What is the difference between unit and integration tests in this skill?

Unit tests focus on boundary values and isolated logic, while integration tests verify the full HTTP flow, database interactions, and cross-component wiring.

How does this skill handle database cleanup?

The skill uses function-scoped fixtures and 'try/finally' blocks to ensure every resource created during a test is automatically cleaned up, preventing database bloat.

Does it support mocking external dependencies?

For unit tests, the skill prioritizes dependency injection and mocks to test business logic and hard-to-trigger failure modes without external overhead.

Can it test multi-tenant security?

Yes, it specifically targets critical scenarios like tenant-isolated 404 errors and cross-user access attempts to verify system security.

Backend Test Implementation

Name: Backend Test Implementation
Author: kter

bykter

0•

Security & Testing

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

The Test Implementation skill provides a structured framework for generating reliable, independent tests for backend services. It automates the creation of comprehensive test suites covering happy paths, validation failures, boundary conditions, and complex multi-tenant scenarios. By emphasizing dependency injection for unit tests and realistic service wiring for integration tests, it ensures your API, database, and authentication flows are thoroughly validated while maintaining clean, self-cleaning test environments through standardized fixture management.

Key Features

01Smart data hygiene using UUIDs and prefixes to prevent test environment pollution

02Standardized fixture management with built-in resource cleanup and yield patterns

030 GitHub stars

04Integration testing for full HTTP flows including auth and database layers

05Multi-tenant security verification and cross-user access attempt testing

06Automated unit test generation for boundary value and failure path analysis

Use Cases

01Validating new API endpoints against edge cases and authentication requirements

02Refactoring brittle tests into independent, self-cleaning units to improve CI/CD stability

03Closing testing gaps in an existing backend codebase to reach coverage goals

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add kter/notes test-implementation

For use in Claude.ai and ChatGPT