Use ref prop type

Author: eps1lon

packages/enzyme-adapter-utils/src/createMountWrapper.jsx

@@ -1,5 +1,6 @@
 import React from 'react';
 import PropTypes from 'prop-types';
+import { ref } from 'airbnb-prop-types';
 import RootFinder from './RootFinder';
 
 /* eslint react/forbid-prop-types: 0 */
@@ -89,7 +90,7 @@ export default function createMountWrapper(node, options = {}) {
     props: PropTypes.object.isRequired,
     wrappingComponentProps: PropTypes.object,
     context: PropTypes.object,
-    forwardedRef: PropTypes.oneOfType([PropTypes.func, PropTypes.object]),
+    forwardedRef: ref(),
   };
   WrapperComponent.defaultProps = {
     context: null,