import { async, ComponentFixture, TestBed } from '@angular/core/testing';
import { CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';
import { CacheAdminComponent } from './cache-admin.component';
import { MatExpansionModule } from '@angular/material';
import { HttpClientTestingModule } from '@angular/common/http/testing';
import { AdminService } from '../admin.service';
import { Observable } from 'rxjs/Observable';
import 'rxjs/add/observable/of';
import { CookieService } from 'ngx-cookie-service';
import { BrowserDynamicTestingModule } from '@angular/platform-browser-dynamic/testing';
import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
import { SuccessModalComponent } from '../../modals/success-modal/success-modal.component';


describe('CacheAdminComponent', () => {
  let component: CacheAdminComponent;
  let fixture: ComponentFixture<CacheAdminComponent>;
  let adminService:AdminService;
  
 var stubData1={"data":'{"data":"cachedRegions"}'};
 var stubData2={"data":"stubData2"};

  beforeEach(async(() => {
    
    TestBed.configureTestingModule({
      declarations: [ 
        CacheAdminComponent,
        SuccessModalComponent,
       ],
      schemas: [CUSTOM_ELEMENTS_SCHEMA],
      imports:[
        MatExpansionModule,
         HttpClientTestingModule,
         NgbModule.forRoot()
        ],
      providers:[CookieService,AdminService],  
    })
    TestBed.overrideModule(BrowserDynamicTestingModule,{
      set:{
        entryComponents:[SuccessModalComponent]
      }
    })
    .compileComponents();
  }));

  beforeEach(() => {
    fixture = TestBed.createComponent(CacheAdminComponent);
    component = fixture.componentInstance;
    fixture.detectChanges();
    adminService=TestBed.get(AdminService);
  });

  it('should create', () => {
    expect(component).toBeTruthy();
  });

 
  describe('it should test ngOnInit method',()=>{
    it('should test ngOnInit',()=>{
      let spy=spyOn(adminService,'getCacheRegions').and.returnValue(Observable.of(stubData1));
      component.ngOnInit();
      expect(spy).toHaveBeenCalled();    
    })
  })

  it('it should test showRegionDetails method',()=>{
    let spy=spyOn(adminService,'getCacheRegionDetails').and.returnValue(Observable.of(stubData2));
    component.showRegionDetails("string");
    expect(spy).toHaveBeenCalled();
  })
 
});