public void NavigationViewModelPermissionVisibilityConverter_Convert_ValueIsNull_DefaultValue()
{
//------------Setup for test--------------------------
var converter = new NavigationViewModelPermissionVisibilityConverter();
//------------Execute Test---------------------------
var actual = converter.ConvertBack(null, typeof(Visibility), null, CultureInfo.CurrentCulture);
//------------Assert Results-------------------------
Assert.IsNull(actual);
}