content: import React from 'react';
  import {shallow} from 'enzyme';
  import toJson from 'enzyme-to-json';
  import {createStubComponent} from './../_lib/testUtils';
  import Tree from './tree';
  
  describe('<Tree/>', () => {
      let props;
  
      beforeEach(() => {
          props = {
              theme: {
                  panel: 'panelBaseClassName'
              },
              children: 'Foo children',
              NodeComponent: createStubComponent('NodeComponent')
          };
      });
  
      it('should render correctly.', () => {
          const wrapper = shallow(<Tree {...props}/>);
  
          expect(toJson(wrapper)).toMatchSnapshot();
      });
  
      it('should allow the propagation of "className" with the "className" prop.', () => {
          const wrapper = shallow(<Tree {...props} className="fooClassName"/>);
  
          expect(wrapper.prop('className')).toContain('fooClassName');
      });
  
      it('should allow the propagation of additional props to the NodeComponent.', () => {
          const wrapper = shallow(<Tree {...props} foo="bar"/>);
          const node = wrapper.find(props.NodeComponent);
  
          expect(node.prop('foo')).toBe('bar');
      });
  });
  