Enzyme Internal Error: unknown node with tag 2

Current behavior

` Enzyme Internal Error: unknown node with tag 2

  19 | ): ReactWrapper => {
  20 |   const el = (): JSX.Element => component;
> 21 |   return mount(<Provider store={store}>{el()}</Provider>);
     |          ^
  22 | };`

from:

import { shallow, ShallowWrapper, mount, ReactWrapper } from "enzyme";
import React, { ReactElement } from "react";
import { Provider } from "react-redux";
import { MockStoreEnhanced } from "redux-mock-store";

export const shallowWithStore = (
  component: ReactElement,
  store: MockStoreEnhanced
): ShallowWrapper => {
  const context = {
    store
  };
  return shallow(component, { context });
};

export const mountWithStore = (
  component: ReactElement,
  store: MockStoreEnhanced
): ReactWrapper => {
  const el = (): JSX.Element => component;
  return mount(<Provider store={store}>{el()}</Provider>);
};

I’m using react-i18next and suspect it could be to do with the export:

export default withTranslation()(
  withRouter(
    connect(
      mapStateToProps,
      mapDispatchToProps
    )(HomePage)
  )
);

Expected behavior

No error.

API

• shallow
• mount
• render

Version

library	version
enzyme	3.9.0
react	16.8.5
react-dom	16.8.4
react-test-renderer
adapter (below)	1.13.0

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 ( )

[JonathanTyrrell]

Working on the repro test case. I’ll upload when I have it ready.

[ljharb]

I’m not sure what Fetch is (unless you mean fetch) - did this happen because you rendered a Promise?