Testing with jest: Invariant Violation: Native module cannot be null

I get this error **only** in testing environment

```bash
yarn run v1.22.4
$ jest App.test.tsx
FAIL __tests__/App.test.tsx
● Test suite failed to run

Invariant Violation: Native module cannot be null.

2 | import FormData from 'react-native/Libraries/Network/FormData';
3 | import { store } from '../../store';
> 4 | import RNFS from 'react-native-fs';
| ^
5 | import { actionCreators } from '../../store/actions';
6 | import InitialLoadingService from '../utility/InitialLoadingService';
7 |

at invariant (node_modules/invariant/invariant.js:40:15)
at new NativeEventEmitter (node_modules/react-native/Libraries/EventEmitter/NativeEventEmitter.js:37:7)
at Object. (node_modules/react-native-fs/FS.common.js:14:31)
at Object. (src/services/api/UserProfileManager.ts:4:1)

Test Suites: 1 failed, 1 total
Tests: 0 total
Snapshots: 0 total
Time: 12.178s
Ran all test suites matching /App.test.tsx/i.
/Users/kasra/Documents/youpendo/youpendo-app-bareworkflow/node_modules/redux-persist/lib/createPersistoid.js:98
writePromise = storage.setItem(storageKey, serialize(stagedState)).catch(onWriteFail);
^

TypeError: Cannot read property 'catch' of undefined
at writeStagedState (/Users/kasra/Documents/youpendo/youpendo-app-bareworkflow/node_modules/redux-persist/lib/createPersistoid.js:98:71)
at Timeout.processNextKey [as _onTimeout] (/Users/kasra/Documents/youpendo/youpendo-app-bareworkflow/node_modules/redux-persist/lib/createPersistoid.js:87:7)
at listOnTimeout (internal/timers.js:531:17)
at processTimers (internal/timers.js:475:7)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
```

mocking did not help:
```javascript
jest.mock('react-native-fs', () => {
return {
readFile: jest.fn(),
};
});

```

adding `react-native-fs` to `transformIgnorePatterns` did not help

env:
```bash
"react-native-fs": "^2.16.6",
System:
OS: macOS 11.0.1
CPU: (4) x64 Intel(R) Core(TM) i5-5257U CPU @ 2.70GHz
Memory: 140.95 MB / 8.00 GB
Shell: 5.8 - /bin/zsh
Binaries:
Node: 12.13.1 - ~/.nvm/versions/node/v12.13.1/bin/node
Yarn: 1.22.4 - ~/Documents/youpendo/youpendo-app-bareworkflow/node_modules/.bin/yarn
npm: 6.12.1 - ~/.nvm/versions/node/v12.13.1/bin/npm
Watchman: 4.9.0 - /usr/local/bin/watchman
Managers:
CocoaPods: 1.9.3 - /usr/local/bin/pod
SDKs:
iOS SDK:
Platforms: iOS 14.3, DriverKit 20.2, macOS 11.1, tvOS 14.3, watchOS 7.2
Android SDK:
API Levels: 28, 29
Build Tools: 28.0.3, 29.0.2
System Images: android-28 | Google APIs Intel x86 Atom, android-29 | Google APIs Intel x86 Atom
Android NDK: Not Found
IDEs:
Android Studio: 3.6 AI-192.7142.36.36.6392135
Xcode: 12.3/12C33 - /usr/bin/xcodebuild
Languages:
Java: 1.8.0_232 - /usr/bin/javac
Python: 2.7.16 - /usr/bin/python
npmPackages:
@react-native-community/cli: ^4.8.0 => 4.13.0
react: 16.13.1 => 16.13.1
react-native: 0.63.3 => 0.63.3
```