Warning when mounting component with forwardRef

[michal-lipski]

Describe the bug
When mounting component that uses forwardRef I am getting a warning:
Warning: Failed prop type: Invalid prop 'Component' supplied to 'WrapperComponent'.
There is no warning when rendering the component in the browser.

To Reproduce
Component:

export const IconButton = React.forwardRef((props, ref) => {
  return (
    <div onClick={props.onClick} ref={ref}>
      {props.children}
    </div>
  )
})

Code in tests that is giving a warning

mount(<IconButton onClick={onClick}>
      <div className={'my-content'} />
    </IconButton>)

Expected behavior
No warning in console

Version
react: 16.3.1
enzyme: 3.6.0
enzyme-adapter-react-16: 1.5.0
enzyme-adapter-utils: 1.8.0
jest: 23.6.0
jest-enzyme: 6.1.2

[ljharb]

Please fill out the entire issue template - what version of which adapter are you using, and which version of react?

[ljharb]

fwiw, #1817 will fix reporting the name incorrectly, if you set .displayName on IconButton.