public void GetSide_ReturnsCorrectSide() { Assert.Equal(Side.Front, AttributeHelpers.GetSide("FRONT")); Assert.Equal(Side.Back, AttributeHelpers.GetSide("BACK")); Assert.Null(AttributeHelpers.GetSide("")); Assert.Null(AttributeHelpers.GetSide(null)); Assert.Null(AttributeHelpers.GetSide("SOME_RANDOM_STRING")); }