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vitest

Run Vite-native unit tests with Jest-compatible API and coverage reports.

Updated Mar 8, 2026
Search Tags:#unit tests#typescript#vitest#testing#javascript#coverage#mocking
One-click install
npx skills add https://github.com/xabierlameiro/price-tracker --skill vitest-xabierlameiro
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: vitest
Source: https://github.com/xabierlameiro/price-tracker/tree/main/.agents/skills/vitest
Command: npx skills add https://github.com/xabierlameiro/price-tracker --skill vitest-xabierlameiro

SYSTEM DOCUMENTATION & REQUIREMENTS

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

What problem does it solve?

This Skill provides a fast and efficient way to write and run unit tests for your JavaScript and TypeScript projects, ensuring code quality and catching regressions early.

Core Features & Use Cases

  • Fast Unit Testing: Leverage Vite's speed for near-instantaneous test execution and updates.
  • Jest-Compatible API: Use familiar testing syntax without a steep learning curve.
  • Mocking & Coverage: Easily mock dependencies, track code coverage, and ensure thorough testing.
  • Use Case: When developing a new React hook, use this Skill to write tests that verify its behavior under various conditions, mock its dependencies, and ensure it meets the required code coverage.

Quick Start

Use the vitest skill to run all tests in the project.

Frequently Asked Questions about vitest

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

FAQPage Schema
How do I run fast unit tests for JavaScript and TypeScript projects?▼

Fast unit testing for JavaScript and TypeScript projects requires a Vite-native framework to execute tests near-instantaneously. It leverages Vite's speed to run deterministic tests and catch regressions early in development.

Does this unit testing framework support a Jest-compatible API?▼

Yes, the framework provides a Jest-compatible API for writing unit tests. This allows you to use familiar testing syntax without a steep learning curve while leveraging Vite's speed.

How do I mock modules and timers when writing unit tests?▼

You can mock modules and timers when writing unit tests by using the framework's built-in mocking capabilities. This facilitates writing deterministic tests by isolating dependencies and controlling time-based functions.

What is the best way to generate code coverage reports for Vite projects?▼

Generating code coverage reports for Vite projects is best handled by a Vite-native unit testing framework. It tracks code coverage directly during test execution to ensure thorough testing of your modules.

Do I need Vite to use this JavaScript testing framework?▼

Yes, you need Vite integration for optimal performance. The framework is Vite-native and requires Vite build tools to leverage near-instantaneous test execution and updates effectively.

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