component interactions
/------------\ - API contracts
/ \ Unit Tests (70%)
/________________\ - Fast, isolated
- Business logic focus
```
## Framework Selection
### JavaScript/TypeScript
| Type | Recommended | Alternative |
|------|-------------|-------------|
| Unit | Vitest | Jest |
| Integration | Vitest + MSW | Jest + SuperTest |
| E2E | Playwright | Cypress |
| Component | Testing Library | Enzyme |
### Python
| Type | Recommended | Alternative |
|------|-------------|-------------|
| Unit | pytest | unittest |
| Integration | pytest + httpx | pytest + requests |
| E2E | Playwright | Selenium |
| API | pytest + FastAPI TestClient | - |
### Go
| Type | Recommended |
|------|-------------|
| Unit | testing + testify |
| Integration | testing + httptest |
| E2E | testing + chromedp |
## Test Structure Templates