Test a Render Prop!

render-prop-centipede.jsx

describe('when <SuperApp /> renders', () => {
  const wrapper = shallow(<SuperApp />)
    .find(Mouse)
    .renderProp('render', { x: 0, y: 0})
    .find(MouseDown)
    .renderProp('render', { down: true });

  it('should render a heading containing the coordinates', () => {
    expect(
      wrapper.equals(
        <h1>The mouse position is (0, 0) and the button is down</h1>
      )
    ).toBe(true);
  });
});