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);
}