File collection-group.spec.ts

src/compat/firestore/collection-group/collection-group.spec.ts:None–None

import { TestBed } from '@angular/core/testing';
import { AngularFireModule } from '@angular/fire/compat';
import { AngularFirestore, AngularFirestoreCollectionGroup , AngularFirestoreModule, Query, QueryGroupFn, USE_EMULATOR } from '@angular/fire/compat/firestore';
import { BehaviorSubject } from 'rxjs';