vitest — community vitest, supabase-mirror, community, ide skills

v2026.1.28
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빠르고 효율적인 테스트 프레임워크가 필요한 JavaScript 에이전트에게 적합하며, 네이티브 ESM 및 TypeScript를 지원합니다. Vitest fast unit testing framework powered by Vite with Jest-compatible API. Use when writing tests, mocking, configuring coverage, or working with test filtering and fixtures.

greptileai greptileai
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Updated: 3/9/2026

Killer-Skills Review

Decision support comes first. Repository text comes second.

Reference-Only Page Review Score: 7/11

This page remains useful for operators, but Killer-Skills treats it as reference material instead of a primary organic landing page.

Original recommendation layer Concrete use-case guidance Explicit limitations and caution
Review Score
7/11
Quality Score
31
Canonical Locale
en
Detected Body Locale
en

빠르고 효율적인 테스트 프레임워크가 필요한 JavaScript 에이전트에게 적합하며, 네이티브 ESM 및 TypeScript를 지원합니다. Vitest fast unit testing framework powered by Vite with Jest-compatible API. Use when writing tests, mocking, configuring coverage, or working with test filtering and fixtures.

이 스킬을 사용하는 이유

에이전트가 Jest 호환 API, 네이티브 ESM, TypeScript 및 JSX 지원을 활용할 수 있도록 해주어 빠른 HMR와 같은 테스트 업데이트와 Vite 네이티브 테스트 프레임워크의 스마트한 감시 모드를 가능하게 합니다.

최적의 용도

빠르고 효율적인 테스트 프레임워크가 필요한 JavaScript 에이전트에게 적합하며, 네이티브 ESM 및 TypeScript를 지원합니다.

↓ 실행 가능한 사용 사례 for vitest

모듈 그래프를 기반으로 영향을 받은 테스트를 다시 실행하는 것
Jest 테스트套件의 드롭인 교체 구현
Vite의 변환 파이프라인을 사용하여 효율적인 테스트 업데이트를 수행하는 것

! 보안 및 제한 사항

  • Vite 애플리케이션 구성이 필요
  • 네이티브 지원은 ESM, TypeScript, JSX로 제한

Why this page is reference-only

  • - Current locale does not satisfy the locale-governance contract.
  • - The underlying skill quality score is below the review floor.

Source Boundary

The section below is imported from the upstream repository and should be treated as secondary evidence. Use the Killer-Skills review above as the primary layer for fit, risk, and installation decisions.

After The Review

Decide The Next Action Before You Keep Reading Repository Material

Killer-Skills should not stop at opening repository instructions. It should help you decide whether to install this skill, when to cross-check against trusted collections, and when to move into workflow rollout.

Install Path

Start With Installation And Validation

If this skill is worth continuing with, the next step is to confirm the install command, CLI write path, and environment validation.
Trusted Recheck

Cross-Check Against Trusted Picks

If you are still comparing multiple skills or vendors, go back to the trusted collection before amplifying repository noise.
Workflow

Move To Workflow Collections For Team Rollout

When the goal shifts from a single skill to team handoff, approvals, and repeatable execution, move into workflow collections.
Labs Demo

Browser Sandbox Environment

⚡️ Ready to unleash?

Experience this Agent in a zero-setup browser environment powered by WebContainers. No installation required.

Boot Container Sandbox

FAQ & Installation Steps

These questions and steps mirror the structured data on this page for better search understanding.

? Frequently Asked Questions

What is vitest?

빠르고 효율적인 테스트 프레임워크가 필요한 JavaScript 에이전트에게 적합하며, 네이티브 ESM 및 TypeScript를 지원합니다. Vitest fast unit testing framework powered by Vite with Jest-compatible API. Use when writing tests, mocking, configuring coverage, or working with test filtering and fixtures.

How do I install vitest?

Run the command: npx killer-skills add greptileai/supabase-mirror/vitest. It works with Cursor, Windsurf, VS Code, Claude Code, and 19+ other IDEs.

What are the use cases for vitest?

Key use cases include: 모듈 그래프를 기반으로 영향을 받은 테스트를 다시 실행하는 것, Jest 테스트套件의 드롭인 교체 구현, Vite의 변환 파이프라인을 사용하여 효율적인 테스트 업데이트를 수행하는 것.

Which IDEs are compatible with vitest?

This skill is compatible with Cursor, Windsurf, VS Code, Trae, Claude Code, OpenClaw, Aider, Codex, OpenCode, Goose, Cline, Roo Code, Kiro, Augment Code, Continue, GitHub Copilot, Sourcegraph Cody, and Amazon Q Developer. Use the Killer-Skills CLI for universal one-command installation.

Are there any limitations for vitest?

Vite 애플리케이션 구성이 필요. 네이티브 지원은 ESM, TypeScript, JSX로 제한.

↓ How To Install

  1. 1. Open your terminal

    Open the terminal or command line in your project directory.

  2. 2. Run the install command

    Run: npx killer-skills add greptileai/supabase-mirror/vitest. The CLI will automatically detect your IDE or AI agent and configure the skill.

  3. 3. Start using the skill

    The skill is now active. Your AI agent can use vitest immediately in the current project.

! Reference-Only Mode

This page remains useful for installation and reference, but Killer-Skills no longer treats it as a primary indexable landing page. Read the review above before relying on the upstream repository instructions.

Upstream Repository Material

The section below is imported from the upstream repository and should be treated as secondary evidence. Use the Killer-Skills review above as the primary layer for fit, risk, and installation decisions.

Upstream Source

vitest

Install vitest, an AI agent skill for AI agent workflows and automation. Review the use cases, limitations, and setup path before rollout.

SKILL.md
Readonly
Upstream Repository Material
The section below is imported from the upstream repository and should be treated as secondary evidence. Use the Killer-Skills review above as the primary layer for fit, risk, and installation decisions.
Supporting Evidence

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

TopicDescriptionReference
ConfigurationVitest and Vite config integration, defineConfig usagecore-config
CLICommand line interface, commands and optionscore-cli
Test APItest/it function, modifiers like skip, only, concurrentcore-test-api
Describe APIdescribe/suite for grouping tests and nested suitescore-describe
Expect APIAssertions with toBe, toEqual, matchers and asymmetric matcherscore-expect
HooksbeforeEach, afterEach, beforeAll, afterAll, aroundEachcore-hooks

Features

TopicDescriptionReference
MockingMock functions, modules, timers, dates with vi utilitiesfeatures-mocking
SnapshotsSnapshot testing with toMatchSnapshot and inline snapshotsfeatures-snapshots
CoverageCode coverage with V8 or Istanbul providersfeatures-coverage
Test ContextTest fixtures, context.expect, test.extend for custom fixturesfeatures-context
ConcurrencyConcurrent tests, parallel execution, shardingfeatures-concurrency
FilteringFilter tests by name, file patterns, tagsfeatures-filtering

Advanced

TopicDescriptionReference
Vi Utilitiesvi helper: mock, spyOn, fake timers, hoisted, waitForadvanced-vi
EnvironmentsTest environments: node, jsdom, happy-dom, customadvanced-environments
Type TestingType-level testing with expectTypeOf and assertTypeadvanced-type-testing
ProjectsMulti-project workspaces, different configs per projectadvanced-projects

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