text: import React from 'react';
  import { render } from '@testing-library/react';
  import WaveformControls from './WaveformControls';
  
  test('renders learn react link', () => {
    const { getByText } = render(<WaveformControls />);
    const linkElement = getByText(/learn react/i);
    expect(linkElement).toBeInTheDocument();
  });
  