TestScheduler不起作用(Kotlin + RxJava2 + mockito)

我想写一个unit testing,将validation下面的callInit方法。 但是,我有空指针exception行保存subscribe( 。我的问题是我如何validation在下面的方法中的下一个和onerror条件?

 override fun callInit() { val requestInit = RequestInit(os = "android", osVersion = deviceUtil.osVersion(), appVersion = deviceUtil.apiVersion()) compositeDisposable.add( interactor.getInit(requestInit) .subscribe( { view.hideProgress() this.commercialLink = it.commercialLink view.updateScreen() }, { error -> view.onError(error) } ) ) } 

测试方法:

  @Test fun should_update_commerciallink_AND_updateScreen_when_callInit() { val request = RequestInit("android", "version", "osversion") val responseInit = ResponseInit(false, false, "updatelink", "message", "useragreement", "commerciallink") whenever(deviceUtil.osVersion()).thenReturn("version") whenever(deviceUtil.apiVersion()).thenReturn("apiversion") whenever(interactor.getInit(request)).thenReturn(Observable.just(responseInit)) presenter.callInit() testScheduler.triggerActions() verify(view).hideProgress() verify(view).updateScreen() } 

编辑

 class SplashInteractor(private val initService: InitService, private val schedulerProvider: SchedulerProvider) : SplashContract.Interactor { override fun getInit(requestInit: SplashRequest.Init): Observable { return initService.init(requestInit) .subscribeOn(schedulerProvider.io()) .flatMap(funcErrorCheckAndTransform()) .flatMap(funcVersionControl()) .observeOn(schedulerProvider.ui()) } override fun downloadCommercialVideo(commercialLink: String): Observable { return initService.downloadCommercialLink(commercialLink) .subscribeOn(schedulerProvider.io()) .flatMap(funcDownload(commercialLink)) .observeOn(schedulerProvider.ui()) } } 

主持人测试

  @Before fun setUp() { testScheduler = TestScheduler() interactor = SplashInteractor(initService, TestSchedulerProvider(testScheduler)) presenter = SplashPresenter(contract, interactor, uriWrapper, compositeDisposable, cache, fileUtil, deviceUtil) spyPresenter = Mockito.spy(presenter) } 

whenever有一个陈述中有一个错字:

whenever(deviceUtil.apiVersion()).thenReturn("apiversion")
whenever(deviceUtil.apiVersion()).thenReturn("apiversion") 

你已经指示返回“apiversion”,但实际的request是以另一种方式声明的:

val request = RequestInit(..., ..., "osversion")
val request = RequestInit(..., ..., "osversion") 

这两个字符串是相等的,因此Mockito不能返回您期望的Observable

"osversion"改为"apiversion"