rn-fetch-blob/test/test-firebase.js

import RNTest from './react-native-testkit/'
import React from 'react'
import RNFetchBlob from 'react-native-fetch-blob'
import Timer from 'react-timer-mixin'
import firebase from 'firebase'

import {
  StyleSheet,
  Text,
  View,
  ScrollView,
  CameraRoll,
  Platform,
  Dimensions,
  Image,
} from 'react-native';

const fs = RNFetchBlob.fs
const { Assert, Comparer, Info, prop } = RNTest
const describe = RNTest.config({
  group : 'firebase',
  run : true,
  expand : true,
  timeout : 300000000,
})
const { TEST_SERVER_URL, TEST_SERVER_URL_SSL, DROPBOX_TOKEN, styles } = prop()
const  dirs = RNFetchBlob.fs.dirs

let prefix = ((Platform.OS === 'android') ? 'file://' : '')
let file = RNTest.prop('image')

// Initialize Firebase
var config = {
  apiKey: "AIzaSyCnoNvJu2tYYHe87Sm-FrW7j-G-c0MPWGQ",
  authDomain: "rnfb-test-app.firebaseapp.com",
  databaseURL: "https://rnfb-test-app.firebaseio.com",
  storageBucket: "rnfb-test-app.appspot.com",
};
firebase.initializeApp(config);

describe('firebase login', (report, done) => {

  firebase.auth().signInWithEmailAndPassword('xeiyan@gmail.com', 'rnfbtest1024')
    .catch((err) => {
      console.log('firebase sigin failed', err)
    })
  firebase.auth().onAuthStateChanged((user) => {
    report(<Assert key="login success"
      expect={user !== undefined}
      actual={user}/>,
    <Info key="user content">
      <Text>{JSON.stringify(user)}</Text>
    </Info>)
    done()
  })
})


describe('upload file to firebase', (report, done) => {

  try {
    
    let storage = firebase.storage().ref()
    let task = storage.file(`testdata/firebase-test-${Platform.OS}.png`).put(webFile, metadata)

    task.on('state_change', null, (err) => {

    }, () => {
      report(<Assert key="upload success"
        expect={true}
        actual={true}/>,
      <Info key="uploaded file stat" >
        <Text>{task.snapshot.totalBytes}</Text>
        <Text>{JSON.stringify(task.snapshot.metadata)}</Text>
      </Info>)
    })
  } catch(ex) {
    console.log('firebase polyfill error', ex)
  }

})