Finding an Icon in test fails after 4.7.0

[zoltanbedi]

• The issue is present in the latest release.
• I have searched the issues of this repository and believe that this is not a duplicate.

Current Behavior 😯

Some of my tests started to fail because I use a syntax like this

import React from "react";
import RotateLeftIcon from "@material-ui/icons/RotateLeft";
import Enzyme, { mount } from "enzyme";
import Adapter from "enzyme-adapter-react-16";

import { RotateLeft } from "./RotateLeft";

Enzyme.configure({ adapter: new Adapter() });

it("renders properly", () => {
  const wrapper = mount(<RotateLeft />);
  console.log(wrapper.find(RotateLeftIcon).debug({ verbose: true }));
  expect(wrapper.exists(RotateLeftIcon)).toBeTruthy();
});

Expected Behavior 🤔

I expect that it should still work.

Steps to Reproduce 🕹

This test fails with 4.7.0 but not with 4.6.1
https://codesandbox.io/s/material-demo-7yfry

[oliviertassinari]

We had a similar report on enzymejs/enzyme#2146 (comment).

[zoltanbedi]

Didn't notice the duplicate bug.
I went with this approach #15928 (comment) refactoring my tests with data-attributes. Thanks for the fast response Oliver.