Re: test case generator for tidy

----- Original Message ----- 
From: "Terry Teague" <terry_teague@xxxxxxxxxxxxxxxxxxxxx>
Newsgroups: gmane.comp.web.html-tidy.devel
Sent: Tuesday, October 26, 2004 7:47 AM
Subject: Re: test case generator for tidy


> At 11:12 AM +0100 10/25/04, Arnaud Desitter wrote:
> > A tool reminiscent of "fuzz" that generates random HTML page in
> > described and available at:
> > http://www.securityfocus.com/archive/1/378632
> > Its name is "mangleme".
>
>
> Thanks for bringing that tool to our attention. We can't hope to generate
> all the possible test cases manually, and we usually rely on nasty X(HT)ML
> in the wild.
>
>
> > It quickly generated test cases that makes tidy crash (for instance,
> > see bug #1050684) or spin infinitely (see 1050673 and  1053626).
> >
> > With a bit of experimentation, it seems to be two general categories:
> > - crash due to dereferencing of NULL pointer. It is usually due to
> >  attribute with no value. These bugs are easily fixed (see 1050684
> >  for instance). Tweaking mangleme to generates shorter attributes
> >  names helps to simplify the test cases.
>
>
> Yes, there are probably a number of these sort of bugs - many have been
> fixed over the years, some from existing test cases.
>
>
> > - infinite loops. Much harder to fix IMO. Disabling the attribute
>
>
> Yep.

As far as I can see, most infinite loops comes from "rogue" <NOFRAMES>.

> > It would be nice to add this test tool to the CVS repository. But
> > is not my decision.
>
>
> Will consider it.
>
>
> Regards, Terry
>
>
>
>
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