Re: Assume

Hi Daniel,

That would definitely be the way to implement it at test run time.
I just don't see the usefulness of an interface that lets users
specify something called an assumption and then ignores it when
it fails.

I do understand how Assume would be used as a "clause" in a
theory specification, but as a standalone verb the semantics
seem wrong to me.

Essentially, if a is called, I want it to do its job, not say
"Oh, this data isn't useful, so I'll just return"  Something
outside the test should be feeding it useful data, IMO.

Charlie  

> -----Original Message-----
> From: Daniel M. Pomerantz [mailto:[email protected]] 
> Sent: Friday, February 15, 2008 12:45 PM
> To: Charlie Poole
> Cc: 'Kelly Anderson'; [email protected]
> Subject: Re: [nunit-developer] Assume
> 
> How about anything inside of Assume throws an AssumptionException.
> 
> Inside of your code, wrap your method inside of a try that 
> catches AssumptionExceptions and then swallows it.  That way, 
> you can succeed even if the assumptions fail?
> 
> dmp
> 
> Charlie Poole wrote:
> > Hi Kelly,
> >
> >   
> >>   I didn't see that you responded to the idea of creating 
> an Assume 
> >> class that was the same as the Assert class, except that 
> instead of 
> >> throwing the exception, it just returned silently if the result 
> >> returned true.
> >>
> >>  The example was:
> >>
> >> [Test]
> >> public void Divide()
> >> {
> >>   Assume.That(denominator, Is.Not(0));
> >>   Assert.That( ... numerator/denominator ...); }
> >>
> >>   Would that be easy or hard?
> >>     
> >
> > Well, I don't know how to do it in normal managed code - 
> assuming you 
> > mean return from the Divide method.
> >
> > However, I don't think you want it to just return, which 
> would imply a 
> > successful test. Rather, you probably mean to have it return some 
> > indication that this particular data is not being used... right?
> >  
> >   
> >>   Do you think it's worth having?
> >>     
> >
> > As part of a full-fledged Theory implementation, Yes.
> > As a separate thing, I can't see much value.
> >
> > Charlie
> >
> >   
> >> -Kelly
> >>
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> >>     
> >
> >
> >
> > 
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> >
> >   
> 



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