src/App.test.js

import { render, screen, waitFor } from '@testing-library/react';
import App from './App';

jest.mock('./utils/storage', () => ({
  loadSessions: jest.fn().mockResolvedValue([]),
  createSession: jest.fn(),
  updateSession: jest.fn(),
  deleteSession: jest.fn(),
}));

test('renders climbing dashboard heading', async () => {
  render(<App />);
  const heading = screen.getByRole('heading', { name: /climbing dashboard/i });
  expect(heading).toBeInTheDocument();
  await waitFor(() =>
    expect(screen.queryByText(/loading shared sessions/i)).not.toBeInTheDocument()
  );
});