← ClaudeAtlas

designing-testslisted

Designs and implements testing strategies for any codebase. Use when adding tests, improving coverage, setting up testing infrastructure, debugging test failures, or when asked about unit tests, integration tests, or E2E testing.
aiskillstore/marketplace · ★ 334 · Testing & QA · score 80
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