public void GetImageResolution_ReturnsCorrectImageResolution()
{
Assert.Equal(ImageResolution.Low, AttributeHelpers.GetImageResolution("100"));
Assert.Equal(ImageResolution.MediumLow, AttributeHelpers.GetImageResolution("150"));
Assert.Equal(ImageResolution.Medium, AttributeHelpers.GetImageResolution("200"));
Assert.Equal(ImageResolution.MediumHigh, AttributeHelpers.GetImageResolution("240"));
Assert.Equal(ImageResolution.High, AttributeHelpers.GetImageResolution("300"));
Assert.Null(AttributeHelpers.GetImageResolution(""));
Assert.Null(AttributeHelpers.GetImageResolution(null));
Assert.Null(AttributeHelpers.GetImageResolution("SOME_RANDOM_STRING"));
}