prepack/test/react/functional-components/refs2.js

var React = require('react');
// the JSX transform converts to React, so we need to add it back in
this['React'] = React;

function Child(props) {
  return <div ref={props.forwardedRef} />;
}

const WrappedComponent = React.forwardRef((props, ref) => {
  return <Child {...props} forwardedRef={ref} />;
});

function App(props) {
  return (
    <WrappedComponent ref={props.x} />
  );
}

App.getTrials = function(renderer, Root) {
  let results = [];
  var refValue = null;
  renderer.update(<Root x={val => refValue = val} />);
  results.push(['simple render with refs', renderer.toJSON()]);
  results.push(['ref node is of div', refValue.type]);
  return results;
};

if (this.__optimizeReactComponentTree) {
  __optimizeReactComponentTree(App);
}

module.exports = App;