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Unit tests with Jest v1.0.0

Use this resource to write and fix Jest unit tests

New

  • 411 downloads
  • 223 likes
  • 104 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install write-jest-unit-tests

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 tests with describe and it, sets up mocks and timers, then checks code coverage. It avoids common anti-patterns and relies on the reference examples provided.

Mostly picked by

Updated November 2, 2026

Card for the “Unit tests with Jest” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
Apache-2.0

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What you get

  • SKILL.md: test structure, mocks and assertions
  • references/EXAMPLES.md: Jest test examples
  • SKILL.md: anti-patterns and common mistakes

Good fit for

  • You want to cover a JavaScript function before refactoring it
  • Snapshots break for no reason and you want them more reliable

Not for

    Tags

    • Jest
    • unit tests
    • mocks
    • coverage

    About

    You say

    “Write the unit tests for this VAT calculation function, with mocks and coverage.”

    Card for the “Unit tests with Jest” skill

    Skill published by personamanagmentlayer under the Apache-2.0 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 and fix Jest unit tests
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE10.9 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • references/EXAMPLES.md14.5 KB
    • SKILL.md4.8 KB

    Origin and licence

    Listed unmodified

    Author
    personamanagmentlayer
    Source
    github.com/personamanagmentlayer/pcl/tree/79ccaa9820486121fa33aaa696ec16fa1607bf02/stdlib/qa/jest-expert
    Licence
    Apache-2.0

    Notice

    « jest-expert » (personamanagmentlayer, Apache-2.0) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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