testing-framework-helper_skill

Overview

This skill generates comprehensive test suites across unit, integration, and end-to-end testing frameworks. I produce framework-specific tests for Jest, Vitest, Pytest, Playwright, Cypress, and common integration tools, tailored to TypeScript and Python codebases. The goal is readable, maintainable tests that follow testing best practices and ship ready-to-run examples.

How this skill works

I analyze the target component, service, or API surface and generate tests that cover happy paths, edge cases, and failure modes. I include mocks, fixtures, setup/teardown hooks, and assertions using idiomatic patterns for each framework. For integration or E2E flows I scaffold auth, seeds, and environment-aware helpers so tests run reliably in CI.

When to use it

• When you need unit tests for functions, classes, or React components
• When creating integration tests for API endpoints or database interactions
• When writing E2E tests for UI flows with Playwright or Cypress
• When converting manual QA checks into automated suites
• When establishing test patterns and fixtures for a new project

Best practices

• Follow Arrange-Act-Assert and use descriptive test names
• Mock external dependencies and seed test data with fixtures
• Keep tests independent and fast; clean up after each run
• Cover happy and unhappy paths, plus edge cases and validations
• Use parameterized tests for repeated input variations
• Integrate coverage reporting and run tests in CI with environment flags

Example use cases

• Generate Vitest/Jest unit tests for a TypeScript service with mocked database calls
• Create React Testing Library tests for components using React Query and fetch stubs
• Produce Pytest async service tests with fixtures and patched model methods
• Scaffold integration tests for REST endpoints using supertest and a test database
• Write Playwright E2E scenarios for login, listing, creation, and search flows