public void Aprove_ShouldCallSubmissionRepository_Update(int id)
{
//Arrange
var mockSubmissionRepository = new Mock <IRepository <Submission> >();
var fakeSubmission = new Submission();
mockSubmissionRepository.Setup(x => x.GetById(id)).Returns(fakeSubmission);
var mockQuestionService = new Mock <IQuestionUtility>();
var mockDateTimeProvider = new Mock <IDateTimeProvider>();
var mockAuthenticationProvider = new Mock <IAuthenticationProvider>();
var mockUnitOfWork = new Mock <IUnitOfWork>();
var controller = new ModerationService(mockSubmissionRepository.Object,
mockQuestionService.Object,
mockDateTimeProvider.Object,
mockAuthenticationProvider.Object,
mockUnitOfWork.Object
);
//Act
controller.Approve(id);
//Assert
mockSubmissionRepository.Verify(x => x.Update(fakeSubmission), Times.Once);
}