@tng-sh/js: TNG JavaScript CLI

High-performance test generation and context analysis for JavaScript/TypeScript, powered by Rust (NAPI-RS and OXC).

Installation

npm install @tng-sh/js --save-dev

Quick Start

1. Initialize

Run the init command to create a tng.config.js configuration file in your project:

npx -p @tng-sh/js tng init

2. Generate Tests

Generate a test for a specific function in a file:

npx -p @tng-sh/js tng -f path/to/file.js -m functionName -t react_component

Supported Types (-t):

• react_component
• express_handler
• graphql_resolver
• nest_js (Service/Controller)
• orm_model
• background_job
• mailer
• utility

3. Interactive Mode

Launch the interactive UI to explore and generate tests visually:

npx -p @tng-sh/js tng i

Features

• ⚡️ Fast AST Analysis: Powered by Rust and the oxc parser for blazing fast static analysis.
• 🖥️ Interactive UI: Rich Go-based terminal UI for managing test generation.
• 🎨 Prettier Integration: Automatically formats generated tests to match your project style.
• 📘 TypeScript Support: First-class support for TypeScript analysis.

Configuration

The tng.config.js file allows you to customize the behavior:

module.exports = {
  // API Configuration
  API_KEY: "your-api-key-here",
  API_URL: "https://app.tng.sh/",

  // Framework Detection
  // Options: express, nextjs, nestjs, generic
  FRAMEWORK: "express",

  // Testing Configuration
  // Options: jest, mocha, vitest
  TEST_FRAMEWORK: "jest",

  // Test Directory
  TEST_DIRECTORY: "tests"
};