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Vitest Testing Patterns

Checked
thebushidocollective·vlatest·testing

Helps with Vitest, testing, patterns as part of testing, debugging, and quality assurance workflows.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add thebushidocollective/han --skill vitest-testing-patterns -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

thebushidocollective

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned thebushidocollective/han at 19caa51d5f.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
19caa51d5f
Manifest
plugins/tools/vitest/skills/vitest-testing-patterns/SKILL.md
Scanned
1 file, 472 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
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About this skill

What it does

This skill provides patterns and best practices for writing effective tests using Vitest, a Jest alternative. It helps ensure code quality through structured testing approaches, focusing on mocking, snapshot testing, and component interaction verification. The skill aims to improve test reliability and maintainability within JavaScript projects.

When to use it

  • Refactoring existing tests: Improve the structure and clarity of your current Vitest suite.
  • Writing new components: Establish a consistent testing pattern from the start for new UI elements.
  • Debugging failing tests: Identify potential issues in test setup or assertions by applying established patterns.
  • Improving code coverage: Ensure comprehensive testing across various component interactions and edge cases.

Key capabilities

  • Mocking strategies for isolating units of code during testing.
  • Snapshot testing techniques to verify UI consistency over time.
  • Component interaction verification methods to ensure proper data flow.
  • Best practices for structuring Vitest test files.

Example prompts

  • "Generate a Vitest test file for this React component, mocking the API call."
  • "Show me how to use snapshot testing with Vitest for this UI element."
  • “How do I mock useState in a Vitest test?”

Tips & gotchas

  • Requires familiarity with JavaScript and React components.
  • Vitest must be installed as a project dependency for the skill to function correctly.