advanced rewriremock

import.js

import rewiremock from 'rewiremock';
import sinon from 'sinon';

const  Launch = sinon.stub()

// "require" module name
rewiremock(() => require('./rocket-silo')).with({ 
  Launch: sinon.stub()
});

// "import" module name. And let system to lead rewiremock to the real file
rewiremock(() => import('doom-scheduler')).with({
 theDay: Promise.resolve()
});

// rewiremock async API.
await rewiremock.module('./dooms-day.js');

expect(Launch).toHaveBeenCalled();