Cannot find SVG icon via Enzyme

I filed this bug with Material UI, but they seem to think it’s an Enzyme bug. One of the MUI team members there commented that

It’s likely an issue with composing memo(forwardRef()).

Current behavior

Enzyme doesn’t even seem to recognize that the icon is of the type of the icon; that is,

import EditIcon from '@material-ui/icons/Edit';

console.log(mount(<EditIcon />).is(EditIcon));

displays false. As a result, if I have an IconButton that contains <EditIcon/>, Enzyme doesn’t find it.

See https://codesandbox.io/s/fervent-bash-5ys2g

Expected behavior

mount(<ComponentContainingMUIIcon />).find(MUIIcon) should return a wrapper for the icon.

Your environment

API

• shallow
• mount
• render

Version

library	version
enzyme	3.9.0
react	16.8.6
react-dom	16.8.6
react-test-renderer	N/A
adapter (below)	1.13.2

Adapter

• enzyme-adapter-react-16
• enzyme-adapter-react-16.3
• enzyme-adapter-react-16.2
• enzyme-adapter-react-16.1
• enzyme-adapter-react-15
• enzyme-adapter-react-15.4
• enzyme-adapter-react-14
• enzyme-adapter-react-13
• enzyme-adapter-react-helper
• others ( )

[ljharb]

as soon as i have time; hopefully today.

[ljharb]

Perhaps a change in display name, or they changed the number of HOC wrappers on a component? Not really sure, I’m not familiar with material UI.