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Javascript Testing Patterns

Checked
gwhthompson·vlatest·backend

Helps with JavaScript, testing, patterns as part of developing backend services and APIs 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 gwhthompson/grist-mcp-server --skill javascript-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

gwhthompson

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 gwhthompson/grist-mcp-server at d75706c2de.

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

Commit
d75706c2de
Manifest
.claude/skills/javascript-testing-patterns/SKILL.md
Scanned
1 file, 990 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 access to JavaScript testing patterns, enabling the AI agent to generate and understand test code. It facilitates writing unit tests, integration tests, and end-to-end tests for JavaScript applications, improving code quality and reliability. The skill can also help debug existing tests and suggest improvements based on established best practices.

When to use it

  • When needing assistance in writing unit tests for a new JavaScript function or module.
  • To refactor and improve the test coverage of an existing codebase.
  • For generating integration tests that verify interactions between different components of a system.
  • When debugging failing tests and identifying potential root causes.

Key capabilities

  • Generation of unit tests using various testing frameworks (e.g., Jest, Mocha).
  • Application of common JavaScript testing patterns like mocking, stubbing, and test doubles.
  • Analysis of existing test code to identify areas for improvement.
  • Guidance on writing effective assertions and verifying expected outcomes.

Example prompts

  • "Write a unit test for this function: function add(a, b) { return a + b; } using Jest."
  • "How can I mock the fetch API in my integration tests?"
  • "Analyze these failing tests and suggest possible fixes: [paste test code here]"

Tips & gotchas

  • The skill's effectiveness depends on providing clear and concise function or module definitions.
  • Familiarity with JavaScript testing frameworks is helpful for interpreting the generated output and adapting it to specific project needs.