public async void StudioId_Update_Valid_Reference()
        {
            Mock <ILessonStatusRepository> lessonStatusRepository = new Mock <ILessonStatusRepository>();

            lessonStatusRepository.Setup(x => x.GetStudio(It.IsAny <int>())).Returns(Task.FromResult <Studio>(new Studio()));

            var validator = new ApiLessonStatusRequestModelValidator(lessonStatusRepository.Object);
            await validator.ValidateUpdateAsync(default(int), new ApiLessonStatusRequestModel());

            validator.ShouldNotHaveValidationErrorFor(x => x.StudioId, 1);
        }
        public async void Name_Update_length()
        {
            Mock <ILessonStatusRepository> lessonStatusRepository = new Mock <ILessonStatusRepository>();

            lessonStatusRepository.Setup(x => x.Get(It.IsAny <int>())).Returns(Task.FromResult(new LessonStatus()));

            var validator = new ApiLessonStatusRequestModelValidator(lessonStatusRepository.Object);
            await validator.ValidateUpdateAsync(default(int), new ApiLessonStatusRequestModel());

            validator.ShouldHaveValidationErrorFor(x => x.Name, new string('A', 129));
        }