I'm trying to reference new React 16 refs in my enzyme 3 tests so that I can call .simulate, etc on internal references.

Simplified example:

class MyComponent extends React.Component {
  constructor(props) {
    super(props);
    this.textInput = React.createRef();
  }

  render() {
    return (
      <input ref={this.textInput} />
    );
  }
}

Test:

component = mount(<MyComponent />);
const input = component.instance().textInput.current;
input.simulate('change', { ... });

However I get errors like:

TypeError: component.instance(...).textInput.current.simulate is not a function

This is a simplified example so I'm not looking for alternate ways of finding the input - I'm curious if and how we can use and test using React 16 references?