content: jest.unmock('../src/components/App');
  
  import React from 'react';
  import ReactDOM from 'react-dom';
  import TestUtils from 'react-addons-test-utils';
  import App from '../src/components/App';
  
  describe('App stages container', () => {
  
    it('Initialised with stage = 0', () => {
      const appElement = TestUtils.renderIntoDocument(
        <App />
      );  
      expect(appElement.state.stage).toEqual(0);
    });
    it('Changes stage based on given props', () => {
      const appElement = TestUtils.renderIntoDocument(
        <App stage={2} />
      );  
      expect(appElement.state.stage).toEqual(2);
    });
  });
  