acdlite

// getComponent is a function that returns a promise for a component
// It will not be called until the first mount
function asyncComponent(getComponent) {
  return class AsyncComponent extends React.Component {
    static Component = null;
    state = { Component: AsyncComponent.Component };

    componentWillMount() {
      if (!this.state.Component) {
        getComponent().then(Component => {

ryanflorence

class App extends React.Component {
  render() {
    return (
      <Router>
        {({ location }) => (
          <div>
            <Nav/>
            <Main>
              {redirects.map(redirect => <Redirect {...redirect}/>)}
              {routes.map(route => <Match {...route}/>)}

mirague

import { mountWithIntl } from 'helpers/intl-enzyme-test-helper.js';

const wrapper = mountWithIntl(
  <CustomComponent />
);

expect(wrapper.state('foo')).to.equal('bar');    // OK
expect(wrapper.text()).to.equal('Hello World!'); // OK