Trying to use Jest in React Native

I’m trying to use Jest to test a React Native / Expo project. I’m trying to mock the parts where a file accesses Parse but I keep getting errors like ‘applicationId not found’.

This is basically how I’m mocking Parse:

global.Parse = {
  applicationId: 'testAppId',
  User: {
    currentAsync: jest.fn().mockResolvedValue({
      getUsername: () => 'dummyUser'

…and I seem to need to do this at the top of the test file or else import Parse from 'parse/react-native.js' freaks things out:

jest.mock("parse/react-native.js", () => jest.fn());

…any tips?