Test generator

Skill Pratiyush/agent-catalog/skills/skill/test-generator

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Install

npx -y skills add Pratiyush/agent-catalog --skill test-generator

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

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What its author says it does

Copied from the file, not written here

Generate test file stubs and boilerplate from source code analysis. Use when the user asks to create tests, add test coverage, or scaffold test files for existing source code.

The file declares its own license as Apache-2.0. That is the author’s claim about this one file, and it is not the same thing as the license GitHub reports for the repository, which is listed with the other numbers below.

SKILL.md

1.8 KB, as published. Nobody here has run it

Test Generator

When to use this skill

Activate when the user wants to:

Create test files for existing source code
Scaffold test stubs with correct imports and structure
Add test coverage to an untested module

Instructions

Analyze the source file to extract function and class signatures:
```
deno run --allow-read scripts/analyze-source.ts <source-file>
```
Review the JSON output to understand the public API

Generate test stubs:

deno run --allow-read --allow-write scripts/generate-stubs.ts <source-file> --output <test-file> --framework vitest

Supported frameworks: vitest (default), jest, mocha

Fill in the generated test bodies with meaningful assertions
Run the tests to verify the stubs compile and the structure is correct

Output format

The analysis script outputs:

{
  "file": "utils.ts",
  "functions": [
    { "name": "formatDate", "params": ["date: Date", "locale?: string"], "returnType": "string", "async": false, "exported": true }
  ],
  "classes": [
    { "name": "UserService", "methods": ["getById", "create", "delete"], "exported": true }
  ]
}

Gotchas

Deno 2.0+ is required — these scripts do not run under Node.js
Analysis uses regex-based parsing, not a full TypeScript compiler — some edge cases may be missed
Generated tests are stubs with placeholder assertions (expect(...).toBeDefined()) — fill in real logic
For framework-specific patterns (mocking, setup/teardown), read references/TESTING-PATTERNS.md