Testing a React.js component with `jsdomify` and `mocha`

test.js

import expect from 'unexpected';
import jsdomify from 'jsdomify';

describe('MyComponent', () => {

  let React, TestUtils, getInstance, MyComponent;

  before(() => {
    jsdomify.create();

    React = require('react/addons');
    TestUtils = React.addons.TestUtils;

    MyComponent = require('./MyComponent');

    getInstance = (props = {}) => {
      return TestUtils.renderIntoDocument(
        <MyComponent {...props} />
      );
    };
  });

  after(() => {
    jsdomify.destroy();
  });

  it('should render', () => {
    const instance = getInstance();
    expect(instance, 'to be defined');
  });
  
});