Ionic + Jasmine + Tslint - 屬性'和'

大家都不存在。我正在通過這個boilerplate構建一個Ionic應用程序。現在，我正在爲特定頁面構建測試，並且我正在使用茉莉花來嘲笑提供程序並設置方法的預期行爲。這就是beforeEach（）如何方法看起來像看起來像：Ionic + Jasmine + Tslint - 屬性'和'

beforeEach(() => { 
      mockLoadingController = jasmine.createSpyObj('ModalController', ['create', 'present', 'dismiss']); 
      mockLoadingController.create.and.returnValue(mockLoadingController); 

      mockModalController = jasmine.createSpyObj('LoadingController', ['create', 'present', 
      'onDidDismiss', 'dismiss']); 
      mockModalController.create.and.returnValue(mockModalController); 

      mockGeolocation = jasmine.createSpyObj('Geolocation', ['getCurrentPosition']); 

      mockGeolocation.getCurrentPosition.and.callFake(() => { 
      return {then: () => { }}; 
      }); 
      mockEvents = jasmine.createSpyObj('Events', ['publish', 'subscribe']); 
      TestBed.configureTestingModule({ 
      schemas: [CUSTOM_ELEMENTS_SCHEMA], 
      providers: [ 
       { provide: NavController, useValue: mockNavController }, 
       { provide: LoadingController, useValue: mockLoadingController }, 
       { provide: ModalController, useValue: mockModalController }, 
       { provide: Geolocation, useValue: mockGeolocation }, 
       { provide: Events, useValue: mockEvents }, 
       LocationPage, 
      ], 
      }, 
    ); });

當我定義爲getCurrentPosition方法的承諾回報的問題開始：

mockGeolocation.getCurrentPosition.and.callFake(() => { 
      return {then: () => { }}; 
    });

我使用tslint而測試，它給我以下錯誤

ERROR in [at-loader] ./src/pages/location/location.page.spec.ts:24:40 
    TS2339: Property 'and' does not exist on type '(options?: GeolocationOptions) => Promise<Geoposition>'.

問題是：我如何克服這個問題，使TSLint不再抱怨這個代碼？

來源

2017-04-07 Bruno Siqueira

看來你的問題不在於tslint。你的代碼'mockGeolocation.getCurrentPosition.and.callFake'是錯誤的。我認爲它需要像這樣：'mockGeolocation.create.and.getCurrentPosition ....'。看看其他模擬模式（例如'mockModalController'） – Diullei

問題解決了！我忘了細節，我宣佈變量的方法：

describe('Location Page',() => { 
    let mockLoadingController: any; 
    let mockModalController: any; 
    let mockGeolocation: Geolocation; 
    let mockEvents: Events; 
    beforeEach(() => { 
    //rest of the code here

正如你所看到的，我定義的類型到mockGeolocation變量，我沒有設置其他爲任何。將所有變量設置爲與茉莉花完美配合，並且不會在tslint中產生錯誤。

所以正確的代碼是這樣的：

describe('Location Page',() => { 
    let mockLoadingController: any; 
    let mockModalController: any; 
    let mockGeolocation: any; 
    let mockEvents: any; 
    beforeEach(() => {

來源

2017-04-07 18:24:46

Ionic + Jasmine + Tslint - 屬性'和'

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