Test Gen

    2

    Automated test generation with edge case analysis and framework-native syntax for TS, Python, Go, and Rust.

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    Works with the AI tools you already use

    Claude CodeClaude CodeCursorCursorCodex CLICodex CLIGitHub CopilotGitHub CopilotGemini CLIGemini CLI+20 more

    test-gen

    Example session with this skill installed

    Generate unit tests for src/auth.ts using Vitest. Cover the login function including happy paths, password errors, and empty inputs.

    • Read your context and instructions
    • Compiled the test-gen

    Created src/auth.test.ts (Vitest)

    • test(login): successfully authenticates valid users
    • test(login): throws UnauthorizedError on invalid password
    • test(login): handles empty username strings
    • test(login): mocks database connection failure
      Generated 4 test cases with zero syntax errors.

    Connects securely to your tools. The creator never sees your data.

    What you get

    Automatically detect and adapt to existing Jest, Pytest, or Vitest setups.Generate full test coverage for untested legacy files in a single pass.Create robust mocks for external API calls and database interactions.Ensure 100% coverage of boundary values and common error conditions.

    About this skill

    Comprehensive Automated Unit Testing

    Writing unit tests is often the most time-consuming part of the development cycle. This skill automates the entire process by analyzing your source code and generating high-quality, framework-idiomatic tests. It doesn't just write "happy path" assertions; it deeply analyzes function signatures and logic to identify edge cases, boundary values, and potential error states that you might have missed.

    What it does

    • Smart Framework Detection: Automatically identifies your project's testing stack (Jest, Vitest, Pytest, Go testing, or JUnit) by scanning configuration files like package.json or Cargo.toml.
    • Context-Aware Generation: Parses your TypeScript, JavaScript, Python, Go, or Rust files to extract exports, classes, and functions.
    • Edge Case Analysis: Generates specific test cases for null/undefined inputs, empty strings, maximum boundaries, and async rejections.
    • Zero-Config Mocking: Detects external dependencies and sets up framework-specific mocks for HTTP, DB, and filesystem calls.

    Why use this skill?

    Unlike basic AI prompting, this skill follows a structured multi-step engineering process. It ensures imports are correct, prevents syntax errors, and places files according to project-specific naming conventions (e.g., *.test.ts vs test_*.py). It saves developers hours of boilerplate work while increasing code coverage and reliability without requiring manual intervention.

    How to install

    Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.

    ~30 seconds
    1. 1

      Download the ZIP

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    2. 2

      Unzip into your skills folder

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    3. 3

      Ask your agent to use it

      Restart the agent if it was already running. It picks the skill up automatically - no config needed.

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    Recently published to Agensi

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    Security scanned

    Verified clean 5 months ago

    • Passed all security checks, Safe to install

    Listed5 months ago

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