testing

Standardize Jest and Vitest testing for backend and frontend code.

1|Updated Aug 8, 2025
One-click install
npx skills add https://github.com/Intellifill/IntelliFill --skill testing-intellifill
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: testing
Source: https://github.com/Intellifill/IntelliFill/tree/main/.claude/skills/testing
Command: npx skills add https://github.com/Intellifill/IntelliFill --skill testing-intellifill

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill provides a structured approach to testing IntelliFill using Jest for backend services and Vitest for frontend components, ensuring consistent quality across the codebase.

Core Features & Use Cases

  • Backend testing with Jest: Validate business logic, data access, and services in the backend.
  • Frontend testing with Vitest: Validate UI components, hooks, and interactions in the frontend.
  • Mocking and CI readiness: Includes patterns for mocking external dependencies and preparing tests for CI environments.

Quick Start

Start by scaffolding Jest and Vitest configurations, then write tests following the provided templates and best practices.

Frequently Asked Questions about testing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I set up Jest and Vitest configurations for full-stack testing?

To set up full-stack testing, scaffold Jest configurations for backend services and Vitest configurations for frontend components, then apply the provided templates to validate business logic and UI interactions.

What is the best way to mock external dependencies in Vitest and Jest?

The best way to mock external dependencies is to apply the standardized mocking patterns provided for both Jest and Vitest, ensuring external services are isolated during unit and integration tests.

How do I configure testing coverage thresholds for CI integration?

Configure testing coverage thresholds by applying the enforced settings from the testing guidelines, ensuring code quality checks pass automatically during your CI integration pipeline.

Can I use the same testing patterns for both frontend and backend services?

Yes, you can use consistent testing patterns across the stack, applying Vitest for frontend component validation and Jest for backend logic while maintaining unified quality standards through CI.

What types of tests are supported by this Jest and Vitest testing guidance?

This testing guidance supports unit, integration, and component tests, validating everything from individual frontend hooks to complex backend data access and business services.

How do I validate frontend UI components and hooks during testing?

To validate frontend UI components and hooks, use Vitest to simulate user interactions and verify component behavior based on the standardized frontend testing templates.