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ML SystemPart 4: InfrastructureChapter 13
CH.13 ~30 min

Frontend Testing

Vitest, JSDOM, and React Router.

VitestRTLReact Router
  • Write unit tests for React components using Vitest and React Testing Library.
  • Implement persistent login using Browser LocalStorage.
  • Configure dynamic routing in a React SPA using React Router.

01 Frontend Testing with Vitest Viz

Definition

JSDOM

A pure-JavaScript implementation of the DOM and HTML standards for use in Node.js environments.

Definition

React Testing Library

A testing utility that focuses on testing components from the user's perspective rather than their internal implementation details.

02 SPA Navigation & LocalStorage

Persistence Strategy

Upon app initialization, useEffect checks LocalStorage for an existing token and restores the user's state, ensuring a seamless experience.

Key Takeaways

  1. 1Vitest and JSDOM enable fast, headless frontend component testing.
  2. 2React Testing Library encourages testing from the user's perspective.
  3. 3LocalStorage and React Router are essential for session persistence and navigation in SPAs.

CH.13

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