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Vitest Testing Patterns

Checked
erichowens·vlatest·testing·MIT

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 curiositech/some_claude_skills --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

erichowens

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 erichowens/some_claude_skills at 6713fc7a64.

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

Commit
6713fc7a64
Manifest
.claude/skills/vitest-testing-patterns/SKILL.md
Scanned
2 files, 381 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.
What each check looks for →

About this skill

The vitest-testing-patterns skill provides AI agents with structured approaches to writing efficient unit tests using Vitest. It guides the generation of test cases that cover edge cases, mocking dependencies, and ensuring fast execution cycles for modern JavaScript projects.

When to use it

  • You need to generate comprehensive unit tests for a new React or Vue component quickly.
  • Your team requires a standardized testing setup to ensure consistency across multiple developers.
  • You are refactoring legacy code and need automated test coverage to prevent regressions.
  • You want to optimize build times by leveraging Vitest's parallel execution features.

Key capabilities

  • Generates Vitest configuration files tailored to specific project structures.
  • Creates test suites that isolate components by mocking external dependencies like APIs or databases.
  • Produces assertions for edge cases, null values, and error handling scenarios.
  • Outputs code compatible with modern JavaScript runtimes including Node.js and browsers.

Example prompts

"Create a Vitest test suite for my UserAuth component that mocks the backend login API." "Generate a configuration file for Vitest to run in parallel across my monorepo structure." "Write unit tests for this utility function using Vitest, ensuring coverage for empty arrays and invalid inputs."

Tips & gotchas

Ensure your project has Vitest installed before requesting test generation to avoid dependency errors. Focus on providing clear component interfaces or function signatures to help the agent create accurate mocks.