JS unit test mocking a var in jest

How can I mock an array in Jest? I want my unit test to use the mocked value of an array in JS.

console.log("inside getStatusAsync:" + listOfsubscriptionId); //gives me undefined

'use strict';

const React = require('react-native');

var listOfsubscriptionId;


const moduleReadyPromise = new Promise(function(resolve, reject) {
    const moduleReadySubscription = subscribeToListner(async (result) => {
        listOfsubscriptionId = result.listOfsubscriptionId;
        resolve();
        unsubscribe(moduleReadySubscription);
    });
});


function subscribeToListner(listener) {
    return EventEmitter.addListener(
        NativeModule.Event,
        listener
    );
}


function unsubscribe(subscription) {
    subscription.remove();
};

const ExportedModule = {};
ExportedModule.getModuleReadyPromise = () => {
    return moduleReadyPromise;
};

ExportedModule.setSubscriptionList = (list) => {
    listOfsubscriptionId = list;
};


ExportedModule.getStatusAsync = async(topic) => {
    console.log("inside getStatusAsync:" + listOfsubscriptionId);
    await ExportedModule.getModuleReadyPromise();
    return xxx
};

module.exports = ExportedModule;

Here is the Test File

'use strict';

require('regenerator/runtime');

const listOfsubscriptionIdTest = ["XXX", "YYY"];

jest.setMock('react-native', REACT_MOCK);

jest.dontMock('../Module');
const Module = require('../Module');


describe('Notifications', () => {
    beforeEach(() => {
        // Module.listOfsubscriptionId = listOfsubscriptionIdTest; // DOES NOT WORK
        // Module.listOfsubscriptionId = jest.fn(() => listOfsubscriptionIdTest); // DOES NOT WORK

        // Module.setSubscriptionList(listOfsubscriptionIdTest);  // WORKS
    });

        pit('should be able to call Native getStatusAsync', async() => {
            await Module.getStatusAsync('XXX');
            expect(NATIVE_MODULE_MOCK.getStatusAsync).toBeCalledWith('XXX');
        });
});