public void ConvertBack()
 {
     var converter = new GetFirstValidationErrorConverter();
     Assert.AreEqual(ConverterHelper.UnsetValue, converter.ConvertBack(null, typeof (object), null, null));
 }
 public void Convert_Null()
 {
     var converter = new GetFirstValidationErrorConverter();
     Assert.AreEqual(string.Empty, converter.Convert(null, typeof (string), null, null));
 }