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vitest-testing

Write Vitest unit and component tests for Vue3 with Vue Test Utils.

Updated Jan 25, 2026
Search Tags:#vitest#mocking#unit-testing#vue3#pinia#component-testing#test-utils
One-click install
npx skills add https://github.com/tridentsof/antigravity-dev-kit --skill vitest-testing-tridentsof
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: vitest-testing
Source: https://github.com/tridentsof/antigravity-dev-kit/tree/main/skills/vitest-testing
Command: npx skills add https://github.com/tridentsof/antigravity-dev-kit --skill vitest-testing-tridentsof

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Vue3 unit and component testing can be slow and brittle without a lightweight, modern test runner; Vitest provides fast feedback for Vue3 projects.

Core Features & Use Cases

  • Unit testing with vitest's describe/it style to verify individual functions and logic.
  • Component testing using Vue Test Utils to mount and assert behavior of Vue components.
  • Composables & mocks testing for Vue 3 composition API, including mocking with vi for API calls.
  • Store testing with Pinia to validate store state and actions in isolation.
  • Use Case: ensure core UI components and utilities behave correctly during frequent refactors.

Quick Start

Install dependencies, then run npm run test to execute the Vitest suite for Vue3 components.

Frequently Asked Questions about vitest-testing

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

FAQPage Schema
How do I set up Vitest for Vue3 component testing?▼

Vue3 component testing with Vitest requires integrating Vue Test Utils to mount components and assert their behavior. You can establish this by configuring the Vitest suite and writing tests that mount Vue3 components to verify UI logic during frequent refactors.

What is the best way to test Pinia store state and actions in isolation?▼

Testing Pinia store state and actions involves using Vitest to validate store logic independently. You can isolate store tests by mounting the Pinia store within your Vitest setup to ensure state modifications and actions execute correctly.

Can I mock API calls when testing Vue3 composables with Vitest?▼

Vue3 composables testing with Vitest supports mocking API calls using the vi utility. You can use vi mocks to simulate API responses, allowing you to verify composition API logic without relying on actual network requests.

Does Vitest work with Vue Test Utils for unit testing Vue3 components?▼

Vitest integrates directly with Vue Test Utils to deliver fast unit and component tests for Vue3 projects. This combination allows developers to mount components and use describe/it style assertions to verify individual functions and component behavior reliably.

Why choose Vitest over other test runners for Vue3 unit testing?▼

Vitest provides a fast and lightweight test runner specifically suited for Vue3 projects, preventing tests from becoming slow and brittle. It delivers rapid feedback during development, making it ideal for ensuring core utilities behave correctly during refactoring.

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