vitest

Apply Vitest best practices and performance optimization guidelines to tests.

193|17|Updated Jan 16, 2026
One-click install
npx skills add https://github.com/pproenca/dot-skills --skill vitest-pproenca
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: vitest
Source: https://github.com/pproenca/dot-skills/tree/main/skills/.curated/vitest
Command: npx skills add https://github.com/pproenca/dot-skills --skill vitest-pproenca

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) and assets (resource) components.

What problem does it solve?

This Skill addresses the complexities of writing effective, performant, and maintainable tests using the Vitest testing framework, helping developers avoid common pitfalls and optimize their testing strategies.

Core Features & Use Cases

  • Best Practices Guidance: Provides 44 rules across 8 categories (Async Patterns, Test Setup, Mocking, Performance, etc.) to improve test quality.
  • Performance Optimization: Offers strategies to speed up test execution, crucial for CI/CD pipelines.
  • Use Case: When writing new tests for a React component, consult this Skill to ensure proper async handling, effective mocking of API calls, and efficient DOM assertions, leading to more reliable and faster tests.

Quick Start

Use the vitest skill to refactor the provided test file to adhere to best practices for async testing.

Frequently Asked Questions about vitest

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

FAQPage Schema
What are the best practices for async testing in Vitest?

Vitest best practices for async testing involve following specific rules for async patterns to ensure proper handling of promises and callbacks. This Skill provides 44 rules across 8 categories to improve test quality and reliability.

How do I optimize Vitest performance for CI/CD pipelines?

Vitest performance optimization requires applying specific strategies to speed up test execution, which is crucial for CI/CD pipelines. This Skill offers targeted performance tuning rules to reduce test runtime.

How do I set up mocking strategies in Vitest?

Mocking strategies in Vitest are covered under dedicated best practice rules for effective test setup. This Skill provides guidelines to properly mock API calls and modules, leading to more maintainable tests.

Can I use this Vitest guidance for refactoring existing JavaScript tests?

Yes, you can use these Vitest guidelines to refactor existing JavaScript and TypeScript tests. The Skill applies to writing, debugging, and refactoring tests by enforcing specific rules for improved test quality and execution speed.

What are the most common pitfalls when writing Vitest tests?

Common Vitest testing pitfalls involve improper async handling, inefficient DOM assertions, and suboptimal test setup. This Skill helps developers avoid these issues by providing comprehensive guidelines across critical testing areas.

Why should I follow specific rules for Vitest test setup?

Following specific rules for Vitest test setup ensures improved test quality and faster execution speed. This Skill enforces adherence to 44 categorized rules, helping you avoid common pitfalls and optimize your testing strategies.