zimejin

import { TestBed, tick, fakeAsync } from '@angular/core/testing';
import { UserAsyncComponent } from './user-async.component';
import { UserAsyncService } from './user-async.service';
import { Observable, Observer } from 'rxjs';

describe('User Async Component:', () => {
  beforeEach(async () => {
    TestBed.configureTestingModule({
      declarations: [UserAsyncComponent]
    });