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Jest testing best practices in JavaScript and TypeScript v1.0.0

Use this resource to write reliable Jest tests in JavaScript or TypeScript

New

  • 388 downloads
  • 189 likes
  • 151 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install jest-testing-best-practices

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent structures test files and describe blocks, applies targeted mocks (jest.mock, jest.spyOn), and tests async code and React components. You get readable tests that check precise behavior.

Mostly picked by

Updated November 2, 2026

Card for the “Jest testing best practices in JavaScript and TypeScript” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: test structure, mocks and async code
  • SKILL.md: snapshots, React component tests and common matchers

Good fit for

  • Your test suite depends on real network calls
  • You want to test a React component with Jest

Not for

    Tags

    • jest
    • unit tests
    • mocks
    • typescript

    About

    You say

    “Write the Jest tests for the cart service, mocking the payment API.”

    Card for the “Jest testing best practices in JavaScript and TypeScript” skill

    Skill published by github under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to write reliable Jest tests in JavaScript or TypeScript
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md2.2 KB

    Origin and licence

    Listed unmodified

    Author
    github
    Source
    github.com/github/awesome-copilot/tree/0fe6545b950671641b2b14b44eb56678fea6c6b4/skills/javascript-typescript-jest
    Licence
    MIT

    Notice

    « javascript-typescript-jest » (github, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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