testing-strategies
Comprehensive testing strategy design covering unit, integration, E2E testing, and TDD practices.
- Implements test pyramid structure with recommended ratios: 70% unit tests, 20% integration, 10% E2E tests
- Provides Given-When-Then patterns for unit testing, mocking strategies for external dependencies, and API endpoint testing examples
- Includes E2E testing guidance using Playwright for complete user flow validation and TDD red-green-refactor cycle methodology
- Covers CI/CD integration, test isolation requirements, and best practices including AAA pattern, deterministic tests, and edge case handling
Testing Strategies
When to use this skill
- New project: define a testing strategy
- Quality issues: bugs happen frequently
- Before refactoring: build a safety net
- CI/CD setup: automated tests
Instructions
Step 1: Understand the Test Pyramid
/\
/E2E\ ← few (slow, expensive)
/______\
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