import { TestBed , getTestBed } from '@angular/core/testing' ; import { HttpTestingController , HttpClientTestingModule } from '@angular/common/http/testing' ; import { FileViewerService } from 'src/app/files/file-viewer.service' ; describe ( 'FileViewerService' , ( ) => { let injector ; let service ; let httpMock ; const testCall = ( url , method , isError = false ) => { const req = httpMock . expectOne ( 'http://localhost:9876' + url ) ; expect ( req . request . method ) . toEqual ( method ) ; if ( isError ) { req . flush ( { alerts : [ { } ] , data : [ ] } , { status : 500 , statusText : '' } ) ; } else { req . flush ( { data : [ ] } ) ; } } ; beforeEach ( ( ) => { TestBed . configureTestingModule ( { imports : [ HttpClientTestingModule ] , providers : [ FileViewerService ] } ) ; injector = getTestBed ( ) ; service = injector . get ( FileViewerService ) ; httpMock = injector . get ( HttpTestingController ) ; } ) ; afterEach ( ( ) => { httpMock . verify ( ) ; } ) ; it ( 'should be created' , ( ) => { expect ( service ) . toBeTruthy ( ) ; } ) ; it ( 'gets attachment info' , ( ) => { service . getAttachmentInfo ( 'asdf' ) . subscribe ( response => { expect ( response . data . length ) . toEqual ( 0 ) ; } ) ; testCall ( 'api/attachments/hash/asdf' , 'GET' ) ; } ) ; it ( 'handles errors when getting all boards' , ( ) => { service . getAttachmentInfo ( 'asdf' ) . subscribe ( ( ) => { } , response => { expect ( response . alerts . length ) . toEqual ( 1 ) ; } ) ; testCall ( 'api/attachments/hash/asdf' , 'GET' , true ) ; } ) ; } ) ;