Vitest 3.x 测试框架：Vite 驱动的下一代 JavaScript/TypeScript 测试工具

vitest by antfu/skills

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4,300 GitHub Stars

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安装命令

npx skills add https://github.com/antfu/skills --skill vitest

开发开发运维

🇨🇳中文介绍

Vitest 是一个由 Vite 驱动的下一代测试框架。它提供了与 Jest 兼容的 API，并原生支持 ESM、TypeScript 和 JSX。Vitest 与您的 Vite 应用共享相同的配置、转换器、解析器和插件。

主要特性：

Vite 原生：使用 Vite 的转换管道，实现类似 HMR 的快速测试更新
Jest 兼容：可作为大多数 Jest 测试套件的直接替代品
智能监视模式：仅根据模块图重新运行受影响的测试
无需配置，原生支持 ESM、TypeScript、JSX
多线程工作器，支持并行测试执行
通过 V8 或 Istanbul 内置覆盖率报告
快照测试、模拟和间谍工具

此技能基于 Vitest 3.x，生成于 2026-01-28。

核心

主题	描述	参考链接
配置	Vitest 与 Vite 配置集成，defineConfig 用法	core-config
命令行界面	命令行接口，命令和选项	core-cli
测试 API	test/it 函数，skip、only、concurrent 等修饰符	core-test-api

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主题	描述	参考链接
模拟	使用 vi 工具模拟函数、模块、计时器、日期	features-mocking
快照	使用 toMatchSnapshot 和内联快照进行快照测试	features-snapshots
覆盖率	使用 V8 或 Istanbul 提供程序的代码覆盖率	features-coverage
测试上下文	测试夹具，context.expect，test.extend 用于自定义夹具	features-context
并发	并发测试，并行执行，分片	features-concurrency
过滤	按名称、文件模式、标签过滤测试	features-filtering

主题	描述	参考链接
Vi 工具	vi 辅助工具：mock、spyOn、模拟计时器、hoisted、waitFor	advanced-vi
环境	测试环境：node、jsdom、happy-dom、自定义	advanced-environments
类型测试	使用 expectTypeOf 和 assertType 进行类型级别测试	advanced-type-testing
项目	多项目工作区，每个项目不同的配置	advanced-projects

🇺🇸English

Vitest is a next-generation testing framework powered by Vite. It provides a Jest-compatible API with native ESM, TypeScript, and JSX support out of the box. Vitest shares the same config, transformers, resolvers, and plugins with your Vite app.

Key Features:

Vite-native: Uses Vite's transformation pipeline for fast HMR-like test updates
Jest-compatible: Drop-in replacement for most Jest test suites
Smart watch mode: Only reruns affected tests based on module graph
Native ESM, TypeScript, JSX support without configuration
Multi-threaded workers for parallel test execution
Built-in coverage via V8 or Istanbul
Snapshot testing, mocking, and spy utilities

The skill is based on Vitest 3.x, generated at 2026-01-28.

Core

Topic	Description	Reference
Configuration	Vitest and Vite config integration, defineConfig usage	core-config
CLI	Command line interface, commands and options	core-cli
Test API	test/it function, modifiers like skip, only, concurrent	core-test-api
Describe API	describe/suite for grouping tests and nested suites	core-describe
Expect API	Assertions with toBe, toEqual, matchers and asymmetric matchers	core-expect
Hooks	beforeEach, afterEach, beforeAll, afterAll, aroundEach	core-hooks

Features

Topic	Description	Reference
Mocking	Mock functions, modules, timers, dates with vi utilities	features-mocking
Snapshots	Snapshot testing with toMatchSnapshot and inline snapshots	features-snapshots
Coverage	Code coverage with V8 or Istanbul providers	features-coverage
Test Context	Test fixtures, context.expect, test.extend for custom fixtures	features-context
Concurrency	Concurrent tests, parallel execution, sharding	features-concurrency
Filtering	Filter tests by name, file patterns, tags

Advanced

Topic	Description	Reference
Vi Utilities	vi helper: mock, spyOn, fake timers, hoisted, waitFor	advanced-vi
Environments	Test environments: node, jsdom, happy-dom, custom	advanced-environments
Type Testing	Type-level testing with expectTypeOf and assertType	advanced-type-testing
Projects	Multi-project workspaces, different configs per project	advanced-projects

Weekly Installs

8.0K

Repository

antfu/skills

GitHub Stars

3.9K

First Seen

Jan 28, 2026

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