vitest

Run unit tests for Vite projects with a Jest-compatible API.

1|Updated Jul 30, 2023

Search Tags:#typescript #vitest #testing #unit testing #javascript #vite

Ready to run

npx skills add https://github.com/DanielShuguang/tool-box --skill vitest-danielshuguang

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Please help me install this Agent Skill.
Skill: vitest
Source: https://github.com/DanielShuguang/tool-box/tree/main/.trae/skills/vitest
Command: npx skills add https://github.com/DanielShuguang/tool-box --skill vitest-danielshuguang

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides a rapid and efficient way to write and run unit tests for your Vite-powered projects, ensuring code quality and stability.

Core Features & Use Cases

Fast HMR-like Updates: Experience near-instantaneous feedback on test changes.
Jest-Compatible API: Easily migrate existing Jest tests or leverage familiar syntax.
Native ESM, TS, JSX Support: Get started without complex configuration.
Use Case: Quickly write unit tests for your Vue components, ensuring they render correctly and respond to user interactions as expected.

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 unit tests for a Vite application using TypeScript?▼

You can run unit tests for a Vite application using a Vite-native framework that supports TypeScript and JSX out-of-the-box. It provides fast HMR-like updates and requires minimal configuration to start testing your components.

Can I migrate my existing Jest tests to a Vite-native testing framework?▼

Yes, you can migrate existing Jest tests to this Vite-native framework because it offers a Jest-compatible API. This allows you to reuse familiar testing syntax while gaining native ESM, TypeScript support, and faster execution.

Does unit testing with Vitest support native ESM and JSX without extra configuration?▼

Vitest supports native ESM, TypeScript, and JSX out-of-the-box for unit testing. This means you can start writing tests immediately without setting up extra transpilers or complex configuration files.

What is the best way to get fast feedback when changing unit tests in a Vite project?▼

The best way to get fast feedback is using a Vite-native testing framework with smart watch mode, which provides near-instantaneous HMR-like updates on test changes. This ensures a rapid and efficient testing cycle for Vite-powered projects.

How does multi-threaded execution improve JavaScript unit testing performance?▼

Multi-threaded execution improves JavaScript unit testing performance by running tests concurrently rather than sequentially. Combined with a Vite-native architecture, this provides faster test completion and built-in code coverage.