public void GetOne_Should_ThrowException_IfArgumentIsNull()
 {
     Assert.Throws <ArgumentNullException>(() => _genericServiceNullable.GetOne(null));
 }
        public void GetOne_Should_InvokeGenericRepositoryGetOne_Once()
        {
            var returnValue = _genericService.GetOne(_testId);

            _mockGenericRepository.Verify(x => x.GetOne(_testId, It.IsAny <bool>()), Times.Once);
        }