API Testing (Playwright + REST Assured)

Comprehensive API testing skill covering both Playwright TypeScript (request fixture, Supertest, Zod) and Java (REST Assured, AssertJ, JSON Schema Validator). Provides deep domain expertise for the api-tester-specialist agent.

When to Use This Skill

• Create API tests for REST or GraphQL endpoints
• Validate request/response schemas (Zod, JSON Schema)
• Test authentication flows (OAuth2, JWT, API keys, Bearer tokens)
• Verify error handling (400, 401, 403, 404, 409, 422, 500)
• Test pagination, filtering, sorting edge cases
• Validate idempotency for PUT/DELETE operations
• Contract testing between services
• Rate limiting validation

Prerequisites