File collection.spec.ts

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

import { TestBed } from '@angular/core/testing';
import { AngularFireModule } from '@angular/fire/compat';
import { AngularFirestore, AngularFirestoreCollection, AngularFirestoreModule, CollectionReference, QueryFn, USE_EMULATOR } from '@angular/fire/compat/firestore';
import { BehaviorSubject } from 'rxjs';