public void CanLoadImage() { Logger.Debug("CanLoadImage"); using (var autoSub = new AutoSubstitute()) { var mockFileSystem = new MockFileSystem(); autoSub.Provide <IFileSystem>(mockFileSystem); var resourceAssembly = Assembly.GetAssembly(typeof(ImageLoadingServiceTests)); var filePath = Path.Combine(Faker.System.DirectoryPathWindows(), Faker.System.FileName("jpg")); mockFileSystem.AddFileFromEmbeddedResource(filePath, resourceAssembly, "SonOfPicasso.UI.Tests.Resources.DSC04085.JPG"); var autoResetEvent = new AutoResetEvent(false); IBitmap bitmap = null; var testSchedulerProvider = new TestSchedulerProvider(); autoSub.Provide <ISchedulerProvider>(testSchedulerProvider); var imageLoadingService = autoSub.Resolve <ImageLoadingService>(); imageLoadingService.LoadImageFromPath(filePath).Subscribe(b => { bitmap = b; autoResetEvent.Set(); }); testSchedulerProvider.TaskPool.AdvanceBy(1); autoResetEvent.WaitOne(); bitmap.Should().NotBeNull(); bitmap.Height.Should().BeApproximately(1000.6f, 0.01f); bitmap.Width.Should().BeApproximately(1334.12f, 0.01f); } }