Babysitter react-testing-library

React Testing Library patterns, queries, user events, and accessibility testing.

install

source · Clone the upstream repo

git clone https://github.com/a5c-ai/babysitter

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/a5c-ai/babysitter "$T" && mkdir -p ~/.claude/skills && cp -r "$T/library/specializations/web-development/skills/react-testing-library" ~/.claude/skills/a5c-ai-babysitter-react-testing-library && rm -rf "$T"

manifest: library/specializations/web-development/skills/react-testing-library/SKILL.md

React Testing Library Skill

Expert assistance for testing React components.

Capabilities

Write user-centric tests
Use proper queries
Handle async operations
Test accessibility
Mock dependencies

Test Patterns

import { render, screen, waitFor } from '@testing-library/react';
import userEvent from '@testing-library/user-event';

describe('LoginForm', () => {
  it('should submit form with valid data', async () => {
    const onSubmit = vi.fn();
    const user = userEvent.setup();

    render(<LoginForm onSubmit={onSubmit} />);

    await user.type(screen.getByLabelText(/email/i), 'test@example.com');
    await user.type(screen.getByLabelText(/password/i), 'password123');
    await user.click(screen.getByRole('button', { name: /sign in/i }));

    await waitFor(() => {
      expect(onSubmit).toHaveBeenCalledWith({
        email: 'test@example.com',
        password: 'password123',
      });
    });
  });
});

Query Priority

getByRole (accessibility)
getByLabelText (forms)
getByPlaceholderText
getByText
getByTestId (last resort)

Target Processes

react-testing
unit-testing
accessibility-testing