When should I use unit tests versus integration tests with this skill?

Use unit tests for business logic and boundary values where dependencies can be mocked. Use integration tests for full HTTP flows, authentication, database, and service wiring.

What testing patterns does it use for data hygiene?

It uses UUIDs for cached-content fixtures, prefixes integration test data for easy identification, and ensures every test remains independent of others' side effects.

Can it test security in multi-tenant systems?

Absolutely. The skill is designed to specifically check for cross-user access attempts, tenant-isolated 404s, and unauthorized 401/403 status codes.

Does this skill handle resource cleanup?

Yes, it enforces strict fixture rules using yield statements and try/finally blocks to ensure all test data and resources are properly cleaned up after execution.

Test Implementation

Name: Test Implementation
Author: kter

bykter

0•

Security & Testing

Implements comprehensive unit and integration tests for backend features and API endpoints to ensure code reliability and coverage.

The Test Implementation skill provides a standardized framework for Claude to develop robust testing suites for backend applications. It intelligently distinguishes between unit tests for business logic and integration tests for full-flow verification, including authentication, database interactions, and service wiring. By following best practices for dependency injection, fixture management, and data hygiene, this skill helps developers close testing gaps, validate boundary cases, and ensure production-ready stability for complex API architectures.

Key Features

01Multi-tenant security verification including cross-user access and 403/404 scenarios.

02Automated fixture management with built-in cleanup logic to prevent data pollution.

03Automated unit test generation focusing on boundary values and error paths.

04Standardized test directory structures and backend support modifications.

050 GitHub stars

06Full-flow integration testing for HTTP APIs, databases, and authentication.

Use Cases

01Adding unit tests to new backend features to ensure 100% logic coverage.

02Building integration tests to verify API endpoints against real database and auth layers.

03Closing testing gaps in legacy codebases by identifying and covering missing failure scenarios.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add kter/routine test-implementation

For use in Claude.ai and ChatGPT