Function rerender

test/test.js:338–340

(props)

    var WrappedComponent = wrapComponent(ClassComponent);

    const rerender = function(props) {
      return ReactDOM.render(React.createElement(WrappedComponent, props), container);
    };

    it('should render fine when wrapped component renders as null', function() {
      var component = rerender({ renderNull: true });