File changes.spec.ts

src/compat/database/list/changes.spec.ts:None–None

import { TestBed } from '@angular/core/testing';
import { AngularFireModule } from '@angular/fire/compat';
import { AngularFireDatabase, AngularFireDatabaseModule, USE_EMULATOR, listChanges } from '@angular/fire/compat/database';
import firebase from 'firebase/compat/app';