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React Test Builder

React Test Builder

Hariharasudhan

|
19 installs
| (0) | Free
Generate test cases for React components automatically. This extension analyzes your React components and generates comprehensive test cases using Jest and React Testing Library.
Installation
Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.
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React Test Builder

A Visual Studio Code extension that automatically generates test cases for React components using Jest and React Testing Library.

Features

  • Generate test files for React components with a single click
  • Supports both JavaScript and TypeScript React components
  • Creates comprehensive test cases using Jest and React Testing Library
  • Automatically detects component props and generates relevant test cases
  • Integrates with VS Code's testing framework

Requirements

  • Visual Studio Code 1.100.0 or higher
  • React project with Jest and React Testing Library installed

Installation

  1. Open VS Code
  2. Go to the Extensions view (Ctrl+Shift+X / Cmd+Shift+X)
  3. Search for "React Test Builder"
  4. Click Install

Usage

  1. Open a React component file (.jsx, .tsx, .js, or .ts)
  2. Right-click in the editor or use the Command Palette (Ctrl+Shift+P / Cmd+Shift+P)
  3. Select "Generate Test for React Component"
  4. A new test file will be created in the same directory as your component

Generated Test Structure

import { render, screen } from '@testing-library/react';
import '@testing-library/jest-dom';
import { YourComponent } from './YourComponent';

describe('YourComponent', () => {
    it('renders without crashing', () => {
        render(<YourComponent />);
        expect(screen.getByTestId('yourcomponent-container')).toBeInTheDocument();
    });

    it('matches snapshot', () => {
        const { asFragment } = render(<YourComponent />);
        expect(asFragment()).toMatchSnapshot();
    });

    // Example: Test with custom props
    it('renders with a custom name prop', () => {
        render(<YourComponent name="TestName" />);
        expect(screen.getByText(/TestName/i)).toBeInTheDocument();
    });

    it('calls onClick handler when button is clicked', () => {
        const handleClick = jest.fn();
        render(<YourComponent onClick={handleClick} />);
        fireEvent.click(screen.getByRole('button'));
        expect(handleClick).toHaveBeenCalledTimes(1);
    });
});

Extension Settings

This extension contributes the following settings:

  • testgenerator.geminiApiKey: Your Google Gemini API Key for test generation.
  • testgenerator.openAIApiKey: Your OpenAI API Key for test generation. Required for GPT models.
  • testgenerator.anthropicApiKey: Your Anthropic API Key for test generation. Required for Claude models.
  • testgenerator.favoriteAgent: Select your preferred AI model for generating tests.

Known Issues

  • Currently supports basic AI-powered test generation.
  • Complex component patterns may require manual test case adjustments.

Release Notes

0.0.1

Initial release of React Test Builder:

  • AI-powered test file generation.
  • Support for JavaScript and TypeScript React components.
  • Integration with Jest and React Testing Library.
  • Configurable AI agent selection (Gemini, OpenAI GPT, Anthropic Claude).

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

This project is licensed under the MIT License - see the LICENSE file for details.

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