vitest

Run unit, integration, and type-level tests in Vite-based projects.

4|Updated Jun 10, 2026
One-click install
npx skills add https://github.com/mymx2/foreman --skill vitest-mymx2
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: vitest
Source: https://github.com/mymx2/foreman/tree/main/.qoder/skills.collected/skills/vitest
Command: npx skills add https://github.com/mymx2/foreman --skill vitest-mymx2

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Vitest solves the complexity of configuring and running tests in modern JavaScript and TypeScript projects by providing a zero-config, Vite-native testing environment that is fast and compatible with existing Jest workflows.

Core Features & Use Cases

  • Vite-Native Performance: Leverages Vite's transformation pipeline for near-instant test execution and hot module replacement.
  • Advanced Mocking & Spying: Provides powerful utilities for mocking modules, timers, and global variables to isolate code under test.
  • Use Case: Use this skill to write unit tests for your components, configure code coverage reports for CI/CD pipelines, or perform type-level testing to ensure your TypeScript interfaces are correct.

Quick Start

Use the vitest skill to run all unit tests in the current project and generate a coverage report.

Frequently Asked Questions about vitest

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

FAQPage Schema
How do I run unit tests for a Vite project without complex configuration?

To run unit tests for a Vite project without complex configuration, use a Vite-native testing framework that leverages Vite's transformation pipeline for zero-config setup and near-instant test execution.

Can I use my existing Jest workflows and APIs when migrating to Vite testing?

Yes, you can use existing Jest workflows when migrating to Vite testing because the framework provides Jest compatibility while offering advanced mocking and spying utilities for modules, timers, and globals.

How do I mock external dependencies and global variables during TypeScript testing?

To mock external dependencies during TypeScript testing, use the framework's advanced mocking utilities to isolate code under test by replacing modules, timers, and global variables with controlled test doubles.

Does Vite testing support multi-project workspaces and browser-based test execution?

Yes, Vite testing supports multi-project workspaces and browser-based test execution, allowing you to configure environment-specific test suites and perform type-level testing for TypeScript interfaces.

How do I generate code coverage reports for my JavaScript and TypeScript test suites?

You can generate code coverage reports for JavaScript and TypeScript test suites by running the testing framework with built-in coverage metrics tracking to validate CI/CD pipeline requirements.

What is the best way to perform type-level testing for TypeScript interfaces?

The best way to perform type-level testing for TypeScript interfaces is using a Vite-native testing environment that supports advanced configurations to validate type correctness and ensure interfaces are correct.