public void TestIsoRatingNotDefined()
{
var camera = new CameraModel {
ISOLimitAcceptable = 1200, ISOLimitGood = 1000
};
var cameraViewModel = new CameraViewModel(camera);
var isoRating = cameraViewModel.TranslateISORating(0);
Assert.AreEqual(ISORatings.NotDefined, isoRating);
}