How to use nock in order to mock Firebase/Firestore in NodeJS?

I have a REST API which written in NodeJS. The REST API gets a file and information and then uploads the file to the drive and stores the information inside my Firebase/Firestore DB. I'm trying to write tests in order to test my REST API, so I need to mock Firestore. I already mock the google-drive using nock by tracking the HTTPS requests that are made by googleapis. Now I'm trying to do the same thing with Firestore.

I tried different methods like, for example, for authentication I tried (based on the docs):

nock('https://firestore.googleapis.com/$discovery/rest')
.persist()
.post('')
.reply(200, { 'access_token': 'abc', 'refresh_token': '123', 'expires_in': 10 })

But nock does not follow the requests. How do I use nock to track the following code? Does firebase package actually makes requests to the API?

const firebase = require("firebase");

// Required for side-effects
require("firebase/firestore");

// First code - authenatiocation
firebase.initializeApp(firebaseConfig);
db = firebase.firestore();

// ...
// Second code - Get data from DB
const snapshot = await db.collection(collection).orderBy("timestamp", "desc").get();

// ...
// Third code - upload new report
const response = await db.collection(collection).doc(document_id).set(data);

If it's not possible with nock, then it can be achieved?

from How to use nock in order to mock Firebase/Firestore in NodeJS?