我正在尝试为我的Angular应用程序编写一些测试。我正在Jasmin / Karma / PhantomJS中编写我的测试，并且我一直收到错误，导致我的所有测试失败，这是let duration = composition.duration
let durationInSeconds = CMTimeGetSeconds(duration) * 10
let composition = AVMutableComposition()
let item = AVPlayerItem(asset: composition)
let params = AVMutableAudioMixInputParameters(track: composition.tracks.first! as AVAssetTrack)
let lastSecond = CMTimeRangeMake(CMTimeMakeWithSeconds(durationInSeconds-10, 10), CMTimeMakeWithSeconds(1, 1))
params.setVolumeRamp(fromStartVolume: 1, toEndVolume: 0, timeRange: lastSecond)
let mix = AVMutableAudioMix()
mix.inputParameters = [params]
item.audioMix = mix
// Put the track under the video
do {
try audioTrack.insertTimeRange(CMTimeRangeMake(kCMTimeZero, current), of: backgroundAudio.tracks(withMediaType: AVMediaTypeAudio)[0], at: kCMTimeZero)
} catch _ {
print("Failed to load Audio track")
}
guard let exporter = AVAssetExportSession(asset: composition, presetName: AVAssetExportPresetHighestQuality) else { return }
exporter.audioMix = mix
exporter.outputURL = URL(fileURLWithPath: finalVideoPath)
exporter.outputFileType = AVFileTypeMPEG4
exporter.shouldOptimizeForNetworkUse = true
SessionUtil是一个具有众多公共方法的实用程序类/服务。在我的main.component.ts文件中，我将其注入我的construtor，如此
Error: No provider for SessionUtil!这是我的测试文件（不是全部，只是我声明所有内容并导入我的服务等）
constructor(@Inject(SessionUtil) private sessionUtil: SessionUtil)
当我运行我的测试时，我得到以下错误，并且我的测试都没有运行，describe('MainComponent', () => {
let componentFixture: ComponentFixture<MainComponent>;
let instance: any;
let element: any;
let sessionUtil: SessionUtil;
let spyLocalizationsService;
const firstLanguage = 'en-US';
const secondLanguage = 'de-DE';
const unknownLanguage = 'xx-XX';
beforeEach(async(() => {
spyLocalizationsService = sinon.createStubInstance(LocalizationsService);
spyLocalizationsService.changeLanguage.withArgs(firstLanguage, sinon.match.any, sinon.match.any).callsArg(1);
spyLocalizationsService.changeLanguage.withArgs(secondLanguage, sinon.match.any, sinon.match.any).callsArg(1);
spyLocalizationsService.changeLanguage.withArgs(unknownLanguage, sinon.match.any, sinon.match.any).callsArg(2);
spyLocalizationsService.getSupportedLanguages.returns([firstLanguage, secondLanguage]);
(sinon.stub(spyLocalizationsService, 'currentLanguage') as any).get(() => firstLanguage);
// Allows overriding default providers, directives, pipes
TestBed.configureTestingModule({
imports: [
RouterTestingModule.withRoutes([
// some Paths
]),
TranslateI18NextTestingModule.forRoot(),
AuthTestingModule.forRoot(),
NoopAnimationsModule,
MaterialModule
],
declarations: [
MainComponent,
DummyComponent
],
schemas:
[CUSTOM_ELEMENTS_SCHEMA],
providers:
[{provide: LocalizationsService, useValue: spyLocalizationsService},
{provide: MATERIAL_COMPATIBILITY_MODE, useValue: true}]
}).compileComponents().then(() => {
componentFixture = TestBed.createComponent(MainComponent);
element = componentFixture.nativeElement;
instance = componentFixture.componentInstance; // BannerComponent test instance
sessionUtil = componentFixture.debugElement.injector.get(SessionUtil);
});
}));
const isAuthenticated = () => Promise.resolve({
isAuthenticated: true,
username: 'Max Musterman'
});
describe('on init', () => {
beforeEach(async(() => {
sinon.stub(sessionUtil, 'isAuthenticated').returns(isAuthenticated());
}));
我显然做错了什么。我试图在Uncaught (in promise): Error: No provider for SessionUtil!对象SessionUtil数组中注入TestBed.configureTestingModule，但这给了我很多问题。任何人都可以看到我错误地注射这个吗？
任何建议都将不胜感激！
答案 0 :(得分：0)
{provide: SessionUtil, useValue: sessionUtil}
您需要使用存根
启动sessionUtil