public async Task DeleteConfirmed_ShouldDeleteConferenceFromDataStoreAndRedirectToIndexView()
{
// Arrange
var conferencesIndexViewModel = A.Fake <IConferencesIndexViewModel>();
var conferencesDetailsViewModel = A.Fake <IConferencesDetailsViewModel>();
var conferenceRepository = A.Fake <IConferenceRepository>();
var sharedRepository = A.Fake <ISharedRepository>();
var testController = new ConferencesController(conferencesIndexViewModel, conferencesDetailsViewModel,
conferenceRepository, sharedRepository);
int id = 1;
// Act
var result = await testController.DeleteConfirmed(id);
// Assert
A.CallTo(() => conferenceRepository.DeleteAsync(id)).MustHaveHappenedOnceExactly();
A.CallTo(() => sharedRepository.SaveChangesAsync()).MustHaveHappenedOnceExactly();
result.ShouldBeOfType <RedirectToActionResult>();
((RedirectToActionResult)result).ActionName.ShouldBe <string>(nameof(testController.Index));
}