You can simulate @ref by hand actually. It's not pretty but it works.

On 7 Mar 2013, at 19:01, Andrew Hankinson <notifications@github.com> wrote:

> In Tests/Foundation/CPNumberFormatterTest.j:
> 
> > @@ -48,6 +48,29 @@
> >      [self assert:@"1 234 567" equals:[numberFormatter stringFromNumber:[CPNumber numberWithInt:1234567]]];
> >  }
> >  
> > +- (void)testMinimumMaximumValues
> > +{
> > +    var numberFormatter = [CPNumberFormatter new],
> > +        noneFunction = function() {};
> > +
> > +    [numberFormatter setMinimum:10];
> > +    [numberFormatter setMaximum:20];
> > +
> > +    [self assertTrue:[numberFormatter getObjectValue:noneFunction forString:@"10" errorDescription:nil]];
> Without @reference I don't think we can pass an error string by reference. I can update the method to say that it is not implemented yet.
> 
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