@material-ui/core/es/test-utils/findOutermostIntrinsic.js

React components that implement Google's Material Design.

/**
 * like ReactWrapper#getDOMNode() but returns a ReactWrapper
 *
 * @param {import('enzyme').ReactWrapper} reactWrapper
 * @returns {import('enzyme').ReactWrapper} the wrapper for the outermost DOM node
 */
export default function findOutermostIntrinsic(reactWrapper) {
  return reactWrapper.findWhere(n => {
    return n.exists() && typeof n.type() === 'string';
  }).first();
}