vitest-testing

Validate Svelte component props, state, and UI interactions with Vitest.

Updated Dec 9, 2025
One-click install
npx skills add https://github.com/gzp79/shine-web-v2 --skill vitest-testing-gzp79
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: vitest-testing
Source: https://github.com/gzp79/shine-web-v2/tree/main/.claude/skills/vitest-testing
Command: npx skills add https://github.com/gzp79/shine-web-v2 --skill vitest-testing-gzp79

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Testing isolated component logic without API calls, ensuring props/state/UI behave correctly.

Core Features & Use Cases

  • Isolated component tests with Vitest + @testing-library/svelte for props, state, and UI logic
  • Quick feedback on component behavior without API interactions
  • Use case: validate component behavior in isolation before integrating with APIs, and switch to playwright-testing for full flows when needed

Quick Start

Run unit tests for components using Vitest to validate props, state, and UI interactions.

Frequently Asked Questions about vitest-testing

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

FAQPage Schema
How do I test Svelte component props and state in isolation?▼

You can test isolated Svelte component behavior using Vitest and @testing-library/svelte. This approach validates props, state, and UI interactions without relying on API integrations, providing fast and deterministic feedback.

Does Vitest work with @testing-library/svelte for component testing?▼

Yes, Vitest works with @testing-library/svelte to run isolated component tests. Together they validate UI logic and interactions while ensuring proper cleanup for deterministic test execution.

How do I validate Svelte component UI interactions without API calls?▼

To validate Svelte component UI interactions without API calls, use Vitest to run isolated unit tests. This ensures props and state behave correctly by focusing solely on component logic.

When should I switch from Vitest unit tests to full flow testing?▼

You should switch from Vitest isolated component tests to playwright-testing when you need to validate full application flows. Vitest handles isolated props and state, while Playwright covers comprehensive integration.

What is isolated component testing for Svelte?▼

Isolated component testing for Svelte is the process of validating individual component logic, including props, state, and UI interactions, without external API dependencies using Vitest and @testing-library/svelte.

Do I need @testing-library/svelte to run Vitest for Svelte?▼

Yes, @testing-library/svelte is required alongside Vitest to run deterministic isolated component tests. It provides the necessary utilities to render components and validate UI interactions with proper cleanup.